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| author | Bob Wilson <bob.wilson@apple.com> | 2012-07-19 03:52:53 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2012-07-19 03:52:53 +0000 |
| commit | 6a039161d7b61ae69380e049f314eabb702372b9 (patch) | |
| tree | 810fd4fc5b9a991a2116a0b35b51dbf02244729f /clang/lib/Frontend/InitPreprocessor.cpp | |
| parent | 24a1047c8cda684c12cf473fa8adb21aca567f4e (diff) | |
| download | bcm5719-llvm-6a039161d7b61ae69380e049f314eabb702372b9.tar.gz bcm5719-llvm-6a039161d7b61ae69380e049f314eabb702372b9.zip | |
Define __FINITE_MATH_ONLY__ based on -ffast-math and -ffinite-math-only.
This macro was being unconditionally set to zero, preceded by a FIXME comment.
This fixes <rdar://problem/11845441>. Patch by Michael Gottesman!
llvm-svn: 160491
Diffstat (limited to 'clang/lib/Frontend/InitPreprocessor.cpp')
| -rw-r--r-- | clang/lib/Frontend/InitPreprocessor.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp index 6120d117e3c..3979731ff6f 100644 --- a/clang/lib/Frontend/InitPreprocessor.cpp +++ b/clang/lib/Frontend/InitPreprocessor.cpp @@ -527,9 +527,10 @@ static void InitializePredefinedMacros(const TargetInfo &TI, if (const char *Prefix = TI.getUserLabelPrefix()) Builder.defineMacro("__USER_LABEL_PREFIX__", Prefix); - // Build configuration options. FIXME: these should be controlled by - // command line options or something. - Builder.defineMacro("__FINITE_MATH_ONLY__", "0"); + if (LangOpts.FastMath || LangOpts.FiniteMathOnly) + Builder.defineMacro("__FINITE_MATH_ONLY__", "1"); + else + Builder.defineMacro("__FINITE_MATH_ONLY__", "0"); if (LangOpts.GNUInline) Builder.defineMacro("__GNUC_GNU_INLINE__"); |
