Differential D109351 Diff 371272 llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.h

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llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.h

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				//===- AMDGPUMCInstLower.h - Lower AMDGPU MachineInstr to an MCInst -------===//
				//
				// 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
				//
				//===----------------------------------------------------------------------===//
				//
				/// \file
				/// Header of lower AMDGPU MachineInstrs to their corresponding MCInst.
				//
				//===----------------------------------------------------------------------===//
				//

				#ifndef LLVM_LIB_TARGET_AMDGPUMCINSTLOWER_H
				Lint: Pre-merge checks Inline Actions clang-tidy: warning: header guard does not follow preferred style [llvm-header-guard] not useful Lint: Pre-merge checks: clang-tidy: warning: header guard does not follow preferred style [llvm-header-guard] [[https…
				#define LLVM_LIB_TARGET_AMDGPUMCINSTLOWER_H

				#include "AMDGPUTargetMachine.h"
				#include "llvm/IR/Constants.h"
				#include "llvm/Support/Casting.h"

				namespace llvm {
				class AsmPrinter;
				class MCContext;
				} // namespace llvm

				using namespace llvm;

				class AMDGPUMCInstLower {
				MCContext &Ctx;
				const TargetSubtargetInfo &ST;
				const AsmPrinter &AP;

				public:
				AMDGPUMCInstLower(MCContext &ctx, const TargetSubtargetInfo &ST,
				Lint: Pre-merge checks Inline Actions clang-tidy: warning: invalid case style for parameter 'ctx' [readability-identifier-naming] not useful Lint: Pre-merge checks: clang-tidy: warning: invalid case style for parameter 'ctx' [readability-identifier-naming]…
				const AsmPrinter &AP);

				bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp) const;

				/// Lower a MachineInstr to an MCInst
				void lower(const MachineInstr *MI, MCInst &OutMI) const;
				};

				namespace {
				const MCExpr lowerAddrSpaceCast(const TargetMachine &TM, const Constant CV,
				Lint: Pre-merge checks Inline Actions clang-tidy: warning: unused function 'lowerAddrSpaceCast' [clang-diagnostic-unused-function] not useful clang-tidy: warning: function 'lowerAddrSpaceCast' defined in a header file; function definitions in header files can lead to ODR violations [misc-definitions-in-headers] not useful Lint: Pre-merge checks: clang-tidy: warning: unused function 'lowerAddrSpaceCast' [clang-diagnostic-unused-function]…
				MCContext &OutContext) {
				// TargetMachine does not support llvm-style cast. Use C++-style cast.
				// This is safe since TM is always of type AMDGPUTargetMachine or its
				// derived class.
				auto &AT = static_cast<const AMDGPUTargetMachine &>(TM);
				auto *CE = dyn_cast<ConstantExpr>(CV);

				// Lower null pointers in private and local address space.
				// Clang generates addrspacecast for null pointers in private and local
				// address space, which needs to be lowered.
				if (CE && CE->getOpcode() == Instruction::AddrSpaceCast) {
				auto Op = CE->getOperand(0);
				Lint: Pre-merge checks Inline Actions clang-tidy: warning: 'auto Op' can be declared as 'auto Op' [llvm-qualified-auto] not useful Lint: Pre-merge checks:* clang-tidy: warning: 'auto Op' can be declared as 'auto *Op' [llvm-qualified-auto] [[https…
				auto SrcAddr = Op->getType()->getPointerAddressSpace();
				if (Op->isNullValue() && AT.getNullPointerValue(SrcAddr) == 0) {
				auto DstAddr = CE->getType()->getPointerAddressSpace();
				return MCConstantExpr::create(AT.getNullPointerValue(DstAddr),
				OutContext);
				}
				}
				return nullptr;
				}
				} // namespace
				#endif // LLVM_LIB_TARGET_AMDGPUMCINSTLOWER_H