Unify mem and runtime logic

core/mem/mem.odin

@@ -54,48 +54,7 @@ compare :: proc "contextless" (a, b: []byte) -> int {
 }
 
 compare_byte_ptrs :: proc "contextless" (a, b: ^byte, n: int) -> int #no_bounds_check {
-	switch {
-	case a == b:
-		return 0
-	case a == nil:
-		return -1
-	case b == nil:
-		return -1
-	case n == 0:
-		return 0
-	}
-
-	x := slice_ptr(a, n)
-	y := slice_ptr(b, n)
-
-	SU :: size_of(uintptr)
-	fast := n/SU + 1
-	offset := (fast-1)*SU
-	curr_block := 0
-	if n < SU {
-		fast = 0
-	}
-
-	la := slice_ptr((^uintptr)(a), fast)
-	lb := slice_ptr((^uintptr)(b), fast)
-
-	for /**/; curr_block < fast; curr_block += 1 {
-		if la[curr_block] ~ lb[curr_block] != 0 {
-			for pos := curr_block*SU; pos < n; pos += 1 {
-				if x[pos] ~ y[pos] != 0 {
-					return (int(x[pos]) - int(y[pos])) < 0 ? -1 : +1
-				}
-			}
-		}
-	}
-
-	for /**/; offset < n; offset += 1 {
-		if x[offset] ~ y[offset] != 0 {
-			return (int(x[offset]) - int(y[offset])) < 0 ? -1 : +1
-		}
-	}
-
-	return 0
+	return runtime.memory_compare(a, b, n)
 }
 
 check_zero :: proc(data: []byte) -> bool {