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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>
17 lines
381 B
Plaintext
17 lines
381 B
Plaintext
#include <metal_stdlib>
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using namespace metal;
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int tint_div(int lhs, int rhs) {
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return (lhs / select(rhs, 1, bool((rhs == 0) | bool((lhs == (-2147483647 - 1)) & (rhs == -1)))));
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}
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void foo() {
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int a = 0;
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float4 b = 0.0f;
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float2x2 c = float2x2(0.0f);
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a = tint_div(a, 2);
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b = (b * float4x4(float4(0.0f), float4(0.0f), float4(0.0f), float4(0.0f)));
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c = (c * 2.0f);
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}
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