dawn-cmake/test/bug/tint/757.wgsl.expected.hlsl
David Neto 889b77a2a1 writer: avoid type breakage during AppendVector
When building a vector via tint::writer::AppendVector, and the
vector argument is already a vector constructor, expand that
vector constructor into its components only when those components
are all scalars.  This avoids a type breakage which can occur with cases
like this:

 vector argument is:
	  vec2<i32>(vec2<u32>(0u,1u))
 scalar argument is:
          2

Before this fix, the result was:
  vec2<i32>(0u, 1u, 2);

But should be this instead:
  vec3<i32>(vec2<u32>(0u,1u),2)

This was noticed in SPIR-V writer output when forming a coordinate
vector from a an unsigned WGSL coordinate vector with a signed array
vector.

Fixed: tint:1048
Change-Id: Id46665739cc23da0ca58b9baabf7b4531b86350b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60040
Auto-Submit: David Neto <dneto@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: David Neto <dneto@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-07-28 16:31:36 +00:00

25 lines
749 B
HLSL

cbuffer cbuffer_constants : register(b0, space0) {
uint4 constants[1];
};
Texture2DArray<float4> myTexture : register(t1, space0);
RWByteAddressBuffer result : register(u3, space0);
struct tint_symbol_1 {
uint3 GlobalInvocationID : SV_DispatchThreadID;
};
[numthreads(1, 1, 1)]
void main(tint_symbol_1 tint_symbol) {
const uint3 GlobalInvocationID = tint_symbol.GlobalInvocationID;
uint flatIndex = ((((2u * 2u) * GlobalInvocationID.z) + (2u * GlobalInvocationID.y)) + GlobalInvocationID.x);
flatIndex = (flatIndex * 1u);
float4 texel = myTexture.Load(int4(int3(int2(GlobalInvocationID.xy), 0), 0));
{
for(uint i = 0u; (i < 1u); i = (i + 1u)) {
result.Store((4u * (flatIndex + i)), asuint(texel.r));
}
}
return;
}