[Bug target/64386] New: ICE: in extract_insn, at recog.c:2327 (unrecognizable insn) with -mavx512bw

[Bug target/64386] New: ICE: in extract_insn, at recog.c:2327 (unrecognizable insn) with -mavx512bw

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64386

            Bug ID: 64386
           Summary: ICE: in extract_insn, at recog.c:2327 (unrecognizable
                    insn) with -mavx512bw
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 34321
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34321&action=edit
reduced testcase (from gcc.dg/vect/vect-cond-7.c)

Compiler output:
$ gcc -O -ftree-vectorize -mavx512bw testcase.c 
testcase.c: In function 'fc':
testcase.c:11:1: error: unrecognizable insn:
 }
 ^
(insn 13 12 14 2 (set (reg:DI 98)
        (eq:DI (reg:V64QI 88 [ vect__6.8 ])
            (reg:V64QI 97))) testcase.c:9 -1
     (nil))
testcase.c:11:1: internal compiler error: in extract_insn, at recog.c:2327
0xbd9d78 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /mnt/svn/gcc-trunk/gcc/rtl-error.c:110
0xbd9e08 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /mnt/svn/gcc-trunk/gcc/rtl-error.c:118
0xb903b8 extract_insn(rtx_insn*)
        /mnt/svn/gcc-trunk/gcc/recog.c:2327
0x96eecd instantiate_virtual_regs_in_insn
        /mnt/svn/gcc-trunk/gcc/function.c:1582
0x96eecd instantiate_virtual_regs
        /mnt/svn/gcc-trunk/gcc/function.c:1950
0x96eecd execute
        /mnt/svn/gcc-trunk/gcc/function.c:1999
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r219043 - ICE

[Bug target/64386] ICE: in extract_insn, at recog.c:2327 (unrecognizable insn) with -mavx512bw

[kyukhin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64386

Kirill Yukhin <kyukhin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kyukhin at gcc dot gnu.org

--- Comment #1 from Kirill Yukhin <kyukhin at gcc dot gnu.org> ---
We'll look at this. Thanks for catching!

[Bug target/64386] ICE: in extract_insn, at recog.c:2327 (unrecognizable insn) with -mavx512bw

[tocarip.intel at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64386

tocarip.intel at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tocarip.intel at gmail dot com

--- Comment #2 from tocarip.intel at gmail dot com ---
Created attachment 34347
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34347&action=edit
Proposed patch.

This (untested) patch fixes it.

[Bug target/64386] ICE: in extract_insn, at recog.c:2327 (unrecognizable insn) with -mavx512bw

[tocarip at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64386

--- Comment #3 from tocarip at gcc dot gnu.org ---
Author: tocarip
Date: Wed Jan 14 13:55:06 2015
New Revision: 219600

URL: https://gcc.gnu.org/viewcvs?rev=219600&root=gcc&view=rev
Log:
PR target/64386

gcc/
    PR target/64386
    * config/i386/i386.c (ix86_expand_sse_cmp): Handle V64QImode,
    V32HImode.

testsuite/ 
    * gcc.target/i386/pr64386.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr64386.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog