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//TEST_CATEGORY(wave, compute)
//TEST:COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-vk -compute -shaderobj -emit-spirv-directly
//TEST:COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-vk -compute -shaderobj -emit-spirv-via-glsl
//TEST:COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-cuda -capability cuda_sm_7_0 -compute -shaderobj
//TEST:COMPARE_COMPUTE_EX(filecheck-buffer=CHECK):-vk -compute -shaderobj -emit-spirv-directly -xslang -DUSE_GLSL_SYNTAX -allow-glsl
//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0], stride=4):out,name outputBuffer
RWStructuredBuffer<uint> outputBuffer;
#if defined(USE_GLSL_SYNTAX)
#define __partitionedInclusiveMax subgroupPartitionedInclusiveMaxNV
#define __partitionedExclusiveMax subgroupPartitionedExclusiveMaxNV
#else
#define __partitionedInclusiveMax WaveMultiPrefixInclusiveMax
#define __partitionedExclusiveMax WaveMultiPrefixExclusiveMax
#endif
static bool isFirstInPartition = false;
static uint gSmaller = 0;
static uint gLarger = 0;
static uint gMaxValue = 0;
__generic<T : __BuiltinArithmeticType>
bool test1MinMax(uint4 mask)
{
let smaller = T(gSmaller);
let maxValue = T(gMaxValue);
// The larger values are set to be the last in the partition, exclusive variants will never get these values.
bool exclusiveRes = true
& (__partitionedExclusiveMax(maxValue, mask) == smaller)
;
// Do not check exclusive prefix for the first invocation in partition as their values(identity values) depend on the builtin type `T`. It would be
// nice to have something like T::min or T::max.
if (isFirstInPartition)
{
exclusiveRes = true;
}
return true
& (__partitionedInclusiveMax(maxValue, mask) == maxValue)
& exclusiveRes
;
}
__generic<T : __BuiltinArithmeticType, let N : int>
bool testVMinMax(uint4 mask) {
typealias GVec = vector<T, N>;
let smaller = GVec(T(gSmaller));
let maxValue = GVec(T(gMaxValue));
// The larger values are set to be the last in the partition, exclusive variants will never get these values.
bool exclusiveRes = true
& all(__partitionedExclusiveMax(maxValue, mask) == smaller)
;
// Do not check exclusive prefix for the first invocation in partition as their values(identity values) depend on the builtin type `T`. It would be
// nice to have something like T::min or T::max.
if (isFirstInPartition)
{
exclusiveRes = true;
}
return true
& all(__partitionedInclusiveMax(maxValue, mask) == maxValue)
& exclusiveRes;
;
}
bool testMinMax(uint4 mask)
{
return true
& test1MinMax<int>(mask)
& testVMinMax<int, 2>(mask)
& testVMinMax<int, 3>(mask)
& testVMinMax<int, 4>(mask)
& test1MinMax<uint>(mask)
& testVMinMax<uint, 2>(mask)
& testVMinMax<uint, 3>(mask)
& testVMinMax<uint, 4>(mask)
& test1MinMax<float>(mask)
& testVMinMax<float, 2>(mask)
& testVMinMax<float, 3>(mask)
& testVMinMax<float, 4>(mask)
& test1MinMax<double>(mask)
& testVMinMax<double, 2>(mask)
& testVMinMax<double, 3>(mask)
& testVMinMax<double, 4>(mask)
& test1MinMax<int8_t>(mask)
& testVMinMax<int8_t, 2>(mask)
& testVMinMax<int8_t, 3>(mask)
& testVMinMax<int8_t, 4>(mask)
& test1MinMax<int16_t>(mask)
& testVMinMax<int16_t, 2>(mask)
& testVMinMax<int16_t, 3>(mask)
& testVMinMax<int16_t, 4>(mask)
& test1MinMax<int64_t>(mask)
& testVMinMax<int64_t, 2>(mask)
& testVMinMax<int64_t, 3>(mask)
& testVMinMax<int64_t, 4>(mask)
& test1MinMax<uint8_t>(mask)
& testVMinMax<uint8_t, 2>(mask)
& testVMinMax<uint8_t, 3>(mask)
& testVMinMax<uint8_t, 4>(mask)
& test1MinMax<uint16_t>(mask)
& testVMinMax<uint16_t, 2>(mask)
& testVMinMax<uint16_t, 3>(mask)
& testVMinMax<uint16_t, 4>(mask)
& test1MinMax<uint64_t>(mask)
& testVMinMax<uint64_t, 2>(mask)
& testVMinMax<uint64_t, 3>(mask)
& testVMinMax<uint64_t, 4>(mask)
& test1MinMax<half>(mask)
& testVMinMax<half, 2>(mask)
& testVMinMax<half, 3>(mask)
& testVMinMax<half, 4>(mask)
;
}
[numthreads(32, 1, 1)]
[shader("compute")]
[MaximallyReconverges]
void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
{
let index = dispatchThreadID.x;
// Split into two groups, first group has 15 invocations/lanes and second group has 17.
let isSecondGroup = index >= 15;
uint4 mask = isSecondGroup ? uint4(0xFFFF8000, 0, 0, 0) : uint4(0x0007FFF, 0, 0, 0);
isFirstInPartition = (index == 0) || (index == 15);
let isLastInPartition = (index == 14) || (index == 31);
gSmaller = isSecondGroup ? 2 : 0;
gLarger = isSecondGroup ? 3 : 1;
gMaxValue = isLastInPartition ? gLarger : gSmaller;
bool result = true
& testMinMax(mask)
;
// CHECK-COUNT-32: 1
outputBuffer[index] = uint(result);
}
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