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| author | Roger Sayle <roger@eyesopen.com> | 2007-01-19 19:35:22 +0000 |
|---|---|---|
| committer | Roger Sayle <sayle@gcc.gnu.org> | 2007-01-19 19:35:22 +0000 |
| commit | db02da79174dea480aa4217dbe7afd3d3b8364d1 (patch) | |
| tree | e158e5c13ab326a2c00f9dd76f5137fb2f592973 /gcc/common.opt | |
| parent | d88c64564e9c9c57bea4c6ce15fd400f589f9de3 (diff) | |
| download | gcc-db02da79174dea480aa4217dbe7afd3d3b8364d1.zip gcc-db02da79174dea480aa4217dbe7afd3d3b8364d1.tar.gz gcc-db02da79174dea480aa4217dbe7afd3d3b8364d1.tar.bz2 | |
common.opt (fsigned-zeros): New command line option.
* 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.
* gcc.dg/pr30172-1.c: Specify the -fno-signed-zeros command line
option instead of -funsafe-math-optimizations.
From-SVN: r120978
Diffstat (limited to 'gcc/common.opt')
| -rw-r--r-- | gcc/common.opt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/common.opt b/gcc/common.opt index 109de7b..dfcda94 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -845,6 +845,10 @@ fsignaling-nans Common Report Var(flag_signaling_nans) Disable optimizations observable by IEEE signaling NaNs +fsigned-zeros +Common Report Var(flag_signed_zeros) Init(1) +Disable floating point optimizations that ignore the IEEE signedness of zero + fsingle-precision-constant Common Report Var(flag_single_precision_constant) Convert floating point constants to single precision constants |