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[Bug target/37169] [4.4 Regression] Inefficent code for _mm_cvtsi64_si128
- From: "hjl at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Aug 2008 13:23:49 -0000
- Subject: [Bug target/37169] [4.4 Regression] Inefficent code for _mm_cvtsi64_si128
- References: <bug-37169-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from hjl at gcc dot gnu dot org 2008-08-20 13:23 -------
Subject: Bug 37169
Author: hjl
Date: Wed Aug 20 13:22:30 2008
New Revision: 139289
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139289
Log:
gcc/
2008-08-20 H.J. Lu <hongjiu.lu@intel.com>
PR target/37169
* config/i386/i386.c (ix86_expand_vector_init_one_nonzero): In
V2DI mode, for SSE4.1, use movq instead of vector set if the
second element is zero and inter-unit moves are OK.
gcc/testsuite/
2008-08-20 H.J. Lu <hongjiu.lu@intel.com>
PR target/37169
* i386/sse2-init-v2di-2.c: New.
Added:
trunk/gcc/testsuite/gcc.target/i386/sse2-init-v2di-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37169