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| author | Steve Ellcey <sellcey@mips.com> | 2013-03-25 23:12:01 +0000 |
|---|---|---|
| committer | Steve Ellcey <sje@gcc.gnu.org> | 2013-03-25 23:12:01 +0000 |
| commit | 855e0d0b07d88325a59da5814be9c3e157d45226 (patch) | |
| tree | 8840e5195460da8bebf3f6b8d770f613ca1e5b0a /gcc/doc | |
| parent | f02296ddb9d4a183b90600659341baf91436f7d9 (diff) | |
| download | gcc-855e0d0b07d88325a59da5814be9c3e157d45226.zip gcc-855e0d0b07d88325a59da5814be9c3e157d45226.tar.gz gcc-855e0d0b07d88325a59da5814be9c3e157d45226.tar.bz2 | |
mmips-cpus.def (74kc, [...]): Add PTF_AVOID_IMADD.
2013-03-25 Steve Ellcey <sellcey@mips.com>
* config/mips/mmips-cpus.def (74kc, 74kf2_1, 74kf, 74kf, 74kf1_1,
74kfx, 74kx, 74kf3_2): Add PTF_AVOID_IMADD.
* config/mips/mips.c (mips_option_override): Set IMADD default.
* config/mips/mips.h (PTF_AVOID_IMADD): New.
(ISA_HAS_MADD_MSUB): Remove MIPS16 check.
(GENERATE_MADD_MSUB): Remove TUNE_74K check, add MIPS16 check.
* config/mips/mips.md (mimadd): New flag for integer madd/msub.
* doc/invoke.texi (-mimadd/-mno-imadd): New.
From-SVN: r197072
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 9b8b36a..3054e5c 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -766,7 +766,7 @@ Objective-C and Objective-C++ Dialects}. -mcheck-zero-division -mno-check-zero-division @gol -mdivide-traps -mdivide-breaks @gol -mmemcpy -mno-memcpy -mlong-calls -mno-long-calls @gol --mmad -mno-mad -mfused-madd -mno-fused-madd -nocpp @gol +-mmad -mno-mad -mimadd -mno-imadd -mfused-madd -mno-fused-madd -nocpp @gol -mfix-24k -mno-fix-24k @gol -mfix-r4000 -mno-fix-r4000 -mfix-r4400 -mno-fix-r4400 @gol -mfix-r10000 -mno-fix-r10000 -mfix-vr4120 -mno-fix-vr4120 @gol @@ -16481,6 +16481,15 @@ This option has no effect on abicalls code. The default is Enable (disable) use of the @code{mad}, @code{madu} and @code{mul} instructions, as provided by the R4650 ISA@. +@item -mimadd +@itemx -mno-imadd +@opindex mimadd +@opindex mno-imadd +Enable (disable) use of the @code{madd} and @code{msub} integer +instructions. The default is @option{-mimadd} on architectures +that support @code{madd} and @code{msub} except for the 74k +architecture where it was found to generate slower code. + @item -mfused-madd @itemx -mno-fused-madd @opindex mfused-madd |