[Bug target/108272] New: [13 Regression] ICE in gen_movxo, at config/rs6000/mma.md:339

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108272

            Bug ID: 108272
           Summary: [13 Regression] ICE in gen_movxo, at
                    config/rs6000/mma.md:339
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
                CC: linkw at gcc dot gnu.org
  Target Milestone: ---
            Target: powerpc-*-linux-gnu

This issue was originally reported in PR106736 comment 14.

gcc 13.0.0 20221225 snapshot (g:febb58d28bfa4b544ec7ffec2d61f46d25205ff0) ICEs
when compiling gcc/testsuite/gcc.target/powerpc/mma-builtin-3.c:

% powerpc-e300c3-linux-gnu-gcc-13 -c
gcc/testsuite/gcc.target/powerpc/mma-builtin-3.c
gcc/testsuite/gcc.target/powerpc/mma-builtin-3.c: In function 'foo1':
gcc/testsuite/gcc.target/powerpc/mma-builtin-3.c:20:10: warning: GCC vector
returned by reference: non-standard ABI extension with no compatibility
guarantee [-Wpsabi]
   20 |   vec[1] = __builtin_vsx_xvcvspbf16 (vec[0]);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
during RTL pass: expand
gcc/testsuite/gcc.target/powerpc/mma-builtin-3.c: In function 'foo0':
gcc/testsuite/gcc.target/powerpc/mma-builtin-3.c:9:3: internal compiler error:
in gen_movxo, at config/rs6000/mma.md:339
    9 |   asm ("#..." : "=d" (acc));
      |   ^~~
0x780433 gen_movxo(rtx_def*, rtx_def*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20221225/work/gcc-13-20221225/gcc/config/rs6000/mma.md:339
0xa767b7 rtx_insn* insn_gen_fn::operator()<rtx_def*, rtx_def*>(rtx_def*,
rtx_def*) const
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20221225/work/gcc-13-20221225/gcc/recog.h:407
0xa767b7 emit_move_insn_1(rtx_def*, rtx_def*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20221225/work/gcc-13-20221225/gcc/expr.cc:4172
0xa76bbf emit_move_insn(rtx_def*, rtx_def*)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20221225/work/gcc-13-20221225/gcc/expr.cc:4342
0xa7ef4e store_expr(tree_node*, rtx_def*, int, bool, bool)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20221225/work/gcc-13-20221225/gcc/expr.cc:6519
0xa81703 expand_assignment(tree_node*, tree_node*, bool)
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20221225/work/gcc-13-20221225/gcc/expr.cc:6051
0x9479f7 expand_asm_stmt
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20221225/work/gcc-13-20221225/gcc/cfgexpand.cc:3345
0x94bd29 expand_gimple_stmt_1
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20221225/work/gcc-13-20221225/gcc/cfgexpand.cc:3877
0x94bd29 expand_gimple_stmt
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20221225/work/gcc-13-20221225/gcc/cfgexpand.cc:4044
0x951d4e expand_gimple_basic_block
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20221225/work/gcc-13-20221225/gcc/cfgexpand.cc:6096
0x953866 execute
       
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-13.0.0_p20221225/work/gcc-13-20221225/gcc/cfgexpand.cc:6822