Antonio Maiorano ec20758675 tint: polyfill remainder to handle negative operands
Bug: tint:1802
Change-Id: Ie9baa045feda08523e5ca4f5ce94b6db7d4477e5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/119100
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2023-02-10 15:01:02 +00:00

22 lines
624 B
Plaintext

#include <metal_stdlib>
using namespace metal;
struct S {
/* 0x0000 */ int a;
};
int tint_mod(int lhs, int rhs) {
int const rhs_or_one = select(rhs, 1, bool((rhs == 0) | bool((lhs == (-2147483647 - 1)) & (rhs == -1))));
if (any(((uint((lhs | rhs_or_one)) & 2147483648u) != 0u))) {
return as_type<int>((as_type<uint>(lhs) - as_type<uint>(as_type<int>((as_type<uint>((lhs / rhs_or_one)) * as_type<uint>(rhs_or_one))))));
} else {
return (lhs % rhs_or_one);
}
}
void foo(device S* const tint_symbol_1) {
int const tint_symbol = tint_mod((*(tint_symbol_1)).a, 2);
(*(tint_symbol_1)).a = tint_symbol;
}