qbe-backend/test/abi1.ssa

# test calling into C with two
# large struct arguments (passed
# on the stack)

type :mem = { b 17 }

function $alpha(l %p, w %l, l %n) {
@ini
	%pe =l add %p, %n
@lop
	%p1 =l phi @ini %p, @lop %p2
	%l1 =w phi @ini %l, @lop %l2
	storeb %l1, %p1
	%p2 =l add %p1, 1
	%l2 =w add %l1, 1
	%c1 =w ceql %p1, %pe
	jnz %c1, @end, @lop
@end
	storeb 0, %pe
	ret
}

export
function $test() {
@start
	%p =l alloc4 17
	%q =l alloc4 17
	%r0 =w call $alpha(l %p, w 65, l 16)
	%r1 =w call $alpha(l %q, w 97, l 16)
	%r2 =w call $fcb(:mem %p, w 1, w 2, w 3, w 4, w 5, w 6, w 7, w 8, w 9, :mem %q)
	ret
}


# >>> driver
# #include <stdio.h>
# typedef struct { char t[17]; } mem;
# extern void test();
# void fcb(mem m, int i1, int i2, int i3, int i4, int i5, int i6, int i7, int i8, int i9, mem n) {
# 	printf("fcb: m = (mem){ t = \"%s\" }\n", m.t);
# 	printf("     n = (mem){ t = \"%s\" }\n", n.t);
# 	#define T(n) printf("     i%d = %d\n", n, i##n);
# 	T(1) T(2) T(3) T(4) T(5) T(6) T(7) T(8) T(9)
# }
# int main() { test(); return 0; }
# <<<

# >>> output
# fcb: m = (mem){ t = "ABCDEFGHIJKLMNOP" }
#      n = (mem){ t = "abcdefghijklmnop" }
#      i1 = 1
#      i2 = 2
#      i3 = 3
#      i4 = 4
#      i5 = 5
#      i6 = 6
#      i7 = 7
#      i8 = 8
#      i9 = 9
# <<<