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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>
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Dawn LUCI CQ
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@@ -7,7 +7,12 @@ struct S {
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int4 tint_mod(int4 lhs, int rhs) {
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int4 const r = int4(rhs);
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return (lhs % select(r, int4(1), ((r == int4(0)) | ((lhs == int4((-2147483647 - 1))) & (r == int4(-1))))));
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int4 const rhs_or_one = select(r, int4(1), ((r == int4(0)) | ((lhs == int4((-2147483647 - 1))) & (r == int4(-1)))));
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if (any(((uint4((lhs | rhs_or_one)) & uint4(2147483648u)) != uint4(0u)))) {
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return as_type<int4>((as_type<uint4>(lhs) - as_type<uint4>(as_type<int4>((as_type<uint4>((lhs / rhs_or_one)) * as_type<uint4>(rhs_or_one))))));
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} else {
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return (lhs % rhs_or_one);
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}
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}
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void foo(device S* const tint_symbol_1) {
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