diff options
Diffstat (limited to 'llvm/lib/CodeGen/CommandFlags.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/CommandFlags.cpp | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/CommandFlags.cpp b/llvm/lib/CodeGen/CommandFlags.cpp index d5dc49a..d1540af 100644 --- a/llvm/lib/CodeGen/CommandFlags.cpp +++ b/llvm/lib/CodeGen/CommandFlags.cpp @@ -54,7 +54,7 @@ CGOPT(bool, EnableNoInfsFPMath) CGOPT(bool, EnableNoNaNsFPMath) CGOPT(bool, EnableNoSignedZerosFPMath) CGOPT(bool, EnableNoTrappingFPMath) -CGOPT(FPDenormal::DenormalMode, DenormalFPMath) +CGOPT(DenormalMode::DenormalModeKind, DenormalFPMath) CGOPT(bool, EnableHonorSignDependentRoundingFPMath) CGOPT(FloatABI::ABIType, FloatABIForCalls) CGOPT(FPOpFusion::FPOpFusionMode, FuseFPOps) @@ -212,17 +212,17 @@ codegen::RegisterCodeGenFlags::RegisterCodeGenFlags() { cl::init(false)); CGBINDOPT(EnableNoTrappingFPMath); - static cl::opt<FPDenormal::DenormalMode> DenormalFPMath( + static cl::opt<DenormalMode::DenormalModeKind> DenormalFPMath( "denormal-fp-math", cl::desc( "Select which denormal numbers the code is permitted to require"), - cl::init(FPDenormal::IEEE), + cl::init(DenormalMode::IEEE), cl::values( - clEnumValN(FPDenormal::IEEE, "ieee", "IEEE 754 denormal numbers"), - clEnumValN(FPDenormal::PreserveSign, "preserve-sign", + clEnumValN(DenormalMode::IEEE, "ieee", "IEEE 754 denormal numbers"), + clEnumValN(DenormalMode::PreserveSign, "preserve-sign", "the sign of a flushed-to-zero number is preserved " "in the sign of 0"), - clEnumValN(FPDenormal::PositiveZero, "positive-zero", + clEnumValN(DenormalMode::PositiveZero, "positive-zero", "denormals are flushed to positive zero"))); CGBINDOPT(DenormalFPMath); @@ -425,7 +425,12 @@ TargetOptions codegen::InitTargetOptionsFromCodeGenFlags() { Options.NoNaNsFPMath = getEnableNoNaNsFPMath(); Options.NoSignedZerosFPMath = getEnableNoSignedZerosFPMath(); Options.NoTrappingFPMath = getEnableNoTrappingFPMath(); - Options.FPDenormalMode = getDenormalFPMath(); + + DenormalMode::DenormalModeKind DenormKind = getDenormalFPMath(); + + // FIXME: Should have separate input and output flags + Options.setFPDenormalMode(DenormalMode(DenormKind, DenormKind)); + Options.HonorSignDependentRoundingFPMathOption = getEnableHonorSignDependentRoundingFPMath(); if (getFloatABIForCalls() != FloatABI::Default) @@ -563,6 +568,15 @@ void codegen::setFunctionAttributes(StringRef CPU, StringRef Features, HANDLE_BOOL_ATTR(EnableNoNaNsFPMathView, "no-nans-fp-math"); HANDLE_BOOL_ATTR(EnableNoSignedZerosFPMathView, "no-signed-zeros-fp-math"); + if (DenormalFPMathView->getNumOccurrences() > 0 && + !F.hasFnAttribute("denormal-fp-math")) { + DenormalMode::DenormalModeKind DenormKind = getDenormalFPMath(); + + // FIXME: Command line flag should expose separate input/output modes. + NewAttrs.addAttribute("denormal-fp-math", + DenormalMode(DenormKind, DenormKind).str()); + } + if (TrapFuncNameView->getNumOccurrences() > 0) for (auto &B : F) for (auto &I : B) |