Driver: Handle -f{no-}honor-infinities, -f{no-}honor-nans, and
-ffinite-math-only.
- No test case yet, I don't know how to construct a situation where this
matters.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146297 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 9d8effb..f410848 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -1345,6 +1345,18 @@
getToolChain().IsStrictAliasingDefault()))
CmdArgs.push_back("-relaxed-aliasing");
+ // Handle -f{no-}honor-infinities, -f{no-}honor-nans, and -ffinite-math-only.
+ bool HonorInfinities = Args.hasFlag(options::OPT_fhonor_infinities,
+ options::OPT_fno_honor_infinities);
+ bool HonorNaNs = Args.hasFlag(options::OPT_fhonor_nans,
+ options::OPT_fno_honor_nans);
+ if (Args.hasArg(options::OPT_ffinite_math_only))
+ HonorInfinities = HonorNaNs = false;
+ if (!HonorInfinities)
+ CmdArgs.push_back("-menable-no-infs");
+ if (!HonorNaNs)
+ CmdArgs.push_back("-menable-no-nans");
+
// Decide whether to use verbose asm. Verbose assembly is the default on
// toolchains which have the integrated assembler on by default.
bool IsVerboseAsmDefault = getToolChain().IsIntegratedAssemblerDefault();