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//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
// Confirm that a SideEffectFree mutable method does not get DCE'd when
// it is called from within a loop.
struct C
{
int a;
[mutating]
int add()
{
a++;
return a;
}
[mutating]
void init()
{
a = 0;
}
}
int doSomething(C d_in)
{
C d = d_in;
int rs = 0;
for (int i = 0; i < 10; i++)
rs = d.add();
return rs;
}
//TEST_INPUT:ubuffer(data=[0], stride=4):out, name outputBuffer
RWStructuredBuffer<int> outputBuffer;
[numthreads(1, 1, 1)]
void computeMain(int3 dispatchThreadID : SV_DispatchThreadID)
{
int tid = dispatchThreadID.x;
C c;
c.init();
outputBuffer[tid] = doSomething(c);
}
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