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cb58558c2f
This patch adds a new pass for attaching !callees metadata to indirect call sites. The pass propagates values to call sites by performing an IPSCCP-like analysis using the generic sparse propagation solver. For indirect call sites having a small set of possible callees, the attached metadata indicates what those callees are. The metadata can be used to facilitate optimizations like intersecting the function attributes of the possible callees, refining the call graph, performing indirect call promotion, etc. Differential Revision: https://reviews.llvm.org/D37355 llvm-svn: 316576
129 lines
4.3 KiB
C++
129 lines
4.3 KiB
C++
//===-- IPO.cpp -----------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the common infrastructure (including C bindings) for
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// libLLVMIPO.a, which implements several transformations over the LLVM
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// intermediate representation.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm-c/Transforms/IPO.h"
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#include "llvm-c/Initialization.h"
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#include "llvm/IR/LegacyPassManager.h"
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#include "llvm/InitializePasses.h"
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#include "llvm/Transforms/IPO.h"
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#include "llvm/Transforms/IPO/AlwaysInliner.h"
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#include "llvm/Transforms/IPO/FunctionAttrs.h"
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using namespace llvm;
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void llvm::initializeIPO(PassRegistry &Registry) {
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initializeArgPromotionPass(Registry);
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initializeCalledValuePropagationLegacyPassPass(Registry);
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initializeConstantMergeLegacyPassPass(Registry);
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initializeCrossDSOCFIPass(Registry);
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initializeDAEPass(Registry);
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initializeDAHPass(Registry);
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initializeForceFunctionAttrsLegacyPassPass(Registry);
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initializeGlobalDCELegacyPassPass(Registry);
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initializeGlobalOptLegacyPassPass(Registry);
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initializeGlobalSplitPass(Registry);
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initializeIPCPPass(Registry);
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initializeAlwaysInlinerLegacyPassPass(Registry);
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initializeSimpleInlinerPass(Registry);
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initializeInferFunctionAttrsLegacyPassPass(Registry);
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initializeInternalizeLegacyPassPass(Registry);
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initializeLoopExtractorPass(Registry);
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initializeBlockExtractorPassPass(Registry);
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initializeSingleLoopExtractorPass(Registry);
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initializeLowerTypeTestsPass(Registry);
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initializeMergeFunctionsPass(Registry);
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initializePartialInlinerLegacyPassPass(Registry);
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initializePostOrderFunctionAttrsLegacyPassPass(Registry);
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initializeReversePostOrderFunctionAttrsLegacyPassPass(Registry);
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initializePruneEHPass(Registry);
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initializeStripDeadPrototypesLegacyPassPass(Registry);
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initializeStripSymbolsPass(Registry);
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initializeStripDebugDeclarePass(Registry);
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initializeStripDeadDebugInfoPass(Registry);
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initializeStripNonDebugSymbolsPass(Registry);
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initializeBarrierNoopPass(Registry);
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initializeEliminateAvailableExternallyLegacyPassPass(Registry);
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initializeSampleProfileLoaderLegacyPassPass(Registry);
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initializeFunctionImportLegacyPassPass(Registry);
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initializeWholeProgramDevirtPass(Registry);
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}
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void LLVMInitializeIPO(LLVMPassRegistryRef R) {
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initializeIPO(*unwrap(R));
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}
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void LLVMAddArgumentPromotionPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createArgumentPromotionPass());
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}
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void LLVMAddCalledValuePropagationPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createCalledValuePropagationPass());
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}
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void LLVMAddConstantMergePass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createConstantMergePass());
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}
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void LLVMAddDeadArgEliminationPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createDeadArgEliminationPass());
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}
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void LLVMAddFunctionAttrsPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createPostOrderFunctionAttrsLegacyPass());
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}
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void LLVMAddFunctionInliningPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createFunctionInliningPass());
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}
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void LLVMAddAlwaysInlinerPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(llvm::createAlwaysInlinerLegacyPass());
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}
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void LLVMAddGlobalDCEPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createGlobalDCEPass());
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}
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void LLVMAddGlobalOptimizerPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createGlobalOptimizerPass());
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}
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void LLVMAddIPConstantPropagationPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createIPConstantPropagationPass());
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}
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void LLVMAddPruneEHPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createPruneEHPass());
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}
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void LLVMAddIPSCCPPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createIPSCCPPass());
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}
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void LLVMAddInternalizePass(LLVMPassManagerRef PM, unsigned AllButMain) {
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auto PreserveMain = [=](const GlobalValue &GV) {
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return AllButMain && GV.getName() == "main";
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};
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unwrap(PM)->add(createInternalizePass(PreserveMain));
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}
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void LLVMAddStripDeadPrototypesPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createStripDeadPrototypesPass());
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}
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void LLVMAddStripSymbolsPass(LLVMPassManagerRef PM) {
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unwrap(PM)->add(createStripSymbolsPass());
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}
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