+2011-01-12 Richard Guenther <rguenther@suse.de>
+
+ PR other/46946
+ * doc/invoke.texi (ffast-math): Document it is turned on
+ with -Ofast.
+
2011-01-12 Jan Hubicka <jh@suse.cz>
PR tree-optimization/47233
This option causes the preprocessor macro @code{__FAST_MATH__} to be defined.
-This option is not turned on by any @option{-O} option since
-it can result in incorrect output for programs which depend on
-an exact implementation of IEEE or ISO rules/specifications for
-math functions. It may, however, yield faster code for programs
+This option is not turned on by any @option{-O} option besides
+@option{-Ofast} since it can result in incorrect output for programs
+which depend on an exact implementation of IEEE or ISO rules/specifications
+for math functions. It may, however, yield faster code for programs
that do not require the guarantees of these specifications.
@item -fno-math-errno