dawn-cmake/test/bug/tint/1081.wgsl.expected.hlsl
Antonio Maiorano bc5d8f6bcf Revert "HLSL: force FXC to never unroll loops"
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>
2021-11-22 19:31:56 +00:00

40 lines
784 B
HLSL

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