53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
//===- MachineSSAContext.cpp ------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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/// \file
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///
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/// This file defines a specialization of the GenericSSAContext<X>
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/// template class for Machine IR.
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///
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/MachineSSAContext.h"
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#include "llvm/CodeGen/MachineBasicBlock.h"
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#include "llvm/CodeGen/MachineInstr.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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MachineBasicBlock *MachineSSAContext::getEntryBlock(MachineFunction &F) {
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return &F.front();
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}
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void MachineSSAContext::setFunction(MachineFunction &Fn) {
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MF = &Fn;
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RegInfo = &MF->getRegInfo();
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}
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Printable MachineSSAContext::print(MachineBasicBlock *Block) const {
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return Printable([Block](raw_ostream &Out) { Block->printName(Out); });
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}
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Printable MachineSSAContext::print(MachineInstr *I) const {
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return Printable([I](raw_ostream &Out) { I->print(Out); });
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}
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Printable MachineSSAContext::print(Register Value) const {
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auto *MRI = RegInfo;
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return Printable([MRI, Value](raw_ostream &Out) {
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Out << printReg(Value, MRI->getTargetRegisterInfo(), 0, MRI);
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if (Value) {
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// Try to print the definition.
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if (auto *Instr = MRI->getUniqueVRegDef(Value)) {
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Out << ": ";
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Instr->print(Out);
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}
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}
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});
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}
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