[cfe-commits] r120879 - 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 19:51:14 2010
New Revision: 120879

URL: http://llvm.org/viewvc/llvm-project?rev=120879&view=rev
Log:
Implement -cl-unsafe-math-optimizations

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=120879&r1=120878&r2=120879&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/CC1Options.td (original)
+++ cfe/trunk/include/clang/Driver/CC1Options.td Fri Dec  3 19:51:14 2010
@@ -603,3 +603,5 @@
   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.">;
+def cl_unsafe_math_optimizations : Flag<"-cl-unsafe-math-optimizations">,
+  HelpText<"OpenCL only. Allow unsafe floating-point optimizations.  Also implies -cl-no-signed-zeros and -cl-mad-enable">;

Modified: cfe/trunk/include/clang/Frontend/CodeGenOptions.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Frontend/CodeGenOptions.h?rev=120879&r1=120878&r2=120879&view=diff
==============================================================================
--- cfe/trunk/include/clang/Frontend/CodeGenOptions.h (original)
+++ cfe/trunk/include/clang/Frontend/CodeGenOptions.h Fri Dec  3 19:51:14 2010
@@ -75,6 +75,7 @@
   unsigned UnitAtATime       : 1; /// Unused. For mirroring GCC optimization
                                   /// selection.
   unsigned UnrollLoops       : 1; /// Control whether loops are unrolled.
+  unsigned UnsafeFPMath      : 1; /// Allow unsafe floating point optzns.
   unsigned UnwindTables      : 1; /// Emit unwind tables.
   unsigned VerifyModule      : 1; /// Control whether the module should be run
                                   /// through the LLVM Verifier.
@@ -139,6 +140,7 @@
     TimePasses = 0;
     UnitAtATime = 1;
     UnrollLoops = 0;
+    UnsafeFPMath = 0;
     UnwindTables = 0;
     VerifyModule = 1;
 

Modified: cfe/trunk/lib/CodeGen/BackendUtil.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/BackendUtil.cpp?rev=120879&r1=120878&r2=120879&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/BackendUtil.cpp (original)
+++ cfe/trunk/lib/CodeGen/BackendUtil.cpp Fri Dec  3 19:51:14 2010
@@ -186,6 +186,7 @@
   llvm::NoInfsFPMath = CodeGenOpts.NoInfsFPMath;
   llvm::NoNaNsFPMath = CodeGenOpts.NoNaNsFPMath;
   NoZerosInBSS = CodeGenOpts.NoZeroInitializedInBSS;
+  llvm::UnsafeFPMath = CodeGenOpts.UnsafeFPMath;
   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=120879&r1=120878&r2=120879&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
+++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Fri Dec  3 19:51:14 2010
@@ -903,6 +903,7 @@
   Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
   Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
   Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
+  Opts.UnsafeFPMath = Args.hasArg(OPT_cl_unsafe_math_optimizations);
   Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
   Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic");