[Bug target/101819] [12 Regression] ICE in expand_expr_real_2, at expr.c:9552 since r12-2789-gf31da42e047e8018ca6ad9809273bc7efb6ffcaf

[marxin at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101819

--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Happens also on x86_64:

$ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr51581-3.c
-mno-mmx -Ofast -mno-sse -c
during RTL pass: expand
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr51581-3.c: In function
‘f2’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr51581-3.c:22:1:
internal compiler error: in expand_expr_real_2, at expr.c:9552
   22 | f2 (void)
      | ^~
0x6a17bb expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
        /home/marxin/Programming/gcc/gcc/expr.c:9552
0xb1d086 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        /home/marxin/Programming/gcc/gcc/expr.c:10480
0xb167a8 expand_expr
        /home/marxin/Programming/gcc/gcc/expr.h:301
0xb167a8 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
        /home/marxin/Programming/gcc/gcc/expr.c:9780
0xb1d086 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        /home/marxin/Programming/gcc/gcc/expr.c:10480
0xb2d76a expand_normal
        /home/marxin/Programming/gcc/gcc/expr.h:307
0xb2d76a store_field
        /home/marxin/Programming/gcc/gcc/expr.c:7439
0xb2cfa5 store_constructor
        /home/marxin/Programming/gcc/gcc/expr.c:7289
0xb2e6bd expand_constructor
        /home/marxin/Programming/gcc/gcc/expr.c:8634
0xb1c32a expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
        /home/marxin/Programming/gcc/gcc/expr.c:10819
0xb278a6 store_expr(tree_node*, rtx_def*, int, bool, bool)
        /home/marxin/Programming/gcc/gcc/expr.c:6064
0xb29dad expand_assignment(tree_node*, tree_node*, bool)
        /home/marxin/Programming/gcc/gcc/expr.c:5796
0x9ecffa expand_gimple_stmt_1
        /home/marxin/Programming/gcc/gcc/cfgexpand.c:3945
0x9ecffa expand_gimple_stmt
        /home/marxin/Programming/gcc/gcc/cfgexpand.c:4043
0x9f3950 expand_gimple_basic_block
        /home/marxin/Programming/gcc/gcc/cfgexpand.c:6085
0x9f58c7 execute
        /home/marxin/Programming/gcc/gcc/cfgexpand.c:6811
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