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1a1b5278d5
Change the DecomposeMemoryAccess to behave more like the DirectVariableAccess transform, in that it'll inline the access of buffer variable into the load / store helper functions, instead of passing the array down. This avoids large array copies observed with FXC, which can have *severe* performance costs. Fixed: tint:1819 Change-Id: I52eb3f908813f72ab9da446743e24a2637158309 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/121460 Kokoro: Kokoro <noreply+kokoro@google.com> Auto-Submit: Ben Clayton <bclayton@google.com> Reviewed-by: James Price <jrprice@google.com> Commit-Queue: James Price <jrprice@google.com>
18 lines
428 B
HLSL
18 lines
428 B
HLSL
RWByteAddressBuffer ssbo : register(u0, space0);
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float2x2 ssbo_load(uint offset) {
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return float2x2(asfloat(ssbo.Load2((offset + 0u))), asfloat(ssbo.Load2((offset + 8u))));
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}
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void ssbo_store(uint offset, float2x2 value) {
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ssbo.Store2((offset + 0u), asuint(value[0u]));
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ssbo.Store2((offset + 8u), asuint(value[1u]));
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}
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[numthreads(1, 1, 1)]
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void f() {
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const float2x2 v = ssbo_load(0u);
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ssbo_store(0u, v);
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return;
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}
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