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[Bug target/30778] [4.3 Regression] invalid code generation for memset() with -mtune=k8
- From: "hubicka at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 25 Feb 2007 17:37:48 -0000
- Subject: [Bug target/30778] [4.3 Regression] invalid code generation for memset() with -mtune=k8
- References: <bug-30778-7958@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from hubicka at gcc dot gnu dot org 2007-02-25 17:37 -------
Subject: Bug 30778
Author: hubicka
Date: Sun Feb 25 17:37:37 2007
New Revision: 122313
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122313
Log:
PR target/30778
* i386.c (counter_mode): New function.
(expand_set_or_movmem_via_loop): Use it.
(expand_movmem_epilogue): Likewise; fix pasto.
(ix86_expand_movmem): Do emit guard even for constant counts.
(ix86_expand_setmem): Likewise.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr30778.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30778