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* [Bug target/104462] New: ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave
@ 2022-02-09 12:26 zsojka at seznam dot cz
  2022-02-09 13:16 ` [Bug target/104462] " ubizjak at gmail dot com
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: zsojka at seznam dot cz @ 2022-02-09 12:26 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104462

            Bug ID: 104462
           Summary: ICE: in extract_constrain_insn_cached, at
                    recog.cc:2682 with -mavx512fp16 -mno-xsave
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu

Created attachment 52389
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52389&action=edit
reduced testcase

Compiler output:
$ x86_64-pc-linux-gnu-gcc -mavx512fp16 -mno-xsave testcase.c 
testcase.c: In function 'foo':
testcase.c:9:1: error: insn does not satisfy its constraints:
    9 | }
      | ^
(insn 127 9 11 2 (set (reg:V8HF 23 xmm3 [orig:87 _8 ] [87])
        (xor:V8HF (reg:V8HF 21 xmm1 [orig:86 _7 ] [86])
            (reg:V8HF 20 xmm0 [104]))) "testcase.c":8:8 2830 {*xorv8hf3}
     (nil))
during RTL pass: shorten
testcase.c:9:1: internal compiler error: in extract_constrain_insn_cached, at
recog.cc:2682
0x7680ff _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /repo/gcc-trunk/gcc/rtl-error.cc:108
0x768185 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /repo/gcc-trunk/gcc/rtl-error.cc:118
0x7570ad extract_constrain_insn_cached(rtx_insn*)
        /repo/gcc-trunk/gcc/recog.cc:2682
0x1b25c07 insn_default_length(rtx_insn*)
        /repo/gcc-trunk/gcc/config/i386/i386.md:18585
0xfbce3c shorten_branches(rtx_insn*)
        /repo/gcc-trunk/gcc/final.cc:1105
0xfbcf3f rest_of_handle_shorten_branches
        /repo/gcc-trunk/gcc/final.cc:4380
0xfbcf3f execute
        /repo/gcc-trunk/gcc/final.cc:4409
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r12-7124-20220209171435-g59b31f0e2d1-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
--with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r12-7124-20220209171435-g59b31f0e2d1-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.1 20220209 (experimental) (GCC)

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug target/104462] ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave
  2022-02-09 12:26 [Bug target/104462] New: ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave zsojka at seznam dot cz
@ 2022-02-09 13:16 ` ubizjak at gmail dot com
  2022-02-09 19:20 ` cvs-commit at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: ubizjak at gmail dot com @ 2022-02-09 13:16 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104462

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-02-09
             Status|UNCONFIRMED                 |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |ubizjak at gmail dot com

--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> ---
-mno-xsave should also disable ISA2 flags.

diff --git a/gcc/common/config/i386/i386-common.cc
b/gcc/common/config/i386/i386-common.cc
index 607e9f20e85..449df6351c9 100644
--- a/gcc/common/config/i386/i386-common.cc
+++ b/gcc/common/config/i386/i386-common.cc
@@ -206,7 +206,8 @@ along with GCC; see the file COPYING3.  If not see
   (OPTION_MASK_ISA_XSAVE | OPTION_MASK_ISA_XSAVEOPT_UNSET \
    | OPTION_MASK_ISA_XSAVES_UNSET | OPTION_MASK_ISA_XSAVEC_UNSET \
    | OPTION_MASK_ISA_AVX_UNSET)
-#define OPTION_MASK_ISA2_XSAVE_UNSET OPTION_MASK_ISA2_AMX_TILE_UNSET
+#define OPTION_MASK_ISA2_XSAVE_UNSET \
+  (OPTION_MASK_ISA2_AVX2_UNSET | OPTION_MASK_ISA2_AMX_TILE_UNSET)
 #define OPTION_MASK_ISA_XSAVEOPT_UNSET OPTION_MASK_ISA_XSAVEOPT
 #define OPTION_MASK_ISA_AVX2_UNSET \
   (OPTION_MASK_ISA_AVX2 | OPTION_MASK_ISA_AVX512F_UNSET)

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug target/104462] ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave
  2022-02-09 12:26 [Bug target/104462] New: ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave zsojka at seznam dot cz
  2022-02-09 13:16 ` [Bug target/104462] " ubizjak at gmail dot com
@ 2022-02-09 19:20 ` cvs-commit at gcc dot gnu.org
  2022-02-09 22:26 ` cvs-commit at gcc dot gnu.org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-02-09 19:20 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104462

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Uros Bizjak <uros@gcc.gnu.org>:

https://gcc.gnu.org/g:2f9ab267e725ddf2b6b44113e4fc4fb8b2a6adfb

commit r12-7147-g2f9ab267e725ddf2b6b44113e4fc4fb8b2a6adfb
Author: Uros Bizjak <ubizjak@gmail.com>
Date:   Wed Feb 9 20:19:45 2022 +0100

    i386: -mno-xsave should disable all relevant ISA flags [PR104462]

    2022-02-09  Uroš Bizjak  <ubizjak@gmail.com>

    gcc/ChangeLog:

            PR target/104462
            * common/config/i386/i386-common.cc (OPTION_MASK_ISA2_XSAVE_UNSET):
            Also include OPTION_MASK_ISA2_AVX2_UNSET.

    gcc/testsuite/ChangeLog:

            PR target/104462
            * gcc.target/i386/pr104462.c: New test.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug target/104462] ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave
  2022-02-09 12:26 [Bug target/104462] New: ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave zsojka at seznam dot cz
  2022-02-09 13:16 ` [Bug target/104462] " ubizjak at gmail dot com
  2022-02-09 19:20 ` cvs-commit at gcc dot gnu.org
@ 2022-02-09 22:26 ` cvs-commit at gcc dot gnu.org
  2022-02-09 22:44 ` ubizjak at gmail dot com
  2022-02-16 16:07 ` jakub at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-02-09 22:26 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104462

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Uros Bizjak <uros@gcc.gnu.org>:

https://gcc.gnu.org/g:f8a496d7a28c3dda868c201621b001825ea6cef9

commit r11-9549-gf8a496d7a28c3dda868c201621b001825ea6cef9
Author: Uros Bizjak <ubizjak@gmail.com>
Date:   Wed Feb 9 23:25:27 2022 +0100

    i386: -mno-xsave should disable all relevant ISA flags [PR104462]

    2022-02-09  Uroš Bizjak  <ubizjak@gmail.com>

    gcc/ChangeLog:

            PR target/104462
            * common/config/i386/i386-common.c (OPTION_MASK_ISA2_XSAVE_UNSET):
            Also include OPTION_MASK_ISA2_AVX2_UNSET.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug target/104462] ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave
  2022-02-09 12:26 [Bug target/104462] New: ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave zsojka at seznam dot cz
                   ` (2 preceding siblings ...)
  2022-02-09 22:26 ` cvs-commit at gcc dot gnu.org
@ 2022-02-09 22:44 ` ubizjak at gmail dot com
  2022-02-16 16:07 ` jakub at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: ubizjak at gmail dot com @ 2022-02-09 22:44 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104462

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |11.4
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Uroš Bizjak <ubizjak at gmail dot com> ---
Fixed for gcc-11.4+.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug target/104462] ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave
  2022-02-09 12:26 [Bug target/104462] New: ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave zsojka at seznam dot cz
                   ` (3 preceding siblings ...)
  2022-02-09 22:44 ` ubizjak at gmail dot com
@ 2022-02-16 16:07 ` jakub at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2022-02-16 16:07 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104462

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
*** Bug 104448 has been marked as a duplicate of this bug. ***

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2022-02-16 16:07 UTC | newest]

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2022-02-09 12:26 [Bug target/104462] New: ICE: in extract_constrain_insn_cached, at recog.cc:2682 with -mavx512fp16 -mno-xsave zsojka at seznam dot cz
2022-02-09 13:16 ` [Bug target/104462] " ubizjak at gmail dot com
2022-02-09 19:20 ` cvs-commit at gcc dot gnu.org
2022-02-09 22:26 ` cvs-commit at gcc dot gnu.org
2022-02-09 22:44 ` ubizjak at gmail dot com
2022-02-16 16:07 ` jakub at gcc dot gnu.org

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