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[SYCL] Add DPC++ RT support for SYCL2020 spec constants' default values #3667

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Merged
merged 9 commits into from
May 12, 2021
Merged

[SYCL] Add DPC++ RT support for SYCL2020 spec constants' default values #3667

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9d30d49
[SYCL] Add DPC++ RT support for SYCL2020 spec constants' default values
dm-vodopyanov Apr 30, 2021
41893a9
Fix comp error
dm-vodopyanov Apr 30, 2021
61b139a
Add unit tests
May 7, 2021
9f60eb7
slight improvements
May 7, 2021
37d619e
fix array size
May 7, 2021
fee456d
disable test for CUDA
May 11, 2021
894a992
Update sycl/unittests/spec_constants/DefaultValues.cpp
alexbatashev May 11, 2021
f1da5a7
Update DefaultValues.cpp
dm-vodopyanov May 11, 2021
f7a75c8
Fix clang-format
dm-vodopyanov May 11, 2021
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4 changes: 4 additions & 0 deletions sycl/include/CL/sycl/detail/pi.h
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Expand Up @@ -673,6 +673,10 @@ static const uint8_t PI_DEVICE_BINARY_OFFLOAD_KIND_SYCL = 4;
/// PropertySetRegistry::SYCL_SPECIALIZATION_CONSTANTS defined in
/// PropertySetIO.h
#define __SYCL_PI_PROPERTY_SET_SPEC_CONST_MAP "SYCL/specialization constants"
/// PropertySetRegistry::SYCL_SPEC_CONSTANTS_DEFAULT_VALUES defined in
/// PropertySetIO.h
#define __SYCL_PI_PROPERTY_SET_SPEC_CONST_DEFAULT_VALUES_MAP \
"SYCL/specialization constants default values"
/// PropertySetRegistry::SYCL_DEVICELIB_REQ_MASK defined in PropertySetIO.h
#define __SYCL_PI_PROPERTY_SET_DEVICELIB_REQ_MASK "SYCL/devicelib req mask"
/// PropertySetRegistry::SYCL_KERNEL_PARAM_OPT_INFO defined in PropertySetIO.h
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8 changes: 8 additions & 0 deletions sycl/include/CL/sycl/detail/pi.hpp
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Expand Up @@ -318,6 +318,14 @@ class DeviceBinaryImage {
/// like:
/// { ID5, 0, 4 }
const PropertyRange &getSpecConstants() const { return SpecConstIDMap; }
const PropertyRange getSpecConstantsDefaultValues() const {
// We can't have this variable as a class member, since it would break
// the ABI backwards compatibility.
DeviceBinaryImage::PropertyRange SpecConstDefaultValuesMap;
SpecConstDefaultValuesMap.init(
Bin, __SYCL_PI_PROPERTY_SET_SPEC_CONST_DEFAULT_VALUES_MAP);
return SpecConstDefaultValuesMap;
}
const PropertyRange &getDeviceLibReqMask() const { return DeviceLibReqMask; }
const PropertyRange &getKernelParamOptInfo() const {
return KernelParamOptInfo;
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16 changes: 15 additions & 1 deletion sycl/source/detail/device_image_impl.hpp
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Expand Up @@ -205,6 +205,12 @@ class device_image_impl {
MBinImage->getSpecConstants();
using SCItTy = pi::DeviceBinaryImage::PropertyRange::ConstIterator;

// get default values for specialization constants
const pi::DeviceBinaryImage::PropertyRange &SCDefValRange =
MBinImage->getSpecConstantsDefaultValues();

bool HasDefaultValues = SCDefValRange.begin() != SCDefValRange.end();

// This variable is used to calculate spec constant value offset in a
// flat byte array.
unsigned BlobOffset = 0;
Expand Down Expand Up @@ -237,12 +243,20 @@ class device_image_impl {
// supposed to be called from c'tor.
MSpecConstSymMap[std::string{SCName}].push_back(
SpecConstDescT{/*ID*/ It[0], /*CompositeOffset*/ It[1],
/*Size*/ It[2], BlobOffset});
/*Size*/ It[2], BlobOffset, HasDefaultValues});
BlobOffset += /*Size*/ It[2];
It += NumElements;
}
}
MSpecConstsBlob.resize(BlobOffset);

if (HasDefaultValues) {
pi::ByteArray DefValDescriptors =
pi::DeviceBinaryProperty(*SCDefValRange.begin()).asByteArray();
std::uninitialized_copy(&DefValDescriptors[8],
&DefValDescriptors[8] + MSpecConstsBlob.size(),
MSpecConstsBlob.data());
}
}
}

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1 change: 1 addition & 0 deletions sycl/unittests/CMakeLists.txt
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Expand Up @@ -15,4 +15,5 @@ add_subdirectory(pi)
add_subdirectory(kernel-and-program)
add_subdirectory(queue)
add_subdirectory(scheduler)
add_subdirectory(spec_constants)
add_subdirectory(thread_safety)
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