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//TEST:SIMPLE(filecheck=CHECK): -target spirv -fvk-use-entrypoint-name -emit-spirv-directly
// CHECK-DAG: OpEntryPoint Vertex
// CHECK-DAG: OpEntryPoint Fragment
// We require 1 `Flat` for the fragment input `uint`
// CHECK-DAG: OpDecorate %{{[1-9][0-9]*}} Flat
// CHECK-DAG: OpDecorate %gl_InstanceIndex BuiltIn InstanceIndex
// The vertex shader should be using the builtin InstanceIndex var.
// CHECK: %vmain = OpFunction
// CHECK: InstanceIndex
// CHECK: OpFunctionEnd
// The fragment shader should not be using the builtin InstanceIndex var.
// CHECK: %pmain = OpFunction
// CHECK-NOT: InstanceIndex
// CHECK: OpFunctionEnd
struct VIn
{
uint instanceID : SV_InstanceID;
}
struct VSOutput
{
uint instanceID : SV_InstanceID;
float4 color : COLOR;
};
[shader("vertex")]
VSOutput vmain(VIn vin) {
VSOutput t;
t.instanceID = vin.instanceID;
t.color = float4(0, 0, 0, 0);
return t;
}
[shader("pixel")]
float4 pmain(VSOutput input) : SV_TARGET
{
return float4(float(input.instanceID), input.color.xyz);
}
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