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//===- AttrToLLVMConverter.cpp - SPIR-V attributes conversion to LLVM -C++ ===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include <mlir/Conversion/SPIRVCommon/AttrToLLVMConverter.h>
namespace mlir {
namespace {
//===----------------------------------------------------------------------===//
// Constants
//===----------------------------------------------------------------------===//
constexpr unsigned defaultAddressSpace = 0;
//===----------------------------------------------------------------------===//
// Utility functions
//===----------------------------------------------------------------------===//
static unsigned
storageClassToOCLAddressSpace(spirv::StorageClass storageClass) {
// Based on
// https://registry.khronos.org/SPIR-V/specs/unified1/OpenCL.ExtendedInstructionSet.100.html#_binary_form
// and clang/lib/Basic/Targets/SPIR.h.
switch (storageClass) {
case spirv::StorageClass::Function:
return 0;
case spirv::StorageClass::Input:
case spirv::StorageClass::CrossWorkgroup:
return 1;
case spirv::StorageClass::UniformConstant:
return 2;
case spirv::StorageClass::Workgroup:
return 3;
case spirv::StorageClass::Generic:
return 4;
case spirv::StorageClass::DeviceOnlyINTEL:
return 5;
case spirv::StorageClass::HostOnlyINTEL:
return 6;
default:
return defaultAddressSpace;
}
}
} // namespace
unsigned storageClassToAddressSpace(spirv::ClientAPI clientAPI,
spirv::StorageClass storageClass) {
switch (clientAPI) {
case spirv::ClientAPI::OpenCL:
return storageClassToOCLAddressSpace(storageClass);
default:
return defaultAddressSpace;
}
}
} // namespace mlir
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