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//TEST:SIMPLE(filecheck=CHECK): -target spirv -entry computeMain -stage compute -emit-spirv-directly
// Check that we are not generating spirv that loads a global resource array into a SSA register,
// instead, these arrays should always be accessed via direct OpAccessChain operations to avoid
// creating a lot of local load/stores in the driver compiler.
struct Scene
{
SamplerState samplers[256];
Texture2D textures[100];
}
ParameterBlock<Scene> scene;
struct Material
{
int sampler;
int texture;
}
RWStructuredBuffer<float4> result;
float4 shade(Scene scene, Material mat)
{
return scene.textures[mat.texture].SampleLevel(scene.samplers[mat.sampler], float2(0,0), 0);
}
[numthreads(1,1,1)]
void computeMain(uniform Material mat)
{
// CHECK: OpEntryPoint
// CHECK-NOT: OpLoad {{.*}} %scene{{.*}}samplers
// CHECK-NOT: OpLoad {{.*}} %scene{{.*}}textures
result[0] = shade(scene, mat);
}
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