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| author | chaoyingfu <chaoyingfu@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-05-08 22:51:14 +0000 |
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| committer | chaoyingfu <chaoyingfu@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-05-08 22:51:14 +0000 |
| commit | 43fda2619f4b075d814e64a161fec03b09f95b9b (patch) | |
| tree | 4f99bbafe98aff39b7f5885c910746129d4e95e8 /gcc/optabs.h | |
| parent | 1121ac6fd3429a1a6a31cc627adc05a0b18f644d (diff) | |
| download | gcc-43fda2619f4b075d814e64a161fec03b09f95b9b.tar.gz | |
* doc/md.texi (msub@var{m}@var{n}4, usub@var{m}@var{n}4): Document.
* optabs.h (OTI_smsub_widen, OTI_umsub_widen): New optab_indexes.
(smsub_widen_optab, umsub_widen_optab): Define.
* optabs.c (init_optabs): Initialize smsub_widen_optab and
umsub_widen_optab.
* genopinit.c (optabs): Fill in smsub_widen_optab and
umsub_widen_optab.
* expr.c (expand_expr_real_1): Try to use smsub_widen_optab
and umsub_widen_optab to implement multiply-subtract sequences.
* config/mips/mips.md (*msac<u>_di): Rename to...
(<u>msubsidi4): ...this. Extend condition to include
GENERATE_MADD_MSUB and TARGET_DSPR2. Change the constraint
of operand 0 to "ka" and use the three-operand form of msub<u>
for TARGET_DSPR2.
* config/mips/mips-dspr2.md (mips_msub, mips_msubu): Convert
to define_expands.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@124558 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/optabs.h')
| -rw-r--r-- | gcc/optabs.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/optabs.h b/gcc/optabs.h index e5bbef89e4c..60dcc159729 100644 --- a/gcc/optabs.h +++ b/gcc/optabs.h @@ -92,6 +92,12 @@ enum optab_index /* Unigned multiply and add with the result and addend one machine mode wider than the multiplicand and multiplier. */ OTI_umadd_widen, + /* Signed multiply and subtract the result and minuend one machine mode + wider than the multiplicand and multiplier. */ + OTI_smsub_widen, + /* Unigned multiply and subtract the result and minuend one machine mode + wider than the multiplicand and multiplier. */ + OTI_umsub_widen, /* Signed divide */ OTI_sdiv, @@ -317,6 +323,8 @@ extern GTY(()) optab optab_table[OTI_MAX]; #define usmul_widen_optab (optab_table[OTI_usmul_widen]) #define smadd_widen_optab (optab_table[OTI_smadd_widen]) #define umadd_widen_optab (optab_table[OTI_umadd_widen]) +#define smsub_widen_optab (optab_table[OTI_smsub_widen]) +#define umsub_widen_optab (optab_table[OTI_umsub_widen]) #define sdiv_optab (optab_table[OTI_sdiv]) #define smulv_optab (optab_table[OTI_smulv]) #define sdivv_optab (optab_table[OTI_sdivv]) |