[sdcc-devel] assign from compare

[Scott D. <sc...@da...>]

Consider this code:


unsigned char success = 0;
unsigned char failures = 0;

int main(void)
{

  success = failures != 0;

}


$ sdcc -c -mmcs51 t.c

generates:

;	genCmpEq
	mov	a,_failures
	jnz	00103$
	mov	a,#0x01
	sjmp	00104$
00103$:
	clr	a
00104$:
;	genNot
; Peephole 105   removed redundant mov
	mov  r2,a
	cjne	a,#0x01,00105$
00105$:
	clr	a
	rlc	a
	mov	_success,a
00101$:
	ret

The cjne looks fishy. Is that jump right?

Scott