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bc5d8f6bcf
This reverts commit 11d09f2fe7c006b78f7319e876e4ced43f0c1a60. Reason for revert: Failing roll of Tint to Dawn: https://dawn-review.googlesource.com/c/dawn/+/70100 Original change's description: > HLSL: force FXC to never unroll loops > > Emit the "[loop]" attribute on "for" and "while" so that FXC does not > attempt to unroll them. This is to work around an FXC bug where it fails > to unroll loops with gradient operations. > > FXC ostensibly unrolls such loops because gradient operations require > uniform control flow, and loops that have varying iterations may > possibly not be uniform. Tint will eventually validate that control flow > is indeed uniform, so forcing FXC to avoid unrolling in these cases > should be fine. > > Bug: tint:1112 > Change-Id: I10077f8b62fbbb230a0003f3864c75a8fe0e1d18 > Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/69880 > Kokoro: Kokoro <noreply+kokoro@google.com> > Reviewed-by: Ben Clayton <bclayton@google.com> > Commit-Queue: Antonio Maiorano <amaiorano@google.com> # Not skipping CQ checks because original CL landed > 1 day ago. Bug: tint:1112 Change-Id: I8e8f3c0abfa6e6bc5d0e67af9428a46ef867d5c1 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/70540 Reviewed-by: Antonio Maiorano <amaiorano@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Antonio Maiorano <amaiorano@google.com>
28 lines
775 B
HLSL
28 lines
775 B
HLSL
cbuffer cbuffer_constants : register(b0, space0) {
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uint4 constants[1];
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};
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Texture2DArray<float4> myTexture : register(t1, space0);
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RWByteAddressBuffer result : register(u3, space0);
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struct tint_symbol_1 {
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uint3 GlobalInvocationID : SV_DispatchThreadID;
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};
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void main_inner(uint3 GlobalInvocationID) {
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uint flatIndex = ((((2u * 2u) * GlobalInvocationID.z) + (2u * GlobalInvocationID.y)) + GlobalInvocationID.x);
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flatIndex = (flatIndex * 1u);
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float4 texel = myTexture.Load(int4(int3(int2(GlobalInvocationID.xy), 0), 0));
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{
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for(uint i = 0u; (i < 1u); i = (i + 1u)) {
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result.Store((4u * (flatIndex + i)), asuint(texel.r));
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}
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}
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}
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[numthreads(1, 1, 1)]
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void main(tint_symbol_1 tint_symbol) {
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main_inner(tint_symbol.GlobalInvocationID);
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return;
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}
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