[cfe-commits] r120878 - in /cfe/trunk: include/clang/Driver/CC1Options.td include/clang/Frontend/CodeGenOptions.h lib/CodeGen/BackendUtil.cpp lib/Frontend/CompilerInvocation.cpp

[Peter Collingbourne]

Author: pcc
Date: Fri Dec  3 19:51:05 2010
New Revision: 120878

URL: http://llvm.org/viewvc/llvm-project?rev=120878&view=rev
Log:
Implement -cl-finite-math-only

Modified:
    cfe/trunk/include/clang/Driver/CC1Options.td
    cfe/trunk/include/clang/Frontend/CodeGenOptions.h
    cfe/trunk/lib/CodeGen/BackendUtil.cpp
    cfe/trunk/lib/Frontend/CompilerInvocation.cpp

Modified: cfe/trunk/include/clang/Driver/CC1Options.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/CC1Options.td?rev=120878&r1=120877&r2=120878&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/CC1Options.td (original)
+++ cfe/trunk/include/clang/Driver/CC1Options.td Fri Dec  3 19:51:05 2010
@@ -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.">;

Modified: cfe/trunk/include/clang/Frontend/CodeGenOptions.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Frontend/CodeGenOptions.h?rev=120878&r1=120877&r2=120878&view=diff
==============================================================================
--- cfe/trunk/include/clang/Frontend/CodeGenOptions.h (original)
+++ cfe/trunk/include/clang/Frontend/CodeGenOptions.h Fri Dec  3 19:51:05 2010
@@ -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;

Modified: cfe/trunk/lib/CodeGen/BackendUtil.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/BackendUtil.cpp?rev=120878&r1=120877&r2=120878&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/BackendUtil.cpp (original)
+++ cfe/trunk/lib/CodeGen/BackendUtil.cpp Fri Dec  3 19:51:05 2010
@@ -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;

Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=120878&r1=120877&r2=120878&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
+++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Fri Dec  3 19:51:05 2010
@@ -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);