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f1f56b2d3c
WGSL states that `f32` is a IEEE-754 binary32. mediump precision guarantees are much smaller than highp, and using mediump can break code generated by tint. Change-Id: I8a129c4c8ac078c785e0d5d7d21f19ed6b3620b5 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/123400 Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: Stephen White <senorblanco@chromium.org>
48 lines
1.0 KiB
GLSL
48 lines
1.0 KiB
GLSL
#version 310 es
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precision highp float;
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struct atomic_compare_exchange_resulti32 {
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int old_value;
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bool exchanged;
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};
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bool tint_discarded = false;
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struct tint_symbol_1 {
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int old_value;
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bool exchanged;
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};
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layout(location = 0) out int value;
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layout(binding = 0, std430) buffer a_block_ssbo {
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int inner;
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} a;
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int foo() {
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tint_discarded = true;
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int x = 0;
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tint_symbol_1 tint_symbol = tint_symbol_1(0, false);
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if (!(tint_discarded)) {
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atomic_compare_exchange_resulti32 atomic_compare_result;
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atomic_compare_result.old_value = atomicCompSwap(a.inner, 0, 1);
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atomic_compare_result.exchanged = atomic_compare_result.old_value == 0;
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atomic_compare_exchange_resulti32 tint_symbol_2 = atomic_compare_result;
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tint_symbol.old_value = tint_symbol_2.old_value;
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tint_symbol.exchanged = tint_symbol_2.exchanged;
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}
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tint_symbol_1 result = tint_symbol;
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if (result.exchanged) {
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x = result.old_value;
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}
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return x;
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}
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void main() {
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int inner_result = foo();
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value = inner_result;
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if (tint_discarded) {
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discard;
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}
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return;
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}
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