https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111334
--- Comment #3 from chenglulu ---
This involves the template di3_fake:
(define_insn "di3_fake"
[(set (match_operand:DI 0 "register_operand" "=r,&r,&r")
(sign_extend:DI
(any_div:SI (match_operand:DI 1 "register_operand" "r,r,0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111334
--- Comment #2 from chenglulu ---
This problem occurred after adding the r14-3511 optimization.
However, during the debugging process, it was discovered that it was due to the
attempt to generate rtx during the combine pass optimization.
(set
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111334
--- Comment #1 from chenglulu ---
$ gcc test.c -o - -S -O1
test.c: 在函数‘add_startpgm’中:
test.c:33:1: 编译器内部错误：在 simplify_subreg 中，于 simplify-rtx.cc:7538
33 | }
| ^
0x13506f4 simplify_context::simplify_subreg(machine_mode, rtx_def*,
machi
