Implement -cl-finite-math-only
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120878 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td
index eab473b..19d3a24 100644
--- a/include/clang/Driver/CC1Options.td
+++ b/include/clang/Driver/CC1Options.td
@@ -601,3 +601,5 @@
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.">;
diff --git a/include/clang/Frontend/CodeGenOptions.h b/include/clang/Frontend/CodeGenOptions.h
index 171cfd9..3ca3104 100644
--- a/include/clang/Frontend/CodeGenOptions.h
+++ b/include/clang/Frontend/CodeGenOptions.h
@@ -59,6 +59,8 @@
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 @@
MergeAllConstants = 1;
NoCommon = 0;
NoImplicitFloat = 0;
+ NoInfsFPMath = 0;
+ NoNaNsFPMath = 0;
NoZeroInitializedInBSS = 0;
ObjCDispatchMethod = Legacy;
OmitLeafFramePointer = 0;
diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp
index 82b4b50..ad70b60 100644
--- a/lib/CodeGen/BackendUtil.cpp
+++ b/lib/CodeGen/BackendUtil.cpp
@@ -183,6 +183,8 @@
llvm::FloatABIType = llvm::FloatABI::Default;
}
+ llvm::NoInfsFPMath = CodeGenOpts.NoInfsFPMath;
+ llvm::NoNaNsFPMath = CodeGenOpts.NoNaNsFPMath;
NoZerosInBSS = CodeGenOpts.NoZeroInitializedInBSS;
llvm::UseSoftFloat = CodeGenOpts.SoftFloat;
UnwindTablesMandatory = CodeGenOpts.UnwindTables;
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 7f9d4a5..4c8a281 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -898,6 +898,7 @@
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);