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authorChris Lattner <sabre@nondot.org>2005-04-30 04:09:52 +0000
committerChris Lattner <sabre@nondot.org>2005-04-30 04:09:52 +0000
commit34f74a6162f1e493a9773e83a684cf31fa4838de (patch)
tree45df7730dd858d387c2e2f4bbce4e28a7243ac00 /include/llvm/Target/TargetOptions.h
parentb42a9ffbe9f5dc7dc0e54c6425dff10e926e1f3d (diff)
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Expose an option allowing unsafe math optimizations. Patch contributed by
Morten Ofstad! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21630 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Target/TargetOptions.h')
-rw-r--r--include/llvm/Target/TargetOptions.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetOptions.h b/include/llvm/Target/TargetOptions.h
index 19b83d5..0018377 100644
--- a/include/llvm/Target/TargetOptions.h
+++ b/include/llvm/Target/TargetOptions.h
@@ -41,6 +41,12 @@ namespace llvm {
/// pattern ISel if available.
extern int PatternISelTriState;
+ /// UnsafeFPMath - This flag is enabled when the
+ /// -enable-unsafe-fp-math flag is specified on the command line. When
+ /// this flag is off (the default), the code generator is not allowed to
+ /// produce results that are "less precise" than IEEE allows. This includes
+ /// use of X86 instructions like FSIN and FCOS instead of libcalls.
+ extern bool UnsafeFPMath;
} // End llvm namespace
#endif