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1e8839302b
This implements the review suggestion to simplify the AArch64 backend. If we later discover that we *really* need the extra complexity of the ConstantIslands pass for performance reasons it can be resurrected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175258 91177308-0d34-0410-b5e6-96231b3b80d8
81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
// AArch64AsmPrinter.h - Print machine code to an AArch64 .s file -*- C++ -*-=//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the AArch64 assembly printer class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_AARCH64ASMPRINTER_H
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#define LLVM_AARCH64ASMPRINTER_H
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#include "AArch64.h"
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#include "AArch64TargetMachine.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/Support/Compiler.h"
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namespace llvm {
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class MCOperand;
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class LLVM_LIBRARY_VISIBILITY AArch64AsmPrinter : public AsmPrinter {
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/// Subtarget - Keep a pointer to the AArch64Subtarget around so that we can
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/// make the right decision when printing asm code for different targets.
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const AArch64Subtarget *Subtarget;
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// emitPseudoExpansionLowering - tblgen'erated.
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bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
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const MachineInstr *MI);
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public:
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explicit AArch64AsmPrinter(TargetMachine &TM, MCStreamer &Streamer)
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: AsmPrinter(TM, Streamer) {
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Subtarget = &TM.getSubtarget<AArch64Subtarget>();
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}
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bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp) const;
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MCOperand lowerSymbolOperand(const MachineOperand &MO,
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const MCSymbol *Sym) const;
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void EmitInstruction(const MachineInstr *MI);
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void EmitEndOfAsmFile(Module &M);
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bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
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unsigned AsmVariant, const char *ExtraCode,
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raw_ostream &O);
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bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
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unsigned AsmVariant, const char *ExtraCode,
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raw_ostream &O);
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void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS);
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/// printSymbolicAddress - Given some kind of reasonably bare symbolic
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/// reference, print out the appropriate asm string to represent it. If
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/// appropriate, a relocation-specifier will be produced, composed of a
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/// general class derived from the MO parameter and an instruction-specific
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/// suffix, provided in Suffix. E.g. ":got_lo12:" if a Suffix of "lo12" is
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/// given.
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bool printSymbolicAddress(const MachineOperand &MO,
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bool PrintImmediatePrefix,
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StringRef Suffix, raw_ostream &O);
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MachineLocation getDebugValueLocation(const MachineInstr *MI) const;
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virtual const char *getPassName() const {
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return "AArch64 Assembly Printer";
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}
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virtual bool runOnMachineFunction(MachineFunction &MF);
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};
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} // end namespace llvm
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#endif
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