[Bug target/37157] New: [4.4 Regression] Wrong insn for _mm_unpackhi_epi64

[Bug target/37157] New: [4.4 Regression] Wrong insn for _mm_unpackhi_epi64

[hjl dot tools at gmail dot com]

[hjl@gnu-6 i386]$ cat x.c
/* { dg-do run } */
/* { dg-options "-O2 -msse2" } */

#include <emmintrin.h>

__m128i
__attribute__((noinline, unused))
test (__m128i s1, __m128i s2)
{
  return _mm_unpackhi_epi64 (s1, s2); 
}
[hjl@gnu-6 i386]$
/export/build/gnu/gcc-stack-internal/build-x86_64-linux/gcc/xgcc 
-B/export/build/gnu/gcc-stack-internal/build-x86_64-linux/gcc/ -O2 x.c -S
[hjl@gnu-6 i386]$ cat x.s
        .file   "x.c"
        .text
        .p2align 4,,15
.globl test
        .type   test, @function
test:
.LFB516:
        shufpd  $3, %xmm1, %xmm0
        ret

Gcc 4.3 generates

test:
.LFB518:
        punpckhqdq      %xmm1, %xmm0
        ret


-- 
           Summary: [4.4 Regression] Wrong insn for _mm_unpackhi_epi64
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl dot tools at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37157

[Bug target/37157] [4.4 Regression] Wrong insn for _mm_unpackhi_epi64

[hjl dot tools at gmail dot com]

------- Comment #1 from hjl dot tools at gmail dot com  2008-08-19 01:25 -------
It may be caused by revision 138553.


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37157

[Bug target/37157] [4.4 Regression] Wrong insn for _mm_unpackhi_epi64

[hjl at gcc dot gnu dot org]

------- Comment #2 from hjl at gcc dot gnu dot org  2008-08-19 12:50 -------
Subject: Bug 37157

Author: hjl
Date: Tue Aug 19 12:49:28 2008
New Revision: 139232

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139232
Log:
gcc/

2008-08-19  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/37157
        * config/i386/sse.md (sse2_punpckhqdq, sse2_punpcklqdq): Moved
        before (sse2_shufpd_<mode>).

gcc/testsuite/

2008-08-19  H.J. Lu  <hongjiu.lu@intel.com>

        PR target/37157
        * gcc.target/i386/sse2-unpack-1.c: New.

Added:
    trunk/gcc/testsuite/gcc.target/i386/sse2-unpack-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/sse.md
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37157

[Bug target/37157] [4.4 Regression] Wrong insn for _mm_unpackhi_epi64

[hjl dot tools at gmail dot com]

------- Comment #3 from hjl dot tools at gmail dot com  2008-08-19 15:48 -------
Fixed.


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37157

[Bug target/37157] [4.4 Regression] Wrong insn for _mm_unpackhi_epi64

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37157