dawn-cmake/test/tint/statements/discard/atomic_cmpxchg.wgsl.expected.glsl
Ben Clayton 47dd30117d tint/resolver: Resolve builtin structs
Allow the resolver to understand builtin structures, like
__frexp_result_f16. This allows backend transforms to declare the types,
even if they're "untypable" by the user.

Bug: chromium:1430309
Change-Id: I392709118182a058f737ccf1b7b46fc6b0b7264d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/129482
Kokoro: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
2023-04-26 18:27:53 +00:00

48 lines
1.0 KiB
GLSL

#version 310 es
precision highp float;
struct atomic_compare_exchange_result_i32 {
int old_value;
bool exchanged;
};
bool tint_discarded = false;
struct tint_symbol_1 {
int old_value;
bool exchanged;
};
layout(location = 0) out int value;
layout(binding = 0, std430) buffer a_block_ssbo {
int inner;
} a;
int foo() {
tint_discarded = true;
int x = 0;
tint_symbol_1 tint_symbol = tint_symbol_1(0, false);
if (!(tint_discarded)) {
atomic_compare_exchange_result_i32 atomic_compare_result;
atomic_compare_result.old_value = atomicCompSwap(a.inner, 0, 1);
atomic_compare_result.exchanged = atomic_compare_result.old_value == 0;
atomic_compare_exchange_result_i32 tint_symbol_2 = atomic_compare_result;
tint_symbol.old_value = tint_symbol_2.old_value;
tint_symbol.exchanged = tint_symbol_2.exchanged;
}
tint_symbol_1 result = tint_symbol;
if (result.exchanged) {
x = result.old_value;
}
return x;
}
void main() {
int inner_result = foo();
value = inner_result;
if (tint_discarded) {
discard;
}
return;
}