1 /*===-- llvm-c/Core.h - Core Library C Interface ------------------*- C -*-===*\
2 |*                                                                            *|
3 |* Part of the LLVM Project, under the Apache License v2.0 with LLVM          *|
4 |* Exceptions.                                                                *|
5 |* See https://llvm.org/LICENSE.txt for license information.                  *|
6 |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception                    *|
7 |*                                                                            *|
8 |*===----------------------------------------------------------------------===*|
9 |*                                                                            *|
10 |* This header declares the C interface to libLLVMCore.a, which implements    *|
11 |* the LLVM intermediate representation.                                      *|
12 |*                                                                            *|
13 \*===----------------------------------------------------------------------===*/
14 
15 #ifndef LLVM_C_CORE_H
16 #define LLVM_C_CORE_H
17 
18 #include "llvm-c/Deprecated.h"
19 #include "llvm-c/ErrorHandling.h"
20 #include "llvm-c/ExternC.h"
21 
22 #include "llvm-c/Types.h"
23 
24 LLVM_C_EXTERN_C_BEGIN
25 
26 /**
27  * @defgroup LLVMC LLVM-C: C interface to LLVM
28  *
29  * This module exposes parts of the LLVM library as a C API.
30  *
31  * @{
32  */
33 
34 /**
35  * @defgroup LLVMCTransforms Transforms
36  */
37 
38 /**
39  * @defgroup LLVMCCore Core
40  *
41  * This modules provide an interface to libLLVMCore, which implements
42  * the LLVM intermediate representation as well as other related types
43  * and utilities.
44  *
45  * Many exotic languages can interoperate with C code but have a harder time
46  * with C++ due to name mangling. So in addition to C, this interface enables
47  * tools written in such languages.
48  *
49  * @{
50  */
51 
52 /**
53  * @defgroup LLVMCCoreTypes Types and Enumerations
54  *
55  * @{
56  */
57 
58 /// External users depend on the following values being stable. It is not safe
59 /// to reorder them.
60 typedef enum {
61   /* Terminator Instructions */
62   LLVMRet            = 1,
63   LLVMBr             = 2,
64   LLVMSwitch         = 3,
65   LLVMIndirectBr     = 4,
66   LLVMInvoke         = 5,
67   /* removed 6 due to API changes */
68   LLVMUnreachable    = 7,
69   LLVMCallBr         = 67,
70 
71   /* Standard Unary Operators */
72   LLVMFNeg           = 66,
73 
74   /* Standard Binary Operators */
75   LLVMAdd            = 8,
76   LLVMFAdd           = 9,
77   LLVMSub            = 10,
78   LLVMFSub           = 11,
79   LLVMMul            = 12,
80   LLVMFMul           = 13,
81   LLVMUDiv           = 14,
82   LLVMSDiv           = 15,
83   LLVMFDiv           = 16,
84   LLVMURem           = 17,
85   LLVMSRem           = 18,
86   LLVMFRem           = 19,
87 
88   /* Logical Operators */
89   LLVMShl            = 20,
90   LLVMLShr           = 21,
91   LLVMAShr           = 22,
92   LLVMAnd            = 23,
93   LLVMOr             = 24,
94   LLVMXor            = 25,
95 
96   /* Memory Operators */
97   LLVMAlloca         = 26,
98   LLVMLoad           = 27,
99   LLVMStore          = 28,
100   LLVMGetElementPtr  = 29,
101 
102   /* Cast Operators */
103   LLVMTrunc          = 30,
104   LLVMZExt           = 31,
105   LLVMSExt           = 32,
106   LLVMFPToUI         = 33,
107   LLVMFPToSI         = 34,
108   LLVMUIToFP         = 35,
109   LLVMSIToFP         = 36,
110   LLVMFPTrunc        = 37,
111   LLVMFPExt          = 38,
112   LLVMPtrToInt       = 39,
113   LLVMIntToPtr       = 40,
114   LLVMBitCast        = 41,
115   LLVMAddrSpaceCast  = 60,
116 
117   /* Other Operators */
118   LLVMICmp           = 42,
119   LLVMFCmp           = 43,
120   LLVMPHI            = 44,
121   LLVMCall           = 45,
122   LLVMSelect         = 46,
123   LLVMUserOp1        = 47,
124   LLVMUserOp2        = 48,
125   LLVMVAArg          = 49,
126   LLVMExtractElement = 50,
127   LLVMInsertElement  = 51,
128   LLVMShuffleVector  = 52,
129   LLVMExtractValue   = 53,
130   LLVMInsertValue    = 54,
131   LLVMFreeze         = 68,
132 
133   /* Atomic operators */
134   LLVMFence          = 55,
135   LLVMAtomicCmpXchg  = 56,
136   LLVMAtomicRMW      = 57,
137 
138   /* Exception Handling Operators */
139   LLVMResume         = 58,
140   LLVMLandingPad     = 59,
141   LLVMCleanupRet     = 61,
142   LLVMCatchRet       = 62,
143   LLVMCatchPad       = 63,
144   LLVMCleanupPad     = 64,
145   LLVMCatchSwitch    = 65
146 } LLVMOpcode;
147 
148 typedef enum {
149   LLVMVoidTypeKind,      /**< type with no size */
150   LLVMHalfTypeKind,      /**< 16 bit floating point type */
151   LLVMFloatTypeKind,     /**< 32 bit floating point type */
152   LLVMDoubleTypeKind,    /**< 64 bit floating point type */
153   LLVMX86_FP80TypeKind,  /**< 80 bit floating point type (X87) */
154   LLVMFP128TypeKind,     /**< 128 bit floating point type (112-bit mantissa)*/
155   LLVMPPC_FP128TypeKind, /**< 128 bit floating point type (two 64-bits) */
156   LLVMLabelTypeKind,     /**< Labels */
157   LLVMIntegerTypeKind,   /**< Arbitrary bit width integers */
158   LLVMFunctionTypeKind,  /**< Functions */
159   LLVMStructTypeKind,    /**< Structures */
160   LLVMArrayTypeKind,     /**< Arrays */
161   LLVMPointerTypeKind,   /**< Pointers */
162   LLVMVectorTypeKind,    /**< Fixed width SIMD vector type */
163   LLVMMetadataTypeKind,  /**< Metadata */
164   LLVMX86_MMXTypeKind,   /**< X86 MMX */
165   LLVMTokenTypeKind,     /**< Tokens */
166   LLVMScalableVectorTypeKind, /**< Scalable SIMD vector type */
167   LLVMBFloatTypeKind,    /**< 16 bit brain floating point type */
168   LLVMX86_AMXTypeKind    /**< X86 AMX */
169 } LLVMTypeKind;
170 
171 typedef enum {
172   LLVMExternalLinkage,    /**< Externally visible function */
173   LLVMAvailableExternallyLinkage,
174   LLVMLinkOnceAnyLinkage, /**< Keep one copy of function when linking (inline)*/
175   LLVMLinkOnceODRLinkage, /**< Same, but only replaced by something
176                             equivalent. */
177   LLVMLinkOnceODRAutoHideLinkage, /**< Obsolete */
178   LLVMWeakAnyLinkage,     /**< Keep one copy of function when linking (weak) */
179   LLVMWeakODRLinkage,     /**< Same, but only replaced by something
180                             equivalent. */
181   LLVMAppendingLinkage,   /**< Special purpose, only applies to global arrays */
182   LLVMInternalLinkage,    /**< Rename collisions when linking (static
183                                functions) */
184   LLVMPrivateLinkage,     /**< Like Internal, but omit from symbol table */
185   LLVMDLLImportLinkage,   /**< Obsolete */
186   LLVMDLLExportLinkage,   /**< Obsolete */
187   LLVMExternalWeakLinkage,/**< ExternalWeak linkage description */
188   LLVMGhostLinkage,       /**< Obsolete */
189   LLVMCommonLinkage,      /**< Tentative definitions */
190   LLVMLinkerPrivateLinkage, /**< Like Private, but linker removes. */
191   LLVMLinkerPrivateWeakLinkage /**< Like LinkerPrivate, but is weak. */
192 } LLVMLinkage;
193 
194 typedef enum {
195   LLVMDefaultVisibility,  /**< The GV is visible */
196   LLVMHiddenVisibility,   /**< The GV is hidden */
197   LLVMProtectedVisibility /**< The GV is protected */
198 } LLVMVisibility;
199 
200 typedef enum {
201   LLVMNoUnnamedAddr,    /**< Address of the GV is significant. */
202   LLVMLocalUnnamedAddr, /**< Address of the GV is locally insignificant. */
203   LLVMGlobalUnnamedAddr /**< Address of the GV is globally insignificant. */
204 } LLVMUnnamedAddr;
205 
206 typedef enum {
207   LLVMDefaultStorageClass   = 0,
208   LLVMDLLImportStorageClass = 1, /**< Function to be imported from DLL. */
209   LLVMDLLExportStorageClass = 2  /**< Function to be accessible from DLL. */
210 } LLVMDLLStorageClass;
211 
212 typedef enum {
213   LLVMCCallConv             = 0,
214   LLVMFastCallConv          = 8,
215   LLVMColdCallConv          = 9,
216   LLVMGHCCallConv           = 10,
217   LLVMHiPECallConv          = 11,
218   LLVMWebKitJSCallConv      = 12,
219   LLVMAnyRegCallConv        = 13,
220   LLVMPreserveMostCallConv  = 14,
221   LLVMPreserveAllCallConv   = 15,
222   LLVMSwiftCallConv         = 16,
223   LLVMCXXFASTTLSCallConv    = 17,
224   LLVMX86StdcallCallConv    = 64,
225   LLVMX86FastcallCallConv   = 65,
226   LLVMARMAPCSCallConv       = 66,
227   LLVMARMAAPCSCallConv      = 67,
228   LLVMARMAAPCSVFPCallConv   = 68,
229   LLVMMSP430INTRCallConv    = 69,
230   LLVMX86ThisCallCallConv   = 70,
231   LLVMPTXKernelCallConv     = 71,
232   LLVMPTXDeviceCallConv     = 72,
233   LLVMSPIRFUNCCallConv      = 75,
234   LLVMSPIRKERNELCallConv    = 76,
235   LLVMIntelOCLBICallConv    = 77,
236   LLVMX8664SysVCallConv     = 78,
237   LLVMWin64CallConv         = 79,
238   LLVMX86VectorCallCallConv = 80,
239   LLVMHHVMCallConv          = 81,
240   LLVMHHVMCCallConv         = 82,
241   LLVMX86INTRCallConv       = 83,
242   LLVMAVRINTRCallConv       = 84,
243   LLVMAVRSIGNALCallConv     = 85,
244   LLVMAVRBUILTINCallConv    = 86,
245   LLVMAMDGPUVSCallConv      = 87,
246   LLVMAMDGPUGSCallConv      = 88,
247   LLVMAMDGPUPSCallConv      = 89,
248   LLVMAMDGPUCSCallConv      = 90,
249   LLVMAMDGPUKERNELCallConv  = 91,
250   LLVMX86RegCallCallConv    = 92,
251   LLVMAMDGPUHSCallConv      = 93,
252   LLVMMSP430BUILTINCallConv = 94,
253   LLVMAMDGPULSCallConv      = 95,
254   LLVMAMDGPUESCallConv      = 96
255 } LLVMCallConv;
256 
257 typedef enum {
258   LLVMArgumentValueKind,
259   LLVMBasicBlockValueKind,
260   LLVMMemoryUseValueKind,
261   LLVMMemoryDefValueKind,
262   LLVMMemoryPhiValueKind,
263 
264   LLVMFunctionValueKind,
265   LLVMGlobalAliasValueKind,
266   LLVMGlobalIFuncValueKind,
267   LLVMGlobalVariableValueKind,
268   LLVMBlockAddressValueKind,
269   LLVMConstantExprValueKind,
270   LLVMConstantArrayValueKind,
271   LLVMConstantStructValueKind,
272   LLVMConstantVectorValueKind,
273 
274   LLVMUndefValueValueKind,
275   LLVMConstantAggregateZeroValueKind,
276   LLVMConstantDataArrayValueKind,
277   LLVMConstantDataVectorValueKind,
278   LLVMConstantIntValueKind,
279   LLVMConstantFPValueKind,
280   LLVMConstantPointerNullValueKind,
281   LLVMConstantTokenNoneValueKind,
282 
283   LLVMMetadataAsValueValueKind,
284   LLVMInlineAsmValueKind,
285 
286   LLVMInstructionValueKind,
287   LLVMPoisonValueValueKind
288 } LLVMValueKind;
289 
290 typedef enum {
291   LLVMIntEQ = 32, /**< equal */
292   LLVMIntNE,      /**< not equal */
293   LLVMIntUGT,     /**< unsigned greater than */
294   LLVMIntUGE,     /**< unsigned greater or equal */
295   LLVMIntULT,     /**< unsigned less than */
296   LLVMIntULE,     /**< unsigned less or equal */
297   LLVMIntSGT,     /**< signed greater than */
298   LLVMIntSGE,     /**< signed greater or equal */
299   LLVMIntSLT,     /**< signed less than */
300   LLVMIntSLE      /**< signed less or equal */
301 } LLVMIntPredicate;
302 
303 typedef enum {
304   LLVMRealPredicateFalse, /**< Always false (always folded) */
305   LLVMRealOEQ,            /**< True if ordered and equal */
306   LLVMRealOGT,            /**< True if ordered and greater than */
307   LLVMRealOGE,            /**< True if ordered and greater than or equal */
308   LLVMRealOLT,            /**< True if ordered and less than */
309   LLVMRealOLE,            /**< True if ordered and less than or equal */
310   LLVMRealONE,            /**< True if ordered and operands are unequal */
311   LLVMRealORD,            /**< True if ordered (no nans) */
312   LLVMRealUNO,            /**< True if unordered: isnan(X) | isnan(Y) */
313   LLVMRealUEQ,            /**< True if unordered or equal */
314   LLVMRealUGT,            /**< True if unordered or greater than */
315   LLVMRealUGE,            /**< True if unordered, greater than, or equal */
316   LLVMRealULT,            /**< True if unordered or less than */
317   LLVMRealULE,            /**< True if unordered, less than, or equal */
318   LLVMRealUNE,            /**< True if unordered or not equal */
319   LLVMRealPredicateTrue   /**< Always true (always folded) */
320 } LLVMRealPredicate;
321 
322 typedef enum {
323   LLVMLandingPadCatch,    /**< A catch clause   */
324   LLVMLandingPadFilter    /**< A filter clause  */
325 } LLVMLandingPadClauseTy;
326 
327 typedef enum {
328   LLVMNotThreadLocal = 0,
329   LLVMGeneralDynamicTLSModel,
330   LLVMLocalDynamicTLSModel,
331   LLVMInitialExecTLSModel,
332   LLVMLocalExecTLSModel
333 } LLVMThreadLocalMode;
334 
335 typedef enum {
336   LLVMAtomicOrderingNotAtomic = 0, /**< A load or store which is not atomic */
337   LLVMAtomicOrderingUnordered = 1, /**< Lowest level of atomicity, guarantees
338                                      somewhat sane results, lock free. */
339   LLVMAtomicOrderingMonotonic = 2, /**< guarantees that if you take all the
340                                      operations affecting a specific address,
341                                      a consistent ordering exists */
342   LLVMAtomicOrderingAcquire = 4, /**< Acquire provides a barrier of the sort
343                                    necessary to acquire a lock to access other
344                                    memory with normal loads and stores. */
345   LLVMAtomicOrderingRelease = 5, /**< Release is similar to Acquire, but with
346                                    a barrier of the sort necessary to release
347                                    a lock. */
348   LLVMAtomicOrderingAcquireRelease = 6, /**< provides both an Acquire and a
349                                           Release barrier (for fences and
350                                           operations which both read and write
351                                            memory). */
352   LLVMAtomicOrderingSequentiallyConsistent = 7 /**< provides Acquire semantics
353                                                  for loads and Release
354                                                  semantics for stores.
355                                                  Additionally, it guarantees
356                                                  that a total ordering exists
357                                                  between all
358                                                  SequentiallyConsistent
359                                                  operations. */
360 } LLVMAtomicOrdering;
361 
362 typedef enum {
363     LLVMAtomicRMWBinOpXchg, /**< Set the new value and return the one old */
364     LLVMAtomicRMWBinOpAdd, /**< Add a value and return the old one */
365     LLVMAtomicRMWBinOpSub, /**< Subtract a value and return the old one */
366     LLVMAtomicRMWBinOpAnd, /**< And a value and return the old one */
367     LLVMAtomicRMWBinOpNand, /**< Not-And a value and return the old one */
368     LLVMAtomicRMWBinOpOr, /**< OR a value and return the old one */
369     LLVMAtomicRMWBinOpXor, /**< Xor a value and return the old one */
370     LLVMAtomicRMWBinOpMax, /**< Sets the value if it's greater than the
371                              original using a signed comparison and return
372                              the old one */
373     LLVMAtomicRMWBinOpMin, /**< Sets the value if it's Smaller than the
374                              original using a signed comparison and return
375                              the old one */
376     LLVMAtomicRMWBinOpUMax, /**< Sets the value if it's greater than the
377                              original using an unsigned comparison and return
378                              the old one */
379     LLVMAtomicRMWBinOpUMin, /**< Sets the value if it's greater than the
380                               original using an unsigned comparison and return
381                               the old one */
382     LLVMAtomicRMWBinOpFAdd, /**< Add a floating point value and return the
383                               old one */
384     LLVMAtomicRMWBinOpFSub, /**< Subtract a floating point value and return the
385                             old one */
386     LLVMAtomicRMWBinOpFMax, /**< Sets the value if it's greater than the
387                              original using an floating point comparison and
388                              return the old one */
389     LLVMAtomicRMWBinOpFMin, /**< Sets the value if it's smaller than the
390                              original using an floating point comparison and
391                              return the old one */
392 } LLVMAtomicRMWBinOp;
393 
394 typedef enum {
395     LLVMDSError,
396     LLVMDSWarning,
397     LLVMDSRemark,
398     LLVMDSNote
399 } LLVMDiagnosticSeverity;
400 
401 typedef enum {
402   LLVMInlineAsmDialectATT,
403   LLVMInlineAsmDialectIntel
404 } LLVMInlineAsmDialect;
405 
406 typedef enum {
407   /**
408    * Emits an error if two values disagree, otherwise the resulting value is
409    * that of the operands.
410    *
411    * @see Module::ModFlagBehavior::Error
412    */
413   LLVMModuleFlagBehaviorError,
414   /**
415    * Emits a warning if two values disagree. The result value will be the
416    * operand for the flag from the first module being linked.
417    *
418    * @see Module::ModFlagBehavior::Warning
419    */
420   LLVMModuleFlagBehaviorWarning,
421   /**
422    * Adds a requirement that another module flag be present and have a
423    * specified value after linking is performed. The value must be a metadata
424    * pair, where the first element of the pair is the ID of the module flag
425    * to be restricted, and the second element of the pair is the value the
426    * module flag should be restricted to. This behavior can be used to
427    * restrict the allowable results (via triggering of an error) of linking
428    * IDs with the **Override** behavior.
429    *
430    * @see Module::ModFlagBehavior::Require
431    */
432   LLVMModuleFlagBehaviorRequire,
433   /**
434    * Uses the specified value, regardless of the behavior or value of the
435    * other module. If both modules specify **Override**, but the values
436    * differ, an error will be emitted.
437    *
438    * @see Module::ModFlagBehavior::Override
439    */
440   LLVMModuleFlagBehaviorOverride,
441   /**
442    * Appends the two values, which are required to be metadata nodes.
443    *
444    * @see Module::ModFlagBehavior::Append
445    */
446   LLVMModuleFlagBehaviorAppend,
447   /**
448    * Appends the two values, which are required to be metadata
449    * nodes. However, duplicate entries in the second list are dropped
450    * during the append operation.
451    *
452    * @see Module::ModFlagBehavior::AppendUnique
453    */
454   LLVMModuleFlagBehaviorAppendUnique,
455 } LLVMModuleFlagBehavior;
456 
457 /**
458  * Attribute index are either LLVMAttributeReturnIndex,
459  * LLVMAttributeFunctionIndex or a parameter number from 1 to N.
460  */
461 enum {
462   LLVMAttributeReturnIndex = 0U,
463   // ISO C restricts enumerator values to range of 'int'
464   // (4294967295 is too large)
465   // LLVMAttributeFunctionIndex = ~0U,
466   LLVMAttributeFunctionIndex = -1,
467 };
468 
469 typedef unsigned LLVMAttributeIndex;
470 
471 /**
472  * @}
473  */
474 
475 void LLVMInitializeCore(LLVMPassRegistryRef R);
476 
477 /** Deallocate and destroy all ManagedStatic variables.
478     @see llvm::llvm_shutdown
479     @see ManagedStatic */
480 void LLVMShutdown(void);
481 
482 /*===-- Error handling ----------------------------------------------------===*/
483 
484 char *LLVMCreateMessage(const char *Message);
485 void LLVMDisposeMessage(char *Message);
486 
487 /**
488  * @defgroup LLVMCCoreContext Contexts
489  *
490  * Contexts are execution states for the core LLVM IR system.
491  *
492  * Most types are tied to a context instance. Multiple contexts can
493  * exist simultaneously. A single context is not thread safe. However,
494  * different contexts can execute on different threads simultaneously.
495  *
496  * @{
497  */
498 
499 typedef void (*LLVMDiagnosticHandler)(LLVMDiagnosticInfoRef, void *);
500 typedef void (*LLVMYieldCallback)(LLVMContextRef, void *);
501 
502 /**
503  * Create a new context.
504  *
505  * Every call to this function should be paired with a call to
506  * LLVMContextDispose() or the context will leak memory.
507  */
508 LLVMContextRef LLVMContextCreate(void);
509 
510 /**
511  * Obtain the global context instance.
512  */
513 LLVMContextRef LLVMGetGlobalContext(void);
514 
515 /**
516  * Set the diagnostic handler for this context.
517  */
518 void LLVMContextSetDiagnosticHandler(LLVMContextRef C,
519                                      LLVMDiagnosticHandler Handler,
520                                      void *DiagnosticContext);
521 
522 /**
523  * Get the diagnostic handler of this context.
524  */
525 LLVMDiagnosticHandler LLVMContextGetDiagnosticHandler(LLVMContextRef C);
526 
527 /**
528  * Get the diagnostic context of this context.
529  */
530 void *LLVMContextGetDiagnosticContext(LLVMContextRef C);
531 
532 /**
533  * Set the yield callback function for this context.
534  *
535  * @see LLVMContext::setYieldCallback()
536  */
537 void LLVMContextSetYieldCallback(LLVMContextRef C, LLVMYieldCallback Callback,
538                                  void *OpaqueHandle);
539 
540 /**
541  * Retrieve whether the given context is set to discard all value names.
542  *
543  * @see LLVMContext::shouldDiscardValueNames()
544  */
545 LLVMBool LLVMContextShouldDiscardValueNames(LLVMContextRef C);
546 
547 /**
548  * Set whether the given context discards all value names.
549  *
550  * If true, only the names of GlobalValue objects will be available in the IR.
551  * This can be used to save memory and runtime, especially in release mode.
552  *
553  * @see LLVMContext::setDiscardValueNames()
554  */
555 void LLVMContextSetDiscardValueNames(LLVMContextRef C, LLVMBool Discard);
556 
557 /**
558  * Set whether the given context is in opaque pointer mode.
559  *
560  * @see LLVMContext::setOpaquePointers()
561  */
562 void LLVMContextSetOpaquePointers(LLVMContextRef C, LLVMBool OpaquePointers);
563 
564 /**
565  * Destroy a context instance.
566  *
567  * This should be called for every call to LLVMContextCreate() or memory
568  * will be leaked.
569  */
570 void LLVMContextDispose(LLVMContextRef C);
571 
572 /**
573  * Return a string representation of the DiagnosticInfo. Use
574  * LLVMDisposeMessage to free the string.
575  *
576  * @see DiagnosticInfo::print()
577  */
578 char *LLVMGetDiagInfoDescription(LLVMDiagnosticInfoRef DI);
579 
580 /**
581  * Return an enum LLVMDiagnosticSeverity.
582  *
583  * @see DiagnosticInfo::getSeverity()
584  */
585 LLVMDiagnosticSeverity LLVMGetDiagInfoSeverity(LLVMDiagnosticInfoRef DI);
586 
587 unsigned LLVMGetMDKindIDInContext(LLVMContextRef C, const char *Name,
588                                   unsigned SLen);
589 unsigned LLVMGetMDKindID(const char *Name, unsigned SLen);
590 
591 /**
592  * Return an unique id given the name of a enum attribute,
593  * or 0 if no attribute by that name exists.
594  *
595  * See http://llvm.org/docs/LangRef.html#parameter-attributes
596  * and http://llvm.org/docs/LangRef.html#function-attributes
597  * for the list of available attributes.
598  *
599  * NB: Attribute names and/or id are subject to change without
600  * going through the C API deprecation cycle.
601  */
602 unsigned LLVMGetEnumAttributeKindForName(const char *Name, size_t SLen);
603 unsigned LLVMGetLastEnumAttributeKind(void);
604 
605 /**
606  * Create an enum attribute.
607  */
608 LLVMAttributeRef LLVMCreateEnumAttribute(LLVMContextRef C, unsigned KindID,
609                                          uint64_t Val);
610 
611 /**
612  * Get the unique id corresponding to the enum attribute
613  * passed as argument.
614  */
615 unsigned LLVMGetEnumAttributeKind(LLVMAttributeRef A);
616 
617 /**
618  * Get the enum attribute's value. 0 is returned if none exists.
619  */
620 uint64_t LLVMGetEnumAttributeValue(LLVMAttributeRef A);
621 
622 /**
623  * Create a type attribute
624  */
625 LLVMAttributeRef LLVMCreateTypeAttribute(LLVMContextRef C, unsigned KindID,
626                                          LLVMTypeRef type_ref);
627 
628 /**
629  * Get the type attribute's value.
630  */
631 LLVMTypeRef LLVMGetTypeAttributeValue(LLVMAttributeRef A);
632 
633 /**
634  * Create a string attribute.
635  */
636 LLVMAttributeRef LLVMCreateStringAttribute(LLVMContextRef C,
637                                            const char *K, unsigned KLength,
638                                            const char *V, unsigned VLength);
639 
640 /**
641  * Get the string attribute's kind.
642  */
643 const char *LLVMGetStringAttributeKind(LLVMAttributeRef A, unsigned *Length);
644 
645 /**
646  * Get the string attribute's value.
647  */
648 const char *LLVMGetStringAttributeValue(LLVMAttributeRef A, unsigned *Length);
649 
650 /**
651  * Check for the different types of attributes.
652  */
653 LLVMBool LLVMIsEnumAttribute(LLVMAttributeRef A);
654 LLVMBool LLVMIsStringAttribute(LLVMAttributeRef A);
655 LLVMBool LLVMIsTypeAttribute(LLVMAttributeRef A);
656 
657 /**
658  * Obtain a Type from a context by its registered name.
659  */
660 LLVMTypeRef LLVMGetTypeByName2(LLVMContextRef C, const char *Name);
661 
662 /**
663  * @}
664  */
665 
666 /**
667  * @defgroup LLVMCCoreModule Modules
668  *
669  * Modules represent the top-level structure in an LLVM program. An LLVM
670  * module is effectively a translation unit or a collection of
671  * translation units merged together.
672  *
673  * @{
674  */
675 
676 /**
677  * Create a new, empty module in the global context.
678  *
679  * This is equivalent to calling LLVMModuleCreateWithNameInContext with
680  * LLVMGetGlobalContext() as the context parameter.
681  *
682  * Every invocation should be paired with LLVMDisposeModule() or memory
683  * will be leaked.
684  */
685 LLVMModuleRef LLVMModuleCreateWithName(const char *ModuleID);
686 
687 /**
688  * Create a new, empty module in a specific context.
689  *
690  * Every invocation should be paired with LLVMDisposeModule() or memory
691  * will be leaked.
692  */
693 LLVMModuleRef LLVMModuleCreateWithNameInContext(const char *ModuleID,
694                                                 LLVMContextRef C);
695 /**
696  * Return an exact copy of the specified module.
697  */
698 LLVMModuleRef LLVMCloneModule(LLVMModuleRef M);
699 
700 /**
701  * Destroy a module instance.
702  *
703  * This must be called for every created module or memory will be
704  * leaked.
705  */
706 void LLVMDisposeModule(LLVMModuleRef M);
707 
708 /**
709  * Obtain the identifier of a module.
710  *
711  * @param M Module to obtain identifier of
712  * @param Len Out parameter which holds the length of the returned string.
713  * @return The identifier of M.
714  * @see Module::getModuleIdentifier()
715  */
716 const char *LLVMGetModuleIdentifier(LLVMModuleRef M, size_t *Len);
717 
718 /**
719  * Set the identifier of a module to a string Ident with length Len.
720  *
721  * @param M The module to set identifier
722  * @param Ident The string to set M's identifier to
723  * @param Len Length of Ident
724  * @see Module::setModuleIdentifier()
725  */
726 void LLVMSetModuleIdentifier(LLVMModuleRef M, const char *Ident, size_t Len);
727 
728 /**
729  * Obtain the module's original source file name.
730  *
731  * @param M Module to obtain the name of
732  * @param Len Out parameter which holds the length of the returned string
733  * @return The original source file name of M
734  * @see Module::getSourceFileName()
735  */
736 const char *LLVMGetSourceFileName(LLVMModuleRef M, size_t *Len);
737 
738 /**
739  * Set the original source file name of a module to a string Name with length
740  * Len.
741  *
742  * @param M The module to set the source file name of
743  * @param Name The string to set M's source file name to
744  * @param Len Length of Name
745  * @see Module::setSourceFileName()
746  */
747 void LLVMSetSourceFileName(LLVMModuleRef M, const char *Name, size_t Len);
748 
749 /**
750  * Obtain the data layout for a module.
751  *
752  * @see Module::getDataLayoutStr()
753  *
754  * LLVMGetDataLayout is DEPRECATED, as the name is not only incorrect,
755  * but match the name of another method on the module. Prefer the use
756  * of LLVMGetDataLayoutStr, which is not ambiguous.
757  */
758 const char *LLVMGetDataLayoutStr(LLVMModuleRef M);
759 const char *LLVMGetDataLayout(LLVMModuleRef M);
760 
761 /**
762  * Set the data layout for a module.
763  *
764  * @see Module::setDataLayout()
765  */
766 void LLVMSetDataLayout(LLVMModuleRef M, const char *DataLayoutStr);
767 
768 /**
769  * Obtain the target triple for a module.
770  *
771  * @see Module::getTargetTriple()
772  */
773 const char *LLVMGetTarget(LLVMModuleRef M);
774 
775 /**
776  * Set the target triple for a module.
777  *
778  * @see Module::setTargetTriple()
779  */
780 void LLVMSetTarget(LLVMModuleRef M, const char *Triple);
781 
782 /**
783  * Returns the module flags as an array of flag-key-value triples.  The caller
784  * is responsible for freeing this array by calling
785  * \c LLVMDisposeModuleFlagsMetadata.
786  *
787  * @see Module::getModuleFlagsMetadata()
788  */
789 LLVMModuleFlagEntry *LLVMCopyModuleFlagsMetadata(LLVMModuleRef M, size_t *Len);
790 
791 /**
792  * Destroys module flags metadata entries.
793  */
794 void LLVMDisposeModuleFlagsMetadata(LLVMModuleFlagEntry *Entries);
795 
796 /**
797  * Returns the flag behavior for a module flag entry at a specific index.
798  *
799  * @see Module::ModuleFlagEntry::Behavior
800  */
801 LLVMModuleFlagBehavior
802 LLVMModuleFlagEntriesGetFlagBehavior(LLVMModuleFlagEntry *Entries,
803                                      unsigned Index);
804 
805 /**
806  * Returns the key for a module flag entry at a specific index.
807  *
808  * @see Module::ModuleFlagEntry::Key
809  */
810 const char *LLVMModuleFlagEntriesGetKey(LLVMModuleFlagEntry *Entries,
811                                         unsigned Index, size_t *Len);
812 
813 /**
814  * Returns the metadata for a module flag entry at a specific index.
815  *
816  * @see Module::ModuleFlagEntry::Val
817  */
818 LLVMMetadataRef LLVMModuleFlagEntriesGetMetadata(LLVMModuleFlagEntry *Entries,
819                                                  unsigned Index);
820 
821 /**
822  * Add a module-level flag to the module-level flags metadata if it doesn't
823  * already exist.
824  *
825  * @see Module::getModuleFlag()
826  */
827 LLVMMetadataRef LLVMGetModuleFlag(LLVMModuleRef M,
828                                   const char *Key, size_t KeyLen);
829 
830 /**
831  * Add a module-level flag to the module-level flags metadata if it doesn't
832  * already exist.
833  *
834  * @see Module::addModuleFlag()
835  */
836 void LLVMAddModuleFlag(LLVMModuleRef M, LLVMModuleFlagBehavior Behavior,
837                        const char *Key, size_t KeyLen,
838                        LLVMMetadataRef Val);
839 
840 /**
841  * Dump a representation of a module to stderr.
842  *
843  * @see Module::dump()
844  */
845 void LLVMDumpModule(LLVMModuleRef M);
846 
847 /**
848  * Print a representation of a module to a file. The ErrorMessage needs to be
849  * disposed with LLVMDisposeMessage. Returns 0 on success, 1 otherwise.
850  *
851  * @see Module::print()
852  */
853 LLVMBool LLVMPrintModuleToFile(LLVMModuleRef M, const char *Filename,
854                                char **ErrorMessage);
855 
856 /**
857  * Return a string representation of the module. Use
858  * LLVMDisposeMessage to free the string.
859  *
860  * @see Module::print()
861  */
862 char *LLVMPrintModuleToString(LLVMModuleRef M);
863 
864 /**
865  * Get inline assembly for a module.
866  *
867  * @see Module::getModuleInlineAsm()
868  */
869 const char *LLVMGetModuleInlineAsm(LLVMModuleRef M, size_t *Len);
870 
871 /**
872  * Set inline assembly for a module.
873  *
874  * @see Module::setModuleInlineAsm()
875  */
876 void LLVMSetModuleInlineAsm2(LLVMModuleRef M, const char *Asm, size_t Len);
877 
878 /**
879  * Append inline assembly to a module.
880  *
881  * @see Module::appendModuleInlineAsm()
882  */
883 void LLVMAppendModuleInlineAsm(LLVMModuleRef M, const char *Asm, size_t Len);
884 
885 /**
886  * Create the specified uniqued inline asm string.
887  *
888  * @see InlineAsm::get()
889  */
890 LLVMValueRef LLVMGetInlineAsm(LLVMTypeRef Ty, char *AsmString,
891                               size_t AsmStringSize, char *Constraints,
892                               size_t ConstraintsSize, LLVMBool HasSideEffects,
893                               LLVMBool IsAlignStack,
894                               LLVMInlineAsmDialect Dialect, LLVMBool CanThrow);
895 
896 /**
897  * Obtain the context to which this module is associated.
898  *
899  * @see Module::getContext()
900  */
901 LLVMContextRef LLVMGetModuleContext(LLVMModuleRef M);
902 
903 /** Deprecated: Use LLVMGetTypeByName2 instead. */
904 LLVMTypeRef LLVMGetTypeByName(LLVMModuleRef M, const char *Name);
905 
906 /**
907  * Obtain an iterator to the first NamedMDNode in a Module.
908  *
909  * @see llvm::Module::named_metadata_begin()
910  */
911 LLVMNamedMDNodeRef LLVMGetFirstNamedMetadata(LLVMModuleRef M);
912 
913 /**
914  * Obtain an iterator to the last NamedMDNode in a Module.
915  *
916  * @see llvm::Module::named_metadata_end()
917  */
918 LLVMNamedMDNodeRef LLVMGetLastNamedMetadata(LLVMModuleRef M);
919 
920 /**
921  * Advance a NamedMDNode iterator to the next NamedMDNode.
922  *
923  * Returns NULL if the iterator was already at the end and there are no more
924  * named metadata nodes.
925  */
926 LLVMNamedMDNodeRef LLVMGetNextNamedMetadata(LLVMNamedMDNodeRef NamedMDNode);
927 
928 /**
929  * Decrement a NamedMDNode iterator to the previous NamedMDNode.
930  *
931  * Returns NULL if the iterator was already at the beginning and there are
932  * no previous named metadata nodes.
933  */
934 LLVMNamedMDNodeRef LLVMGetPreviousNamedMetadata(LLVMNamedMDNodeRef NamedMDNode);
935 
936 /**
937  * Retrieve a NamedMDNode with the given name, returning NULL if no such
938  * node exists.
939  *
940  * @see llvm::Module::getNamedMetadata()
941  */
942 LLVMNamedMDNodeRef LLVMGetNamedMetadata(LLVMModuleRef M,
943                                         const char *Name, size_t NameLen);
944 
945 /**
946  * Retrieve a NamedMDNode with the given name, creating a new node if no such
947  * node exists.
948  *
949  * @see llvm::Module::getOrInsertNamedMetadata()
950  */
951 LLVMNamedMDNodeRef LLVMGetOrInsertNamedMetadata(LLVMModuleRef M,
952                                                 const char *Name,
953                                                 size_t NameLen);
954 
955 /**
956  * Retrieve the name of a NamedMDNode.
957  *
958  * @see llvm::NamedMDNode::getName()
959  */
960 const char *LLVMGetNamedMetadataName(LLVMNamedMDNodeRef NamedMD,
961                                      size_t *NameLen);
962 
963 /**
964  * Obtain the number of operands for named metadata in a module.
965  *
966  * @see llvm::Module::getNamedMetadata()
967  */
968 unsigned LLVMGetNamedMetadataNumOperands(LLVMModuleRef M, const char *Name);
969 
970 /**
971  * Obtain the named metadata operands for a module.
972  *
973  * The passed LLVMValueRef pointer should refer to an array of
974  * LLVMValueRef at least LLVMGetNamedMetadataNumOperands long. This
975  * array will be populated with the LLVMValueRef instances. Each
976  * instance corresponds to a llvm::MDNode.
977  *
978  * @see llvm::Module::getNamedMetadata()
979  * @see llvm::MDNode::getOperand()
980  */
981 void LLVMGetNamedMetadataOperands(LLVMModuleRef M, const char *Name,
982                                   LLVMValueRef *Dest);
983 
984 /**
985  * Add an operand to named metadata.
986  *
987  * @see llvm::Module::getNamedMetadata()
988  * @see llvm::MDNode::addOperand()
989  */
990 void LLVMAddNamedMetadataOperand(LLVMModuleRef M, const char *Name,
991                                  LLVMValueRef Val);
992 
993 /**
994  * Return the directory of the debug location for this value, which must be
995  * an llvm::Instruction, llvm::GlobalVariable, or llvm::Function.
996  *
997  * @see llvm::Instruction::getDebugLoc()
998  * @see llvm::GlobalVariable::getDebugInfo()
999  * @see llvm::Function::getSubprogram()
1000  */
1001 const char *LLVMGetDebugLocDirectory(LLVMValueRef Val, unsigned *Length);
1002 
1003 /**
1004  * Return the filename of the debug location for this value, which must be
1005  * an llvm::Instruction, llvm::GlobalVariable, or llvm::Function.
1006  *
1007  * @see llvm::Instruction::getDebugLoc()
1008  * @see llvm::GlobalVariable::getDebugInfo()
1009  * @see llvm::Function::getSubprogram()
1010  */
1011 const char *LLVMGetDebugLocFilename(LLVMValueRef Val, unsigned *Length);
1012 
1013 /**
1014  * Return the line number of the debug location for this value, which must be
1015  * an llvm::Instruction, llvm::GlobalVariable, or llvm::Function.
1016  *
1017  * @see llvm::Instruction::getDebugLoc()
1018  * @see llvm::GlobalVariable::getDebugInfo()
1019  * @see llvm::Function::getSubprogram()
1020  */
1021 unsigned LLVMGetDebugLocLine(LLVMValueRef Val);
1022 
1023 /**
1024  * Return the column number of the debug location for this value, which must be
1025  * an llvm::Instruction.
1026  *
1027  * @see llvm::Instruction::getDebugLoc()
1028  */
1029 unsigned LLVMGetDebugLocColumn(LLVMValueRef Val);
1030 
1031 /**
1032  * Add a function to a module under a specified name.
1033  *
1034  * @see llvm::Function::Create()
1035  */
1036 LLVMValueRef LLVMAddFunction(LLVMModuleRef M, const char *Name,
1037                              LLVMTypeRef FunctionTy);
1038 
1039 /**
1040  * Obtain a Function value from a Module by its name.
1041  *
1042  * The returned value corresponds to a llvm::Function value.
1043  *
1044  * @see llvm::Module::getFunction()
1045  */
1046 LLVMValueRef LLVMGetNamedFunction(LLVMModuleRef M, const char *Name);
1047 
1048 /**
1049  * Obtain an iterator to the first Function in a Module.
1050  *
1051  * @see llvm::Module::begin()
1052  */
1053 LLVMValueRef LLVMGetFirstFunction(LLVMModuleRef M);
1054 
1055 /**
1056  * Obtain an iterator to the last Function in a Module.
1057  *
1058  * @see llvm::Module::end()
1059  */
1060 LLVMValueRef LLVMGetLastFunction(LLVMModuleRef M);
1061 
1062 /**
1063  * Advance a Function iterator to the next Function.
1064  *
1065  * Returns NULL if the iterator was already at the end and there are no more
1066  * functions.
1067  */
1068 LLVMValueRef LLVMGetNextFunction(LLVMValueRef Fn);
1069 
1070 /**
1071  * Decrement a Function iterator to the previous Function.
1072  *
1073  * Returns NULL if the iterator was already at the beginning and there are
1074  * no previous functions.
1075  */
1076 LLVMValueRef LLVMGetPreviousFunction(LLVMValueRef Fn);
1077 
1078 /** Deprecated: Use LLVMSetModuleInlineAsm2 instead. */
1079 void LLVMSetModuleInlineAsm(LLVMModuleRef M, const char *Asm);
1080 
1081 /**
1082  * @}
1083  */
1084 
1085 /**
1086  * @defgroup LLVMCCoreType Types
1087  *
1088  * Types represent the type of a value.
1089  *
1090  * Types are associated with a context instance. The context internally
1091  * deduplicates types so there is only 1 instance of a specific type
1092  * alive at a time. In other words, a unique type is shared among all
1093  * consumers within a context.
1094  *
1095  * A Type in the C API corresponds to llvm::Type.
1096  *
1097  * Types have the following hierarchy:
1098  *
1099  *   types:
1100  *     integer type
1101  *     real type
1102  *     function type
1103  *     sequence types:
1104  *       array type
1105  *       pointer type
1106  *       vector type
1107  *     void type
1108  *     label type
1109  *     opaque type
1110  *
1111  * @{
1112  */
1113 
1114 /**
1115  * Obtain the enumerated type of a Type instance.
1116  *
1117  * @see llvm::Type:getTypeID()
1118  */
1119 LLVMTypeKind LLVMGetTypeKind(LLVMTypeRef Ty);
1120 
1121 /**
1122  * Whether the type has a known size.
1123  *
1124  * Things that don't have a size are abstract types, labels, and void.a
1125  *
1126  * @see llvm::Type::isSized()
1127  */
1128 LLVMBool LLVMTypeIsSized(LLVMTypeRef Ty);
1129 
1130 /**
1131  * Obtain the context to which this type instance is associated.
1132  *
1133  * @see llvm::Type::getContext()
1134  */
1135 LLVMContextRef LLVMGetTypeContext(LLVMTypeRef Ty);
1136 
1137 /**
1138  * Dump a representation of a type to stderr.
1139  *
1140  * @see llvm::Type::dump()
1141  */
1142 void LLVMDumpType(LLVMTypeRef Val);
1143 
1144 /**
1145  * Return a string representation of the type. Use
1146  * LLVMDisposeMessage to free the string.
1147  *
1148  * @see llvm::Type::print()
1149  */
1150 char *LLVMPrintTypeToString(LLVMTypeRef Val);
1151 
1152 /**
1153  * @defgroup LLVMCCoreTypeInt Integer Types
1154  *
1155  * Functions in this section operate on integer types.
1156  *
1157  * @{
1158  */
1159 
1160 /**
1161  * Obtain an integer type from a context with specified bit width.
1162  */
1163 LLVMTypeRef LLVMInt1TypeInContext(LLVMContextRef C);
1164 LLVMTypeRef LLVMInt8TypeInContext(LLVMContextRef C);
1165 LLVMTypeRef LLVMInt16TypeInContext(LLVMContextRef C);
1166 LLVMTypeRef LLVMInt32TypeInContext(LLVMContextRef C);
1167 LLVMTypeRef LLVMInt64TypeInContext(LLVMContextRef C);
1168 LLVMTypeRef LLVMInt128TypeInContext(LLVMContextRef C);
1169 LLVMTypeRef LLVMIntTypeInContext(LLVMContextRef C, unsigned NumBits);
1170 
1171 /**
1172  * Obtain an integer type from the global context with a specified bit
1173  * width.
1174  */
1175 LLVMTypeRef LLVMInt1Type(void);
1176 LLVMTypeRef LLVMInt8Type(void);
1177 LLVMTypeRef LLVMInt16Type(void);
1178 LLVMTypeRef LLVMInt32Type(void);
1179 LLVMTypeRef LLVMInt64Type(void);
1180 LLVMTypeRef LLVMInt128Type(void);
1181 LLVMTypeRef LLVMIntType(unsigned NumBits);
1182 unsigned LLVMGetIntTypeWidth(LLVMTypeRef IntegerTy);
1183 
1184 /**
1185  * @}
1186  */
1187 
1188 /**
1189  * @defgroup LLVMCCoreTypeFloat Floating Point Types
1190  *
1191  * @{
1192  */
1193 
1194 /**
1195  * Obtain a 16-bit floating point type from a context.
1196  */
1197 LLVMTypeRef LLVMHalfTypeInContext(LLVMContextRef C);
1198 
1199 /**
1200  * Obtain a 16-bit brain floating point type from a context.
1201  */
1202 LLVMTypeRef LLVMBFloatTypeInContext(LLVMContextRef C);
1203 
1204 /**
1205  * Obtain a 32-bit floating point type from a context.
1206  */
1207 LLVMTypeRef LLVMFloatTypeInContext(LLVMContextRef C);
1208 
1209 /**
1210  * Obtain a 64-bit floating point type from a context.
1211  */
1212 LLVMTypeRef LLVMDoubleTypeInContext(LLVMContextRef C);
1213 
1214 /**
1215  * Obtain a 80-bit floating point type (X87) from a context.
1216  */
1217 LLVMTypeRef LLVMX86FP80TypeInContext(LLVMContextRef C);
1218 
1219 /**
1220  * Obtain a 128-bit floating point type (112-bit mantissa) from a
1221  * context.
1222  */
1223 LLVMTypeRef LLVMFP128TypeInContext(LLVMContextRef C);
1224 
1225 /**
1226  * Obtain a 128-bit floating point type (two 64-bits) from a context.
1227  */
1228 LLVMTypeRef LLVMPPCFP128TypeInContext(LLVMContextRef C);
1229 
1230 /**
1231  * Obtain a floating point type from the global context.
1232  *
1233  * These map to the functions in this group of the same name.
1234  */
1235 LLVMTypeRef LLVMHalfType(void);
1236 LLVMTypeRef LLVMBFloatType(void);
1237 LLVMTypeRef LLVMFloatType(void);
1238 LLVMTypeRef LLVMDoubleType(void);
1239 LLVMTypeRef LLVMX86FP80Type(void);
1240 LLVMTypeRef LLVMFP128Type(void);
1241 LLVMTypeRef LLVMPPCFP128Type(void);
1242 
1243 /**
1244  * @}
1245  */
1246 
1247 /**
1248  * @defgroup LLVMCCoreTypeFunction Function Types
1249  *
1250  * @{
1251  */
1252 
1253 /**
1254  * Obtain a function type consisting of a specified signature.
1255  *
1256  * The function is defined as a tuple of a return Type, a list of
1257  * parameter types, and whether the function is variadic.
1258  */
1259 LLVMTypeRef LLVMFunctionType(LLVMTypeRef ReturnType,
1260                              LLVMTypeRef *ParamTypes, unsigned ParamCount,
1261                              LLVMBool IsVarArg);
1262 
1263 /**
1264  * Returns whether a function type is variadic.
1265  */
1266 LLVMBool LLVMIsFunctionVarArg(LLVMTypeRef FunctionTy);
1267 
1268 /**
1269  * Obtain the Type this function Type returns.
1270  */
1271 LLVMTypeRef LLVMGetReturnType(LLVMTypeRef FunctionTy);
1272 
1273 /**
1274  * Obtain the number of parameters this function accepts.
1275  */
1276 unsigned LLVMCountParamTypes(LLVMTypeRef FunctionTy);
1277 
1278 /**
1279  * Obtain the types of a function's parameters.
1280  *
1281  * The Dest parameter should point to a pre-allocated array of
1282  * LLVMTypeRef at least LLVMCountParamTypes() large. On return, the
1283  * first LLVMCountParamTypes() entries in the array will be populated
1284  * with LLVMTypeRef instances.
1285  *
1286  * @param FunctionTy The function type to operate on.
1287  * @param Dest Memory address of an array to be filled with result.
1288  */
1289 void LLVMGetParamTypes(LLVMTypeRef FunctionTy, LLVMTypeRef *Dest);
1290 
1291 /**
1292  * @}
1293  */
1294 
1295 /**
1296  * @defgroup LLVMCCoreTypeStruct Structure Types
1297  *
1298  * These functions relate to LLVMTypeRef instances.
1299  *
1300  * @see llvm::StructType
1301  *
1302  * @{
1303  */
1304 
1305 /**
1306  * Create a new structure type in a context.
1307  *
1308  * A structure is specified by a list of inner elements/types and
1309  * whether these can be packed together.
1310  *
1311  * @see llvm::StructType::create()
1312  */
1313 LLVMTypeRef LLVMStructTypeInContext(LLVMContextRef C, LLVMTypeRef *ElementTypes,
1314                                     unsigned ElementCount, LLVMBool Packed);
1315 
1316 /**
1317  * Create a new structure type in the global context.
1318  *
1319  * @see llvm::StructType::create()
1320  */
1321 LLVMTypeRef LLVMStructType(LLVMTypeRef *ElementTypes, unsigned ElementCount,
1322                            LLVMBool Packed);
1323 
1324 /**
1325  * Create an empty structure in a context having a specified name.
1326  *
1327  * @see llvm::StructType::create()
1328  */
1329 LLVMTypeRef LLVMStructCreateNamed(LLVMContextRef C, const char *Name);
1330 
1331 /**
1332  * Obtain the name of a structure.
1333  *
1334  * @see llvm::StructType::getName()
1335  */
1336 const char *LLVMGetStructName(LLVMTypeRef Ty);
1337 
1338 /**
1339  * Set the contents of a structure type.
1340  *
1341  * @see llvm::StructType::setBody()
1342  */
1343 void LLVMStructSetBody(LLVMTypeRef StructTy, LLVMTypeRef *ElementTypes,
1344                        unsigned ElementCount, LLVMBool Packed);
1345 
1346 /**
1347  * Get the number of elements defined inside the structure.
1348  *
1349  * @see llvm::StructType::getNumElements()
1350  */
1351 unsigned LLVMCountStructElementTypes(LLVMTypeRef StructTy);
1352 
1353 /**
1354  * Get the elements within a structure.
1355  *
1356  * The function is passed the address of a pre-allocated array of
1357  * LLVMTypeRef at least LLVMCountStructElementTypes() long. After
1358  * invocation, this array will be populated with the structure's
1359  * elements. The objects in the destination array will have a lifetime
1360  * of the structure type itself, which is the lifetime of the context it
1361  * is contained in.
1362  */
1363 void LLVMGetStructElementTypes(LLVMTypeRef StructTy, LLVMTypeRef *Dest);
1364 
1365 /**
1366  * Get the type of the element at a given index in the structure.
1367  *
1368  * @see llvm::StructType::getTypeAtIndex()
1369  */
1370 LLVMTypeRef LLVMStructGetTypeAtIndex(LLVMTypeRef StructTy, unsigned i);
1371 
1372 /**
1373  * Determine whether a structure is packed.
1374  *
1375  * @see llvm::StructType::isPacked()
1376  */
1377 LLVMBool LLVMIsPackedStruct(LLVMTypeRef StructTy);
1378 
1379 /**
1380  * Determine whether a structure is opaque.
1381  *
1382  * @see llvm::StructType::isOpaque()
1383  */
1384 LLVMBool LLVMIsOpaqueStruct(LLVMTypeRef StructTy);
1385 
1386 /**
1387  * Determine whether a structure is literal.
1388  *
1389  * @see llvm::StructType::isLiteral()
1390  */
1391 LLVMBool LLVMIsLiteralStruct(LLVMTypeRef StructTy);
1392 
1393 /**
1394  * @}
1395  */
1396 
1397 /**
1398  * @defgroup LLVMCCoreTypeSequential Sequential Types
1399  *
1400  * Sequential types represents "arrays" of types. This is a super class
1401  * for array, vector, and pointer types.
1402  *
1403  * @{
1404  */
1405 
1406 /**
1407  * Obtain the element type of an array or vector type.
1408  *
1409  * This currently also works for pointer types, but this usage is deprecated.
1410  *
1411  * @see llvm::SequentialType::getElementType()
1412  */
1413 LLVMTypeRef LLVMGetElementType(LLVMTypeRef Ty);
1414 
1415 /**
1416  * Returns type's subtypes
1417  *
1418  * @see llvm::Type::subtypes()
1419  */
1420 void LLVMGetSubtypes(LLVMTypeRef Tp, LLVMTypeRef *Arr);
1421 
1422 /**
1423  *  Return the number of types in the derived type.
1424  *
1425  * @see llvm::Type::getNumContainedTypes()
1426  */
1427 unsigned LLVMGetNumContainedTypes(LLVMTypeRef Tp);
1428 
1429 /**
1430  * Create a fixed size array type that refers to a specific type.
1431  *
1432  * The created type will exist in the context that its element type
1433  * exists in.
1434  *
1435  * @see llvm::ArrayType::get()
1436  */
1437 LLVMTypeRef LLVMArrayType(LLVMTypeRef ElementType, unsigned ElementCount);
1438 
1439 /**
1440  * Obtain the length of an array type.
1441  *
1442  * This only works on types that represent arrays.
1443  *
1444  * @see llvm::ArrayType::getNumElements()
1445  */
1446 unsigned LLVMGetArrayLength(LLVMTypeRef ArrayTy);
1447 
1448 /**
1449  * Create a pointer type that points to a defined type.
1450  *
1451  * The created type will exist in the context that its pointee type
1452  * exists in.
1453  *
1454  * @see llvm::PointerType::get()
1455  */
1456 LLVMTypeRef LLVMPointerType(LLVMTypeRef ElementType, unsigned AddressSpace);
1457 
1458 /**
1459  * Determine whether a pointer is opaque.
1460  *
1461  * True if this is an instance of an opaque PointerType.
1462  *
1463  * @see llvm::Type::isOpaquePointerTy()
1464  */
1465 LLVMBool LLVMPointerTypeIsOpaque(LLVMTypeRef Ty);
1466 
1467 /**
1468  * Create an opaque pointer type in a context.
1469  *
1470  * @see llvm::PointerType::get()
1471  */
1472 LLVMTypeRef LLVMPointerTypeInContext(LLVMContextRef C, unsigned AddressSpace);
1473 
1474 /**
1475  * Obtain the address space of a pointer type.
1476  *
1477  * This only works on types that represent pointers.
1478  *
1479  * @see llvm::PointerType::getAddressSpace()
1480  */
1481 unsigned LLVMGetPointerAddressSpace(LLVMTypeRef PointerTy);
1482 
1483 /**
1484  * Create a vector type that contains a defined type and has a specific
1485  * number of elements.
1486  *
1487  * The created type will exist in the context thats its element type
1488  * exists in.
1489  *
1490  * @see llvm::VectorType::get()
1491  */
1492 LLVMTypeRef LLVMVectorType(LLVMTypeRef ElementType, unsigned ElementCount);
1493 
1494 /**
1495  * Create a vector type that contains a defined type and has a scalable
1496  * number of elements.
1497  *
1498  * The created type will exist in the context thats its element type
1499  * exists in.
1500  *
1501  * @see llvm::ScalableVectorType::get()
1502  */
1503 LLVMTypeRef LLVMScalableVectorType(LLVMTypeRef ElementType,
1504                                    unsigned ElementCount);
1505 
1506 /**
1507  * Obtain the (possibly scalable) number of elements in a vector type.
1508  *
1509  * This only works on types that represent vectors (fixed or scalable).
1510  *
1511  * @see llvm::VectorType::getNumElements()
1512  */
1513 unsigned LLVMGetVectorSize(LLVMTypeRef VectorTy);
1514 
1515 /**
1516  * @}
1517  */
1518 
1519 /**
1520  * @defgroup LLVMCCoreTypeOther Other Types
1521  *
1522  * @{
1523  */
1524 
1525 /**
1526  * Create a void type in a context.
1527  */
1528 LLVMTypeRef LLVMVoidTypeInContext(LLVMContextRef C);
1529 
1530 /**
1531  * Create a label type in a context.
1532  */
1533 LLVMTypeRef LLVMLabelTypeInContext(LLVMContextRef C);
1534 
1535 /**
1536  * Create a X86 MMX type in a context.
1537  */
1538 LLVMTypeRef LLVMX86MMXTypeInContext(LLVMContextRef C);
1539 
1540 /**
1541  * Create a X86 AMX type in a context.
1542  */
1543 LLVMTypeRef LLVMX86AMXTypeInContext(LLVMContextRef C);
1544 
1545 /**
1546  * Create a token type in a context.
1547  */
1548 LLVMTypeRef LLVMTokenTypeInContext(LLVMContextRef C);
1549 
1550 /**
1551  * Create a metadata type in a context.
1552  */
1553 LLVMTypeRef LLVMMetadataTypeInContext(LLVMContextRef C);
1554 
1555 /**
1556  * These are similar to the above functions except they operate on the
1557  * global context.
1558  */
1559 LLVMTypeRef LLVMVoidType(void);
1560 LLVMTypeRef LLVMLabelType(void);
1561 LLVMTypeRef LLVMX86MMXType(void);
1562 LLVMTypeRef LLVMX86AMXType(void);
1563 
1564 /**
1565  * @}
1566  */
1567 
1568 /**
1569  * @}
1570  */
1571 
1572 /**
1573  * @defgroup LLVMCCoreValues Values
1574  *
1575  * The bulk of LLVM's object model consists of values, which comprise a very
1576  * rich type hierarchy.
1577  *
1578  * LLVMValueRef essentially represents llvm::Value. There is a rich
1579  * hierarchy of classes within this type. Depending on the instance
1580  * obtained, not all APIs are available.
1581  *
1582  * Callers can determine the type of an LLVMValueRef by calling the
1583  * LLVMIsA* family of functions (e.g. LLVMIsAArgument()). These
1584  * functions are defined by a macro, so it isn't obvious which are
1585  * available by looking at the Doxygen source code. Instead, look at the
1586  * source definition of LLVM_FOR_EACH_VALUE_SUBCLASS and note the list
1587  * of value names given. These value names also correspond to classes in
1588  * the llvm::Value hierarchy.
1589  *
1590  * @{
1591  */
1592 
1593 #define LLVM_FOR_EACH_VALUE_SUBCLASS(macro) \
1594   macro(Argument)                           \
1595   macro(BasicBlock)                         \
1596   macro(InlineAsm)                          \
1597   macro(User)                               \
1598     macro(Constant)                         \
1599       macro(BlockAddress)                   \
1600       macro(ConstantAggregateZero)          \
1601       macro(ConstantArray)                  \
1602       macro(ConstantDataSequential)         \
1603         macro(ConstantDataArray)            \
1604         macro(ConstantDataVector)           \
1605       macro(ConstantExpr)                   \
1606       macro(ConstantFP)                     \
1607       macro(ConstantInt)                    \
1608       macro(ConstantPointerNull)            \
1609       macro(ConstantStruct)                 \
1610       macro(ConstantTokenNone)              \
1611       macro(ConstantVector)                 \
1612       macro(GlobalValue)                    \
1613         macro(GlobalAlias)                  \
1614         macro(GlobalObject)                 \
1615           macro(Function)                   \
1616           macro(GlobalVariable)             \
1617           macro(GlobalIFunc)                \
1618       macro(UndefValue)                     \
1619       macro(PoisonValue)                    \
1620     macro(Instruction)                      \
1621       macro(UnaryOperator)                  \
1622       macro(BinaryOperator)                 \
1623       macro(CallInst)                       \
1624         macro(IntrinsicInst)                \
1625           macro(DbgInfoIntrinsic)           \
1626             macro(DbgVariableIntrinsic)     \
1627               macro(DbgDeclareInst)         \
1628             macro(DbgLabelInst)             \
1629           macro(MemIntrinsic)               \
1630             macro(MemCpyInst)               \
1631             macro(MemMoveInst)              \
1632             macro(MemSetInst)               \
1633       macro(CmpInst)                        \
1634         macro(FCmpInst)                     \
1635         macro(ICmpInst)                     \
1636       macro(ExtractElementInst)             \
1637       macro(GetElementPtrInst)              \
1638       macro(InsertElementInst)              \
1639       macro(InsertValueInst)                \
1640       macro(LandingPadInst)                 \
1641       macro(PHINode)                        \
1642       macro(SelectInst)                     \
1643       macro(ShuffleVectorInst)              \
1644       macro(StoreInst)                      \
1645       macro(BranchInst)                     \
1646       macro(IndirectBrInst)                 \
1647       macro(InvokeInst)                     \
1648       macro(ReturnInst)                     \
1649       macro(SwitchInst)                     \
1650       macro(UnreachableInst)                \
1651       macro(ResumeInst)                     \
1652       macro(CleanupReturnInst)              \
1653       macro(CatchReturnInst)                \
1654       macro(CatchSwitchInst)                \
1655       macro(CallBrInst)                     \
1656       macro(FuncletPadInst)                 \
1657         macro(CatchPadInst)                 \
1658         macro(CleanupPadInst)               \
1659       macro(UnaryInstruction)               \
1660         macro(AllocaInst)                   \
1661         macro(CastInst)                     \
1662           macro(AddrSpaceCastInst)          \
1663           macro(BitCastInst)                \
1664           macro(FPExtInst)                  \
1665           macro(FPToSIInst)                 \
1666           macro(FPToUIInst)                 \
1667           macro(FPTruncInst)                \
1668           macro(IntToPtrInst)               \
1669           macro(PtrToIntInst)               \
1670           macro(SExtInst)                   \
1671           macro(SIToFPInst)                 \
1672           macro(TruncInst)                  \
1673           macro(UIToFPInst)                 \
1674           macro(ZExtInst)                   \
1675         macro(ExtractValueInst)             \
1676         macro(LoadInst)                     \
1677         macro(VAArgInst)                    \
1678         macro(FreezeInst)                   \
1679       macro(AtomicCmpXchgInst)              \
1680       macro(AtomicRMWInst)                  \
1681       macro(FenceInst)
1682 
1683 /**
1684  * @defgroup LLVMCCoreValueGeneral General APIs
1685  *
1686  * Functions in this section work on all LLVMValueRef instances,
1687  * regardless of their sub-type. They correspond to functions available
1688  * on llvm::Value.
1689  *
1690  * @{
1691  */
1692 
1693 /**
1694  * Obtain the type of a value.
1695  *
1696  * @see llvm::Value::getType()
1697  */
1698 LLVMTypeRef LLVMTypeOf(LLVMValueRef Val);
1699 
1700 /**
1701  * Obtain the enumerated type of a Value instance.
1702  *
1703  * @see llvm::Value::getValueID()
1704  */
1705 LLVMValueKind LLVMGetValueKind(LLVMValueRef Val);
1706 
1707 /**
1708  * Obtain the string name of a value.
1709  *
1710  * @see llvm::Value::getName()
1711  */
1712 const char *LLVMGetValueName2(LLVMValueRef Val, size_t *Length);
1713 
1714 /**
1715  * Set the string name of a value.
1716  *
1717  * @see llvm::Value::setName()
1718  */
1719 void LLVMSetValueName2(LLVMValueRef Val, const char *Name, size_t NameLen);
1720 
1721 /**
1722  * Dump a representation of a value to stderr.
1723  *
1724  * @see llvm::Value::dump()
1725  */
1726 void LLVMDumpValue(LLVMValueRef Val);
1727 
1728 /**
1729  * Return a string representation of the value. Use
1730  * LLVMDisposeMessage to free the string.
1731  *
1732  * @see llvm::Value::print()
1733  */
1734 char *LLVMPrintValueToString(LLVMValueRef Val);
1735 
1736 /**
1737  * Replace all uses of a value with another one.
1738  *
1739  * @see llvm::Value::replaceAllUsesWith()
1740  */
1741 void LLVMReplaceAllUsesWith(LLVMValueRef OldVal, LLVMValueRef NewVal);
1742 
1743 /**
1744  * Determine whether the specified value instance is constant.
1745  */
1746 LLVMBool LLVMIsConstant(LLVMValueRef Val);
1747 
1748 /**
1749  * Determine whether a value instance is undefined.
1750  */
1751 LLVMBool LLVMIsUndef(LLVMValueRef Val);
1752 
1753 /**
1754  * Determine whether a value instance is poisonous.
1755  */
1756 LLVMBool LLVMIsPoison(LLVMValueRef Val);
1757 
1758 /**
1759  * Convert value instances between types.
1760  *
1761  * Internally, an LLVMValueRef is "pinned" to a specific type. This
1762  * series of functions allows you to cast an instance to a specific
1763  * type.
1764  *
1765  * If the cast is not valid for the specified type, NULL is returned.
1766  *
1767  * @see llvm::dyn_cast_or_null<>
1768  */
1769 #define LLVM_DECLARE_VALUE_CAST(name) \
1770   LLVMValueRef LLVMIsA##name(LLVMValueRef Val);
1771 LLVM_FOR_EACH_VALUE_SUBCLASS(LLVM_DECLARE_VALUE_CAST)
1772 
1773 LLVMValueRef LLVMIsAMDNode(LLVMValueRef Val);
1774 LLVMValueRef LLVMIsAMDString(LLVMValueRef Val);
1775 
1776 /** Deprecated: Use LLVMGetValueName2 instead. */
1777 const char *LLVMGetValueName(LLVMValueRef Val);
1778 /** Deprecated: Use LLVMSetValueName2 instead. */
1779 void LLVMSetValueName(LLVMValueRef Val, const char *Name);
1780 
1781 /**
1782  * @}
1783  */
1784 
1785 /**
1786  * @defgroup LLVMCCoreValueUses Usage
1787  *
1788  * This module defines functions that allow you to inspect the uses of a
1789  * LLVMValueRef.
1790  *
1791  * It is possible to obtain an LLVMUseRef for any LLVMValueRef instance.
1792  * Each LLVMUseRef (which corresponds to a llvm::Use instance) holds a
1793  * llvm::User and llvm::Value.
1794  *
1795  * @{
1796  */
1797 
1798 /**
1799  * Obtain the first use of a value.
1800  *
1801  * Uses are obtained in an iterator fashion. First, call this function
1802  * to obtain a reference to the first use. Then, call LLVMGetNextUse()
1803  * on that instance and all subsequently obtained instances until
1804  * LLVMGetNextUse() returns NULL.
1805  *
1806  * @see llvm::Value::use_begin()
1807  */
1808 LLVMUseRef LLVMGetFirstUse(LLVMValueRef Val);
1809 
1810 /**
1811  * Obtain the next use of a value.
1812  *
1813  * This effectively advances the iterator. It returns NULL if you are on
1814  * the final use and no more are available.
1815  */
1816 LLVMUseRef LLVMGetNextUse(LLVMUseRef U);
1817 
1818 /**
1819  * Obtain the user value for a user.
1820  *
1821  * The returned value corresponds to a llvm::User type.
1822  *
1823  * @see llvm::Use::getUser()
1824  */
1825 LLVMValueRef LLVMGetUser(LLVMUseRef U);
1826 
1827 /**
1828  * Obtain the value this use corresponds to.
1829  *
1830  * @see llvm::Use::get().
1831  */
1832 LLVMValueRef LLVMGetUsedValue(LLVMUseRef U);
1833 
1834 /**
1835  * @}
1836  */
1837 
1838 /**
1839  * @defgroup LLVMCCoreValueUser User value
1840  *
1841  * Function in this group pertain to LLVMValueRef instances that descent
1842  * from llvm::User. This includes constants, instructions, and
1843  * operators.
1844  *
1845  * @{
1846  */
1847 
1848 /**
1849  * Obtain an operand at a specific index in a llvm::User value.
1850  *
1851  * @see llvm::User::getOperand()
1852  */
1853 LLVMValueRef LLVMGetOperand(LLVMValueRef Val, unsigned Index);
1854 
1855 /**
1856  * Obtain the use of an operand at a specific index in a llvm::User value.
1857  *
1858  * @see llvm::User::getOperandUse()
1859  */
1860 LLVMUseRef LLVMGetOperandUse(LLVMValueRef Val, unsigned Index);
1861 
1862 /**
1863  * Set an operand at a specific index in a llvm::User value.
1864  *
1865  * @see llvm::User::setOperand()
1866  */
1867 void LLVMSetOperand(LLVMValueRef User, unsigned Index, LLVMValueRef Val);
1868 
1869 /**
1870  * Obtain the number of operands in a llvm::User value.
1871  *
1872  * @see llvm::User::getNumOperands()
1873  */
1874 int LLVMGetNumOperands(LLVMValueRef Val);
1875 
1876 /**
1877  * @}
1878  */
1879 
1880 /**
1881  * @defgroup LLVMCCoreValueConstant Constants
1882  *
1883  * This section contains APIs for interacting with LLVMValueRef that
1884  * correspond to llvm::Constant instances.
1885  *
1886  * These functions will work for any LLVMValueRef in the llvm::Constant
1887  * class hierarchy.
1888  *
1889  * @{
1890  */
1891 
1892 /**
1893  * Obtain a constant value referring to the null instance of a type.
1894  *
1895  * @see llvm::Constant::getNullValue()
1896  */
1897 LLVMValueRef LLVMConstNull(LLVMTypeRef Ty); /* all zeroes */
1898 
1899 /**
1900  * Obtain a constant value referring to the instance of a type
1901  * consisting of all ones.
1902  *
1903  * This is only valid for integer types.
1904  *
1905  * @see llvm::Constant::getAllOnesValue()
1906  */
1907 LLVMValueRef LLVMConstAllOnes(LLVMTypeRef Ty);
1908 
1909 /**
1910  * Obtain a constant value referring to an undefined value of a type.
1911  *
1912  * @see llvm::UndefValue::get()
1913  */
1914 LLVMValueRef LLVMGetUndef(LLVMTypeRef Ty);
1915 
1916 /**
1917  * Obtain a constant value referring to a poison value of a type.
1918  *
1919  * @see llvm::PoisonValue::get()
1920  */
1921 LLVMValueRef LLVMGetPoison(LLVMTypeRef Ty);
1922 
1923 /**
1924  * Determine whether a value instance is null.
1925  *
1926  * @see llvm::Constant::isNullValue()
1927  */
1928 LLVMBool LLVMIsNull(LLVMValueRef Val);
1929 
1930 /**
1931  * Obtain a constant that is a constant pointer pointing to NULL for a
1932  * specified type.
1933  */
1934 LLVMValueRef LLVMConstPointerNull(LLVMTypeRef Ty);
1935 
1936 /**
1937  * @defgroup LLVMCCoreValueConstantScalar Scalar constants
1938  *
1939  * Functions in this group model LLVMValueRef instances that correspond
1940  * to constants referring to scalar types.
1941  *
1942  * For integer types, the LLVMTypeRef parameter should correspond to a
1943  * llvm::IntegerType instance and the returned LLVMValueRef will
1944  * correspond to a llvm::ConstantInt.
1945  *
1946  * For floating point types, the LLVMTypeRef returned corresponds to a
1947  * llvm::ConstantFP.
1948  *
1949  * @{
1950  */
1951 
1952 /**
1953  * Obtain a constant value for an integer type.
1954  *
1955  * The returned value corresponds to a llvm::ConstantInt.
1956  *
1957  * @see llvm::ConstantInt::get()
1958  *
1959  * @param IntTy Integer type to obtain value of.
1960  * @param N The value the returned instance should refer to.
1961  * @param SignExtend Whether to sign extend the produced value.
1962  */
1963 LLVMValueRef LLVMConstInt(LLVMTypeRef IntTy, unsigned long long N,
1964                           LLVMBool SignExtend);
1965 
1966 /**
1967  * Obtain a constant value for an integer of arbitrary precision.
1968  *
1969  * @see llvm::ConstantInt::get()
1970  */
1971 LLVMValueRef LLVMConstIntOfArbitraryPrecision(LLVMTypeRef IntTy,
1972                                               unsigned NumWords,
1973                                               const uint64_t Words[]);
1974 
1975 /**
1976  * Obtain a constant value for an integer parsed from a string.
1977  *
1978  * A similar API, LLVMConstIntOfStringAndSize is also available. If the
1979  * string's length is available, it is preferred to call that function
1980  * instead.
1981  *
1982  * @see llvm::ConstantInt::get()
1983  */
1984 LLVMValueRef LLVMConstIntOfString(LLVMTypeRef IntTy, const char *Text,
1985                                   uint8_t Radix);
1986 
1987 /**
1988  * Obtain a constant value for an integer parsed from a string with
1989  * specified length.
1990  *
1991  * @see llvm::ConstantInt::get()
1992  */
1993 LLVMValueRef LLVMConstIntOfStringAndSize(LLVMTypeRef IntTy, const char *Text,
1994                                          unsigned SLen, uint8_t Radix);
1995 
1996 /**
1997  * Obtain a constant value referring to a double floating point value.
1998  */
1999 LLVMValueRef LLVMConstReal(LLVMTypeRef RealTy, double N);
2000 
2001 /**
2002  * Obtain a constant for a floating point value parsed from a string.
2003  *
2004  * A similar API, LLVMConstRealOfStringAndSize is also available. It
2005  * should be used if the input string's length is known.
2006  */
2007 LLVMValueRef LLVMConstRealOfString(LLVMTypeRef RealTy, const char *Text);
2008 
2009 /**
2010  * Obtain a constant for a floating point value parsed from a string.
2011  */
2012 LLVMValueRef LLVMConstRealOfStringAndSize(LLVMTypeRef RealTy, const char *Text,
2013                                           unsigned SLen);
2014 
2015 /**
2016  * Obtain the zero extended value for an integer constant value.
2017  *
2018  * @see llvm::ConstantInt::getZExtValue()
2019  */
2020 unsigned long long LLVMConstIntGetZExtValue(LLVMValueRef ConstantVal);
2021 
2022 /**
2023  * Obtain the sign extended value for an integer constant value.
2024  *
2025  * @see llvm::ConstantInt::getSExtValue()
2026  */
2027 long long LLVMConstIntGetSExtValue(LLVMValueRef ConstantVal);
2028 
2029 /**
2030  * Obtain the double value for an floating point constant value.
2031  * losesInfo indicates if some precision was lost in the conversion.
2032  *
2033  * @see llvm::ConstantFP::getDoubleValue
2034  */
2035 double LLVMConstRealGetDouble(LLVMValueRef ConstantVal, LLVMBool *losesInfo);
2036 
2037 /**
2038  * @}
2039  */
2040 
2041 /**
2042  * @defgroup LLVMCCoreValueConstantComposite Composite Constants
2043  *
2044  * Functions in this group operate on composite constants.
2045  *
2046  * @{
2047  */
2048 
2049 /**
2050  * Create a ConstantDataSequential and initialize it with a string.
2051  *
2052  * @see llvm::ConstantDataArray::getString()
2053  */
2054 LLVMValueRef LLVMConstStringInContext(LLVMContextRef C, const char *Str,
2055                                       unsigned Length, LLVMBool DontNullTerminate);
2056 
2057 /**
2058  * Create a ConstantDataSequential with string content in the global context.
2059  *
2060  * This is the same as LLVMConstStringInContext except it operates on the
2061  * global context.
2062  *
2063  * @see LLVMConstStringInContext()
2064  * @see llvm::ConstantDataArray::getString()
2065  */
2066 LLVMValueRef LLVMConstString(const char *Str, unsigned Length,
2067                              LLVMBool DontNullTerminate);
2068 
2069 /**
2070  * Returns true if the specified constant is an array of i8.
2071  *
2072  * @see ConstantDataSequential::getAsString()
2073  */
2074 LLVMBool LLVMIsConstantString(LLVMValueRef c);
2075 
2076 /**
2077  * Get the given constant data sequential as a string.
2078  *
2079  * @see ConstantDataSequential::getAsString()
2080  */
2081 const char *LLVMGetAsString(LLVMValueRef c, size_t *Length);
2082 
2083 /**
2084  * Create an anonymous ConstantStruct with the specified values.
2085  *
2086  * @see llvm::ConstantStruct::getAnon()
2087  */
2088 LLVMValueRef LLVMConstStructInContext(LLVMContextRef C,
2089                                       LLVMValueRef *ConstantVals,
2090                                       unsigned Count, LLVMBool Packed);
2091 
2092 /**
2093  * Create a ConstantStruct in the global Context.
2094  *
2095  * This is the same as LLVMConstStructInContext except it operates on the
2096  * global Context.
2097  *
2098  * @see LLVMConstStructInContext()
2099  */
2100 LLVMValueRef LLVMConstStruct(LLVMValueRef *ConstantVals, unsigned Count,
2101                              LLVMBool Packed);
2102 
2103 /**
2104  * Create a ConstantArray from values.
2105  *
2106  * @see llvm::ConstantArray::get()
2107  */
2108 LLVMValueRef LLVMConstArray(LLVMTypeRef ElementTy,
2109                             LLVMValueRef *ConstantVals, unsigned Length);
2110 
2111 /**
2112  * Create a non-anonymous ConstantStruct from values.
2113  *
2114  * @see llvm::ConstantStruct::get()
2115  */
2116 LLVMValueRef LLVMConstNamedStruct(LLVMTypeRef StructTy,
2117                                   LLVMValueRef *ConstantVals,
2118                                   unsigned Count);
2119 
2120 /**
2121  * Get element of a constant aggregate (struct, array or vector) at the
2122  * specified index. Returns null if the index is out of range, or it's not
2123  * possible to determine the element (e.g., because the constant is a
2124  * constant expression.)
2125  *
2126  * @see llvm::Constant::getAggregateElement()
2127  */
2128 LLVMValueRef LLVMGetAggregateElement(LLVMValueRef C, unsigned Idx);
2129 
2130 /**
2131  * Get an element at specified index as a constant.
2132  *
2133  * @see ConstantDataSequential::getElementAsConstant()
2134  */
2135 LLVM_ATTRIBUTE_C_DEPRECATED(
2136     LLVMValueRef LLVMGetElementAsConstant(LLVMValueRef C, unsigned idx),
2137     "Use LLVMGetAggregateElement instead");
2138 
2139 /**
2140  * Create a ConstantVector from values.
2141  *
2142  * @see llvm::ConstantVector::get()
2143  */
2144 LLVMValueRef LLVMConstVector(LLVMValueRef *ScalarConstantVals, unsigned Size);
2145 
2146 /**
2147  * @}
2148  */
2149 
2150 /**
2151  * @defgroup LLVMCCoreValueConstantExpressions Constant Expressions
2152  *
2153  * Functions in this group correspond to APIs on llvm::ConstantExpr.
2154  *
2155  * @see llvm::ConstantExpr.
2156  *
2157  * @{
2158  */
2159 LLVMOpcode LLVMGetConstOpcode(LLVMValueRef ConstantVal);
2160 LLVMValueRef LLVMAlignOf(LLVMTypeRef Ty);
2161 LLVMValueRef LLVMSizeOf(LLVMTypeRef Ty);
2162 LLVMValueRef LLVMConstNeg(LLVMValueRef ConstantVal);
2163 LLVMValueRef LLVMConstNSWNeg(LLVMValueRef ConstantVal);
2164 LLVMValueRef LLVMConstNUWNeg(LLVMValueRef ConstantVal);
2165 LLVMValueRef LLVMConstFNeg(LLVMValueRef ConstantVal);
2166 LLVMValueRef LLVMConstNot(LLVMValueRef ConstantVal);
2167 LLVMValueRef LLVMConstAdd(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2168 LLVMValueRef LLVMConstNSWAdd(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2169 LLVMValueRef LLVMConstNUWAdd(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2170 LLVMValueRef LLVMConstFAdd(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2171 LLVMValueRef LLVMConstSub(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2172 LLVMValueRef LLVMConstNSWSub(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2173 LLVMValueRef LLVMConstNUWSub(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2174 LLVMValueRef LLVMConstFSub(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2175 LLVMValueRef LLVMConstMul(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2176 LLVMValueRef LLVMConstNSWMul(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2177 LLVMValueRef LLVMConstNUWMul(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2178 LLVMValueRef LLVMConstFMul(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2179 LLVMValueRef LLVMConstFDiv(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2180 LLVMValueRef LLVMConstFRem(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2181 LLVMValueRef LLVMConstAnd(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2182 LLVMValueRef LLVMConstOr(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2183 LLVMValueRef LLVMConstXor(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2184 LLVMValueRef LLVMConstICmp(LLVMIntPredicate Predicate,
2185                            LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2186 LLVMValueRef LLVMConstFCmp(LLVMRealPredicate Predicate,
2187                            LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2188 LLVMValueRef LLVMConstShl(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2189 LLVMValueRef LLVMConstLShr(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2190 LLVMValueRef LLVMConstAShr(LLVMValueRef LHSConstant, LLVMValueRef RHSConstant);
2191 LLVM_ATTRIBUTE_C_DEPRECATED(
2192     LLVMValueRef LLVMConstGEP(LLVMValueRef ConstantVal,
2193                               LLVMValueRef *ConstantIndices,
2194                               unsigned NumIndices),
2195     "Use LLVMConstGEP2 instead to support opaque pointers");
2196 LLVMValueRef LLVMConstGEP2(LLVMTypeRef Ty, LLVMValueRef ConstantVal,
2197                            LLVMValueRef *ConstantIndices, unsigned NumIndices);
2198 LLVM_ATTRIBUTE_C_DEPRECATED(
2199     LLVMValueRef LLVMConstInBoundsGEP(LLVMValueRef ConstantVal,
2200                                       LLVMValueRef *ConstantIndices,
2201                                       unsigned NumIndices),
2202     "Use LLVMConstInBoundsGEP2 instead to support opaque pointers");
2203 LLVMValueRef LLVMConstInBoundsGEP2(LLVMTypeRef Ty, LLVMValueRef ConstantVal,
2204                                    LLVMValueRef *ConstantIndices,
2205                                    unsigned NumIndices);
2206 LLVMValueRef LLVMConstTrunc(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2207 LLVMValueRef LLVMConstSExt(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2208 LLVMValueRef LLVMConstZExt(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2209 LLVMValueRef LLVMConstFPTrunc(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2210 LLVMValueRef LLVMConstFPExt(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2211 LLVMValueRef LLVMConstUIToFP(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2212 LLVMValueRef LLVMConstSIToFP(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2213 LLVMValueRef LLVMConstFPToUI(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2214 LLVMValueRef LLVMConstFPToSI(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2215 LLVMValueRef LLVMConstPtrToInt(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2216 LLVMValueRef LLVMConstIntToPtr(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2217 LLVMValueRef LLVMConstBitCast(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2218 LLVMValueRef LLVMConstAddrSpaceCast(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2219 LLVMValueRef LLVMConstZExtOrBitCast(LLVMValueRef ConstantVal,
2220                                     LLVMTypeRef ToType);
2221 LLVMValueRef LLVMConstSExtOrBitCast(LLVMValueRef ConstantVal,
2222                                     LLVMTypeRef ToType);
2223 LLVMValueRef LLVMConstTruncOrBitCast(LLVMValueRef ConstantVal,
2224                                      LLVMTypeRef ToType);
2225 LLVMValueRef LLVMConstPointerCast(LLVMValueRef ConstantVal,
2226                                   LLVMTypeRef ToType);
2227 LLVMValueRef LLVMConstIntCast(LLVMValueRef ConstantVal, LLVMTypeRef ToType,
2228                               LLVMBool isSigned);
2229 LLVMValueRef LLVMConstFPCast(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
2230 LLVMValueRef LLVMConstSelect(LLVMValueRef ConstantCondition,
2231                              LLVMValueRef ConstantIfTrue,
2232                              LLVMValueRef ConstantIfFalse);
2233 LLVMValueRef LLVMConstExtractElement(LLVMValueRef VectorConstant,
2234                                      LLVMValueRef IndexConstant);
2235 LLVMValueRef LLVMConstInsertElement(LLVMValueRef VectorConstant,
2236                                     LLVMValueRef ElementValueConstant,
2237                                     LLVMValueRef IndexConstant);
2238 LLVMValueRef LLVMConstShuffleVector(LLVMValueRef VectorAConstant,
2239                                     LLVMValueRef VectorBConstant,
2240                                     LLVMValueRef MaskConstant);
2241 LLVMValueRef LLVMBlockAddress(LLVMValueRef F, LLVMBasicBlockRef BB);
2242 
2243 /** Deprecated: Use LLVMGetInlineAsm instead. */
2244 LLVMValueRef LLVMConstInlineAsm(LLVMTypeRef Ty,
2245                                 const char *AsmString, const char *Constraints,
2246                                 LLVMBool HasSideEffects, LLVMBool IsAlignStack);
2247 
2248 /**
2249  * @}
2250  */
2251 
2252 /**
2253  * @defgroup LLVMCCoreValueConstantGlobals Global Values
2254  *
2255  * This group contains functions that operate on global values. Functions in
2256  * this group relate to functions in the llvm::GlobalValue class tree.
2257  *
2258  * @see llvm::GlobalValue
2259  *
2260  * @{
2261  */
2262 
2263 LLVMModuleRef LLVMGetGlobalParent(LLVMValueRef Global);
2264 LLVMBool LLVMIsDeclaration(LLVMValueRef Global);
2265 LLVMLinkage LLVMGetLinkage(LLVMValueRef Global);
2266 void LLVMSetLinkage(LLVMValueRef Global, LLVMLinkage Linkage);
2267 const char *LLVMGetSection(LLVMValueRef Global);
2268 void LLVMSetSection(LLVMValueRef Global, const char *Section);
2269 LLVMVisibility LLVMGetVisibility(LLVMValueRef Global);
2270 void LLVMSetVisibility(LLVMValueRef Global, LLVMVisibility Viz);
2271 LLVMDLLStorageClass LLVMGetDLLStorageClass(LLVMValueRef Global);
2272 void LLVMSetDLLStorageClass(LLVMValueRef Global, LLVMDLLStorageClass Class);
2273 LLVMUnnamedAddr LLVMGetUnnamedAddress(LLVMValueRef Global);
2274 void LLVMSetUnnamedAddress(LLVMValueRef Global, LLVMUnnamedAddr UnnamedAddr);
2275 
2276 /**
2277  * Returns the "value type" of a global value.  This differs from the formal
2278  * type of a global value which is always a pointer type.
2279  *
2280  * @see llvm::GlobalValue::getValueType()
2281  */
2282 LLVMTypeRef LLVMGlobalGetValueType(LLVMValueRef Global);
2283 
2284 /** Deprecated: Use LLVMGetUnnamedAddress instead. */
2285 LLVMBool LLVMHasUnnamedAddr(LLVMValueRef Global);
2286 /** Deprecated: Use LLVMSetUnnamedAddress instead. */
2287 void LLVMSetUnnamedAddr(LLVMValueRef Global, LLVMBool HasUnnamedAddr);
2288 
2289 /**
2290  * @defgroup LLVMCCoreValueWithAlignment Values with alignment
2291  *
2292  * Functions in this group only apply to values with alignment, i.e.
2293  * global variables, load and store instructions.
2294  */
2295 
2296 /**
2297  * Obtain the preferred alignment of the value.
2298  * @see llvm::AllocaInst::getAlignment()
2299  * @see llvm::LoadInst::getAlignment()
2300  * @see llvm::StoreInst::getAlignment()
2301  * @see llvm::AtomicRMWInst::setAlignment()
2302  * @see llvm::AtomicCmpXchgInst::setAlignment()
2303  * @see llvm::GlobalValue::getAlignment()
2304  */
2305 unsigned LLVMGetAlignment(LLVMValueRef V);
2306 
2307 /**
2308  * Set the preferred alignment of the value.
2309  * @see llvm::AllocaInst::setAlignment()
2310  * @see llvm::LoadInst::setAlignment()
2311  * @see llvm::StoreInst::setAlignment()
2312  * @see llvm::AtomicRMWInst::setAlignment()
2313  * @see llvm::AtomicCmpXchgInst::setAlignment()
2314  * @see llvm::GlobalValue::setAlignment()
2315  */
2316 void LLVMSetAlignment(LLVMValueRef V, unsigned Bytes);
2317 
2318 /**
2319  * Sets a metadata attachment, erasing the existing metadata attachment if
2320  * it already exists for the given kind.
2321  *
2322  * @see llvm::GlobalObject::setMetadata()
2323  */
2324 void LLVMGlobalSetMetadata(LLVMValueRef Global, unsigned Kind,
2325                            LLVMMetadataRef MD);
2326 
2327 /**
2328  * Erases a metadata attachment of the given kind if it exists.
2329  *
2330  * @see llvm::GlobalObject::eraseMetadata()
2331  */
2332 void LLVMGlobalEraseMetadata(LLVMValueRef Global, unsigned Kind);
2333 
2334 /**
2335  * Removes all metadata attachments from this value.
2336  *
2337  * @see llvm::GlobalObject::clearMetadata()
2338  */
2339 void LLVMGlobalClearMetadata(LLVMValueRef Global);
2340 
2341 /**
2342  * Retrieves an array of metadata entries representing the metadata attached to
2343  * this value. The caller is responsible for freeing this array by calling
2344  * \c LLVMDisposeValueMetadataEntries.
2345  *
2346  * @see llvm::GlobalObject::getAllMetadata()
2347  */
2348 LLVMValueMetadataEntry *LLVMGlobalCopyAllMetadata(LLVMValueRef Value,
2349                                                   size_t *NumEntries);
2350 
2351 /**
2352  * Destroys value metadata entries.
2353  */
2354 void LLVMDisposeValueMetadataEntries(LLVMValueMetadataEntry *Entries);
2355 
2356 /**
2357  * Returns the kind of a value metadata entry at a specific index.
2358  */
2359 unsigned LLVMValueMetadataEntriesGetKind(LLVMValueMetadataEntry *Entries,
2360                                          unsigned Index);
2361 
2362 /**
2363  * Returns the underlying metadata node of a value metadata entry at a
2364  * specific index.
2365  */
2366 LLVMMetadataRef
2367 LLVMValueMetadataEntriesGetMetadata(LLVMValueMetadataEntry *Entries,
2368                                     unsigned Index);
2369 
2370 /**
2371  * @}
2372  */
2373 
2374 /**
2375  * @defgroup LLVMCoreValueConstantGlobalVariable Global Variables
2376  *
2377  * This group contains functions that operate on global variable values.
2378  *
2379  * @see llvm::GlobalVariable
2380  *
2381  * @{
2382  */
2383 LLVMValueRef LLVMAddGlobal(LLVMModuleRef M, LLVMTypeRef Ty, const char *Name);
2384 LLVMValueRef LLVMAddGlobalInAddressSpace(LLVMModuleRef M, LLVMTypeRef Ty,
2385                                          const char *Name,
2386                                          unsigned AddressSpace);
2387 LLVMValueRef LLVMGetNamedGlobal(LLVMModuleRef M, const char *Name);
2388 LLVMValueRef LLVMGetFirstGlobal(LLVMModuleRef M);
2389 LLVMValueRef LLVMGetLastGlobal(LLVMModuleRef M);
2390 LLVMValueRef LLVMGetNextGlobal(LLVMValueRef GlobalVar);
2391 LLVMValueRef LLVMGetPreviousGlobal(LLVMValueRef GlobalVar);
2392 void LLVMDeleteGlobal(LLVMValueRef GlobalVar);
2393 LLVMValueRef LLVMGetInitializer(LLVMValueRef GlobalVar);
2394 void LLVMSetInitializer(LLVMValueRef GlobalVar, LLVMValueRef ConstantVal);
2395 LLVMBool LLVMIsThreadLocal(LLVMValueRef GlobalVar);
2396 void LLVMSetThreadLocal(LLVMValueRef GlobalVar, LLVMBool IsThreadLocal);
2397 LLVMBool LLVMIsGlobalConstant(LLVMValueRef GlobalVar);
2398 void LLVMSetGlobalConstant(LLVMValueRef GlobalVar, LLVMBool IsConstant);
2399 LLVMThreadLocalMode LLVMGetThreadLocalMode(LLVMValueRef GlobalVar);
2400 void LLVMSetThreadLocalMode(LLVMValueRef GlobalVar, LLVMThreadLocalMode Mode);
2401 LLVMBool LLVMIsExternallyInitialized(LLVMValueRef GlobalVar);
2402 void LLVMSetExternallyInitialized(LLVMValueRef GlobalVar, LLVMBool IsExtInit);
2403 
2404 /**
2405  * @}
2406  */
2407 
2408 /**
2409  * @defgroup LLVMCoreValueConstantGlobalAlias Global Aliases
2410  *
2411  * This group contains function that operate on global alias values.
2412  *
2413  * @see llvm::GlobalAlias
2414  *
2415  * @{
2416  */
2417 
2418 LLVM_ATTRIBUTE_C_DEPRECATED(
2419     LLVMValueRef LLVMAddAlias(LLVMModuleRef M, LLVMTypeRef Ty,
2420                               LLVMValueRef Aliasee, const char *Name),
2421     "Use LLVMAddAlias2 instead to support opaque pointers");
2422 
2423 /**
2424  * Add a GlobalAlias with the given value type, address space and aliasee.
2425  *
2426  * @see llvm::GlobalAlias::create()
2427  */
2428 LLVMValueRef LLVMAddAlias2(LLVMModuleRef M, LLVMTypeRef ValueTy,
2429                            unsigned AddrSpace, LLVMValueRef Aliasee,
2430                            const char *Name);
2431 
2432 /**
2433  * Obtain a GlobalAlias value from a Module by its name.
2434  *
2435  * The returned value corresponds to a llvm::GlobalAlias value.
2436  *
2437  * @see llvm::Module::getNamedAlias()
2438  */
2439 LLVMValueRef LLVMGetNamedGlobalAlias(LLVMModuleRef M,
2440                                      const char *Name, size_t NameLen);
2441 
2442 /**
2443  * Obtain an iterator to the first GlobalAlias in a Module.
2444  *
2445  * @see llvm::Module::alias_begin()
2446  */
2447 LLVMValueRef LLVMGetFirstGlobalAlias(LLVMModuleRef M);
2448 
2449 /**
2450  * Obtain an iterator to the last GlobalAlias in a Module.
2451  *
2452  * @see llvm::Module::alias_end()
2453  */
2454 LLVMValueRef LLVMGetLastGlobalAlias(LLVMModuleRef M);
2455 
2456 /**
2457  * Advance a GlobalAlias iterator to the next GlobalAlias.
2458  *
2459  * Returns NULL if the iterator was already at the end and there are no more
2460  * global aliases.
2461  */
2462 LLVMValueRef LLVMGetNextGlobalAlias(LLVMValueRef GA);
2463 
2464 /**
2465  * Decrement a GlobalAlias iterator to the previous GlobalAlias.
2466  *
2467  * Returns NULL if the iterator was already at the beginning and there are
2468  * no previous global aliases.
2469  */
2470 LLVMValueRef LLVMGetPreviousGlobalAlias(LLVMValueRef GA);
2471 
2472 /**
2473  * Retrieve the target value of an alias.
2474  */
2475 LLVMValueRef LLVMAliasGetAliasee(LLVMValueRef Alias);
2476 
2477 /**
2478  * Set the target value of an alias.
2479  */
2480 void LLVMAliasSetAliasee(LLVMValueRef Alias, LLVMValueRef Aliasee);
2481 
2482 /**
2483  * @}
2484  */
2485 
2486 /**
2487  * @defgroup LLVMCCoreValueFunction Function values
2488  *
2489  * Functions in this group operate on LLVMValueRef instances that
2490  * correspond to llvm::Function instances.
2491  *
2492  * @see llvm::Function
2493  *
2494  * @{
2495  */
2496 
2497 /**
2498  * Remove a function from its containing module and deletes it.
2499  *
2500  * @see llvm::Function::eraseFromParent()
2501  */
2502 void LLVMDeleteFunction(LLVMValueRef Fn);
2503 
2504 /**
2505  * Check whether the given function has a personality function.
2506  *
2507  * @see llvm::Function::hasPersonalityFn()
2508  */
2509 LLVMBool LLVMHasPersonalityFn(LLVMValueRef Fn);
2510 
2511 /**
2512  * Obtain the personality function attached to the function.
2513  *
2514  * @see llvm::Function::getPersonalityFn()
2515  */
2516 LLVMValueRef LLVMGetPersonalityFn(LLVMValueRef Fn);
2517 
2518 /**
2519  * Set the personality function attached to the function.
2520  *
2521  * @see llvm::Function::setPersonalityFn()
2522  */
2523 void LLVMSetPersonalityFn(LLVMValueRef Fn, LLVMValueRef PersonalityFn);
2524 
2525 /**
2526  * Obtain the intrinsic ID number which matches the given function name.
2527  *
2528  * @see llvm::Function::lookupIntrinsicID()
2529  */
2530 unsigned LLVMLookupIntrinsicID(const char *Name, size_t NameLen);
2531 
2532 /**
2533  * Obtain the ID number from a function instance.
2534  *
2535  * @see llvm::Function::getIntrinsicID()
2536  */
2537 unsigned LLVMGetIntrinsicID(LLVMValueRef Fn);
2538 
2539 /**
2540  * Create or insert the declaration of an intrinsic.  For overloaded intrinsics,
2541  * parameter types must be provided to uniquely identify an overload.
2542  *
2543  * @see llvm::Intrinsic::getDeclaration()
2544  */
2545 LLVMValueRef LLVMGetIntrinsicDeclaration(LLVMModuleRef Mod,
2546                                          unsigned ID,
2547                                          LLVMTypeRef *ParamTypes,
2548                                          size_t ParamCount);
2549 
2550 /**
2551  * Retrieves the type of an intrinsic.  For overloaded intrinsics, parameter
2552  * types must be provided to uniquely identify an overload.
2553  *
2554  * @see llvm::Intrinsic::getType()
2555  */
2556 LLVMTypeRef LLVMIntrinsicGetType(LLVMContextRef Ctx, unsigned ID,
2557                                  LLVMTypeRef *ParamTypes, size_t ParamCount);
2558 
2559 /**
2560  * Retrieves the name of an intrinsic.
2561  *
2562  * @see llvm::Intrinsic::getName()
2563  */
2564 const char *LLVMIntrinsicGetName(unsigned ID, size_t *NameLength);
2565 
2566 /** Deprecated: Use LLVMIntrinsicCopyOverloadedName2 instead. */
2567 const char *LLVMIntrinsicCopyOverloadedName(unsigned ID,
2568                                             LLVMTypeRef *ParamTypes,
2569                                             size_t ParamCount,
2570                                             size_t *NameLength);
2571 
2572 /**
2573  * Copies the name of an overloaded intrinsic identified by a given list of
2574  * parameter types.
2575  *
2576  * Unlike LLVMIntrinsicGetName, the caller is responsible for freeing the
2577  * returned string.
2578  *
2579  * This version also supports unnamed types.
2580  *
2581  * @see llvm::Intrinsic::getName()
2582  */
2583 const char *LLVMIntrinsicCopyOverloadedName2(LLVMModuleRef Mod, unsigned ID,
2584                                              LLVMTypeRef *ParamTypes,
2585                                              size_t ParamCount,
2586                                              size_t *NameLength);
2587 
2588 /**
2589  * Obtain if the intrinsic identified by the given ID is overloaded.
2590  *
2591  * @see llvm::Intrinsic::isOverloaded()
2592  */
2593 LLVMBool LLVMIntrinsicIsOverloaded(unsigned ID);
2594 
2595 /**
2596  * Obtain the calling function of a function.
2597  *
2598  * The returned value corresponds to the LLVMCallConv enumeration.
2599  *
2600  * @see llvm::Function::getCallingConv()
2601  */
2602 unsigned LLVMGetFunctionCallConv(LLVMValueRef Fn);
2603 
2604 /**
2605  * Set the calling convention of a function.
2606  *
2607  * @see llvm::Function::setCallingConv()
2608  *
2609  * @param Fn Function to operate on
2610  * @param CC LLVMCallConv to set calling convention to
2611  */
2612 void LLVMSetFunctionCallConv(LLVMValueRef Fn, unsigned CC);
2613 
2614 /**
2615  * Obtain the name of the garbage collector to use during code
2616  * generation.
2617  *
2618  * @see llvm::Function::getGC()
2619  */
2620 const char *LLVMGetGC(LLVMValueRef Fn);
2621 
2622 /**
2623  * Define the garbage collector to use during code generation.
2624  *
2625  * @see llvm::Function::setGC()
2626  */
2627 void LLVMSetGC(LLVMValueRef Fn, const char *Name);
2628 
2629 /**
2630  * Add an attribute to a function.
2631  *
2632  * @see llvm::Function::addAttribute()
2633  */
2634 void LLVMAddAttributeAtIndex(LLVMValueRef F, LLVMAttributeIndex Idx,
2635                              LLVMAttributeRef A);
2636 unsigned LLVMGetAttributeCountAtIndex(LLVMValueRef F, LLVMAttributeIndex Idx);
2637 void LLVMGetAttributesAtIndex(LLVMValueRef F, LLVMAttributeIndex Idx,
2638                               LLVMAttributeRef *Attrs);
2639 LLVMAttributeRef LLVMGetEnumAttributeAtIndex(LLVMValueRef F,
2640                                              LLVMAttributeIndex Idx,
2641                                              unsigned KindID);
2642 LLVMAttributeRef LLVMGetStringAttributeAtIndex(LLVMValueRef F,
2643                                                LLVMAttributeIndex Idx,
2644                                                const char *K, unsigned KLen);
2645 void LLVMRemoveEnumAttributeAtIndex(LLVMValueRef F, LLVMAttributeIndex Idx,
2646                                     unsigned KindID);
2647 void LLVMRemoveStringAttributeAtIndex(LLVMValueRef F, LLVMAttributeIndex Idx,
2648                                       const char *K, unsigned KLen);
2649 
2650 /**
2651  * Add a target-dependent attribute to a function
2652  * @see llvm::AttrBuilder::addAttribute()
2653  */
2654 void LLVMAddTargetDependentFunctionAttr(LLVMValueRef Fn, const char *A,
2655                                         const char *V);
2656 
2657 /**
2658  * @defgroup LLVMCCoreValueFunctionParameters Function Parameters
2659  *
2660  * Functions in this group relate to arguments/parameters on functions.
2661  *
2662  * Functions in this group expect LLVMValueRef instances that correspond
2663  * to llvm::Function instances.
2664  *
2665  * @{
2666  */
2667 
2668 /**
2669  * Obtain the number of parameters in a function.
2670  *
2671  * @see llvm::Function::arg_size()
2672  */
2673 unsigned LLVMCountParams(LLVMValueRef Fn);
2674 
2675 /**
2676  * Obtain the parameters in a function.
2677  *
2678  * The takes a pointer to a pre-allocated array of LLVMValueRef that is
2679  * at least LLVMCountParams() long. This array will be filled with
2680  * LLVMValueRef instances which correspond to the parameters the
2681  * function receives. Each LLVMValueRef corresponds to a llvm::Argument
2682  * instance.
2683  *
2684  * @see llvm::Function::arg_begin()
2685  */
2686 void LLVMGetParams(LLVMValueRef Fn, LLVMValueRef *Params);
2687 
2688 /**
2689  * Obtain the parameter at the specified index.
2690  *
2691  * Parameters are indexed from 0.
2692  *
2693  * @see llvm::Function::arg_begin()
2694  */
2695 LLVMValueRef LLVMGetParam(LLVMValueRef Fn, unsigned Index);
2696 
2697 /**
2698  * Obtain the function to which this argument belongs.
2699  *
2700  * Unlike other functions in this group, this one takes an LLVMValueRef
2701  * that corresponds to a llvm::Attribute.
2702  *
2703  * The returned LLVMValueRef is the llvm::Function to which this
2704  * argument belongs.
2705  */
2706 LLVMValueRef LLVMGetParamParent(LLVMValueRef Inst);
2707 
2708 /**
2709  * Obtain the first parameter to a function.
2710  *
2711  * @see llvm::Function::arg_begin()
2712  */
2713 LLVMValueRef LLVMGetFirstParam(LLVMValueRef Fn);
2714 
2715 /**
2716  * Obtain the last parameter to a function.
2717  *
2718  * @see llvm::Function::arg_end()
2719  */
2720 LLVMValueRef LLVMGetLastParam(LLVMValueRef Fn);
2721 
2722 /**
2723  * Obtain the next parameter to a function.
2724  *
2725  * This takes an LLVMValueRef obtained from LLVMGetFirstParam() (which is
2726  * actually a wrapped iterator) and obtains the next parameter from the
2727  * underlying iterator.
2728  */
2729 LLVMValueRef LLVMGetNextParam(LLVMValueRef Arg);
2730 
2731 /**
2732  * Obtain the previous parameter to a function.
2733  *
2734  * This is the opposite of LLVMGetNextParam().
2735  */
2736 LLVMValueRef LLVMGetPreviousParam(LLVMValueRef Arg);
2737 
2738 /**
2739  * Set the alignment for a function parameter.
2740  *
2741  * @see llvm::Argument::addAttr()
2742  * @see llvm::AttrBuilder::addAlignmentAttr()
2743  */
2744 void LLVMSetParamAlignment(LLVMValueRef Arg, unsigned Align);
2745 
2746 /**
2747  * @}
2748  */
2749 
2750 /**
2751  * @defgroup LLVMCCoreValueGlobalIFunc IFuncs
2752  *
2753  * Functions in this group relate to indirect functions.
2754  *
2755  * Functions in this group expect LLVMValueRef instances that correspond
2756  * to llvm::GlobalIFunc instances.
2757  *
2758  * @{
2759  */
2760 
2761 /**
2762  * Add a global indirect function to a module under a specified name.
2763  *
2764  * @see llvm::GlobalIFunc::create()
2765  */
2766 LLVMValueRef LLVMAddGlobalIFunc(LLVMModuleRef M,
2767                                 const char *Name, size_t NameLen,
2768                                 LLVMTypeRef Ty, unsigned AddrSpace,
2769                                 LLVMValueRef Resolver);
2770 
2771 /**
2772  * Obtain a GlobalIFunc value from a Module by its name.
2773  *
2774  * The returned value corresponds to a llvm::GlobalIFunc value.
2775  *
2776  * @see llvm::Module::getNamedIFunc()
2777  */
2778 LLVMValueRef LLVMGetNamedGlobalIFunc(LLVMModuleRef M,
2779                                      const char *Name, size_t NameLen);
2780 
2781 /**
2782  * Obtain an iterator to the first GlobalIFunc in a Module.
2783  *
2784  * @see llvm::Module::ifunc_begin()
2785  */
2786 LLVMValueRef LLVMGetFirstGlobalIFunc(LLVMModuleRef M);
2787 
2788 /**
2789  * Obtain an iterator to the last GlobalIFunc in a Module.
2790  *
2791  * @see llvm::Module::ifunc_end()
2792  */
2793 LLVMValueRef LLVMGetLastGlobalIFunc(LLVMModuleRef M);
2794 
2795 /**
2796  * Advance a GlobalIFunc iterator to the next GlobalIFunc.
2797  *
2798  * Returns NULL if the iterator was already at the end and there are no more
2799  * global aliases.
2800  */
2801 LLVMValueRef LLVMGetNextGlobalIFunc(LLVMValueRef IFunc);
2802 
2803 /**
2804  * Decrement a GlobalIFunc iterator to the previous GlobalIFunc.
2805  *
2806  * Returns NULL if the iterator was already at the beginning and there are
2807  * no previous global aliases.
2808  */
2809 LLVMValueRef LLVMGetPreviousGlobalIFunc(LLVMValueRef IFunc);
2810 
2811 /**
2812  * Retrieves the resolver function associated with this indirect function, or
2813  * NULL if it doesn't not exist.
2814  *
2815  * @see llvm::GlobalIFunc::getResolver()
2816  */
2817 LLVMValueRef LLVMGetGlobalIFuncResolver(LLVMValueRef IFunc);
2818 
2819 /**
2820  * Sets the resolver function associated with this indirect function.
2821  *
2822  * @see llvm::GlobalIFunc::setResolver()
2823  */
2824 void LLVMSetGlobalIFuncResolver(LLVMValueRef IFunc, LLVMValueRef Resolver);
2825 
2826 /**
2827  * Remove a global indirect function from its parent module and delete it.
2828  *
2829  * @see llvm::GlobalIFunc::eraseFromParent()
2830  */
2831 void LLVMEraseGlobalIFunc(LLVMValueRef IFunc);
2832 
2833 /**
2834  * Remove a global indirect function from its parent module.
2835  *
2836  * This unlinks the global indirect function from its containing module but
2837  * keeps it alive.
2838  *
2839  * @see llvm::GlobalIFunc::removeFromParent()
2840  */
2841 void LLVMRemoveGlobalIFunc(LLVMValueRef IFunc);
2842 
2843 /**
2844  * @}
2845  */
2846 
2847 /**
2848  * @}
2849  */
2850 
2851 /**
2852  * @}
2853  */
2854 
2855 /**
2856  * @}
2857  */
2858 
2859 /**
2860  * @defgroup LLVMCCoreValueMetadata Metadata
2861  *
2862  * @{
2863  */
2864 
2865 /**
2866  * Create an MDString value from a given string value.
2867  *
2868  * The MDString value does not take ownership of the given string, it remains
2869  * the responsibility of the caller to free it.
2870  *
2871  * @see llvm::MDString::get()
2872  */
2873 LLVMMetadataRef LLVMMDStringInContext2(LLVMContextRef C, const char *Str,
2874                                        size_t SLen);
2875 
2876 /**
2877  * Create an MDNode value with the given array of operands.
2878  *
2879  * @see llvm::MDNode::get()
2880  */
2881 LLVMMetadataRef LLVMMDNodeInContext2(LLVMContextRef C, LLVMMetadataRef *MDs,
2882                                      size_t Count);
2883 
2884 /**
2885  * Obtain a Metadata as a Value.
2886  */
2887 LLVMValueRef LLVMMetadataAsValue(LLVMContextRef C, LLVMMetadataRef MD);
2888 
2889 /**
2890  * Obtain a Value as a Metadata.
2891  */
2892 LLVMMetadataRef LLVMValueAsMetadata(LLVMValueRef Val);
2893 
2894 /**
2895  * Obtain the underlying string from a MDString value.
2896  *
2897  * @param V Instance to obtain string from.
2898  * @param Length Memory address which will hold length of returned string.
2899  * @return String data in MDString.
2900  */
2901 const char *LLVMGetMDString(LLVMValueRef V, unsigned *Length);
2902 
2903 /**
2904  * Obtain the number of operands from an MDNode value.
2905  *
2906  * @param V MDNode to get number of operands from.
2907  * @return Number of operands of the MDNode.
2908  */
2909 unsigned LLVMGetMDNodeNumOperands(LLVMValueRef V);
2910 
2911 /**
2912  * Obtain the given MDNode's operands.
2913  *
2914  * The passed LLVMValueRef pointer should point to enough memory to hold all of
2915  * the operands of the given MDNode (see LLVMGetMDNodeNumOperands) as
2916  * LLVMValueRefs. This memory will be populated with the LLVMValueRefs of the
2917  * MDNode's operands.
2918  *
2919  * @param V MDNode to get the operands from.
2920  * @param Dest Destination array for operands.
2921  */
2922 void LLVMGetMDNodeOperands(LLVMValueRef V, LLVMValueRef *Dest);
2923 
2924 /** Deprecated: Use LLVMMDStringInContext2 instead. */
2925 LLVMValueRef LLVMMDStringInContext(LLVMContextRef C, const char *Str,
2926                                    unsigned SLen);
2927 /** Deprecated: Use LLVMMDStringInContext2 instead. */
2928 LLVMValueRef LLVMMDString(const char *Str, unsigned SLen);
2929 /** Deprecated: Use LLVMMDNodeInContext2 instead. */
2930 LLVMValueRef LLVMMDNodeInContext(LLVMContextRef C, LLVMValueRef *Vals,
2931                                  unsigned Count);
2932 /** Deprecated: Use LLVMMDNodeInContext2 instead. */
2933 LLVMValueRef LLVMMDNode(LLVMValueRef *Vals, unsigned Count);
2934 
2935 /**
2936  * @}
2937  */
2938 
2939 /**
2940  * @defgroup LLVMCCoreValueBasicBlock Basic Block
2941  *
2942  * A basic block represents a single entry single exit section of code.
2943  * Basic blocks contain a list of instructions which form the body of
2944  * the block.
2945  *
2946  * Basic blocks belong to functions. They have the type of label.
2947  *
2948  * Basic blocks are themselves values. However, the C API models them as
2949  * LLVMBasicBlockRef.
2950  *
2951  * @see llvm::BasicBlock
2952  *
2953  * @{
2954  */
2955 
2956 /**
2957  * Convert a basic block instance to a value type.
2958  */
2959 LLVMValueRef LLVMBasicBlockAsValue(LLVMBasicBlockRef BB);
2960 
2961 /**
2962  * Determine whether an LLVMValueRef is itself a basic block.
2963  */
2964 LLVMBool LLVMValueIsBasicBlock(LLVMValueRef Val);
2965 
2966 /**
2967  * Convert an LLVMValueRef to an LLVMBasicBlockRef instance.
2968  */
2969 LLVMBasicBlockRef LLVMValueAsBasicBlock(LLVMValueRef Val);
2970 
2971 /**
2972  * Obtain the string name of a basic block.
2973  */
2974 const char *LLVMGetBasicBlockName(LLVMBasicBlockRef BB);
2975 
2976 /**
2977  * Obtain the function to which a basic block belongs.
2978  *
2979  * @see llvm::BasicBlock::getParent()
2980  */
2981 LLVMValueRef LLVMGetBasicBlockParent(LLVMBasicBlockRef BB);
2982 
2983 /**
2984  * Obtain the terminator instruction for a basic block.
2985  *
2986  * If the basic block does not have a terminator (it is not well-formed
2987  * if it doesn't), then NULL is returned.
2988  *
2989  * The returned LLVMValueRef corresponds to an llvm::Instruction.
2990  *
2991  * @see llvm::BasicBlock::getTerminator()
2992  */
2993 LLVMValueRef LLVMGetBasicBlockTerminator(LLVMBasicBlockRef BB);
2994 
2995 /**
2996  * Obtain the number of basic blocks in a function.
2997  *
2998  * @param Fn Function value to operate on.
2999  */
3000 unsigned LLVMCountBasicBlocks(LLVMValueRef Fn);
3001 
3002 /**
3003  * Obtain all of the basic blocks in a function.
3004  *
3005  * This operates on a function value. The BasicBlocks parameter is a
3006  * pointer to a pre-allocated array of LLVMBasicBlockRef of at least
3007  * LLVMCountBasicBlocks() in length. This array is populated with
3008  * LLVMBasicBlockRef instances.
3009  */
3010 void LLVMGetBasicBlocks(LLVMValueRef Fn, LLVMBasicBlockRef *BasicBlocks);
3011 
3012 /**
3013  * Obtain the first basic block in a function.
3014  *
3015  * The returned basic block can be used as an iterator. You will likely
3016  * eventually call into LLVMGetNextBasicBlock() with it.
3017  *
3018  * @see llvm::Function::begin()
3019  */
3020 LLVMBasicBlockRef LLVMGetFirstBasicBlock(LLVMValueRef Fn);
3021 
3022 /**
3023  * Obtain the last basic block in a function.
3024  *
3025  * @see llvm::Function::end()
3026  */
3027 LLVMBasicBlockRef LLVMGetLastBasicBlock(LLVMValueRef Fn);
3028 
3029 /**
3030  * Advance a basic block iterator.
3031  */
3032 LLVMBasicBlockRef LLVMGetNextBasicBlock(LLVMBasicBlockRef BB);
3033 
3034 /**
3035  * Go backwards in a basic block iterator.
3036  */
3037 LLVMBasicBlockRef LLVMGetPreviousBasicBlock(LLVMBasicBlockRef BB);
3038 
3039 /**
3040  * Obtain the basic block that corresponds to the entry point of a
3041  * function.
3042  *
3043  * @see llvm::Function::getEntryBlock()
3044  */
3045 LLVMBasicBlockRef LLVMGetEntryBasicBlock(LLVMValueRef Fn);
3046 
3047 /**
3048  * Insert the given basic block after the insertion point of the given builder.
3049  *
3050  * The insertion point must be valid.
3051  *
3052  * @see llvm::Function::BasicBlockListType::insertAfter()
3053  */
3054 void LLVMInsertExistingBasicBlockAfterInsertBlock(LLVMBuilderRef Builder,
3055                                                   LLVMBasicBlockRef BB);
3056 
3057 /**
3058  * Append the given basic block to the basic block list of the given function.
3059  *
3060  * @see llvm::Function::BasicBlockListType::push_back()
3061  */
3062 void LLVMAppendExistingBasicBlock(LLVMValueRef Fn,
3063                                   LLVMBasicBlockRef BB);
3064 
3065 /**
3066  * Create a new basic block without inserting it into a function.
3067  *
3068  * @see llvm::BasicBlock::Create()
3069  */
3070 LLVMBasicBlockRef LLVMCreateBasicBlockInContext(LLVMContextRef C,
3071                                                 const char *Name);
3072 
3073 /**
3074  * Append a basic block to the end of a function.
3075  *
3076  * @see llvm::BasicBlock::Create()
3077  */
3078 LLVMBasicBlockRef LLVMAppendBasicBlockInContext(LLVMContextRef C,
3079                                                 LLVMValueRef Fn,
3080                                                 const char *Name);
3081 
3082 /**
3083  * Append a basic block to the end of a function using the global
3084  * context.
3085  *
3086  * @see llvm::BasicBlock::Create()
3087  */
3088 LLVMBasicBlockRef LLVMAppendBasicBlock(LLVMValueRef Fn, const char *Name);
3089 
3090 /**
3091  * Insert a basic block in a function before another basic block.
3092  *
3093  * The function to add to is determined by the function of the
3094  * passed basic block.
3095  *
3096  * @see llvm::BasicBlock::Create()
3097  */
3098 LLVMBasicBlockRef LLVMInsertBasicBlockInContext(LLVMContextRef C,
3099                                                 LLVMBasicBlockRef BB,
3100                                                 const char *Name);
3101 
3102 /**
3103  * Insert a basic block in a function using the global context.
3104  *
3105  * @see llvm::BasicBlock::Create()
3106  */
3107 LLVMBasicBlockRef LLVMInsertBasicBlock(LLVMBasicBlockRef InsertBeforeBB,
3108                                        const char *Name);
3109 
3110 /**
3111  * Remove a basic block from a function and delete it.
3112  *
3113  * This deletes the basic block from its containing function and deletes
3114  * the basic block itself.
3115  *
3116  * @see llvm::BasicBlock::eraseFromParent()
3117  */
3118 void LLVMDeleteBasicBlock(LLVMBasicBlockRef BB);
3119 
3120 /**
3121  * Remove a basic block from a function.
3122  *
3123  * This deletes the basic block from its containing function but keep
3124  * the basic block alive.
3125  *
3126  * @see llvm::BasicBlock::removeFromParent()
3127  */
3128 void LLVMRemoveBasicBlockFromParent(LLVMBasicBlockRef BB);
3129 
3130 /**
3131  * Move a basic block to before another one.
3132  *
3133  * @see llvm::BasicBlock::moveBefore()
3134  */
3135 void LLVMMoveBasicBlockBefore(LLVMBasicBlockRef BB, LLVMBasicBlockRef MovePos);
3136 
3137 /**
3138  * Move a basic block to after another one.
3139  *
3140  * @see llvm::BasicBlock::moveAfter()
3141  */
3142 void LLVMMoveBasicBlockAfter(LLVMBasicBlockRef BB, LLVMBasicBlockRef MovePos);
3143 
3144 /**
3145  * Obtain the first instruction in a basic block.
3146  *
3147  * The returned LLVMValueRef corresponds to a llvm::Instruction
3148  * instance.
3149  */
3150 LLVMValueRef LLVMGetFirstInstruction(LLVMBasicBlockRef BB);
3151 
3152 /**
3153  * Obtain the last instruction in a basic block.
3154  *
3155  * The returned LLVMValueRef corresponds to an LLVM:Instruction.
3156  */
3157 LLVMValueRef LLVMGetLastInstruction(LLVMBasicBlockRef BB);
3158 
3159 /**
3160  * @}
3161  */
3162 
3163 /**
3164  * @defgroup LLVMCCoreValueInstruction Instructions
3165  *
3166  * Functions in this group relate to the inspection and manipulation of
3167  * individual instructions.
3168  *
3169  * In the C++ API, an instruction is modeled by llvm::Instruction. This
3170  * class has a large number of descendents. llvm::Instruction is a
3171  * llvm::Value and in the C API, instructions are modeled by
3172  * LLVMValueRef.
3173  *
3174  * This group also contains sub-groups which operate on specific
3175  * llvm::Instruction types, e.g. llvm::CallInst.
3176  *
3177  * @{
3178  */
3179 
3180 /**
3181  * Determine whether an instruction has any metadata attached.
3182  */
3183 int LLVMHasMetadata(LLVMValueRef Val);
3184 
3185 /**
3186  * Return metadata associated with an instruction value.
3187  */
3188 LLVMValueRef LLVMGetMetadata(LLVMValueRef Val, unsigned KindID);
3189 
3190 /**
3191  * Set metadata associated with an instruction value.
3192  */
3193 void LLVMSetMetadata(LLVMValueRef Val, unsigned KindID, LLVMValueRef Node);
3194 
3195 /**
3196  * Returns the metadata associated with an instruction value, but filters out
3197  * all the debug locations.
3198  *
3199  * @see llvm::Instruction::getAllMetadataOtherThanDebugLoc()
3200  */
3201 LLVMValueMetadataEntry *
3202 LLVMInstructionGetAllMetadataOtherThanDebugLoc(LLVMValueRef Instr,
3203                                                size_t *NumEntries);
3204 
3205 /**
3206  * Obtain the basic block to which an instruction belongs.
3207  *
3208  * @see llvm::Instruction::getParent()
3209  */
3210 LLVMBasicBlockRef LLVMGetInstructionParent(LLVMValueRef Inst);
3211 
3212 /**
3213  * Obtain the instruction that occurs after the one specified.
3214  *
3215  * The next instruction will be from the same basic block.
3216  *
3217  * If this is the last instruction in a basic block, NULL will be
3218  * returned.
3219  */
3220 LLVMValueRef LLVMGetNextInstruction(LLVMValueRef Inst);
3221 
3222 /**
3223  * Obtain the instruction that occurred before this one.
3224  *
3225  * If the instruction is the first instruction in a basic block, NULL
3226  * will be returned.
3227  */
3228 LLVMValueRef LLVMGetPreviousInstruction(LLVMValueRef Inst);
3229 
3230 /**
3231  * Remove an instruction.
3232  *
3233  * The instruction specified is removed from its containing building
3234  * block but is kept alive.
3235  *
3236  * @see llvm::Instruction::removeFromParent()
3237  */
3238 void LLVMInstructionRemoveFromParent(LLVMValueRef Inst);
3239 
3240 /**
3241  * Remove and delete an instruction.
3242  *
3243  * The instruction specified is removed from its containing building
3244  * block and then deleted.
3245  *
3246  * @see llvm::Instruction::eraseFromParent()
3247  */
3248 void LLVMInstructionEraseFromParent(LLVMValueRef Inst);
3249 
3250 /**
3251  * Delete an instruction.
3252  *
3253  * The instruction specified is deleted. It must have previously been
3254  * removed from its containing building block.
3255  *
3256  * @see llvm::Value::deleteValue()
3257  */
3258 void LLVMDeleteInstruction(LLVMValueRef Inst);
3259 
3260 /**
3261  * Obtain the code opcode for an individual instruction.
3262  *
3263  * @see llvm::Instruction::getOpCode()
3264  */
3265 LLVMOpcode LLVMGetInstructionOpcode(LLVMValueRef Inst);
3266 
3267 /**
3268  * Obtain the predicate of an instruction.
3269  *
3270  * This is only valid for instructions that correspond to llvm::ICmpInst
3271  * or llvm::ConstantExpr whose opcode is llvm::Instruction::ICmp.
3272  *
3273  * @see llvm::ICmpInst::getPredicate()
3274  */
3275 LLVMIntPredicate LLVMGetICmpPredicate(LLVMValueRef Inst);
3276 
3277 /**
3278  * Obtain the float predicate of an instruction.
3279  *
3280  * This is only valid for instructions that correspond to llvm::FCmpInst
3281  * or llvm::ConstantExpr whose opcode is llvm::Instruction::FCmp.
3282  *
3283  * @see llvm::FCmpInst::getPredicate()
3284  */
3285 LLVMRealPredicate LLVMGetFCmpPredicate(LLVMValueRef Inst);
3286 
3287 /**
3288  * Create a copy of 'this' instruction that is identical in all ways
3289  * except the following:
3290  *   * The instruction has no parent
3291  *   * The instruction has no name
3292  *
3293  * @see llvm::Instruction::clone()
3294  */
3295 LLVMValueRef LLVMInstructionClone(LLVMValueRef Inst);
3296 
3297 /**
3298  * Determine whether an instruction is a terminator. This routine is named to
3299  * be compatible with historical functions that did this by querying the
3300  * underlying C++ type.
3301  *
3302  * @see llvm::Instruction::isTerminator()
3303  */
3304 LLVMValueRef LLVMIsATerminatorInst(LLVMValueRef Inst);
3305 
3306 /**
3307  * @defgroup LLVMCCoreValueInstructionCall Call Sites and Invocations
3308  *
3309  * Functions in this group apply to instructions that refer to call
3310  * sites and invocations. These correspond to C++ types in the
3311  * llvm::CallInst class tree.
3312  *
3313  * @{
3314  */
3315 
3316 /**
3317  * Obtain the argument count for a call instruction.
3318  *
3319  * This expects an LLVMValueRef that corresponds to a llvm::CallInst,
3320  * llvm::InvokeInst, or llvm:FuncletPadInst.
3321  *
3322  * @see llvm::CallInst::getNumArgOperands()
3323  * @see llvm::InvokeInst::getNumArgOperands()
3324  * @see llvm::FuncletPadInst::getNumArgOperands()
3325  */
3326 unsigned LLVMGetNumArgOperands(LLVMValueRef Instr);
3327 
3328 /**
3329  * Set the calling convention for a call instruction.
3330  *
3331  * This expects an LLVMValueRef that corresponds to a llvm::CallInst or
3332  * llvm::InvokeInst.
3333  *
3334  * @see llvm::CallInst::setCallingConv()
3335  * @see llvm::InvokeInst::setCallingConv()
3336  */
3337 void LLVMSetInstructionCallConv(LLVMValueRef Instr, unsigned CC);
3338 
3339 /**
3340  * Obtain the calling convention for a call instruction.
3341  *
3342  * This is the opposite of LLVMSetInstructionCallConv(). Reads its
3343  * usage.
3344  *
3345  * @see LLVMSetInstructionCallConv()
3346  */
3347 unsigned LLVMGetInstructionCallConv(LLVMValueRef Instr);
3348 
3349 void LLVMSetInstrParamAlignment(LLVMValueRef Instr, LLVMAttributeIndex Idx,
3350                                 unsigned Align);
3351 
3352 void LLVMAddCallSiteAttribute(LLVMValueRef C, LLVMAttributeIndex Idx,
3353                               LLVMAttributeRef A);
3354 unsigned LLVMGetCallSiteAttributeCount(LLVMValueRef C, LLVMAttributeIndex Idx);
3355 void LLVMGetCallSiteAttributes(LLVMValueRef C, LLVMAttributeIndex Idx,
3356                                LLVMAttributeRef *Attrs);
3357 LLVMAttributeRef LLVMGetCallSiteEnumAttribute(LLVMValueRef C,
3358                                               LLVMAttributeIndex Idx,
3359                                               unsigned KindID);
3360 LLVMAttributeRef LLVMGetCallSiteStringAttribute(LLVMValueRef C,
3361                                                 LLVMAttributeIndex Idx,
3362                                                 const char *K, unsigned KLen);
3363 void LLVMRemoveCallSiteEnumAttribute(LLVMValueRef C, LLVMAttributeIndex Idx,
3364                                      unsigned KindID);
3365 void LLVMRemoveCallSiteStringAttribute(LLVMValueRef C, LLVMAttributeIndex Idx,
3366                                        const char *K, unsigned KLen);
3367 
3368 /**
3369  * Obtain the function type called by this instruction.
3370  *
3371  * @see llvm::CallBase::getFunctionType()
3372  */
3373 LLVMTypeRef LLVMGetCalledFunctionType(LLVMValueRef C);
3374 
3375 /**
3376  * Obtain the pointer to the function invoked by this instruction.
3377  *
3378  * This expects an LLVMValueRef that corresponds to a llvm::CallInst or
3379  * llvm::InvokeInst.
3380  *
3381  * @see llvm::CallInst::getCalledOperand()
3382  * @see llvm::InvokeInst::getCalledOperand()
3383  */
3384 LLVMValueRef LLVMGetCalledValue(LLVMValueRef Instr);
3385 
3386 /**
3387  * Obtain whether a call instruction is a tail call.
3388  *
3389  * This only works on llvm::CallInst instructions.
3390  *
3391  * @see llvm::CallInst::isTailCall()
3392  */
3393 LLVMBool LLVMIsTailCall(LLVMValueRef CallInst);
3394 
3395 /**
3396  * Set whether a call instruction is a tail call.
3397  *
3398  * This only works on llvm::CallInst instructions.
3399  *
3400  * @see llvm::CallInst::setTailCall()
3401  */
3402 void LLVMSetTailCall(LLVMValueRef CallInst, LLVMBool IsTailCall);
3403 
3404 /**
3405  * Return the normal destination basic block.
3406  *
3407  * This only works on llvm::InvokeInst instructions.
3408  *
3409  * @see llvm::InvokeInst::getNormalDest()
3410  */
3411 LLVMBasicBlockRef LLVMGetNormalDest(LLVMValueRef InvokeInst);
3412 
3413 /**
3414  * Return the unwind destination basic block.
3415  *
3416  * Works on llvm::InvokeInst, llvm::CleanupReturnInst, and
3417  * llvm::CatchSwitchInst instructions.
3418  *
3419  * @see llvm::InvokeInst::getUnwindDest()
3420  * @see llvm::CleanupReturnInst::getUnwindDest()
3421  * @see llvm::CatchSwitchInst::getUnwindDest()
3422  */
3423 LLVMBasicBlockRef LLVMGetUnwindDest(LLVMValueRef InvokeInst);
3424 
3425 /**
3426  * Set the normal destination basic block.
3427  *
3428  * This only works on llvm::InvokeInst instructions.
3429  *
3430  * @see llvm::InvokeInst::setNormalDest()
3431  */
3432 void LLVMSetNormalDest(LLVMValueRef InvokeInst, LLVMBasicBlockRef B);
3433 
3434 /**
3435  * Set the unwind destination basic block.
3436  *
3437  * Works on llvm::InvokeInst, llvm::CleanupReturnInst, and
3438  * llvm::CatchSwitchInst instructions.
3439  *
3440  * @see llvm::InvokeInst::setUnwindDest()
3441  * @see llvm::CleanupReturnInst::setUnwindDest()
3442  * @see llvm::CatchSwitchInst::setUnwindDest()
3443  */
3444 void LLVMSetUnwindDest(LLVMValueRef InvokeInst, LLVMBasicBlockRef B);
3445 
3446 /**
3447  * @}
3448  */
3449 
3450 /**
3451  * @defgroup LLVMCCoreValueInstructionTerminator Terminators
3452  *
3453  * Functions in this group only apply to instructions for which
3454  * LLVMIsATerminatorInst returns true.
3455  *
3456  * @{
3457  */
3458 
3459 /**
3460  * Return the number of successors that this terminator has.
3461  *
3462  * @see llvm::Instruction::getNumSuccessors
3463  */
3464 unsigned LLVMGetNumSuccessors(LLVMValueRef Term);
3465 
3466 /**
3467  * Return the specified successor.
3468  *
3469  * @see llvm::Instruction::getSuccessor
3470  */
3471 LLVMBasicBlockRef LLVMGetSuccessor(LLVMValueRef Term, unsigned i);
3472 
3473 /**
3474  * Update the specified successor to point at the provided block.
3475  *
3476  * @see llvm::Instruction::setSuccessor
3477  */
3478 void LLVMSetSuccessor(LLVMValueRef Term, unsigned i, LLVMBasicBlockRef block);
3479 
3480 /**
3481  * Return if a branch is conditional.
3482  *
3483  * This only works on llvm::BranchInst instructions.
3484  *
3485  * @see llvm::BranchInst::isConditional
3486  */
3487 LLVMBool LLVMIsConditional(LLVMValueRef Branch);
3488 
3489 /**
3490  * Return the condition of a branch instruction.
3491  *
3492  * This only works on llvm::BranchInst instructions.
3493  *
3494  * @see llvm::BranchInst::getCondition
3495  */
3496 LLVMValueRef LLVMGetCondition(LLVMValueRef Branch);
3497 
3498 /**
3499  * Set the condition of a branch instruction.
3500  *
3501  * This only works on llvm::BranchInst instructions.
3502  *
3503  * @see llvm::BranchInst::setCondition
3504  */
3505 void LLVMSetCondition(LLVMValueRef Branch, LLVMValueRef Cond);
3506 
3507 /**
3508  * Obtain the default destination basic block of a switch instruction.
3509  *
3510  * This only works on llvm::SwitchInst instructions.
3511  *
3512  * @see llvm::SwitchInst::getDefaultDest()
3513  */
3514 LLVMBasicBlockRef LLVMGetSwitchDefaultDest(LLVMValueRef SwitchInstr);
3515 
3516 /**
3517  * @}
3518  */
3519 
3520 /**
3521  * @defgroup LLVMCCoreValueInstructionAlloca Allocas
3522  *
3523  * Functions in this group only apply to instructions that map to
3524  * llvm::AllocaInst instances.
3525  *
3526  * @{
3527  */
3528 
3529 /**
3530  * Obtain the type that is being allocated by the alloca instruction.
3531  */
3532 LLVMTypeRef LLVMGetAllocatedType(LLVMValueRef Alloca);
3533 
3534 /**
3535  * @}
3536  */
3537 
3538 /**
3539  * @defgroup LLVMCCoreValueInstructionGetElementPointer GEPs
3540  *
3541  * Functions in this group only apply to instructions that map to
3542  * llvm::GetElementPtrInst instances.
3543  *
3544  * @{
3545  */
3546 
3547 /**
3548  * Check whether the given GEP operator is inbounds.
3549  */
3550 LLVMBool LLVMIsInBounds(LLVMValueRef GEP);
3551 
3552 /**
3553  * Set the given GEP instruction to be inbounds or not.
3554  */
3555 void LLVMSetIsInBounds(LLVMValueRef GEP, LLVMBool InBounds);
3556 
3557 /**
3558  * Get the source element type of the given GEP operator.
3559  */
3560 LLVMTypeRef LLVMGetGEPSourceElementType(LLVMValueRef GEP);
3561 
3562 /**
3563  * @}
3564  */
3565 
3566 /**
3567  * @defgroup LLVMCCoreValueInstructionPHINode PHI Nodes
3568  *
3569  * Functions in this group only apply to instructions that map to
3570  * llvm::PHINode instances.
3571  *
3572  * @{
3573  */
3574 
3575 /**
3576  * Add an incoming value to the end of a PHI list.
3577  */
3578 void LLVMAddIncoming(LLVMValueRef PhiNode, LLVMValueRef *IncomingValues,
3579                      LLVMBasicBlockRef *IncomingBlocks, unsigned Count);
3580 
3581 /**
3582  * Obtain the number of incoming basic blocks to a PHI node.
3583  */
3584 unsigned LLVMCountIncoming(LLVMValueRef PhiNode);
3585 
3586 /**
3587  * Obtain an incoming value to a PHI node as an LLVMValueRef.
3588  */
3589 LLVMValueRef LLVMGetIncomingValue(LLVMValueRef PhiNode, unsigned Index);
3590 
3591 /**
3592  * Obtain an incoming value to a PHI node as an LLVMBasicBlockRef.
3593  */
3594 LLVMBasicBlockRef LLVMGetIncomingBlock(LLVMValueRef PhiNode, unsigned Index);
3595 
3596 /**
3597  * @}
3598  */
3599 
3600 /**
3601  * @defgroup LLVMCCoreValueInstructionExtractValue ExtractValue
3602  * @defgroup LLVMCCoreValueInstructionInsertValue InsertValue
3603  *
3604  * Functions in this group only apply to instructions that map to
3605  * llvm::ExtractValue and llvm::InsertValue instances.
3606  *
3607  * @{
3608  */
3609 
3610 /**
3611  * Obtain the number of indices.
3612  * NB: This also works on GEP operators.
3613  */
3614 unsigned LLVMGetNumIndices(LLVMValueRef Inst);
3615 
3616 /**
3617  * Obtain the indices as an array.
3618  */
3619 const unsigned *LLVMGetIndices(LLVMValueRef Inst);
3620 
3621 /**
3622  * @}
3623  */
3624 
3625 /**
3626  * @}
3627  */
3628 
3629 /**
3630  * @}
3631  */
3632 
3633 /**
3634  * @defgroup LLVMCCoreInstructionBuilder Instruction Builders
3635  *
3636  * An instruction builder represents a point within a basic block and is
3637  * the exclusive means of building instructions using the C interface.
3638  *
3639  * @{
3640  */
3641 
3642 LLVMBuilderRef LLVMCreateBuilderInContext(LLVMContextRef C);
3643 LLVMBuilderRef LLVMCreateBuilder(void);
3644 void LLVMPositionBuilder(LLVMBuilderRef Builder, LLVMBasicBlockRef Block,
3645                          LLVMValueRef Instr);
3646 void LLVMPositionBuilderBefore(LLVMBuilderRef Builder, LLVMValueRef Instr);
3647 void LLVMPositionBuilderAtEnd(LLVMBuilderRef Builder, LLVMBasicBlockRef Block);
3648 LLVMBasicBlockRef LLVMGetInsertBlock(LLVMBuilderRef Builder);
3649 void LLVMClearInsertionPosition(LLVMBuilderRef Builder);
3650 void LLVMInsertIntoBuilder(LLVMBuilderRef Builder, LLVMValueRef Instr);
3651 void LLVMInsertIntoBuilderWithName(LLVMBuilderRef Builder, LLVMValueRef Instr,
3652                                    const char *Name);
3653 void LLVMDisposeBuilder(LLVMBuilderRef Builder);
3654 
3655 /* Metadata */
3656 
3657 /**
3658  * Get location information used by debugging information.
3659  *
3660  * @see llvm::IRBuilder::getCurrentDebugLocation()
3661  */
3662 LLVMMetadataRef LLVMGetCurrentDebugLocation2(LLVMBuilderRef Builder);
3663 
3664 /**
3665  * Set location information used by debugging information.
3666  *
3667  * To clear the location metadata of the given instruction, pass NULL to \p Loc.
3668  *
3669  * @see llvm::IRBuilder::SetCurrentDebugLocation()
3670  */
3671 void LLVMSetCurrentDebugLocation2(LLVMBuilderRef Builder, LLVMMetadataRef Loc);
3672 
3673 /**
3674  * Attempts to set the debug location for the given instruction using the
3675  * current debug location for the given builder.  If the builder has no current
3676  * debug location, this function is a no-op.
3677  *
3678  * @deprecated LLVMSetInstDebugLocation is deprecated in favor of the more general
3679  *             LLVMAddMetadataToInst.
3680  *
3681  * @see llvm::IRBuilder::SetInstDebugLocation()
3682  */
3683 void LLVMSetInstDebugLocation(LLVMBuilderRef Builder, LLVMValueRef Inst);
3684 
3685 /**
3686  * Adds the metadata registered with the given builder to the given instruction.
3687  *
3688  * @see llvm::IRBuilder::AddMetadataToInst()
3689  */
3690 void LLVMAddMetadataToInst(LLVMBuilderRef Builder, LLVMValueRef Inst);
3691 
3692 /**
3693  * Get the dafult floating-point math metadata for a given builder.
3694  *
3695  * @see llvm::IRBuilder::getDefaultFPMathTag()
3696  */
3697 LLVMMetadataRef LLVMBuilderGetDefaultFPMathTag(LLVMBuilderRef Builder);
3698 
3699 /**
3700  * Set the default floating-point math metadata for the given builder.
3701  *
3702  * To clear the metadata, pass NULL to \p FPMathTag.
3703  *
3704  * @see llvm::IRBuilder::setDefaultFPMathTag()
3705  */
3706 void LLVMBuilderSetDefaultFPMathTag(LLVMBuilderRef Builder,
3707                                     LLVMMetadataRef FPMathTag);
3708 
3709 /**
3710  * Deprecated: Passing the NULL location will crash.
3711  * Use LLVMGetCurrentDebugLocation2 instead.
3712  */
3713 void LLVMSetCurrentDebugLocation(LLVMBuilderRef Builder, LLVMValueRef L);
3714 /**
3715  * Deprecated: Returning the NULL location will crash.
3716  * Use LLVMGetCurrentDebugLocation2 instead.
3717  */
3718 LLVMValueRef LLVMGetCurrentDebugLocation(LLVMBuilderRef Builder);
3719 
3720 /* Terminators */
3721 LLVMValueRef LLVMBuildRetVoid(LLVMBuilderRef);
3722 LLVMValueRef LLVMBuildRet(LLVMBuilderRef, LLVMValueRef V);
3723 LLVMValueRef LLVMBuildAggregateRet(LLVMBuilderRef, LLVMValueRef *RetVals,
3724                                    unsigned N);
3725 LLVMValueRef LLVMBuildBr(LLVMBuilderRef, LLVMBasicBlockRef Dest);
3726 LLVMValueRef LLVMBuildCondBr(LLVMBuilderRef, LLVMValueRef If,
3727                              LLVMBasicBlockRef Then, LLVMBasicBlockRef Else);
3728 LLVMValueRef LLVMBuildSwitch(LLVMBuilderRef, LLVMValueRef V,
3729                              LLVMBasicBlockRef Else, unsigned NumCases);
3730 LLVMValueRef LLVMBuildIndirectBr(LLVMBuilderRef B, LLVMValueRef Addr,
3731                                  unsigned NumDests);
3732 LLVM_ATTRIBUTE_C_DEPRECATED(
3733     LLVMValueRef LLVMBuildInvoke(LLVMBuilderRef, LLVMValueRef Fn,
3734                                  LLVMValueRef *Args, unsigned NumArgs,
3735                                  LLVMBasicBlockRef Then,
3736                                  LLVMBasicBlockRef Catch, const char *Name),
3737     "Use LLVMBuildInvoke2 instead to support opaque pointers");
3738 LLVMValueRef LLVMBuildInvoke2(LLVMBuilderRef, LLVMTypeRef Ty, LLVMValueRef Fn,
3739                               LLVMValueRef *Args, unsigned NumArgs,
3740                               LLVMBasicBlockRef Then, LLVMBasicBlockRef Catch,
3741                               const char *Name);
3742 LLVMValueRef LLVMBuildUnreachable(LLVMBuilderRef);
3743 
3744 /* Exception Handling */
3745 LLVMValueRef LLVMBuildResume(LLVMBuilderRef B, LLVMValueRef Exn);
3746 LLVMValueRef LLVMBuildLandingPad(LLVMBuilderRef B, LLVMTypeRef Ty,
3747                                  LLVMValueRef PersFn, unsigned NumClauses,
3748                                  const char *Name);
3749 LLVMValueRef LLVMBuildCleanupRet(LLVMBuilderRef B, LLVMValueRef CatchPad,
3750                                  LLVMBasicBlockRef BB);
3751 LLVMValueRef LLVMBuildCatchRet(LLVMBuilderRef B, LLVMValueRef CatchPad,
3752                                LLVMBasicBlockRef BB);
3753 LLVMValueRef LLVMBuildCatchPad(LLVMBuilderRef B, LLVMValueRef ParentPad,
3754                                LLVMValueRef *Args, unsigned NumArgs,
3755                                const char *Name);
3756 LLVMValueRef LLVMBuildCleanupPad(LLVMBuilderRef B, LLVMValueRef ParentPad,
3757                                  LLVMValueRef *Args, unsigned NumArgs,
3758                                  const char *Name);
3759 LLVMValueRef LLVMBuildCatchSwitch(LLVMBuilderRef B, LLVMValueRef ParentPad,
3760                                   LLVMBasicBlockRef UnwindBB,
3761                                   unsigned NumHandlers, const char *Name);
3762 
3763 /* Add a case to the switch instruction */
3764 void LLVMAddCase(LLVMValueRef Switch, LLVMValueRef OnVal,
3765                  LLVMBasicBlockRef Dest);
3766 
3767 /* Add a destination to the indirectbr instruction */
3768 void LLVMAddDestination(LLVMValueRef IndirectBr, LLVMBasicBlockRef Dest);
3769 
3770 /* Get the number of clauses on the landingpad instruction */
3771 unsigned LLVMGetNumClauses(LLVMValueRef LandingPad);
3772 
3773 /* Get the value of the clause at index Idx on the landingpad instruction */
3774 LLVMValueRef LLVMGetClause(LLVMValueRef LandingPad, unsigned Idx);
3775 
3776 /* Add a catch or filter clause to the landingpad instruction */
3777 void LLVMAddClause(LLVMValueRef LandingPad, LLVMValueRef ClauseVal);
3778 
3779 /* Get the 'cleanup' flag in the landingpad instruction */
3780 LLVMBool LLVMIsCleanup(LLVMValueRef LandingPad);
3781 
3782 /* Set the 'cleanup' flag in the landingpad instruction */
3783 void LLVMSetCleanup(LLVMValueRef LandingPad, LLVMBool Val);
3784 
3785 /* Add a destination to the catchswitch instruction */
3786 void LLVMAddHandler(LLVMValueRef CatchSwitch, LLVMBasicBlockRef Dest);
3787 
3788 /* Get the number of handlers on the catchswitch instruction */
3789 unsigned LLVMGetNumHandlers(LLVMValueRef CatchSwitch);
3790 
3791 /**
3792  * Obtain the basic blocks acting as handlers for a catchswitch instruction.
3793  *
3794  * The Handlers parameter should point to a pre-allocated array of
3795  * LLVMBasicBlockRefs at least LLVMGetNumHandlers() large. On return, the
3796  * first LLVMGetNumHandlers() entries in the array will be populated
3797  * with LLVMBasicBlockRef instances.
3798  *
3799  * @param CatchSwitch The catchswitch instruction to operate on.
3800  * @param Handlers Memory address of an array to be filled with basic blocks.
3801  */
3802 void LLVMGetHandlers(LLVMValueRef CatchSwitch, LLVMBasicBlockRef *Handlers);
3803 
3804 /* Funclets */
3805 
3806 /* Get the number of funcletpad arguments. */
3807 LLVMValueRef LLVMGetArgOperand(LLVMValueRef Funclet, unsigned i);
3808 
3809 /* Set a funcletpad argument at the given index. */
3810 void LLVMSetArgOperand(LLVMValueRef Funclet, unsigned i, LLVMValueRef value);
3811 
3812 /**
3813  * Get the parent catchswitch instruction of a catchpad instruction.
3814  *
3815  * This only works on llvm::CatchPadInst instructions.
3816  *
3817  * @see llvm::CatchPadInst::getCatchSwitch()
3818  */
3819 LLVMValueRef LLVMGetParentCatchSwitch(LLVMValueRef CatchPad);
3820 
3821 /**
3822  * Set the parent catchswitch instruction of a catchpad instruction.
3823  *
3824  * This only works on llvm::CatchPadInst instructions.
3825  *
3826  * @see llvm::CatchPadInst::setCatchSwitch()
3827  */
3828 void LLVMSetParentCatchSwitch(LLVMValueRef CatchPad, LLVMValueRef CatchSwitch);
3829 
3830 /* Arithmetic */
3831 LLVMValueRef LLVMBuildAdd(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3832                           const char *Name);
3833 LLVMValueRef LLVMBuildNSWAdd(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3834                              const char *Name);
3835 LLVMValueRef LLVMBuildNUWAdd(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3836                              const char *Name);
3837 LLVMValueRef LLVMBuildFAdd(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3838                            const char *Name);
3839 LLVMValueRef LLVMBuildSub(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3840                           const char *Name);
3841 LLVMValueRef LLVMBuildNSWSub(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3842                              const char *Name);
3843 LLVMValueRef LLVMBuildNUWSub(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3844                              const char *Name);
3845 LLVMValueRef LLVMBuildFSub(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3846                            const char *Name);
3847 LLVMValueRef LLVMBuildMul(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3848                           const char *Name);
3849 LLVMValueRef LLVMBuildNSWMul(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3850                              const char *Name);
3851 LLVMValueRef LLVMBuildNUWMul(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3852                              const char *Name);
3853 LLVMValueRef LLVMBuildFMul(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3854                            const char *Name);
3855 LLVMValueRef LLVMBuildUDiv(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3856                            const char *Name);
3857 LLVMValueRef LLVMBuildExactUDiv(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3858                                 const char *Name);
3859 LLVMValueRef LLVMBuildSDiv(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3860                            const char *Name);
3861 LLVMValueRef LLVMBuildExactSDiv(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3862                                 const char *Name);
3863 LLVMValueRef LLVMBuildFDiv(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3864                            const char *Name);
3865 LLVMValueRef LLVMBuildURem(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3866                            const char *Name);
3867 LLVMValueRef LLVMBuildSRem(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3868                            const char *Name);
3869 LLVMValueRef LLVMBuildFRem(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3870                            const char *Name);
3871 LLVMValueRef LLVMBuildShl(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3872                            const char *Name);
3873 LLVMValueRef LLVMBuildLShr(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3874                            const char *Name);
3875 LLVMValueRef LLVMBuildAShr(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3876                            const char *Name);
3877 LLVMValueRef LLVMBuildAnd(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3878                           const char *Name);
3879 LLVMValueRef LLVMBuildOr(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3880                           const char *Name);
3881 LLVMValueRef LLVMBuildXor(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
3882                           const char *Name);
3883 LLVMValueRef LLVMBuildBinOp(LLVMBuilderRef B, LLVMOpcode Op,
3884                             LLVMValueRef LHS, LLVMValueRef RHS,
3885                             const char *Name);
3886 LLVMValueRef LLVMBuildNeg(LLVMBuilderRef, LLVMValueRef V, const char *Name);
3887 LLVMValueRef LLVMBuildNSWNeg(LLVMBuilderRef B, LLVMValueRef V,
3888                              const char *Name);
3889 LLVMValueRef LLVMBuildNUWNeg(LLVMBuilderRef B, LLVMValueRef V,
3890                              const char *Name);
3891 LLVMValueRef LLVMBuildFNeg(LLVMBuilderRef, LLVMValueRef V, const char *Name);
3892 LLVMValueRef LLVMBuildNot(LLVMBuilderRef, LLVMValueRef V, const char *Name);
3893 
3894 /* Memory */
3895 LLVMValueRef LLVMBuildMalloc(LLVMBuilderRef, LLVMTypeRef Ty, const char *Name);
3896 LLVMValueRef LLVMBuildArrayMalloc(LLVMBuilderRef, LLVMTypeRef Ty,
3897                                   LLVMValueRef Val, const char *Name);
3898 
3899 /**
3900  * Creates and inserts a memset to the specified pointer and the
3901  * specified value.
3902  *
3903  * @see llvm::IRRBuilder::CreateMemSet()
3904  */
3905 LLVMValueRef LLVMBuildMemSet(LLVMBuilderRef B, LLVMValueRef Ptr,
3906                              LLVMValueRef Val, LLVMValueRef Len,
3907                              unsigned Align);
3908 /**
3909  * Creates and inserts a memcpy between the specified pointers.
3910  *
3911  * @see llvm::IRRBuilder::CreateMemCpy()
3912  */
3913 LLVMValueRef LLVMBuildMemCpy(LLVMBuilderRef B,
3914                              LLVMValueRef Dst, unsigned DstAlign,
3915                              LLVMValueRef Src, unsigned SrcAlign,
3916                              LLVMValueRef Size);
3917 /**
3918  * Creates and inserts a memmove between the specified pointers.
3919  *
3920  * @see llvm::IRRBuilder::CreateMemMove()
3921  */
3922 LLVMValueRef LLVMBuildMemMove(LLVMBuilderRef B,
3923                               LLVMValueRef Dst, unsigned DstAlign,
3924                               LLVMValueRef Src, unsigned SrcAlign,
3925                               LLVMValueRef Size);
3926 
3927 LLVMValueRef LLVMBuildAlloca(LLVMBuilderRef, LLVMTypeRef Ty, const char *Name);
3928 LLVMValueRef LLVMBuildArrayAlloca(LLVMBuilderRef, LLVMTypeRef Ty,
3929                                   LLVMValueRef Val, const char *Name);
3930 LLVMValueRef LLVMBuildFree(LLVMBuilderRef, LLVMValueRef PointerVal);
3931 LLVM_ATTRIBUTE_C_DEPRECATED(
3932     LLVMValueRef LLVMBuildLoad(LLVMBuilderRef, LLVMValueRef PointerVal,
3933                                const char *Name),
3934     "Use LLVMBuildLoad2 instead to support opaque pointers");
3935 LLVMValueRef LLVMBuildLoad2(LLVMBuilderRef, LLVMTypeRef Ty,
3936                             LLVMValueRef PointerVal, const char *Name);
3937 LLVMValueRef LLVMBuildStore(LLVMBuilderRef, LLVMValueRef Val, LLVMValueRef Ptr);
3938 LLVM_ATTRIBUTE_C_DEPRECATED(
3939     LLVMValueRef LLVMBuildGEP(LLVMBuilderRef B, LLVMValueRef Pointer,
3940                               LLVMValueRef *Indices, unsigned NumIndices,
3941                               const char *Name),
3942     "Use LLVMBuildGEP2 instead to support opaque pointers");
3943 LLVM_ATTRIBUTE_C_DEPRECATED(
3944     LLVMValueRef LLVMBuildInBoundsGEP(LLVMBuilderRef B, LLVMValueRef Pointer,
3945                                       LLVMValueRef *Indices,
3946                                       unsigned NumIndices, const char *Name),
3947     "Use LLVMBuildInBoundsGEP2 instead to support opaque pointers");
3948 LLVM_ATTRIBUTE_C_DEPRECATED(
3949     LLVMValueRef LLVMBuildStructGEP(LLVMBuilderRef B, LLVMValueRef Pointer,
3950                                     unsigned Idx, const char *Name),
3951     "Use LLVMBuildStructGEP2 instead to support opaque pointers");
3952 LLVMValueRef LLVMBuildGEP2(LLVMBuilderRef B, LLVMTypeRef Ty,
3953                            LLVMValueRef Pointer, LLVMValueRef *Indices,
3954                            unsigned NumIndices, const char *Name);
3955 LLVMValueRef LLVMBuildInBoundsGEP2(LLVMBuilderRef B, LLVMTypeRef Ty,
3956                                    LLVMValueRef Pointer, LLVMValueRef *Indices,
3957                                    unsigned NumIndices, const char *Name);
3958 LLVMValueRef LLVMBuildStructGEP2(LLVMBuilderRef B, LLVMTypeRef Ty,
3959                                  LLVMValueRef Pointer, unsigned Idx,
3960                                  const char *Name);
3961 LLVMValueRef LLVMBuildGlobalString(LLVMBuilderRef B, const char *Str,
3962                                    const char *Name);
3963 LLVMValueRef LLVMBuildGlobalStringPtr(LLVMBuilderRef B, const char *Str,
3964                                       const char *Name);
3965 LLVMBool LLVMGetVolatile(LLVMValueRef MemoryAccessInst);
3966 void LLVMSetVolatile(LLVMValueRef MemoryAccessInst, LLVMBool IsVolatile);
3967 LLVMBool LLVMGetWeak(LLVMValueRef CmpXchgInst);
3968 void LLVMSetWeak(LLVMValueRef CmpXchgInst, LLVMBool IsWeak);
3969 LLVMAtomicOrdering LLVMGetOrdering(LLVMValueRef MemoryAccessInst);
3970 void LLVMSetOrdering(LLVMValueRef MemoryAccessInst, LLVMAtomicOrdering Ordering);
3971 LLVMAtomicRMWBinOp LLVMGetAtomicRMWBinOp(LLVMValueRef AtomicRMWInst);
3972 void LLVMSetAtomicRMWBinOp(LLVMValueRef AtomicRMWInst, LLVMAtomicRMWBinOp BinOp);
3973 
3974 /* Casts */
3975 LLVMValueRef LLVMBuildTrunc(LLVMBuilderRef, LLVMValueRef Val,
3976                             LLVMTypeRef DestTy, const char *Name);
3977 LLVMValueRef LLVMBuildZExt(LLVMBuilderRef, LLVMValueRef Val,
3978                            LLVMTypeRef DestTy, const char *Name);
3979 LLVMValueRef LLVMBuildSExt(LLVMBuilderRef, LLVMValueRef Val,
3980                            LLVMTypeRef DestTy, const char *Name);
3981 LLVMValueRef LLVMBuildFPToUI(LLVMBuilderRef, LLVMValueRef Val,
3982                              LLVMTypeRef DestTy, const char *Name);
3983 LLVMValueRef LLVMBuildFPToSI(LLVMBuilderRef, LLVMValueRef Val,
3984                              LLVMTypeRef DestTy, const char *Name);
3985 LLVMValueRef LLVMBuildUIToFP(LLVMBuilderRef, LLVMValueRef Val,
3986                              LLVMTypeRef DestTy, const char *Name);
3987 LLVMValueRef LLVMBuildSIToFP(LLVMBuilderRef, LLVMValueRef Val,
3988                              LLVMTypeRef DestTy, const char *Name);
3989 LLVMValueRef LLVMBuildFPTrunc(LLVMBuilderRef, LLVMValueRef Val,
3990                               LLVMTypeRef DestTy, const char *Name);
3991 LLVMValueRef LLVMBuildFPExt(LLVMBuilderRef, LLVMValueRef Val,
3992                             LLVMTypeRef DestTy, const char *Name);
3993 LLVMValueRef LLVMBuildPtrToInt(LLVMBuilderRef, LLVMValueRef Val,
3994                                LLVMTypeRef DestTy, const char *Name);
3995 LLVMValueRef LLVMBuildIntToPtr(LLVMBuilderRef, LLVMValueRef Val,
3996                                LLVMTypeRef DestTy, const char *Name);
3997 LLVMValueRef LLVMBuildBitCast(LLVMBuilderRef, LLVMValueRef Val,
3998                               LLVMTypeRef DestTy, const char *Name);
3999 LLVMValueRef LLVMBuildAddrSpaceCast(LLVMBuilderRef, LLVMValueRef Val,
4000                                     LLVMTypeRef DestTy, const char *Name);
4001 LLVMValueRef LLVMBuildZExtOrBitCast(LLVMBuilderRef, LLVMValueRef Val,
4002                                     LLVMTypeRef DestTy, const char *Name);
4003 LLVMValueRef LLVMBuildSExtOrBitCast(LLVMBuilderRef, LLVMValueRef Val,
4004                                     LLVMTypeRef DestTy, const char *Name);
4005 LLVMValueRef LLVMBuildTruncOrBitCast(LLVMBuilderRef, LLVMValueRef Val,
4006                                      LLVMTypeRef DestTy, const char *Name);
4007 LLVMValueRef LLVMBuildCast(LLVMBuilderRef B, LLVMOpcode Op, LLVMValueRef Val,
4008                            LLVMTypeRef DestTy, const char *Name);
4009 LLVMValueRef LLVMBuildPointerCast(LLVMBuilderRef, LLVMValueRef Val,
4010                                   LLVMTypeRef DestTy, const char *Name);
4011 LLVMValueRef LLVMBuildIntCast2(LLVMBuilderRef, LLVMValueRef Val,
4012                                LLVMTypeRef DestTy, LLVMBool IsSigned,
4013                                const char *Name);
4014 LLVMValueRef LLVMBuildFPCast(LLVMBuilderRef, LLVMValueRef Val,
4015                              LLVMTypeRef DestTy, const char *Name);
4016 
4017 /** Deprecated: This cast is always signed. Use LLVMBuildIntCast2 instead. */
4018 LLVMValueRef LLVMBuildIntCast(LLVMBuilderRef, LLVMValueRef Val, /*Signed cast!*/
4019                               LLVMTypeRef DestTy, const char *Name);
4020 
4021 LLVMOpcode LLVMGetCastOpcode(LLVMValueRef Src, LLVMBool SrcIsSigned,
4022                              LLVMTypeRef DestTy, LLVMBool DestIsSigned);
4023 
4024 /* Comparisons */
4025 LLVMValueRef LLVMBuildICmp(LLVMBuilderRef, LLVMIntPredicate Op,
4026                            LLVMValueRef LHS, LLVMValueRef RHS,
4027                            const char *Name);
4028 LLVMValueRef LLVMBuildFCmp(LLVMBuilderRef, LLVMRealPredicate Op,
4029                            LLVMValueRef LHS, LLVMValueRef RHS,
4030                            const char *Name);
4031 
4032 /* Miscellaneous instructions */
4033 LLVMValueRef LLVMBuildPhi(LLVMBuilderRef, LLVMTypeRef Ty, const char *Name);
4034 LLVM_ATTRIBUTE_C_DEPRECATED(
4035     LLVMValueRef LLVMBuildCall(LLVMBuilderRef, LLVMValueRef Fn,
4036                                LLVMValueRef *Args, unsigned NumArgs,
4037                                const char *Name),
4038     "Use LLVMBuildCall2 instead to support opaque pointers");
4039 LLVMValueRef LLVMBuildCall2(LLVMBuilderRef, LLVMTypeRef, LLVMValueRef Fn,
4040                             LLVMValueRef *Args, unsigned NumArgs,
4041                             const char *Name);
4042 LLVMValueRef LLVMBuildSelect(LLVMBuilderRef, LLVMValueRef If,
4043                              LLVMValueRef Then, LLVMValueRef Else,
4044                              const char *Name);
4045 LLVMValueRef LLVMBuildVAArg(LLVMBuilderRef, LLVMValueRef List, LLVMTypeRef Ty,
4046                             const char *Name);
4047 LLVMValueRef LLVMBuildExtractElement(LLVMBuilderRef, LLVMValueRef VecVal,
4048                                      LLVMValueRef Index, const char *Name);
4049 LLVMValueRef LLVMBuildInsertElement(LLVMBuilderRef, LLVMValueRef VecVal,
4050                                     LLVMValueRef EltVal, LLVMValueRef Index,
4051                                     const char *Name);
4052 LLVMValueRef LLVMBuildShuffleVector(LLVMBuilderRef, LLVMValueRef V1,
4053                                     LLVMValueRef V2, LLVMValueRef Mask,
4054                                     const char *Name);
4055 LLVMValueRef LLVMBuildExtractValue(LLVMBuilderRef, LLVMValueRef AggVal,
4056                                    unsigned Index, const char *Name);
4057 LLVMValueRef LLVMBuildInsertValue(LLVMBuilderRef, LLVMValueRef AggVal,
4058                                   LLVMValueRef EltVal, unsigned Index,
4059                                   const char *Name);
4060 LLVMValueRef LLVMBuildFreeze(LLVMBuilderRef, LLVMValueRef Val,
4061                              const char *Name);
4062 
4063 LLVMValueRef LLVMBuildIsNull(LLVMBuilderRef, LLVMValueRef Val,
4064                              const char *Name);
4065 LLVMValueRef LLVMBuildIsNotNull(LLVMBuilderRef, LLVMValueRef Val,
4066                                 const char *Name);
4067 LLVM_ATTRIBUTE_C_DEPRECATED(
4068     LLVMValueRef LLVMBuildPtrDiff(LLVMBuilderRef, LLVMValueRef LHS,
4069                                   LLVMValueRef RHS, const char *Name),
4070     "Use LLVMBuildPtrDiff2 instead to support opaque pointers");
4071 LLVMValueRef LLVMBuildPtrDiff2(LLVMBuilderRef, LLVMTypeRef ElemTy,
4072                                LLVMValueRef LHS, LLVMValueRef RHS,
4073                                const char *Name);
4074 LLVMValueRef LLVMBuildFence(LLVMBuilderRef B, LLVMAtomicOrdering ordering,
4075                             LLVMBool singleThread, const char *Name);
4076 LLVMValueRef LLVMBuildAtomicRMW(LLVMBuilderRef B, LLVMAtomicRMWBinOp op,
4077                                 LLVMValueRef PTR, LLVMValueRef Val,
4078                                 LLVMAtomicOrdering ordering,
4079                                 LLVMBool singleThread);
4080 LLVMValueRef LLVMBuildAtomicCmpXchg(LLVMBuilderRef B, LLVMValueRef Ptr,
4081                                     LLVMValueRef Cmp, LLVMValueRef New,
4082                                     LLVMAtomicOrdering SuccessOrdering,
4083                                     LLVMAtomicOrdering FailureOrdering,
4084                                     LLVMBool SingleThread);
4085 
4086 /**
4087  * Get the number of elements in the mask of a ShuffleVector instruction.
4088  */
4089 unsigned LLVMGetNumMaskElements(LLVMValueRef ShuffleVectorInst);
4090 
4091 /**
4092  * \returns a constant that specifies that the result of a \c ShuffleVectorInst
4093  * is undefined.
4094  */
4095 int LLVMGetUndefMaskElem(void);
4096 
4097 /**
4098  * Get the mask value at position Elt in the mask of a ShuffleVector
4099  * instruction.
4100  *
4101  * \Returns the result of \c LLVMGetUndefMaskElem() if the mask value is undef
4102  * at that position.
4103  */
4104 int LLVMGetMaskValue(LLVMValueRef ShuffleVectorInst, unsigned Elt);
4105 
4106 LLVMBool LLVMIsAtomicSingleThread(LLVMValueRef AtomicInst);
4107 void LLVMSetAtomicSingleThread(LLVMValueRef AtomicInst, LLVMBool SingleThread);
4108 
4109 LLVMAtomicOrdering LLVMGetCmpXchgSuccessOrdering(LLVMValueRef CmpXchgInst);
4110 void LLVMSetCmpXchgSuccessOrdering(LLVMValueRef CmpXchgInst,
4111                                    LLVMAtomicOrdering Ordering);
4112 LLVMAtomicOrdering LLVMGetCmpXchgFailureOrdering(LLVMValueRef CmpXchgInst);
4113 void LLVMSetCmpXchgFailureOrdering(LLVMValueRef CmpXchgInst,
4114                                    LLVMAtomicOrdering Ordering);
4115 
4116 /**
4117  * @}
4118  */
4119 
4120 /**
4121  * @defgroup LLVMCCoreModuleProvider Module Providers
4122  *
4123  * @{
4124  */
4125 
4126 /**
4127  * Changes the type of M so it can be passed to FunctionPassManagers and the
4128  * JIT.  They take ModuleProviders for historical reasons.
4129  */
4130 LLVMModuleProviderRef
4131 LLVMCreateModuleProviderForExistingModule(LLVMModuleRef M);
4132 
4133 /**
4134  * Destroys the module M.
4135  */
4136 void LLVMDisposeModuleProvider(LLVMModuleProviderRef M);
4137 
4138 /**
4139  * @}
4140  */
4141 
4142 /**
4143  * @defgroup LLVMCCoreMemoryBuffers Memory Buffers
4144  *
4145  * @{
4146  */
4147 
4148 LLVMBool LLVMCreateMemoryBufferWithContentsOfFile(const char *Path,
4149                                                   LLVMMemoryBufferRef *OutMemBuf,
4150                                                   char **OutMessage);
4151 LLVMBool LLVMCreateMemoryBufferWithSTDIN(LLVMMemoryBufferRef *OutMemBuf,
4152                                          char **OutMessage);
4153 LLVMMemoryBufferRef LLVMCreateMemoryBufferWithMemoryRange(const char *InputData,
4154                                                           size_t InputDataLength,
4155                                                           const char *BufferName,
4156                                                           LLVMBool RequiresNullTerminator);
4157 LLVMMemoryBufferRef LLVMCreateMemoryBufferWithMemoryRangeCopy(const char *InputData,
4158                                                               size_t InputDataLength,
4159                                                               const char *BufferName);
4160 const char *LLVMGetBufferStart(LLVMMemoryBufferRef MemBuf);
4161 size_t LLVMGetBufferSize(LLVMMemoryBufferRef MemBuf);
4162 void LLVMDisposeMemoryBuffer(LLVMMemoryBufferRef MemBuf);
4163 
4164 /**
4165  * @}
4166  */
4167 
4168 /**
4169  * @defgroup LLVMCCorePassRegistry Pass Registry
4170  * @ingroup LLVMCCore
4171  *
4172  * @{
4173  */
4174 
4175 /** Return the global pass registry, for use with initialization functions.
4176     @see llvm::PassRegistry::getPassRegistry */
4177 LLVMPassRegistryRef LLVMGetGlobalPassRegistry(void);
4178 
4179 /**
4180  * @}
4181  */
4182 
4183 /**
4184  * @defgroup LLVMCCorePassManagers Pass Managers
4185  * @ingroup LLVMCCore
4186  *
4187  * @{
4188  */
4189 
4190 /** Constructs a new whole-module pass pipeline. This type of pipeline is
4191     suitable for link-time optimization and whole-module transformations.
4192     @see llvm::PassManager::PassManager */
4193 LLVMPassManagerRef LLVMCreatePassManager(void);
4194 
4195 /** Constructs a new function-by-function pass pipeline over the module
4196     provider. It does not take ownership of the module provider. This type of
4197     pipeline is suitable for code generation and JIT compilation tasks.
4198     @see llvm::FunctionPassManager::FunctionPassManager */
4199 LLVMPassManagerRef LLVMCreateFunctionPassManagerForModule(LLVMModuleRef M);
4200 
4201 /** Deprecated: Use LLVMCreateFunctionPassManagerForModule instead. */
4202 LLVMPassManagerRef LLVMCreateFunctionPassManager(LLVMModuleProviderRef MP);
4203 
4204 /** Initializes, executes on the provided module, and finalizes all of the
4205     passes scheduled in the pass manager. Returns 1 if any of the passes
4206     modified the module, 0 otherwise.
4207     @see llvm::PassManager::run(Module&) */
4208 LLVMBool LLVMRunPassManager(LLVMPassManagerRef PM, LLVMModuleRef M);
4209 
4210 /** Initializes all of the function passes scheduled in the function pass
4211     manager. Returns 1 if any of the passes modified the module, 0 otherwise.
4212     @see llvm::FunctionPassManager::doInitialization */
4213 LLVMBool LLVMInitializeFunctionPassManager(LLVMPassManagerRef FPM);
4214 
4215 /** Executes all of the function passes scheduled in the function pass manager
4216     on the provided function. Returns 1 if any of the passes modified the
4217     function, false otherwise.
4218     @see llvm::FunctionPassManager::run(Function&) */
4219 LLVMBool LLVMRunFunctionPassManager(LLVMPassManagerRef FPM, LLVMValueRef F);
4220 
4221 /** Finalizes all of the function passes scheduled in the function pass
4222     manager. Returns 1 if any of the passes modified the module, 0 otherwise.
4223     @see llvm::FunctionPassManager::doFinalization */
4224 LLVMBool LLVMFinalizeFunctionPassManager(LLVMPassManagerRef FPM);
4225 
4226 /** Frees the memory of a pass pipeline. For function pipelines, does not free
4227     the module provider.
4228     @see llvm::PassManagerBase::~PassManagerBase. */
4229 void LLVMDisposePassManager(LLVMPassManagerRef PM);
4230 
4231 /**
4232  * @}
4233  */
4234 
4235 /**
4236  * @defgroup LLVMCCoreThreading Threading
4237  *
4238  * Handle the structures needed to make LLVM safe for multithreading.
4239  *
4240  * @{
4241  */
4242 
4243 /** Deprecated: Multi-threading can only be enabled/disabled with the compile
4244     time define LLVM_ENABLE_THREADS.  This function always returns
4245     LLVMIsMultithreaded(). */
4246 LLVMBool LLVMStartMultithreaded(void);
4247 
4248 /** Deprecated: Multi-threading can only be enabled/disabled with the compile
4249     time define LLVM_ENABLE_THREADS. */
4250 void LLVMStopMultithreaded(void);
4251 
4252 /** Check whether LLVM is executing in thread-safe mode or not.
4253     @see llvm::llvm_is_multithreaded */
4254 LLVMBool LLVMIsMultithreaded(void);
4255 
4256 /**
4257  * @}
4258  */
4259 
4260 /**
4261  * @}
4262  */
4263 
4264 /**
4265  * @}
4266  */
4267 
4268 LLVM_C_EXTERN_C_END
4269 
4270 #endif /* LLVM_C_CORE_H */
4271