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//TEST:SIMPLE(filecheck=SPV): -target spirv -O0
// Test that we can defer buffer loads by ruling out potential aliasing writes.
struct Bottom
{
float bigArray[1024];
float bottomGetValue(int index)
{
// RWStructuredBuffer is considered to not alias with anything else.
// this write should not prevent deferring loading bigArray.
gOther[0] = 100;
// this write should not prevent deferring loading bigArray.
gSharedVar = 1;
// this write should not prevent deferring loading bigArray.
gStaticVar = 2;
// We should return the value from bigArray from a previously loaded value of `this`.
return bigArray[index];
}
}
struct Root
{
Bottom bottom1;
Bottom bottom2;
}
uniform Root* gRoot;
uniform RWStructuredBuffer<int> gOther;
static int gStaticVar;
groupshared int gSharedVar;
RWStructuredBuffer<float> outputBuffer;
[shader("compute")]
[numthreads(1, 1, 1)]
void compute_main(uint3 tid: SV_DispatchThreadID)
{
// SPV: OpEntryPoint
// SPV-NOT: OpLoad %Bottom_natural
outputBuffer[0] = gRoot.bottom1.bottomGetValue(0);
}
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