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llvm-mirror/lib/Transforms/IPO/IPO.cpp
Aditya Kumar e8a2c26b1b Hot cold splitting pass
Find cold blocks based on profile information (or optionally with static analysis).
Forward propagate profile information to all cold-blocks.
Outline a cold region.
Set calling conv and prof hint for the callsite of the outlined function.

Worked in collaboration with: Sebastian Pop <s.pop@samsung.com>
Differential Revision: https://reviews.llvm.org/D50658

llvm-svn: 341669
2018-09-07 15:03:49 +00:00

131 lines
4.4 KiB
C++

//===-- IPO.cpp -----------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the common infrastructure (including C bindings) for
// libLLVMIPO.a, which implements several transformations over the LLVM
// intermediate representation.
//
//===----------------------------------------------------------------------===//
#include "llvm-c/Transforms/IPO.h"
#include "llvm-c/Initialization.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/InitializePasses.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/IPO/AlwaysInliner.h"
#include "llvm/Transforms/IPO/FunctionAttrs.h"
using namespace llvm;
void llvm::initializeIPO(PassRegistry &Registry) {
initializeArgPromotionPass(Registry);
initializeCalledValuePropagationLegacyPassPass(Registry);
initializeConstantMergeLegacyPassPass(Registry);
initializeCrossDSOCFIPass(Registry);
initializeDAEPass(Registry);
initializeDAHPass(Registry);
initializeForceFunctionAttrsLegacyPassPass(Registry);
initializeGlobalDCELegacyPassPass(Registry);
initializeGlobalOptLegacyPassPass(Registry);
initializeGlobalSplitPass(Registry);
initializeHotColdSplittingLegacyPassPass(Registry);
initializeIPCPPass(Registry);
initializeAlwaysInlinerLegacyPassPass(Registry);
initializeSimpleInlinerPass(Registry);
initializeInferFunctionAttrsLegacyPassPass(Registry);
initializeInternalizeLegacyPassPass(Registry);
initializeLoopExtractorPass(Registry);
initializeBlockExtractorPass(Registry);
initializeSingleLoopExtractorPass(Registry);
initializeLowerTypeTestsPass(Registry);
initializeMergeFunctionsPass(Registry);
initializePartialInlinerLegacyPassPass(Registry);
initializePostOrderFunctionAttrsLegacyPassPass(Registry);
initializeReversePostOrderFunctionAttrsLegacyPassPass(Registry);
initializePruneEHPass(Registry);
initializeIPSCCPLegacyPassPass(Registry);
initializeStripDeadPrototypesLegacyPassPass(Registry);
initializeStripSymbolsPass(Registry);
initializeStripDebugDeclarePass(Registry);
initializeStripDeadDebugInfoPass(Registry);
initializeStripNonDebugSymbolsPass(Registry);
initializeBarrierNoopPass(Registry);
initializeEliminateAvailableExternallyLegacyPassPass(Registry);
initializeSampleProfileLoaderLegacyPassPass(Registry);
initializeFunctionImportLegacyPassPass(Registry);
initializeWholeProgramDevirtPass(Registry);
}
void LLVMInitializeIPO(LLVMPassRegistryRef R) {
initializeIPO(*unwrap(R));
}
void LLVMAddArgumentPromotionPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createArgumentPromotionPass());
}
void LLVMAddCalledValuePropagationPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createCalledValuePropagationPass());
}
void LLVMAddConstantMergePass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createConstantMergePass());
}
void LLVMAddDeadArgEliminationPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createDeadArgEliminationPass());
}
void LLVMAddFunctionAttrsPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createPostOrderFunctionAttrsLegacyPass());
}
void LLVMAddFunctionInliningPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createFunctionInliningPass());
}
void LLVMAddAlwaysInlinerPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(llvm::createAlwaysInlinerLegacyPass());
}
void LLVMAddGlobalDCEPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createGlobalDCEPass());
}
void LLVMAddGlobalOptimizerPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createGlobalOptimizerPass());
}
void LLVMAddIPConstantPropagationPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createIPConstantPropagationPass());
}
void LLVMAddPruneEHPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createPruneEHPass());
}
void LLVMAddIPSCCPPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createIPSCCPPass());
}
void LLVMAddInternalizePass(LLVMPassManagerRef PM, unsigned AllButMain) {
auto PreserveMain = [=](const GlobalValue &GV) {
return AllButMain && GV.getName() == "main";
};
unwrap(PM)->add(createInternalizePass(PreserveMain));
}
void LLVMAddStripDeadPrototypesPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createStripDeadPrototypesPass());
}
void LLVMAddStripSymbolsPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createStripSymbolsPass());
}