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>
This commit is contained in:
Antonio Maiorano
2023-02-10 15:01:02 +00:00
committed by Dawn LUCI CQ
parent 78583a14e6
commit ec20758675
103 changed files with 1660 additions and 554 deletions

View File

@@ -2,7 +2,12 @@
ivec3 tint_mod(ivec3 lhs, int rhs) {
ivec3 r = ivec3(rhs);
return (lhs % mix(r, ivec3(1), bvec3(uvec3(equal(r, ivec3(0))) | uvec3(bvec3(uvec3(equal(lhs, ivec3(-2147483648))) & uvec3(equal(r, ivec3(-1))))))));
ivec3 rhs_or_one = mix(r, ivec3(1), bvec3(uvec3(equal(r, ivec3(0))) | uvec3(bvec3(uvec3(equal(lhs, ivec3(-2147483648))) & uvec3(equal(r, ivec3(-1)))))));
if (any(notEqual((uvec3((lhs | rhs_or_one)) & uvec3(2147483648u)), uvec3(0u)))) {
return (lhs - ((lhs / rhs_or_one) * rhs_or_one));
} else {
return (lhs % rhs_or_one);
}
}
void f() {