diff options
| 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 | 455e72e7625a8f87c2c302d8d82baee5c111e094 (patch) | |
| tree | 597a36c3c1247cc52988afda5d8445a9b8c34b60 /lib/Frontend | |
| parent | f81678707e936cf04a2a9f7c21d51a77ffc1f6c9 (diff) | |
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!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160491 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Frontend')
| -rw-r--r-- | lib/Frontend/CompilerInvocation.cpp | 1 | ||||
| -rw-r--r-- | lib/Frontend/InitPreprocessor.cpp | 7 |
2 files changed, 5 insertions, 3 deletions
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp index 016783b1dc..544c0a270a 100644 --- a/lib/Frontend/CompilerInvocation.cpp +++ b/lib/Frontend/CompilerInvocation.cpp @@ -2100,6 +2100,7 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); Opts.FastMath = Args.hasArg(OPT_ffast_math); + Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only); unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); switch (SSP) { diff --git a/lib/Frontend/InitPreprocessor.cpp b/lib/Frontend/InitPreprocessor.cpp index 6120d117e3..3979731ff6 100644 --- a/lib/Frontend/InitPreprocessor.cpp +++ b/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__"); |