[PATCH][PR target/97540] Don't extract memory from operand for normal memory constraint.

[Hongtao Liu]

Hi:
  For inline asm, there could be an operand like (not (mem:)), it's
not a valid operand for normal memory constraint.
  Bootstrap is ok, regression test is ok for make check
RUNTESTFLAGS="--target_board='unix{-m32,}'"

gcc/ChangeLog
        PR target/97540
        * ira.c: (ira_setup_alts): Extract memory from operand only
        for special memory constraint.
        * recog.c (asm_operand_ok): Ditto.
        * lra-constraints.c (process_alt_operands): MEM_P is
        required for normal memory constraint.

gcc/testsuite/ChangeLog
        * gcc.target/i386/pr97540.c: New test.

--
BR,
Hongtao
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