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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>
33 lines
651 B
HLSL
33 lines
651 B
HLSL
cbuffer cbuffer_ubo : register(b0, space0) {
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uint4 ubo[1];
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};
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struct S {
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int data[64];
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};
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RWByteAddressBuffer result : register(u1, space0);
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groupshared S s;
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struct tint_symbol_2 {
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uint local_invocation_index : SV_GroupIndex;
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};
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void f_inner(uint local_invocation_index) {
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{
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for(uint idx = local_invocation_index; (idx < 64u); idx = (idx + 1u)) {
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const uint i = idx;
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s.data[i] = 0;
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}
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}
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GroupMemoryBarrierWithGroupSync();
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s.data[asint(ubo[0].x)] = 1;
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result.Store(0u, asuint(s.data[3]));
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}
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[numthreads(1, 1, 1)]
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void f(tint_symbol_2 tint_symbol_1) {
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f_inner(tint_symbol_1.local_invocation_index);
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return;
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}
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