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author | Nadav Rotem <nrotem@apple.com> | 2012-10-18 23:22:48 +0000 |
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committer | Nadav Rotem <nrotem@apple.com> | 2012-10-18 23:22:48 +0000 |
commit | cbd9a19b5d6ff93efa82c467508ede78b8af3bac (patch) | |
tree | 6e0e27c23dc4e189b0e959be3135b60c05b08759 /tools/opt/opt.cpp | |
parent | ebd3f27c7e2c6c3a1b76786da0d0205a5fdb1ef5 (diff) | |
download | external_llvm-cbd9a19b5d6ff93efa82c467508ede78b8af3bac.zip external_llvm-cbd9a19b5d6ff93efa82c467508ede78b8af3bac.tar.gz external_llvm-cbd9a19b5d6ff93efa82c467508ede78b8af3bac.tar.bz2 |
Reapply the TargerTransformInfo changes, minus the changes to LSR and Lowerinvoke.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166248 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/opt/opt.cpp')
-rw-r--r-- | tools/opt/opt.cpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/tools/opt/opt.cpp b/tools/opt/opt.cpp index 706a7d5..8d8d731 100644 --- a/tools/opt/opt.cpp +++ b/tools/opt/opt.cpp @@ -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())); |