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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>
24 lines
511 B
GLSL
24 lines
511 B
GLSL
#version 310 es
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layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
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void unused_entry_point() {
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return;
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}
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ivec4 tint_div(ivec4 lhs, ivec4 rhs) {
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return (lhs / mix(rhs, ivec4(1), bvec4(uvec4(equal(rhs, ivec4(0))) | uvec4(bvec4(uvec4(equal(lhs, ivec4(-2147483648))) & uvec4(equal(rhs, ivec4(-1))))))));
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}
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struct S {
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ivec4 a;
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};
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layout(binding = 0, std430) buffer v_block_ssbo {
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S inner;
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} v;
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void foo() {
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ivec4 tint_symbol = tint_div(v.inner.a, ivec4(2));
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v.inner.a = tint_symbol;
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}
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