[Bug target/97963] New: [11 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2228 (error: insn does not satisfy its constraints)

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97963

            Bug ID: 97963
           Summary: [11 Regression] ICE: in extract_constrain_insn_cached,
                    at recog.c:2228 (error: insn does not satisfy its
                    constraints)
           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: asolokha at gmx dot com
  Target Milestone: ---
            Target: powerpc-*-linux-gnu

gcc-11.0.0-alpha20201122 snapshot (g:e23f47ec4065e9eec53c4ad9db91bc36a4f90793)
ICEs when compiling the following testcase, extracted from
gcc/testsuite/gcc.target/powerpc/pr96125.c, w/ -m32:

void
__attribute__((target("cpu=power10")))
test0 (__vector_quad *dst)
{
  __vector_quad acc;
  __builtin_mma_xxsetaccz (&acc);
  *dst = acc;
}

% powerpc-e300c3-linux-gnu-gcc-11.0.0 -m32 -c wqugxu8a.c
wqugxu8a.c: In function 'test0':
wqugxu8a.c:8:1: error: insn does not satisfy its constraints:
    8 | }
      | ^
(insn 44 43 45 (set (mem/c:OO (reg/f:SI 9 9 [123]) [2 acc+0 S32 A512])
        (reg:OO 32 0)) "wqugxu8a.c":6:3 2211 {*movoo}
     (nil))
during RTL pass: shorten
wqugxu8a.c:8:1: internal compiler error: in extract_constrain_insn_cached, at
recog.c:2228
0x67ed88 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201122/work/gcc-11-20201122/gcc/rtl-error.c:108
0x67edb4 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201122/work/gcc-11-20201122/gcc/rtl-error.c:118
0x67d522 extract_constrain_insn_cached(rtx_insn*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201122/work/gcc-11-20201122/gcc/recog.c:2228
0x14afb98 insn_default_length(rtx_insn*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201122/work/gcc-11-20201122/gcc/config/rs6000/rs6000.md:8226
0xa7d031 shorten_branches(rtx_insn*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201122/work/gcc-11-20201122/gcc/final.c:1119
0xa7d073 rest_of_handle_shorten_branches
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201122/work/gcc-11-20201122/gcc/final.c:4771
0xa7d073 execute
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20201122/work/gcc-11-20201122/gcc/final.c:4800