dawn-cmake/test/bug/tint/744.wgsl.expected.hlsl
Ben Clayton 51cfe26bb7 writer/hlsl: Simplify UBO accesses for static indexing
Use the new semantic constant value information to significantly reduce the complex indexing logic emitted for UBO accesses.
This will dramatically reduce the number of `for` loops that are decayed to `while` loops.

Change-Id: I1b0adb5edde2b4ed39c6beafc2e28106b86e0edd
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57701
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
2021-07-13 12:18:13 +00:00

30 lines
970 B
HLSL

ByteAddressBuffer firstMatrix : register(t0, space0);
ByteAddressBuffer secondMatrix : register(t1, space0);
RWByteAddressBuffer resultMatrix : register(u2, space0);
cbuffer cbuffer_uniforms : register(b3, space0) {
uint4 uniforms[2];
};
struct tint_symbol_1 {
uint3 global_id : SV_DispatchThreadID;
};
[numthreads(2, 2, 1)]
void main(tint_symbol_1 tint_symbol) {
const uint3 global_id = tint_symbol.global_id;
const uint2 resultCell = uint2(global_id.y, global_id.x);
const uint dimInner = uniforms[0].y;
const uint dimOutter = uniforms[1].y;
uint result = 0u;
{
for(uint i = 0u; (i < dimInner); i = (i + 1u)) {
const uint a = (i + (resultCell.x * dimInner));
const uint b = (resultCell.y + (i * dimOutter));
result = (result + (firstMatrix.Load((4u * a)) * secondMatrix.Load((4u * b))));
}
}
const uint index = (resultCell.y + (resultCell.x * dimOutter));
resultMatrix.Store((4u * index), asuint(result));
return;
}