dawn-cmake/test/bug/tint/1081.wgsl
Antonio Maiorano 8bc1a3045d HLSL: workaround FXC sometimes failing with 'not all control paths return a result' in functions with discard
To fix this, we trick the compiler by wrapping the function body with an
if (true) { <function body> } followed by returning an unused value of
the return type.

Bug: tint:1081
Change-Id: I763bf768f40d07a1045f0a70017bb40d488c8428
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/68822
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2021-11-10 14:38:34 +00:00

19 lines
252 B
WebGPU Shading Language

fn f(x : i32) -> i32 {
if (x == 10) {
discard;
}
return x;
}
[[stage(fragment)]]
fn main([[location(1)]] x: vec3<i32>) -> [[location(2)]] i32 {
var y = x.x;
loop {
let r = f(y);
if (r == 0) {
break;
}
}
return y;
}