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   initializeAnnotation2MetadataLegacyPass(Registry);
27   initializeCalledValuePropagationLegacyPassPass(Registry);
28   initializeConstantMergeLegacyPassPass(Registry);
29   initializeCrossDSOCFIPass(Registry);
30   initializeDAEPass(Registry);
31   initializeDAHPass(Registry);
32   initializeForceFunctionAttrsLegacyPassPass(Registry);
33   initializeGlobalDCELegacyPassPass(Registry);
34   initializeGlobalOptLegacyPassPass(Registry);
35   initializeGlobalSplitPass(Registry);
36   initializeHotColdSplittingLegacyPassPass(Registry);
37   initializeIROutlinerLegacyPassPass(Registry);
38   initializeAlwaysInlinerLegacyPassPass(Registry);
39   initializeSimpleInlinerPass(Registry);
40   initializeInferFunctionAttrsLegacyPassPass(Registry);
41   initializeInternalizeLegacyPassPass(Registry);
42   initializeLoopExtractorLegacyPassPass(Registry);
43   initializeSingleLoopExtractorPass(Registry);
44   initializeMergeFunctionsLegacyPassPass(Registry);
45   initializePartialInlinerLegacyPassPass(Registry);
46   initializeAttributorLegacyPassPass(Registry);
47   initializeAttributorCGSCCLegacyPassPass(Registry);
48   initializePostOrderFunctionAttrsLegacyPassPass(Registry);
49   initializeReversePostOrderFunctionAttrsLegacyPassPass(Registry);
50   initializeIPSCCPLegacyPassPass(Registry);
51   initializeStripDeadPrototypesLegacyPassPass(Registry);
52   initializeStripSymbolsPass(Registry);
53   initializeStripDebugDeclarePass(Registry);
54   initializeStripDeadDebugInfoPass(Registry);
55   initializeStripNonDebugSymbolsPass(Registry);
56   initializeBarrierNoopPass(Registry);
57   initializeEliminateAvailableExternallyLegacyPassPass(Registry);
58 }
59 
60 void LLVMInitializeIPO(LLVMPassRegistryRef R) {
61   initializeIPO(*unwrap(R));
62 }
63 
64 void LLVMAddCalledValuePropagationPass(LLVMPassManagerRef PM) {
65   unwrap(PM)->add(createCalledValuePropagationPass());
66 }
67 
68 void LLVMAddConstantMergePass(LLVMPassManagerRef PM) {
69   unwrap(PM)->add(createConstantMergePass());
70 }
71 
72 void LLVMAddDeadArgEliminationPass(LLVMPassManagerRef PM) {
73   unwrap(PM)->add(createDeadArgEliminationPass());
74 }
75 
76 void LLVMAddFunctionAttrsPass(LLVMPassManagerRef PM) {
77   unwrap(PM)->add(createPostOrderFunctionAttrsLegacyPass());
78 }
79 
80 void LLVMAddFunctionInliningPass(LLVMPassManagerRef PM) {
81   unwrap(PM)->add(createFunctionInliningPass());
82 }
83 
84 void LLVMAddAlwaysInlinerPass(LLVMPassManagerRef PM) {
85   unwrap(PM)->add(llvm::createAlwaysInlinerLegacyPass());
86 }
87 
88 void LLVMAddGlobalDCEPass(LLVMPassManagerRef PM) {
89   unwrap(PM)->add(createGlobalDCEPass());
90 }
91 
92 void LLVMAddGlobalOptimizerPass(LLVMPassManagerRef PM) {
93   unwrap(PM)->add(createGlobalOptimizerPass());
94 }
95 
96 void LLVMAddIPSCCPPass(LLVMPassManagerRef PM) {
97   unwrap(PM)->add(createIPSCCPPass());
98 }
99 
100 void LLVMAddMergeFunctionsPass(LLVMPassManagerRef PM) {
101   unwrap(PM)->add(createMergeFunctionsPass());
102 }
103 
104 void LLVMAddInternalizePass(LLVMPassManagerRef PM, unsigned AllButMain) {
105   auto PreserveMain = [=](const GlobalValue &GV) {
106     return AllButMain && GV.getName() == "main";
107   };
108   unwrap(PM)->add(createInternalizePass(PreserveMain));
109 }
110 
111 void LLVMAddInternalizePassWithMustPreservePredicate(
112     LLVMPassManagerRef PM,
113     void *Context,
114     LLVMBool (*Pred)(LLVMValueRef, void *)) {
115   unwrap(PM)->add(createInternalizePass([=](const GlobalValue &GV) {
116     return Pred(wrap(&GV), Context) == 0 ? false : true;
117   }));
118 }
119 
120 void LLVMAddStripDeadPrototypesPass(LLVMPassManagerRef PM) {
121   unwrap(PM)->add(createStripDeadPrototypesPass());
122 }
123 
124 void LLVMAddStripSymbolsPass(LLVMPassManagerRef PM) {
125   unwrap(PM)->add(createStripSymbolsPass());
126 }
127