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// pointer-self-reference.slang
//TEST:SIMPLE(filecheck=CHECK): -target cuda -entry computeMain -stage compute
//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=BUFFER): -slang -compute -output-using-type -shaderobj
//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=BUFFER): -vk -compute -output-using-type -shaderobj
//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=BUFFER): -cuda -compute -output-using-type -shaderobj
//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
RWStructuredBuffer<int> outputBuffer;
struct Thing
{
int value;
int bigArray[128];
// Check that we are not inserting local variables that are copies of `this` parameter.
// CHECK: __device__ int Thing_getSum{{.*}}Thing{{.*}}*{{.*}}this{{.*}})
// CHECK-NOT: Thing{{[a-zA-Z0-9_]*}} {{[a-zA-Z0-9_]+}}
// CHECK: }
[constref]
int getSum()
{
int result = 0;
for (int i = 0; i < 128; i++)
{
result += bigArray[i];
}
return result;
}
};
// Check that we are not inserting local variables that are copies of `thing` parameter.
// CHECK: __device__ int test{{.*}}Thing{{.*}}*{{.*}}thing{{.*}})
// CHECK-NOT: Thing{{[a-zA-Z0-9_]*}} {{[a-zA-Z0-9_]+}}
// CHECK: }
int test(__constref Thing thing)
{
int sum0 = thing.getSum();
AllMemoryBarrier();
int sum1 = thing.getSum();
return sum0 + sum1;
}
int caller(Thing thing)
{
return test(thing);
}
[numthreads(1, 1, 1)]
void computeMain(int3 dispatchThreadID: SV_DispatchThreadID)
{
int idx = dispatchThreadID.x;
Thing thing = {};
thing.bigArray[0] = 100;
thing.bigArray[99] = 1;
// BUFFER: 202
outputBuffer[idx] = caller(thing);
}
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