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51be3420b8
GLSL has the same behavior as MSL, in that -2147483648 is parsed as a unary minus on '2147483648'. 2147483648 overflows an i32, so this actually gets treated as -0. Change-Id: Ibebd8b78a8840f18c438ed1d3d24dee486a65816 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/123202 Reviewed-by: Stephen White <senorblanco@chromium.org> Commit-Queue: Ben Clayton <bclayton@google.com> Commit-Queue: Ben Clayton <bclayton@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com>
29 lines
679 B
GLSL
29 lines
679 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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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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ivec4 tint_mod(ivec4 lhs, int rhs) {
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ivec4 r = ivec4(rhs);
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ivec4 rhs_or_one = mix(r, ivec4(1), bvec4(uvec4(equal(r, ivec4(0))) | uvec4(bvec4(uvec4(equal(lhs, ivec4((-2147483647 - 1)))) & uvec4(equal(r, ivec4(-1)))))));
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if (any(notEqual((uvec4((lhs | rhs_or_one)) & uvec4(2147483648u)), uvec4(0u)))) {
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return (lhs - ((lhs / rhs_or_one) * 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() {
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v.inner.a = tint_mod(v.inner.a, 2);
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}
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