This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/29777] missed optimization: model missing widen_mult* idioms for SSE
- From: "uros at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Nov 2006 08:46:04 -0000
- Subject: [Bug tree-optimization/29777] missed optimization: model missing widen_mult* idioms for SSE
- References: <bug-29777-8585@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from uros at gcc dot gnu dot org 2006-11-10 08:46 -------
Subject: Bug 29777
Author: uros
Date: Fri Nov 10 08:45:47 2006
New Revision: 118649
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=118649
Log:
PR target/29777
* config/i386/sse.md (smulv8hi3_highpart): Change from define_insn
to define_expand.
(umulv8hi3_highpart): Ditto.
(vec_widen_smult_hi_v8hi): New expander.
(vec_widen_smult_lo_v8hi): Ditto.
testsuite/ChangeLog:
PR target/29777
* lib/target-supports.exp (vect_widen_mult_hi_to_si): Add i?86-*-*
and x86_64-*-* targets.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/sse.md
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/lib/target-supports.exp
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29777