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* doc/md.texi (msub@var{m}@var{n}4, usub@var{m}@var{n}4): Document.
authorchaoyingfu <chaoyingfu@138bc75d-0d04-0410-961f-82ee72b054a4>
Tue, 8 May 2007 22:51:14 +0000 (22:51 +0000)
committerchaoyingfu <chaoyingfu@138bc75d-0d04-0410-961f-82ee72b054a4>
Tue, 8 May 2007 22:51:14 +0000 (22:51 +0000)
commit43fda2619f4b075d814e64a161fec03b09f95b9b
tree4f99bbafe98aff39b7f5885c910746129d4e95e8
parent1121ac6fd3429a1a6a31cc627adc05a0b18f644d
* 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
gcc/ChangeLog
gcc/config/mips/mips-dspr2.md
gcc/config/mips/mips.md
gcc/doc/md.texi
gcc/expr.c
gcc/genopinit.c
gcc/optabs.c
gcc/optabs.h