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49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
/*========================== begin_copyright_notice ============================
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Copyright (C) 2019-2021 Intel Corporation
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SPDX-License-Identifier: MIT
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============================= end_copyright_notice ===========================*/
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#include "common/LLVMWarningsPush.hpp"
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#include <optional>
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#include "common/LLVMWarningsPop.hpp"
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#include "Compiler/CISACodeGen/ComputeShaderBase.hpp"
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#include "Compiler/CISACodeGen/CSWalkOrder.hpp"
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#include <iStdLib/utility.h>
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using namespace llvm;
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namespace IGC {
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CComputeShaderBase::CComputeShaderBase(Function *pFunc, CShaderProgram *pProgram, GenericShaderState &GState)
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: CShader(pFunc, pProgram, GState) {}
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CComputeShaderBase::~CComputeShaderBase() {}
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std::optional<CS_WALK_ORDER> CComputeShaderBase::checkLegalWalkOrder(const std::array<uint32_t, 3> &Dims,
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const WorkGroupWalkOrderMD &WO) {
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auto is_pow2 = [](uint32_t dim) { return iSTD::IsPowerOfTwo(dim); };
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const int walkorder_x = WO.dim0;
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const int walkorder_y = WO.dim1;
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const int walkorder_z = WO.dim2;
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const uint32_t dim_x = Dims[0];
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const uint32_t dim_y = Dims[1];
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const uint32_t dim_z = Dims[2];
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uint order0 = (walkorder_x == 0) ? 0 : (walkorder_y == 0) ? 1 : 2;
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uint order1 = (walkorder_x == 1) ? 0 : (walkorder_y == 1) ? 1 : 2;
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if (order0 != order1 &&
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((order0 == 0 && is_pow2(dim_x)) || (order0 == 1 && is_pow2(dim_y)) || (order0 == 2 && is_pow2(dim_z))) &&
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((order1 == 0 && is_pow2(dim_x)) || (order1 == 1 && is_pow2(dim_y)) || (order1 == 2 && is_pow2(dim_z)))) {
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// Legal walk order for HW auto-gen
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return getWalkOrderInPass(order0, order1);
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}
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return std::nullopt;
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}
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} // namespace IGC
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