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Unify mem and runtime logic

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This commit is contained in:
gingerBill
2022-08-26 16:45:40 +01:00
parent 026900c7f0
commit 027ea587fc
1 changed files with 1 additions and 42 deletions
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43
core/mem/mem.odin
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@@ -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 {