mirror of
https://github.com/capstone-engine/llvm-capstone.git
synced 2025-02-16 07:49:43 +00:00
2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
142 lines
4.8 KiB
C++
142 lines
4.8 KiB
C++
//===- CodegenCleanup.cpp -------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "polly/CodeGen/CodegenCleanup.h"
|
|
|
|
#include "llvm/Analysis/ScopedNoAliasAA.h"
|
|
#include "llvm/Analysis/TypeBasedAliasAnalysis.h"
|
|
#include "llvm/IR/Function.h"
|
|
#include "llvm/IR/LegacyPassManager.h"
|
|
#include "llvm/PassInfo.h"
|
|
#include "llvm/PassRegistry.h"
|
|
#include "llvm/PassSupport.h"
|
|
#include "llvm/Support/Debug.h"
|
|
#include "llvm/Transforms/InstCombine/InstCombine.h"
|
|
#include "llvm/Transforms/Scalar.h"
|
|
#include "llvm/Transforms/Scalar/GVN.h"
|
|
#include "llvm/Transforms/Utils.h"
|
|
|
|
#define DEBUG_TYPE "polly-cleanup"
|
|
|
|
using namespace llvm;
|
|
using namespace polly;
|
|
|
|
namespace {
|
|
|
|
class CodegenCleanup : public FunctionPass {
|
|
private:
|
|
CodegenCleanup(const CodegenCleanup &) = delete;
|
|
const CodegenCleanup &operator=(const CodegenCleanup &) = delete;
|
|
|
|
llvm::legacy::FunctionPassManager *FPM;
|
|
|
|
public:
|
|
static char ID;
|
|
explicit CodegenCleanup() : FunctionPass(ID), FPM(nullptr) {}
|
|
|
|
/// @name FunctionPass interface
|
|
//@{
|
|
virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const override {}
|
|
|
|
virtual bool doInitialization(Module &M) override {
|
|
assert(!FPM);
|
|
|
|
FPM = new llvm::legacy::FunctionPassManager(&M);
|
|
|
|
// TODO: How to make parent passes discoverable?
|
|
// TODO: Should be sensitive to compiler options in PassManagerBuilder, to
|
|
// which we do not have access here.
|
|
FPM->add(createScopedNoAliasAAWrapperPass());
|
|
FPM->add(createTypeBasedAAWrapperPass());
|
|
FPM->add(createAAResultsWrapperPass());
|
|
|
|
// TODO: These are non-conditional passes that run between
|
|
// EP_ModuleOptimizerEarly and EP_VectorizerStart just to ensure we do not
|
|
// miss any optimization that would have run after Polly with
|
|
// -polly-position=early. This can probably be reduced to a more compact set
|
|
// of passes.
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createSROAPass());
|
|
FPM->add(createEarlyCSEPass());
|
|
|
|
FPM->add(createPromoteMemoryToRegisterPass());
|
|
FPM->add(createInstructionCombiningPass(true));
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createSROAPass());
|
|
FPM->add(createEarlyCSEPass(true));
|
|
FPM->add(createSpeculativeExecutionIfHasBranchDivergencePass());
|
|
FPM->add(createJumpThreadingPass());
|
|
FPM->add(createCorrelatedValuePropagationPass());
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createInstructionCombiningPass(true));
|
|
FPM->add(createLibCallsShrinkWrapPass());
|
|
FPM->add(createTailCallEliminationPass());
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createReassociatePass());
|
|
FPM->add(createLoopRotatePass(-1));
|
|
FPM->add(createGVNPass());
|
|
FPM->add(createLICMPass());
|
|
FPM->add(createLoopUnswitchPass());
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createInstructionCombiningPass(true));
|
|
FPM->add(createIndVarSimplifyPass());
|
|
FPM->add(createLoopIdiomPass());
|
|
FPM->add(createLoopDeletionPass());
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createSimpleLoopUnrollPass(3));
|
|
FPM->add(createMergedLoadStoreMotionPass());
|
|
FPM->add(createGVNPass());
|
|
FPM->add(createMemCpyOptPass());
|
|
FPM->add(createSCCPPass());
|
|
FPM->add(createBitTrackingDCEPass());
|
|
FPM->add(createInstructionCombiningPass(true));
|
|
FPM->add(createJumpThreadingPass());
|
|
FPM->add(createCorrelatedValuePropagationPass());
|
|
FPM->add(createDeadStoreEliminationPass());
|
|
FPM->add(createLICMPass());
|
|
FPM->add(createAggressiveDCEPass());
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createInstructionCombiningPass(true));
|
|
FPM->add(createFloat2IntPass());
|
|
|
|
return FPM->doInitialization();
|
|
}
|
|
|
|
virtual bool doFinalization(Module &M) override {
|
|
bool Result = FPM->doFinalization();
|
|
|
|
delete FPM;
|
|
FPM = nullptr;
|
|
|
|
return Result;
|
|
}
|
|
|
|
virtual bool runOnFunction(llvm::Function &F) override {
|
|
if (!F.hasFnAttribute("polly-optimized")) {
|
|
LLVM_DEBUG(
|
|
dbgs() << F.getName()
|
|
<< ": Skipping cleanup because Polly did not optimize it.");
|
|
return false;
|
|
}
|
|
|
|
LLVM_DEBUG(dbgs() << F.getName() << ": Running codegen cleanup...");
|
|
return FPM->run(F);
|
|
}
|
|
//@}
|
|
};
|
|
|
|
char CodegenCleanup::ID;
|
|
} // namespace
|
|
|
|
FunctionPass *polly::createCodegenCleanupPass() { return new CodegenCleanup(); }
|
|
|
|
INITIALIZE_PASS_BEGIN(CodegenCleanup, "polly-cleanup",
|
|
"Polly - Cleanup after code generation", false, false)
|
|
INITIALIZE_PASS_END(CodegenCleanup, "polly-cleanup",
|
|
"Polly - Cleanup after code generation", false, false)
|