1 //===-- Scalar.cpp --------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file implements common infrastructure for libLLVMScalarOpts.a, which
11 // implements several scalar transformations over the LLVM intermediate
12 // representation, including the C bindings for that library.
13 //
14 //===----------------------------------------------------------------------===//
15 
16 #include "llvm/Transforms/Scalar.h"
17 #include "llvm-c/Initialization.h"
18 #include "llvm-c/Transforms/Scalar.h"
19 #include "llvm/Analysis/BasicAliasAnalysis.h"
20 #include "llvm/Analysis/Passes.h"
21 #include "llvm/Analysis/ScopedNoAliasAA.h"
22 #include "llvm/Analysis/TypeBasedAliasAnalysis.h"
23 #include "llvm/IR/DataLayout.h"
24 #include "llvm/IR/LegacyPassManager.h"
25 #include "llvm/IR/Verifier.h"
26 #include "llvm/InitializePasses.h"
27 #include "llvm/Transforms/Scalar/GVN.h"
28 #include "llvm/Transforms/Scalar/Scalarizer.h"
29 #include "llvm/Transforms/Scalar/SimpleLoopUnswitch.h"
30 #include "llvm/Transforms/Utils/UnifyFunctionExitNodes.h"
31 
32 using namespace llvm;
33 
34 /// initializeScalarOptsPasses - Initialize all passes linked into the
35 /// ScalarOpts library.
36 void llvm::initializeScalarOpts(PassRegistry &Registry) {
37   initializeADCELegacyPassPass(Registry);
38   initializeBDCELegacyPassPass(Registry);
39   initializeAlignmentFromAssumptionsPass(Registry);
40   initializeCallSiteSplittingLegacyPassPass(Registry);
41   initializeConstantHoistingLegacyPassPass(Registry);
42   initializeConstantPropagationPass(Registry);
43   initializeCorrelatedValuePropagationPass(Registry);
44   initializeDCELegacyPassPass(Registry);
45   initializeDeadInstEliminationPass(Registry);
46   initializeDivRemPairsLegacyPassPass(Registry);
47   initializeScalarizerLegacyPassPass(Registry);
48   initializeDSELegacyPassPass(Registry);
49   initializeGuardWideningLegacyPassPass(Registry);
50   initializeLoopGuardWideningLegacyPassPass(Registry);
51   initializeGVNLegacyPassPass(Registry);
52   initializeNewGVNLegacyPassPass(Registry);
53   initializeEarlyCSELegacyPassPass(Registry);
54   initializeEarlyCSEMemSSALegacyPassPass(Registry);
55   initializeMakeGuardsExplicitLegacyPassPass(Registry);
56   initializeGVNHoistLegacyPassPass(Registry);
57   initializeGVNSinkLegacyPassPass(Registry);
58   initializeFlattenCFGPassPass(Registry);
59   initializeIRCELegacyPassPass(Registry);
60   initializeIndVarSimplifyLegacyPassPass(Registry);
61   initializeInferAddressSpacesPass(Registry);
62   initializeInstSimplifyLegacyPassPass(Registry);
63   initializeJumpThreadingPass(Registry);
64   initializeLegacyLICMPassPass(Registry);
65   initializeLegacyLoopSinkPassPass(Registry);
66   initializeLoopDataPrefetchLegacyPassPass(Registry);
67   initializeLoopDeletionLegacyPassPass(Registry);
68   initializeLoopAccessLegacyAnalysisPass(Registry);
69   initializeLoopInstSimplifyLegacyPassPass(Registry);
70   initializeLoopInterchangePass(Registry);
71   initializeLoopPredicationLegacyPassPass(Registry);
72   initializeLoopRotateLegacyPassPass(Registry);
73   initializeLoopStrengthReducePass(Registry);
74   initializeLoopRerollPass(Registry);
75   initializeLoopUnrollPass(Registry);
76   initializeLoopUnrollAndJamPass(Registry);
77   initializeLoopUnswitchPass(Registry);
78   initializeWarnMissedTransformationsLegacyPass(Registry);
79   initializeLoopVersioningLICMPass(Registry);
80   initializeLoopIdiomRecognizeLegacyPassPass(Registry);
81   initializeLowerAtomicLegacyPassPass(Registry);
82   initializeLowerExpectIntrinsicPass(Registry);
83   initializeLowerGuardIntrinsicLegacyPassPass(Registry);
84   initializeMemCpyOptLegacyPassPass(Registry);
85   initializeMergeICmpsPass(Registry);
86   initializeMergedLoadStoreMotionLegacyPassPass(Registry);
87   initializeNaryReassociateLegacyPassPass(Registry);
88   initializePartiallyInlineLibCallsLegacyPassPass(Registry);
89   initializeReassociateLegacyPassPass(Registry);
90   initializeRegToMemPass(Registry);
91   initializeRewriteStatepointsForGCLegacyPassPass(Registry);
92   initializeSCCPLegacyPassPass(Registry);
93   initializeSROALegacyPassPass(Registry);
94   initializeCFGSimplifyPassPass(Registry);
95   initializeStructurizeCFGPass(Registry);
96   initializeSimpleLoopUnswitchLegacyPassPass(Registry);
97   initializeSinkingLegacyPassPass(Registry);
98   initializeTailCallElimPass(Registry);
99   initializeSeparateConstOffsetFromGEPPass(Registry);
100   initializeSpeculativeExecutionLegacyPassPass(Registry);
101   initializeStraightLineStrengthReducePass(Registry);
102   initializePlaceBackedgeSafepointsImplPass(Registry);
103   initializePlaceSafepointsPass(Registry);
104   initializeFloat2IntLegacyPassPass(Registry);
105   initializeLoopDistributeLegacyPass(Registry);
106   initializeLoopLoadEliminationPass(Registry);
107   initializeLoopSimplifyCFGLegacyPassPass(Registry);
108   initializeLoopVersioningPassPass(Registry);
109   initializeEntryExitInstrumenterPass(Registry);
110   initializePostInlineEntryExitInstrumenterPass(Registry);
111 }
112 
113 void LLVMAddLoopSimplifyCFGPass(LLVMPassManagerRef PM) {
114   unwrap(PM)->add(createLoopSimplifyCFGPass());
115 }
116 
117 void LLVMInitializeScalarOpts(LLVMPassRegistryRef R) {
118   initializeScalarOpts(*unwrap(R));
119 }
120 
121 void LLVMAddAggressiveDCEPass(LLVMPassManagerRef PM) {
122   unwrap(PM)->add(createAggressiveDCEPass());
123 }
124 
125 void LLVMAddBitTrackingDCEPass(LLVMPassManagerRef PM) {
126   unwrap(PM)->add(createBitTrackingDCEPass());
127 }
128 
129 void LLVMAddAlignmentFromAssumptionsPass(LLVMPassManagerRef PM) {
130   unwrap(PM)->add(createAlignmentFromAssumptionsPass());
131 }
132 
133 void LLVMAddCFGSimplificationPass(LLVMPassManagerRef PM) {
134   unwrap(PM)->add(createCFGSimplificationPass(1, false, false, true));
135 }
136 
137 void LLVMAddDeadStoreEliminationPass(LLVMPassManagerRef PM) {
138   unwrap(PM)->add(createDeadStoreEliminationPass());
139 }
140 
141 void LLVMAddScalarizerPass(LLVMPassManagerRef PM) {
142   unwrap(PM)->add(createScalarizerPass());
143 }
144 
145 void LLVMAddGVNPass(LLVMPassManagerRef PM) {
146   unwrap(PM)->add(createGVNPass());
147 }
148 
149 void LLVMAddNewGVNPass(LLVMPassManagerRef PM) {
150   unwrap(PM)->add(createNewGVNPass());
151 }
152 
153 void LLVMAddMergedLoadStoreMotionPass(LLVMPassManagerRef PM) {
154   unwrap(PM)->add(createMergedLoadStoreMotionPass());
155 }
156 
157 void LLVMAddIndVarSimplifyPass(LLVMPassManagerRef PM) {
158   unwrap(PM)->add(createIndVarSimplifyPass());
159 }
160 
161 void LLVMAddJumpThreadingPass(LLVMPassManagerRef PM) {
162   unwrap(PM)->add(createJumpThreadingPass());
163 }
164 
165 void LLVMAddLoopSinkPass(LLVMPassManagerRef PM) {
166   unwrap(PM)->add(createLoopSinkPass());
167 }
168 
169 void LLVMAddLICMPass(LLVMPassManagerRef PM) {
170   unwrap(PM)->add(createLICMPass());
171 }
172 
173 void LLVMAddLoopDeletionPass(LLVMPassManagerRef PM) {
174   unwrap(PM)->add(createLoopDeletionPass());
175 }
176 
177 void LLVMAddLoopIdiomPass(LLVMPassManagerRef PM) {
178   unwrap(PM)->add(createLoopIdiomPass());
179 }
180 
181 void LLVMAddLoopRotatePass(LLVMPassManagerRef PM) {
182   unwrap(PM)->add(createLoopRotatePass());
183 }
184 
185 void LLVMAddLoopRerollPass(LLVMPassManagerRef PM) {
186   unwrap(PM)->add(createLoopRerollPass());
187 }
188 
189 void LLVMAddLoopUnrollPass(LLVMPassManagerRef PM) {
190   unwrap(PM)->add(createLoopUnrollPass());
191 }
192 
193 void LLVMAddLoopUnrollAndJamPass(LLVMPassManagerRef PM) {
194   unwrap(PM)->add(createLoopUnrollAndJamPass());
195 }
196 
197 void LLVMAddLoopUnswitchPass(LLVMPassManagerRef PM) {
198   unwrap(PM)->add(createLoopUnswitchPass());
199 }
200 
201 void LLVMAddLowerAtomicPass(LLVMPassManagerRef PM) {
202   unwrap(PM)->add(createLowerAtomicPass());
203 }
204 
205 void LLVMAddMemCpyOptPass(LLVMPassManagerRef PM) {
206   unwrap(PM)->add(createMemCpyOptPass());
207 }
208 
209 void LLVMAddPartiallyInlineLibCallsPass(LLVMPassManagerRef PM) {
210   unwrap(PM)->add(createPartiallyInlineLibCallsPass());
211 }
212 
213 void LLVMAddReassociatePass(LLVMPassManagerRef PM) {
214   unwrap(PM)->add(createReassociatePass());
215 }
216 
217 void LLVMAddSCCPPass(LLVMPassManagerRef PM) {
218   unwrap(PM)->add(createSCCPPass());
219 }
220 
221 void LLVMAddScalarReplAggregatesPass(LLVMPassManagerRef PM) {
222   unwrap(PM)->add(createSROAPass());
223 }
224 
225 void LLVMAddScalarReplAggregatesPassSSA(LLVMPassManagerRef PM) {
226   unwrap(PM)->add(createSROAPass());
227 }
228 
229 void LLVMAddScalarReplAggregatesPassWithThreshold(LLVMPassManagerRef PM,
230                                                   int Threshold) {
231   unwrap(PM)->add(createSROAPass());
232 }
233 
234 void LLVMAddSimplifyLibCallsPass(LLVMPassManagerRef PM) {
235   // NOTE: The simplify-libcalls pass has been removed.
236 }
237 
238 void LLVMAddTailCallEliminationPass(LLVMPassManagerRef PM) {
239   unwrap(PM)->add(createTailCallEliminationPass());
240 }
241 
242 void LLVMAddConstantPropagationPass(LLVMPassManagerRef PM) {
243   unwrap(PM)->add(createConstantPropagationPass());
244 }
245 
246 void LLVMAddDemoteMemoryToRegisterPass(LLVMPassManagerRef PM) {
247   unwrap(PM)->add(createDemoteRegisterToMemoryPass());
248 }
249 
250 void LLVMAddVerifierPass(LLVMPassManagerRef PM) {
251   unwrap(PM)->add(createVerifierPass());
252 }
253 
254 void LLVMAddCorrelatedValuePropagationPass(LLVMPassManagerRef PM) {
255   unwrap(PM)->add(createCorrelatedValuePropagationPass());
256 }
257 
258 void LLVMAddEarlyCSEPass(LLVMPassManagerRef PM) {
259   unwrap(PM)->add(createEarlyCSEPass(false/*=UseMemorySSA*/));
260 }
261 
262 void LLVMAddEarlyCSEMemSSAPass(LLVMPassManagerRef PM) {
263   unwrap(PM)->add(createEarlyCSEPass(true/*=UseMemorySSA*/));
264 }
265 
266 void LLVMAddGVNHoistLegacyPass(LLVMPassManagerRef PM) {
267   unwrap(PM)->add(createGVNHoistPass());
268 }
269 
270 void LLVMAddTypeBasedAliasAnalysisPass(LLVMPassManagerRef PM) {
271   unwrap(PM)->add(createTypeBasedAAWrapperPass());
272 }
273 
274 void LLVMAddScopedNoAliasAAPass(LLVMPassManagerRef PM) {
275   unwrap(PM)->add(createScopedNoAliasAAWrapperPass());
276 }
277 
278 void LLVMAddBasicAliasAnalysisPass(LLVMPassManagerRef PM) {
279   unwrap(PM)->add(createBasicAAWrapperPass());
280 }
281 
282 void LLVMAddLowerExpectIntrinsicPass(LLVMPassManagerRef PM) {
283   unwrap(PM)->add(createLowerExpectIntrinsicPass());
284 }
285 
286 void LLVMAddUnifyFunctionExitNodesPass(LLVMPassManagerRef PM) {
287   unwrap(PM)->add(createUnifyFunctionExitNodesPass());
288 }
289