mirror of
https://github.com/capstone-engine/llvm-capstone.git
synced 2024-12-28 10:46:11 +00:00
b339594f5d
This pass is not enabled in the default tool chain and currently can run into an infinite loop, due to other parts of LLVM generating incorrect IR (http://llvm.org/PR27065) -- which is not executed and consequently does not seem to disturb other passes. As this pass is not really needed, we can just drop it to get our build clean. This fixes the timeout issues in MultiSource/Benchmarks/MiBench/consumer-jpeg and MultiSource/Benchmarks/mediabench/jpeg/jpeg-6a/cjpeg for -polly-position=before-vectorizer -polly-process-unprofitable.. Unfortunately, we are still left with a miscompile in cjpeg. llvm-svn: 264396
120 lines
3.9 KiB
C++
120 lines
3.9 KiB
C++
#include "polly/CodeGen/CodegenCleanup.h"
|
|
|
|
#include "llvm/Analysis/CFLAliasAnalysis.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/Scalar.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 wo do not have access here.
|
|
FPM->add(createCFLAAWrapperPass());
|
|
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(createScalarReplAggregatesPass());
|
|
FPM->add(createEarlyCSEPass());
|
|
FPM->add(createInstructionCombiningPass());
|
|
FPM->add(createJumpThreadingPass());
|
|
FPM->add(createCorrelatedValuePropagationPass());
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createInstructionCombiningPass());
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createReassociatePass());
|
|
FPM->add(createLoopRotatePass());
|
|
FPM->add(createLICMPass());
|
|
FPM->add(createLoopUnswitchPass());
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createInstructionCombiningPass());
|
|
FPM->add(createIndVarSimplifyPass());
|
|
FPM->add(createLoopIdiomPass());
|
|
FPM->add(createLoopDeletionPass());
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createSimpleLoopUnrollPass());
|
|
FPM->add(createMergedLoadStoreMotionPass());
|
|
FPM->add(createMemCpyOptPass());
|
|
FPM->add(createBitTrackingDCEPass());
|
|
FPM->add(createInstructionCombiningPass());
|
|
FPM->add(createJumpThreadingPass());
|
|
FPM->add(createCorrelatedValuePropagationPass());
|
|
FPM->add(createDeadStoreEliminationPass());
|
|
FPM->add(createLICMPass());
|
|
FPM->add(createLoopRerollPass());
|
|
FPM->add(createAggressiveDCEPass());
|
|
FPM->add(createCFGSimplificationPass());
|
|
FPM->add(createInstructionCombiningPass());
|
|
|
|
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")) {
|
|
DEBUG(dbgs() << F.getName()
|
|
<< ": Skipping cleanup because Polly did not optimize it.");
|
|
return false;
|
|
}
|
|
|
|
DEBUG(dbgs() << F.getName() << ": Running codegen cleanup...");
|
|
return FPM->run(F);
|
|
}
|
|
//@}
|
|
};
|
|
|
|
char CodegenCleanup::ID;
|
|
}
|
|
|
|
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)
|