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f09378397e
per-function subtarget. Currently, code-gen passes the default or generic subtarget to the constructors of MCInstPrinter subclasses (see LLVMTargetMachine::addPassesToEmitFile), which enables some targets (AArch64, ARM, and X86) to change their instprinter's behavior based on the subtarget feature bits. Since the backend can now use different subtargets for each function, instprinter has to be changed to use the per-function subtarget rather than the default subtarget. This patch takes the first step towards enabling instprinter to change its behavior based on the per-function subtarget. It adds a bit "PassSubtarget" to AsmWriter which tells table-gen to pass a reference to MCSubtargetInfo to the various print methods table-gen auto-generates. I will follow up with changes to instprinters of AArch64, ARM, and X86. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233411 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
//===-- BPFInstPrinter.h - Convert BPF MCInst to asm syntax -------*- 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 class prints a BPF MCInst to a .s file.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_BPF_INSTPRINTER_BPFINSTPRINTER_H
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#define LLVM_LIB_TARGET_BPF_INSTPRINTER_BPFINSTPRINTER_H
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#include "llvm/MC/MCInstPrinter.h"
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namespace llvm {
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class MCOperand;
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class BPFInstPrinter : public MCInstPrinter {
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public:
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BPFInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII,
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const MCRegisterInfo &MRI)
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: MCInstPrinter(MAI, MII, MRI) {}
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void printInst(const MCInst *MI, raw_ostream &O, StringRef Annot,
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const MCSubtargetInfo &STI) override;
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void printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O,
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const char *Modifier = nullptr);
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void printMemOperand(const MCInst *MI, int OpNo, raw_ostream &O,
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const char *Modifier = nullptr);
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void printImm64Operand(const MCInst *MI, unsigned OpNo, raw_ostream &O);
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// Autogenerated by tblgen.
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void printInstruction(const MCInst *MI, raw_ostream &O);
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static const char *getRegisterName(unsigned RegNo);
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};
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}
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#endif
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