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| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/invoke.texi | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a82ff50..6a2442b7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2001-03-05 Brad Lucier <lucier@math.purdue.edu> + + * invoke.texi: Document __FAST_MATH__. + 2001-03-05 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> * crtstuff.c: Restore include of auto-host.h. diff --git a/gcc/invoke.texi b/gcc/invoke.texi index c95e774..660e873 100644 --- a/gcc/invoke.texi +++ b/gcc/invoke.texi @@ -2940,6 +2940,8 @@ example, it allows the compiler to assume arguments to the @code{sqrt} function are non-negative numbers and that no floating-point values are NaNs. +This option causes the preprocessor macro __FAST_MATH__ to be defined. + This option should never be turned on by any @samp{-O} option since it can result in incorrect output for programs which depend on an exact implementation of IEEE or ISO rules/specifications for |