common.opt (fsigned-zeros): New command line option.

[gcc.git] / gcc / ChangeLog

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+2007-01-19  Roger Sayle  <roger@eyesopen.com>
+
+       * common.opt (fsigned-zeros): New command line option.
+       * flags.h (HONOR_SIGNED_ZEROS): Control via flag_signed_zeros instead
+       of flag_unsafe_math_optimizations.
+       * opts.c (set_fast_math_flags): The -ffast-math command line option
+       implies -fno-signed-zeros.
+       (fast_math_flags_set_p): Likewise.
+
+       * doc/invoke.texi: Document new -fno-signed-zeros option, and update
+       the documentation of -ffast-math appropriately.  Wrap long lines.
+
 2007-01-19  Steve Ellcey  <sje@cup.hp.com>
 
        * system.h (ASM_MAKE_LABEL_LINKONCE): Poison.