[Bug target/81843] New: ICE in gen_vec_cmpv2dfv2di, at config/aarch64/aarch64-simd.md:2561

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81843

            Bug ID: 81843
           Summary: ICE in gen_vec_cmpv2dfv2di, at
                    config/aarch64/aarch64-simd.md:2561
           Product: gcc
           Version: 8.0
            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
  Target Milestone: ---
              Host: x86_64-linux-gnu
            Target: aarch64-linux-gnu

Using cross-compiler I see ICE on:

aarch64-linux-gnu-gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/execute/ieee/pr50310.c
-fno-trapping-math -O3
during RTL pass: expand
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/execute/ieee/pr50310.c:
In function ‘foo’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/execute/ieee/pr50310.c:27:19:
internal compiler error: in gen_vec_cmpv2dfv2di, at
config/aarch64/aarch64-simd.md:2561
     s3[8 * 4 + i] = __builtin_islessgreater (s1[i], s2[i]) ? -1.0 : 0.0;
     ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x104495d gen_vec_cmpv2dfv2di(rtx_def*, rtx_def*, rtx_def*, rtx_def*)
        .././../gcc/config/aarch64/aarch64-simd.md:2561
0x104556d gen_vcondv2dfv2df(rtx_def*, rtx_def*, rtx_def*, rtx_def*, rtx_def*,
rtx_def*)
        .././../gcc/config/aarch64/aarch64-simd.md:2671
0xa687b8 maybe_expand_insn(insn_code, unsigned int, expand_operand*)
        .././../gcc/optabs.c:7104
0xa687b8 expand_insn(insn_code, unsigned int, expand_operand*)
        .././../gcc/optabs.c:7135
0xa692b0 expand_vec_cond_expr(tree_node*, tree_node*, tree_node*, tree_node*,
rtx_def*)
        .././../gcc/optabs.c:5682
0x82db17 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
        .././../gcc/expr.c:9559
0x81b93f expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        .././../gcc/expr.c:9795
0x828b34 expand_expr
        .././../gcc/expr.h:276
0x828b34 expand_assignment(tree_node*, tree_node*, bool)
        .././../gcc/expr.c:4955
0x710c08 expand_gimple_stmt_1
        .././../gcc/cfgexpand.c:3653
0x710c08 expand_gimple_stmt
        .././../gcc/cfgexpand.c:3751
0x712ca7 expand_gimple_basic_block
        .././../gcc/cfgexpand.c:5753
0x718e5e execute
        .././../gcc/cfgexpand.c:6360