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Now that I've landed this change to Dawn to disable FXC optimizations: https://dawn-review.googlesource.com/c/dawn/+/70700,, we can reland this change. The Tint-into-Dawn roll was failing because FXC would miscompile certain loops into infinite loops when not unrolled. Also reland test/bug/fxc/gradient_in_varying_loop/1112.wgsl.expected.hlsl Bug: tint:1112 Bug: dawn:1203 Change-Id: I641d68864b833e0fbe3b117d397b89ae96482536 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/71000 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Commit-Queue: Antonio Maiorano <amaiorano@google.com>
33 lines
1003 B
HLSL
33 lines
1003 B
HLSL
ByteAddressBuffer firstMatrix : register(t0, space0);
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ByteAddressBuffer secondMatrix : register(t1, space0);
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RWByteAddressBuffer resultMatrix : register(u2, space0);
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cbuffer cbuffer_uniforms : register(b3, space0) {
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uint4 uniforms[2];
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};
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struct tint_symbol_1 {
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uint3 global_id : SV_DispatchThreadID;
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};
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void main_inner(uint3 global_id) {
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const uint2 resultCell = uint2(global_id.y, global_id.x);
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const uint dimInner = uniforms[0].y;
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const uint dimOutter = uniforms[1].y;
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uint result = 0u;
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{
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[loop] for(uint i = 0u; (i < dimInner); i = (i + 1u)) {
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const uint a = (i + (resultCell.x * dimInner));
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const uint b = (resultCell.y + (i * dimOutter));
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result = (result + (firstMatrix.Load((4u * a)) * secondMatrix.Load((4u * b))));
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}
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}
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const uint index = (resultCell.y + (resultCell.x * dimOutter));
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resultMatrix.Store((4u * index), asuint(result));
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}
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[numthreads(2, 2, 1)]
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void main(tint_symbol_1 tint_symbol) {
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main_inner(tint_symbol.global_id);
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return;
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}
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