https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97540
--- Comment #2 from Hongtao.liu <crazylht at gmail dot com> ---
2588 /* For special_memory_operand, there could be a memory operand
inside,
2589 and it would cause a mismatch for constraint_satisfied_p. */
2590 if (UNARY_P (op) && op == extract_mem_from_operand (op))
2591 op = XEXP (op, 0);
the upper code is supposed to only prevent special_memory_constraint, but
mistakenly handled below insn.
(insn 7 6 10 2 (parallel [
(asm_operands/v ("") ("") 0 [
(not:SI (mem/c:SI (symbol_ref:DI
("mt7615_add_interface_dev_0") [flags 0x2] <var_decl 0x7f623bcccb40
mt7615_add_interface_dev_0>) [1 mt7615_add_interface_dev_0+0 S4 A32]))
]
[
(asm_input:SI ("rm") test.c:2)
]
[] test.c:2)
(clobber (reg:CC 17 flags))
]) "test.c":2:18 -1
(expr_list:REG_UNUSED (reg:CC 17 flags)
(nil)))
