[Bug target/97140] New: [10/11 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[Bug target/97140] New: [10/11 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

            Bug ID: 97140
           Summary: [10/11 Regression] ICE in error: unable to generate
                    reloads for since r10-400-gecfdb16c54ad06ac
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: hjl.tools at gmail dot com
  Target Milestone: ---

The following is causing ICE:

$ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/pr48084-2.c
-mno-mmx -c
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/pr48084-2.c: In
function '_mm_maskmove_si64':
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/pr48084-2.c:10:1:
error: unable to generate reloads for:
   10 | }
      | ^
(insn 11 10 14 2 (set (mem:V8QI (reg/f:DI 84) [0  S8 A8])
        (unspec:V8QI [
                (reg:V8QI 83 [ _2 ])
                (reg:V8QI 82 [ _1 ])
                (mem:V8QI (reg/f:DI 84) [0  S8 A8])
            ] UNSPEC_MASKMOV))
"/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/pr48084-2.c":9:5
1391 {*mmx_maskmovq}
     (expr_list:REG_DEAD (reg/f:DI 84)
        (expr_list:REG_DEAD (reg:V8QI 83 [ _2 ])
            (expr_list:REG_DEAD (reg:V8QI 82 [ _1 ])
                (nil)))))
during RTL pass: reload
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/pr48084-2.c:10:1:
internal compiler error: in curr_insn_transform, at lra-constraints.c:4074
0x6baeff _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /home/marxin/Programming/gcc/gcc/rtl-error.c:108
0x699f26 curr_insn_transform
        /home/marxin/Programming/gcc/gcc/lra-constraints.c:4074
0xc1e676 lra_constraints(bool)
        /home/marxin/Programming/gcc/gcc/lra-constraints.c:5100
0xc0b7bc lra(_IO_FILE*)
        /home/marxin/Programming/gcc/gcc/lra.c:2415
0xbc6c81 do_reload
        /home/marxin/Programming/gcc/gcc/ira.c:5529
0xbc6c81 execute
        /home/marxin/Programming/gcc/gcc/ira.c:5715
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/97140] [10/11 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |x86_64-*-* i?86-*-*
   Target Milestone|---                         |10.3

[Bug target/97140] [10/11 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2020-09-21
     Ever confirmed|0                           |1
                URL|                            |https://gcc.gnu.org/piperma
                   |                            |il/gcc-patches/2020-Septemb
                   |                            |er/554383.html
           Keywords|                            |patch

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
A patch is posted at

https://gcc.gnu.org/pipermail/gcc-patches/2020-September/554383.html

[Bug target/97140] [10/11 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
The updated patch:

https://gcc.gnu.org/pipermail/gcc-patches/2020-September/554383.html

[Bug target/97140] [10/11 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2

[Bug target/97140] [10/11 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
The real updated patch:

https://gcc.gnu.org/pipermail/gcc-patches/2020-September/554385.html

[Bug target/97140] [10/11 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

--- Comment #4 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:6058b874ef98af1104a5cb4618e1f3bfa7e3761c

commit r11-4632-g6058b874ef98af1104a5cb4618e1f3bfa7e3761c
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon Sep 21 05:33:46 2020 -0700

    x86: Also require MMX for __builtin_ia32_maskmovq

    MMX emulation with SEE is implemented at MMX intrinsic level, not at MMX
    instruction level.  _mm_maskmove_si64 intrinsic for "MASKMOVQ mm1, mm2"
    is emulated with __builtin_ia32_maskmovdqu.  Since SSE "MASKMOVQ mm1, mm2"
    builtin function, __builtin_ia32_maskmovq, can't be emulated with XMM
    registers, make __builtin_ia32_maskmovq also require MMX instead of SSE
    only.

    gcc/

            PR target/97140
            * config/i386/i386-expand.c (ix86_expand_builtin): Require MMX
            for __builtin_ia32_maskmovq.

    gcc/testsuite/

            PR target/97140
            * gcc.target/i386/pr97140.c: New test.

[Bug target/97140] [10/11 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|10.3                        |10.4

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 10.3 is being released, retargeting bugs to GCC 10.4.

[Bug target/97140] [10/11/12 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

Arseny Solokha <asolokha at gmx dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |asolokha at gmx dot com

--- Comment #6 from Arseny Solokha <asolokha at gmx dot com> ---
In fact, it is just [10 Regression] for quite some time already.

[Bug target/97140] [10/11/12/13 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|10.4                        |10.5

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 10.4 is being released, retargeting bugs to GCC 10.5.

[Bug target/97140] [11/12/13/14 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|10.5                        |11.5

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 10 branch is being closed.

[Bug target/97140] [11/12/13/14 Regression] ICE in error: unable to generate reloads for since r10-400-gecfdb16c54ad06ac

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97140

Jeffrey A. Law <law at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |law at gcc dot gnu.org
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #9 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Per c#4 and c#6.