[Bug target/96144] New: [11 Regression] ICE in extract_insn, at recog.c:2294 since r11-1970-gfab263ab0fc10ea0

[Bug target/96144] New: [11 Regression] ICE in extract_insn, at recog.c:2294 since r11-1970-gfab263ab0fc10ea0

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96144

            Bug ID: 96144
           Summary: [11 Regression] ICE in extract_insn, at recog.c:2294
                    since r11-1970-gfab263ab0fc10ea0
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: hjl at gcc dot gnu.org
  Target Milestone: ---

I see the following ICE:

$ gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/sse-recip-vec.c
-Ofast -mavx512vbmi -c
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/sse-check.h: In
function ‘do_test’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/sse-check.h:13:1:
error: unrecognizable insn:
   13 | }
      | ^
(insn 21 20 22 2 (set (reg:V8SF 138)
        (fma:V8SF (reg:V8SF 136)
            (reg:V8SF 135)
            (reg:V8SF 142)))
"/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/sse-recip-vec.c":33:14
-1
     (nil))
during RTL pass: vregs
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/sse-check.h:13:1:
internal compiler error: in extract_insn, at recog.c:2294
0x7ffff7aa1cc9 __libc_start_main
        ../csu/libc-start.c:308
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

[Bug target/96144] [11 Regression] ICE in extract_insn, at recog.c:2294 since r11-1970-gfab263ab0fc10ea0

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96144

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
      Known to fail|                            |11.0
   Last reconfirmed|                            |2020-07-10
     Ever confirmed|0                           |1
      Known to work|                            |10.1.0

[Bug target/96144] [11 Regression] ICE in extract_insn, at recog.c:2294 since r11-1970-gfab263ab0fc10ea0

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96144

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |11.0
             Target|                            |x86_64-*-* i?86-*-*

[Bug target/96144] [11 Regression] ICE in extract_insn, at recog.c:2294 since r11-1970-gfab263ab0fc10ea0

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96144

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
This shows in multiple testsuite fails on x86-64 as well.

FAIL: gcc.target/i386/avx512er-vrsqrt28ps-3.c (internal compiler error)
FAIL: gcc.target/i386/avx512er-vrsqrt28ps-3.c (test for excess errors)
UNRESOLVED: gcc.target/i386/avx512er-vrsqrt28ps-3.c compilation failed to
produce executable
FAIL: gcc.target/i386/avx512er-vrsqrt28ps-4.c (internal compiler error)
FAIL: gcc.target/i386/avx512er-vrsqrt28ps-4.c (test for excess errors)
UNRESOLVED: gcc.target/i386/avx512er-vrsqrt28ps-4.c scan-assembler-not
vrcp28ps[^\\n\\r]*zmm[0-9]+(?:\\n|[ \\\\t]+#)
UNRESOLVED: gcc.target/i386/avx512er-vrsqrt28ps-4.c scan-assembler-times
vrsqrt28ps[^\\n\\r]*zmm[0-9]+(?:\\n|[ \\\\t]+#) 1
FAIL: gcc.target/i386/avx512er-vrsqrt28ps-5.c (internal compiler error)
FAIL: gcc.target/i386/avx512er-vrsqrt28ps-5.c (test for excess errors)
UNRESOLVED: gcc.target/i386/avx512er-vrsqrt28ps-5.c compilation failed to
produce executable
FAIL: gcc.target/i386/avx512er-vrsqrt28ps-6.c (internal compiler error)
FAIL: gcc.target/i386/avx512er-vrsqrt28ps-6.c (test for excess errors)
UNRESOLVED: gcc.target/i386/avx512er-vrsqrt28ps-6.c scan-assembler-times
vrcp28ps[^\\n\\r]*zmm[0-9]+(?:\\n|[ \\\\t]+#) 1
UNRESOLVED: gcc.target/i386/avx512er-vrsqrt28ps-6.c scan-assembler-times
vrsqrt28ps[^\\n\\r]*zmm[0-9]+(?:\\n|[ \\\\t]+#) 1

[Bug target/96144] [11 Regression] ICE in extract_insn, at recog.c:2294 since r11-1970-gfab263ab0fc10ea0

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96144

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |hjl.tools at gmail dot com
                URL|                            |https://gcc.gnu.org/piperma
                   |                            |il/gcc-patches/2020-July/54
                   |                            |9769.html
                 CC|hjl at gcc dot gnu.org             |

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
A patch was posted at

https://gcc.gnu.org/pipermail/gcc-patches/2020-July/549769.html

[Bug target/96144] [11 Regression] ICE in extract_insn, at recog.c:2294 since r11-1970-gfab263ab0fc10ea0

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96144

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:

https://gcc.gnu.org/g:a6645a826f58b68f68dff30e6e6e78542099d0cc

commit r11-2013-ga6645a826f58b68f68dff30e6e6e78542099d0cc
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Thu Jul 9 14:56:48 2020 -0700

    x86: Check TARGET_AVX512VL when enabling FMA

    Check TARGET_AVX512VL when enabling FMA to avoid

    gcc.target/i386/avx512er-vrsqrt28ps-3.c:25:1: error: unrecognizable insn:
    (insn 29 28 30 6 (set (reg:V8SF 108)
            (fma:V8SF (reg:V8SF 106)
                (reg:V8SF 105)
                (reg:V8SF 110)))

    when TARGET_AVX512VL isn't enabled.

            PR target/96144
            * config/i386/i386-expand.c (ix86_emit_swsqrtsf): Check
            TARGET_AVX512VL when enabling FMA.

[Bug target/96144] [11 Regression] ICE in extract_insn, at recog.c:2294 since r11-1970-gfab263ab0fc10ea0

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96144

H.J. Lu <hjl.tools at gmail dot com> changed:

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

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed for GCC 11.