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Reapply the TargerTransformInfo changes, minus the changes to LSR and Lowerinvoke.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166248 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2012-10-18 23:22:48 +00:00
parent ebd3f27c7e
commit cbd9a19b5d
38 changed files with 720 additions and 225 deletions
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78
tools/opt/opt.cpp
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@ -18,6 +18,7 @@
#include "llvm/Module.h"
#include "llvm/PassManager.h"
#include "llvm/CallGraphSCCPass.h"
#include "llvm/CodeGen/CommandFlags.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/Assembly/PrintModulePass.h"
#include "llvm/Analysis/Verifier.h"
@ -36,7 +37,9 @@
#include "llvm/Support/PluginLoader.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/SystemUtils.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/ToolOutputFile.h"
#include "llvm/MC/SubtargetFeature.h"
#include "llvm/LinkAllPasses.h"
#include "llvm/LinkAllVMCore.h"
#include "llvm/Transforms/IPO/PassManagerBuilder.h"
@ -478,6 +481,75 @@ static void AddStandardLinkPasses(PassManagerBase &PM) {
/*RunInliner=*/ !DisableInline);
}
//===----------------------------------------------------------------------===//
// CodeGen-related helper functions.
//
static TargetOptions GetTargetOptions() {
TargetOptions Options;
Options.LessPreciseFPMADOption = EnableFPMAD;
Options.NoFramePointerElim = DisableFPElim;
Options.NoFramePointerElimNonLeaf = DisableFPElimNonLeaf;
Options.AllowFPOpFusion = FuseFPOps;
Options.UnsafeFPMath = EnableUnsafeFPMath;
Options.NoInfsFPMath = EnableNoInfsFPMath;
Options.NoNaNsFPMath = EnableNoNaNsFPMath;
Options.HonorSignDependentRoundingFPMathOption =
EnableHonorSignDependentRoundingFPMath;
Options.UseSoftFloat = GenerateSoftFloatCalls;
if (FloatABIForCalls != FloatABI::Default)
Options.FloatABIType = FloatABIForCalls;
Options.NoZerosInBSS = DontPlaceZerosInBSS;
Options.GuaranteedTailCallOpt = EnableGuaranteedTailCallOpt;
Options.DisableTailCalls = DisableTailCalls;
Options.StackAlignmentOverride = OverrideStackAlignment;
Options.RealignStack = EnableRealignStack;
Options.TrapFuncName = TrapFuncName;
Options.PositionIndependentExecutable = EnablePIE;
Options.EnableSegmentedStacks = SegmentedStacks;
Options.UseInitArray = UseInitArray;
Options.SSPBufferSize = SSPBufferSize;
return Options;
}
CodeGenOpt::Level GetCodeGenOptLevel() {
if (OptLevelO1)
return CodeGenOpt::Less;
if (OptLevelO2)
return CodeGenOpt::Default;
if (OptLevelO3)
return CodeGenOpt::Aggressive;
return CodeGenOpt::None;
}
// Returns the TargetMachine instance or zero if no triple is provided.
static TargetMachine* GetTargetMachine(std::string TripleStr) {
if (TripleStr.empty())
return 0;
// Get the target specific parser.
std::string Error;
Triple TheTriple(Triple::normalize(TargetTriple));
const Target *TheTarget = TargetRegistry::lookupTarget(MArch, TheTriple,
Error);
if (!TheTarget) {
return 0;
}
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
if (MAttrs.size()) {
SubtargetFeatures Features;
for (unsigned i = 0; i != MAttrs.size(); ++i)
Features.AddFeature(MAttrs[i]);
FeaturesStr = Features.getString();
}
return TheTarget->createTargetMachine(TheTriple.getTriple(),
MCPU, FeaturesStr, GetTargetOptions(),
RelocModel, CMModel,
GetCodeGenOptLevel());
}
//===----------------------------------------------------------------------===//
// main for opt
@ -579,6 +651,12 @@ int main(int argc, char **argv) {
if (TD)
Passes.add(TD);
std::auto_ptr<TargetMachine> TM(GetTargetMachine(TargetTriple));
if (TM.get()) {
Passes.add(new TargetTransformInfo(TM->getScalarTargetTransformInfo(),
TM->getVectorTargetTransformInfo()));
}
OwningPtr<FunctionPassManager> FPasses;
if (OptLevelO1 || OptLevelO2 || OptLevelOs || OptLevelOz || OptLevelO3) {
FPasses.reset(new FunctionPassManager(M.get()));