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Polyfill this for HLSL using an atomic add with the operand negated. Fixed: tint:1130 Change-Id: Ifa32d58973f1b48593ec0f6320f47f4358a5a3a9 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/62760 Auto-Submit: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>
22 lines
674 B
Plaintext
22 lines
674 B
Plaintext
#include <metal_stdlib>
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using namespace metal;
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void atomicSub_0d26c2(threadgroup atomic_uint* const tint_symbol) {
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uint res = atomic_fetch_sub_explicit(tint_symbol, 1u, memory_order_relaxed);
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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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atomicSub_0d26c2(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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