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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>
40 lines
784 B
HLSL
40 lines
784 B
HLSL
bug/tint/1081.wgsl:9:25 warning: integral user-defined fragment inputs must have a flat interpolation attribute
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fn main([[location(1)]] x: vec3<i32>) -> [[location(2)]] i32 {
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^
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int f(int x) {
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if (true) {
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if ((x == 10)) {
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discard;
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}
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return x;
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}
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int unused;
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return unused;
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}
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struct tint_symbol_1 {
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int3 x : TEXCOORD1;
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};
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struct tint_symbol_2 {
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int value : SV_Target2;
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};
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int main_inner(int3 x) {
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int y = x.x;
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while (true) {
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const int r = f(y);
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if ((r == 0)) {
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break;
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}
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}
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return y;
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}
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tint_symbol_2 main(tint_symbol_1 tint_symbol) {
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const int inner_result = main_inner(tint_symbol.x);
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tint_symbol_2 wrapper_result = (tint_symbol_2)0;
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wrapper_result.value = inner_result;
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return wrapper_result;
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}
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