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9569e2c790
By generating a helper function for these, we can keep the atomic expression pre-statement-free. This can help prevent for-loops from being transformed into while loops. Change-Id: Id034ea5ea9be601661ddb78db973015d845c420f Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57463 Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@google.com> Auto-Submit: Ben Clayton <bclayton@google.com> Reviewed-by: James Price <jrprice@google.com>
30 lines
769 B
Plaintext
30 lines
769 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(device 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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struct SB_RW {
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/* 0x0000 */ atomic_int arg_0;
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};
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void atomicCompareExchangeWeak_12871c(device SB_RW& sb_rw) {
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int2 res = atomicCompareExchangeWeak_1(&(sb_rw.arg_0), 1, 1);
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}
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fragment void fragment_main(device SB_RW& sb_rw [[buffer(0)]]) {
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atomicCompareExchangeWeak_12871c(sb_rw);
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return;
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}
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kernel void compute_main(device SB_RW& sb_rw [[buffer(0)]]) {
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atomicCompareExchangeWeak_12871c(sb_rw);
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return;
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}
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