1 //===-- IPO.cpp -----------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements the common infrastructure (including C bindings) for
10 // libLLVMIPO.a, which implements several transformations over the LLVM
11 // intermediate representation.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #include "llvm-c/Transforms/IPO.h"
16 #include "llvm-c/Initialization.h"
17 #include "llvm/IR/LegacyPassManager.h"
18 #include "llvm/InitializePasses.h"
19 #include "llvm/Transforms/IPO.h"
20 #include "llvm/Transforms/IPO/AlwaysInliner.h"
21 #include "llvm/Transforms/IPO/FunctionAttrs.h"
22 
23 using namespace llvm;
24 
25 void llvm::initializeIPO(PassRegistry &Registry) {
26   initializeOpenMPOptCGSCCLegacyPassPass(Registry);
27   initializeAnnotation2MetadataLegacyPass(Registry);
28   initializeCalledValuePropagationLegacyPassPass(Registry);
29   initializeConstantMergeLegacyPassPass(Registry);
30   initializeCrossDSOCFIPass(Registry);
31   initializeDAEPass(Registry);
32   initializeDAHPass(Registry);
33   initializeForceFunctionAttrsLegacyPassPass(Registry);
34   initializeFunctionSpecializationLegacyPassPass(Registry);
35   initializeGlobalDCELegacyPassPass(Registry);
36   initializeGlobalOptLegacyPassPass(Registry);
37   initializeGlobalSplitPass(Registry);
38   initializeHotColdSplittingLegacyPassPass(Registry);
39   initializeIROutlinerLegacyPassPass(Registry);
40   initializeAlwaysInlinerLegacyPassPass(Registry);
41   initializeSimpleInlinerPass(Registry);
42   initializeInferFunctionAttrsLegacyPassPass(Registry);
43   initializeInternalizeLegacyPassPass(Registry);
44   initializeLoopExtractorLegacyPassPass(Registry);
45   initializeBlockExtractorLegacyPassPass(Registry);
46   initializeSingleLoopExtractorPass(Registry);
47   initializeMergeFunctionsLegacyPassPass(Registry);
48   initializePartialInlinerLegacyPassPass(Registry);
49   initializeAttributorLegacyPassPass(Registry);
50   initializeAttributorCGSCCLegacyPassPass(Registry);
51   initializePostOrderFunctionAttrsLegacyPassPass(Registry);
52   initializeReversePostOrderFunctionAttrsLegacyPassPass(Registry);
53   initializePruneEHPass(Registry);
54   initializeIPSCCPLegacyPassPass(Registry);
55   initializeStripDeadPrototypesLegacyPassPass(Registry);
56   initializeStripSymbolsPass(Registry);
57   initializeStripDebugDeclarePass(Registry);
58   initializeStripDeadDebugInfoPass(Registry);
59   initializeStripNonDebugSymbolsPass(Registry);
60   initializeBarrierNoopPass(Registry);
61   initializeEliminateAvailableExternallyLegacyPassPass(Registry);
62   initializeFunctionImportLegacyPassPass(Registry);
63   initializeWholeProgramDevirtPass(Registry);
64 }
65 
66 void LLVMInitializeIPO(LLVMPassRegistryRef R) {
67   initializeIPO(*unwrap(R));
68 }
69 
70 void LLVMAddCalledValuePropagationPass(LLVMPassManagerRef PM) {
71   unwrap(PM)->add(createCalledValuePropagationPass());
72 }
73 
74 void LLVMAddConstantMergePass(LLVMPassManagerRef PM) {
75   unwrap(PM)->add(createConstantMergePass());
76 }
77 
78 void LLVMAddDeadArgEliminationPass(LLVMPassManagerRef PM) {
79   unwrap(PM)->add(createDeadArgEliminationPass());
80 }
81 
82 void LLVMAddFunctionAttrsPass(LLVMPassManagerRef PM) {
83   unwrap(PM)->add(createPostOrderFunctionAttrsLegacyPass());
84 }
85 
86 void LLVMAddFunctionInliningPass(LLVMPassManagerRef PM) {
87   unwrap(PM)->add(createFunctionInliningPass());
88 }
89 
90 void LLVMAddAlwaysInlinerPass(LLVMPassManagerRef PM) {
91   unwrap(PM)->add(llvm::createAlwaysInlinerLegacyPass());
92 }
93 
94 void LLVMAddGlobalDCEPass(LLVMPassManagerRef PM) {
95   unwrap(PM)->add(createGlobalDCEPass());
96 }
97 
98 void LLVMAddGlobalOptimizerPass(LLVMPassManagerRef PM) {
99   unwrap(PM)->add(createGlobalOptimizerPass());
100 }
101 
102 void LLVMAddPruneEHPass(LLVMPassManagerRef PM) {
103   unwrap(PM)->add(createPruneEHPass());
104 }
105 
106 void LLVMAddIPSCCPPass(LLVMPassManagerRef PM) {
107   unwrap(PM)->add(createIPSCCPPass());
108 }
109 
110 void LLVMAddMergeFunctionsPass(LLVMPassManagerRef PM) {
111   unwrap(PM)->add(createMergeFunctionsPass());
112 }
113 
114 void LLVMAddInternalizePass(LLVMPassManagerRef PM, unsigned AllButMain) {
115   auto PreserveMain = [=](const GlobalValue &GV) {
116     return AllButMain && GV.getName() == "main";
117   };
118   unwrap(PM)->add(createInternalizePass(PreserveMain));
119 }
120 
121 void LLVMAddInternalizePassWithMustPreservePredicate(
122     LLVMPassManagerRef PM,
123     void *Context,
124     LLVMBool (*Pred)(LLVMValueRef, void *)) {
125   unwrap(PM)->add(createInternalizePass([=](const GlobalValue &GV) {
126     return Pred(wrap(&GV), Context) == 0 ? false : true;
127   }));
128 }
129 
130 void LLVMAddStripDeadPrototypesPass(LLVMPassManagerRef PM) {
131   unwrap(PM)->add(createStripDeadPrototypesPass());
132 }
133 
134 void LLVMAddStripSymbolsPass(LLVMPassManagerRef PM) {
135   unwrap(PM)->add(createStripSymbolsPass());
136 }
137