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46ee63933c
Prevents UB for divide-by-zero and integer overflow when dividing Fixed: tint:1349 Change-Id: Ieef66d27d7aec3011628ced076b2bccc7770a8af Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/108925 Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: Dan Sinclair <dsinclair@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com>
18 lines
419 B
HLSL
18 lines
419 B
HLSL
[numthreads(1, 1, 1)]
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void unused_entry_point() {
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return;
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}
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int tint_div(int lhs, int rhs) {
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return (lhs / (((rhs == 0) | ((lhs == -2147483648) & (rhs == -1))) ? 1 : rhs));
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}
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void foo() {
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int a = 0;
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float4 b = float4(0.0f, 0.0f, 0.0f, 0.0f);
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float2x2 c = float2x2(0.0f, 0.0f, 0.0f, 0.0f);
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a = tint_div(a, 2);
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b = mul(float4x4((0.0f).xxxx, (0.0f).xxxx, (0.0f).xxxx, (0.0f).xxxx), b);
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c = (c * 2.0f);
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}
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