Differential D109351 Diff 373094 llvm/lib/Target/AMDGPU/R600MCInstLower.cpp

Changeset View

Standalone View

llvm/lib/Target/AMDGPU/R600MCInstLower.cpp

This file was added.

				//===- R600MCInstLower.cpp - Lower R600 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
				/// Code to lower R600 MachineInstrs to their corresponding MCInst.
				//
				//===----------------------------------------------------------------------===//
				//

				#include "AMDGPUMCInstLower.h"
				#include "R600AsmPrinter.h"
				#include "R600Subtarget.h"
				#include "llvm/CodeGen/MachineOperand.h"
				#include "llvm/MC/MCContext.h"
				#include "llvm/MC/MCExpr.h"

				class R600MCInstLower : public AMDGPUMCInstLower {
				public:
				R600MCInstLower(MCContext &ctx, const R600Subtarget &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);

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

				R600MCInstLower::R600MCInstLower(MCContext &Ctx, const R600Subtarget &ST,
				const AsmPrinter &AP)
				: AMDGPUMCInstLower(Ctx, ST, AP) {}

				void R600MCInstLower::lower(const MachineInstr *MI, MCInst &OutMI) const {
				OutMI.setOpcode(MI->getOpcode());
				for (const MachineOperand &MO : MI->explicit_operands()) {
				MCOperand MCOp;
				lowerOperand(MO, MCOp);
				OutMI.addOperand(MCOp);
				}
				}

				void R600AsmPrinter::emitInstruction(const MachineInstr *MI) {
				const R600Subtarget &STI = MF->getSubtarget<R600Subtarget>();
				R600MCInstLower MCInstLowering(OutContext, STI, *this);

				StringRef Err;
				if (!STI.getInstrInfo()->verifyInstruction(*MI, Err)) {
				LLVMContext &C = MI->getParent()->getParent()->getFunction().getContext();
				C.emitError("Illegal instruction detected: " + Err);
				MI->print(errs());
				}

				if (MI->isBundle()) {
				const MachineBasicBlock *MBB = MI->getParent();
				MachineBasicBlock::const_instr_iterator I = ++MI->getIterator();
				while (I != MBB->instr_end() && I->isInsideBundle()) {
				emitInstruction(&*I);
				++I;
				}
				} else {
				MCInst TmpInst;
				MCInstLowering.lower(MI, TmpInst);
				EmitToStreamer(*OutStreamer, TmpInst);
				}
				}

				const MCExpr R600AsmPrinter::lowerConstant(const Constant CV) {
				if (const MCExpr *E = lowerAddrSpaceCast(TM, CV, OutContext))
				return E;
				return AsmPrinter::lowerConstant(CV);
				}