X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FTargetMachine.cpp;h=fe8a7cebd0a0113e3f9b8a05b1a3be9fa256d876;hb=fb12f35545481e8b42bd547bc37d220ffee77f86;hp=47c91df1400e664013a76a906f92b9a861d4077d;hpb=ea4cdb7ead622392640fd2f804b451bbc61364b3;p=oota-llvm.git diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp index 47c91df1400..fe8a7cebd0a 100644 --- a/lib/Target/TargetMachine.cpp +++ b/lib/Target/TargetMachine.cpp @@ -30,7 +30,8 @@ namespace llvm { bool NoFramePointerElimNonLeaf; bool NoExcessFPPrecision; bool UnsafeFPMath; - bool FiniteOnlyFPMathOption; + bool NoInfsFPMath; + bool NoNaNsFPMath; bool HonorSignDependentRoundingFPMathOption; bool UseSoftFloat; FloatABI::ABIType FloatABIType; @@ -39,15 +40,14 @@ namespace llvm { bool JITExceptionHandling; bool JITEmitDebugInfo; bool JITEmitDebugInfoToDisk; - bool UnwindTablesMandatory; - Reloc::Model RelocationModel; - CodeModel::Model CMModel; bool GuaranteedTailCallOpt; - unsigned StackAlignment; + unsigned StackAlignmentOverride; bool RealignStack; bool DisableJumpTables; bool StrongPHIElim; + bool HasDivModLibcall; bool AsmVerbosityDefault(false); + bool EnableSegmentedStacks; } static cl::opt @@ -80,9 +80,14 @@ EnableUnsafeFPMath("enable-unsafe-fp-math", cl::location(UnsafeFPMath), cl::init(false)); static cl::opt -EnableFiniteOnlyFPMath("enable-finite-only-fp-math", - cl::desc("Enable optimizations that assumes non- NaNs / +-Infs"), - cl::location(FiniteOnlyFPMathOption), +EnableNoInfsFPMath("enable-no-infs-fp-math", + cl::desc("Enable FP math optimizations that assume no +-Infs"), + cl::location(NoInfsFPMath), + cl::init(false)); +static cl::opt +EnableNoNaNsFPMath("enable-no-nans-fp-math", + cl::desc("Enable FP math optimizations that assume no NaNs"), + cl::location(NoNaNsFPMath), cl::init(false)); static cl::opt EnableHonorSignDependentRoundingFPMath("enable-sign-dependent-rounding-fp-math", @@ -136,44 +141,7 @@ EmitJitDebugInfoToDisk("jit-emit-debug-to-disk", cl::desc("Emit debug info objfiles to disk"), cl::location(JITEmitDebugInfoToDisk), cl::init(false)); -static cl::opt -EnableUnwindTables("unwind-tables", - cl::desc("Generate unwinding tables for all functions"), - cl::location(UnwindTablesMandatory), - cl::init(false)); -static cl::opt -DefRelocationModel("relocation-model", - cl::desc("Choose relocation model"), - cl::location(RelocationModel), - cl::init(Reloc::Default), - cl::values( - clEnumValN(Reloc::Default, "default", - "Target default relocation model"), - clEnumValN(Reloc::Static, "static", - "Non-relocatable code"), - clEnumValN(Reloc::PIC_, "pic", - "Fully relocatable, position independent code"), - clEnumValN(Reloc::DynamicNoPIC, "dynamic-no-pic", - "Relocatable external references, non-relocatable code"), - clEnumValEnd)); -static cl::opt -DefCodeModel("code-model", - cl::desc("Choose code model"), - cl::location(CMModel), - cl::init(CodeModel::Default), - cl::values( - clEnumValN(CodeModel::Default, "default", - "Target default code model"), - clEnumValN(CodeModel::Small, "small", - "Small code model"), - clEnumValN(CodeModel::Kernel, "kernel", - "Kernel code model"), - clEnumValN(CodeModel::Medium, "medium", - "Medium code model"), - clEnumValN(CodeModel::Large, "large", - "Large code model"), - clEnumValEnd)); static cl::opt EnableGuaranteedTailCallOpt("tailcallopt", cl::desc("Turn fastcc calls into tail calls by (potentially) changing ABI."), @@ -182,7 +150,7 @@ EnableGuaranteedTailCallOpt("tailcallopt", static cl::opt OverrideStackAlignment("stack-alignment", cl::desc("Override default stack alignment"), - cl::location(StackAlignment), + cl::location(StackAlignmentOverride), cl::init(0)); static cl::opt EnableRealignStack("realign-stack", @@ -199,6 +167,10 @@ EnableStrongPHIElim(cl::Hidden, "strong-phi-elim", cl::desc("Use strong PHI elimination."), cl::location(StrongPHIElim), cl::init(false)); +static cl::opt +TrapFuncName("trap-func", cl::Hidden, + cl::desc("Emit a call to trap function rather than a trap instruction"), + cl::init("")); static cl::opt DataSections("fdata-sections", cl::desc("Emit data into separate sections"), @@ -207,13 +179,25 @@ static cl::opt FunctionSections("ffunction-sections", cl::desc("Emit functions into separate sections"), cl::init(false)); +static cl::opt +SegmentedStacks("segmented-stacks", + cl::desc("Use segmented stacks if possible."), + cl::location(EnableSegmentedStacks), + cl::init(false)); + //--------------------------------------------------------------------------- // TargetMachine Class // -TargetMachine::TargetMachine(const Target &T) - : TheTarget(T), AsmInfo(0), - MCRelaxAll(false) { +TargetMachine::TargetMachine(const Target &T, + StringRef TT, StringRef CPU, StringRef FS) + : TheTarget(T), TargetTriple(TT), TargetCPU(CPU), TargetFS(FS), + CodeGenInfo(0), AsmInfo(0), + MCRelaxAll(false), + MCNoExecStack(false), + MCSaveTempLabels(false), + MCUseLoc(true), + MCUseCFI(true) { // Typically it will be subtargets that will adjust FloatABIType from Default // to Soft or Hard. if (UseSoftFloat) @@ -221,29 +205,24 @@ TargetMachine::TargetMachine(const Target &T) } TargetMachine::~TargetMachine() { + delete CodeGenInfo; delete AsmInfo; } /// getRelocationModel - Returns the code generation relocation model. The /// choices are static, PIC, and dynamic-no-pic, and target default. -Reloc::Model TargetMachine::getRelocationModel() { - return RelocationModel; -} - -/// setRelocationModel - Sets the code generation relocation model. -void TargetMachine::setRelocationModel(Reloc::Model Model) { - RelocationModel = Model; +Reloc::Model TargetMachine::getRelocationModel() const { + if (!CodeGenInfo) + return Reloc::Default; + return CodeGenInfo->getRelocationModel(); } /// getCodeModel - Returns the code model. The choices are small, kernel, /// medium, large, and target default. -CodeModel::Model TargetMachine::getCodeModel() { - return CMModel; -} - -/// setCodeModel - Sets the code model. -void TargetMachine::setCodeModel(CodeModel::Model Model) { - CMModel = Model; +CodeModel::Model TargetMachine::getCodeModel() const { + if (!CodeGenInfo) + return CodeModel::Default; + return CodeGenInfo->getCodeModel(); } bool TargetMachine::getAsmVerbosityDefault() { @@ -290,15 +269,16 @@ namespace llvm { /// result is "less precise" than doing those operations individually. bool LessPreciseFPMAD() { return UnsafeFPMath || LessPreciseFPMADOption; } - /// FiniteOnlyFPMath - This returns true when the -enable-finite-only-fp-math - /// option is specified on the command line. If this returns false (default), - /// the code generator is not allowed to assume that FP arithmetic arguments - /// and results are never NaNs or +-Infs. - bool FiniteOnlyFPMath() { return FiniteOnlyFPMathOption; } - /// HonorSignDependentRoundingFPMath - Return true if the codegen must assume /// that the rounding mode of the FPU can change from its default. bool HonorSignDependentRoundingFPMath() { return !UnsafeFPMath && HonorSignDependentRoundingFPMathOption; } + + /// getTrapFunctionName - If this returns a non-empty string, this means isel + /// should lower Intrinsic::trap to a call to the specified function name + /// instead of an ISD::TRAP node. + StringRef getTrapFunctionName() { + return TrapFuncName; + } }