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Implement -cl-finite-math-only 

llvm-svn: 120878
This commit is contained in:
Peter Collingbourne 2010-12-04 01:51:05 +00:00
parent 0b69e1a628
commit 0ba5ac8544
4 changed files with 9 additions and 0 deletions
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2
clang/include/clang/Driver/CC1Options.td
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@ -601,3 +601,5 @@ def cl_opt_disable : Flag<"-cl-opt-disable">,
HelpText<"OpenCL only. This option disables all optimizations. The default is optimizations are enabled.">;
def cl_single_precision_constant : Flag<"-cl-single-precision-constant">,
HelpText<"OpenCL only. Treat double precision floating-point constant as single precision constant.">;
def cl_finite_math_only : Flag<"-cl-finite-math-only">,
HelpText<"OpenCL only. Allow floating-point optimizations that assume arguments and results are not NaNs or +-Inf.">;

4
clang/include/clang/Frontend/CodeGenOptions.h
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@ -59,6 +59,8 @@ public:
unsigned MergeAllConstants : 1; /// Merge identical constants.
unsigned NoCommon : 1; /// Set when -fno-common or C++ is enabled.
unsigned NoImplicitFloat : 1; /// Set when -mno-implicit-float is enabled.
unsigned NoInfsFPMath : 1; /// Assume FP arguments, results not +-Inf.
unsigned NoNaNsFPMath : 1; /// Assume FP arguments, results not NaN.
unsigned NoZeroInitializedInBSS : 1; /// -fno-zero-initialized-in-bss
unsigned ObjCDispatchMethod : 2; /// Method of Objective-C dispatch to use.
unsigned OmitLeafFramePointer : 1; /// Set when -momit-leaf-frame-pointer is
@ -123,6 +125,8 @@ public:
MergeAllConstants = 1;
NoCommon = 0;
NoImplicitFloat = 0;
NoInfsFPMath = 0;
NoNaNsFPMath = 0;
NoZeroInitializedInBSS = 0;
ObjCDispatchMethod = Legacy;
OmitLeafFramePointer = 0;

2
clang/lib/CodeGen/BackendUtil.cpp
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@ -183,6 +183,8 @@ bool EmitAssemblyHelper::AddEmitPasses(BackendAction Action,
llvm::FloatABIType = llvm::FloatABI::Default;
}
llvm::NoInfsFPMath = CodeGenOpts.NoInfsFPMath;
llvm::NoNaNsFPMath = CodeGenOpts.NoNaNsFPMath;
NoZerosInBSS = CodeGenOpts.NoZeroInitializedInBSS;
llvm::UseSoftFloat = CodeGenOpts.SoftFloat;
UnwindTablesMandatory = CodeGenOpts.UnwindTables;

1
clang/lib/Frontend/CompilerInvocation.cpp
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@ -898,6 +898,7 @@ static void ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables);
Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
Opts.NoInfsFPMath = Opts.NoNaNsFPMath = Args.hasArg(OPT_cl_finite_math_only);
Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);