qbe-backend/test/strcmp.ssa

# the C strcmp function generated by scc

export function w $strcmp(l %s1.3.val,l %s2.5.val)
{
@.37
	%s1.3 =l	alloc8	8
	%s2.5 =l	alloc8	8
		storel	%s1.3.val,%s1.3
		storel	%s2.5.val,%s2.5
		jmp	@.5
@.6
	%.9 =l	loadl	%s1.3
	%.10 =l	add	%.9,1
		storel	%.10,%s1.3
	%.11 =l	loadl	%s2.5
	%.12 =l	add	%.11,1
		storel	%.12,%s2.5
@.5
	%.15 =l	loadl	%s1.3
	%.16 =w	loadsb	%.15
	%.17 =w	extsb	%.16
	%.18 =w	cnew	%.17,0
		jnz	%.18,@.14,@.8
@.14
	%.19 =l	loadl	%s2.5
	%.20 =w	loadsb	%.19
	%.21 =w	extsb	%.20
	%.22 =w	cnew	%.21,0
		jnz	%.22,@.13,@.8
@.13
	%.23 =l	loadl	%s1.3
	%.24 =w	loadsb	%.23
	%.25 =w	extsb	%.24
	%.26 =l	loadl	%s2.5
	%.27 =w	loadsb	%.26
	%.28 =w	extsb	%.27
	%.29 =w	ceqw	%.25,%.28
		jnz	%.29,@.6,@.8
@.8
@.7
	%.30 =l	loadl	%s1.3
	%.31 =w	loadub	%.30
	%.32 =w	extub	%.31
	%.33 =l	loadl	%s2.5
	%.34 =w	loadub	%.33
	%.35 =w	extub	%.34
	%.36 =w	sub	%.32,%.35
		ret	%.36
}

# >>> driver
# extern int strcmp(const char *, const char *);
# int main() {
# 	char a[] = "Hello world";
# 	return !(
# 		strcmp(a, a) == 0 &&
# 		strcmp("aaa", "aab") < 0 &&
# 		strcmp("..cnn", "..bbc") > 0 &&
# 		strcmp(a, "Hellp ...") < 0 &&
# 		strcmp(a, "Hello vorld") > 0
# 	);
# }
# <<<