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b85e692aa7
This matches the term used in the WGSL spec. Change-Id: I4603332b828450c126ef806f1064ed54f372013f Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/78787 Reviewed-by: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com>
30 lines
998 B
Plaintext
30 lines
998 B
Plaintext
#include <metal_stdlib>
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using namespace metal;
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template <typename A, typename T>
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vec<T, 2> atomicCompareExchangeWeak_1(threadgroup A* atomic, T compare, T value) {
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T prev_value = compare;
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bool matched = atomic_compare_exchange_weak_explicit(atomic, &prev_value, value, memory_order_relaxed, memory_order_relaxed);
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return {prev_value, matched};
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}
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void atomicCompareExchangeWeak_b2ab2c(threadgroup atomic_uint* const tint_symbol) {
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uint2 res = atomicCompareExchangeWeak_1(tint_symbol, 1u, 1u);
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}
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void compute_main_inner(uint local_invocation_index, threadgroup atomic_uint* const tint_symbol_1) {
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{
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atomic_store_explicit(tint_symbol_1, uint(), memory_order_relaxed);
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}
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threadgroup_barrier(mem_flags::mem_threadgroup);
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atomicCompareExchangeWeak_b2ab2c(tint_symbol_1);
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}
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kernel void compute_main(uint local_invocation_index [[thread_index_in_threadgroup]]) {
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threadgroup atomic_uint tint_symbol_2;
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compute_main_inner(local_invocation_index, &(tint_symbol_2));
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return;
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}
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