Re: RFA: PR target/53120, constraint modifier "+" on operand tied by matching-constraint, "0".

[DJ Delorie]

#define q ((char *)0x1234)

foo(int x)
{
  *q |= (1 << (char)x);
}

$ m32c-elf-gcc -S -O3 nick.c

        .global _foo
_foo:                                    
        mov.w   r1,a0                    ; 20                           
movhi_op/3
        bset    4660[a0]                 ; 11                           bset_qi
        rts                              ; 23                           
epilogue_rts