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[Bug target/54236] [SH] Improve addc and subc insn utilization
- From: "olegendo at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 29 Oct 2013 20:45:59 +0000
- Subject: [Bug target/54236] [SH] Improve addc and subc insn utilization
- Auto-submitted: auto-generated
- References: <bug-54236-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54236
--- Comment #4 from Oleg Endo <olegendo at gcc dot gnu.org> ---
Author: olegendo
Date: Tue Oct 29 20:45:56 2013
New Revision: 204180
URL: http://gcc.gnu.org/viewcvs?rev=204180&root=gcc&view=rev
Log:
PR target/54236
* config/sh/sh.md (*addc): Rename existing variations to ...
(*addc_r_r_1, *addc_2r_1, *addc_r_1): ... these.
(*addc_r_lsb, *addc_r_r_lsb, *addc_r_lsb_r, *addc_2r_lsb, *addc_r_msb,
*addc_r_r_msb, *addc_2r_msb): New insn_and_split patterns.
* config/sh/sh.c (addsubcosts): Handle some addc special cases.
PR target/54236
* gcc.target/sh/pr54236-2: New.
* gcc.target/sh/pr54089-6: Add another rotl special case.
Added:
trunk/gcc/testsuite/gcc.target/sh/pr54236-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/sh/sh.c
trunk/gcc/config/sh/sh.md
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.target/sh/pr54089-6.c