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https://github.com/c64scene-ar/llvm-6502.git
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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
70 lines
2.9 KiB
C++
70 lines
2.9 KiB
C++
//==- SystemZInstPrinter.h - Convert SystemZ MCInst to assembly --*- 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 SystemZ MCInst to a .s file.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_SYSTEMZ_INSTPRINTER_SYSTEMZINSTPRINTER_H
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#define LLVM_LIB_TARGET_SYSTEMZ_INSTPRINTER_SYSTEMZINSTPRINTER_H
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#include "llvm/MC/MCInstPrinter.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 SystemZInstPrinter : public MCInstPrinter {
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public:
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SystemZInstPrinter(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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// Automatically generated 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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// Print an address with the given base, displacement and index.
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static void printAddress(unsigned Base, int64_t Disp, unsigned Index,
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raw_ostream &O);
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// Print the given operand.
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static void printOperand(const MCOperand &MO, raw_ostream &O);
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// Override MCInstPrinter.
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void printRegName(raw_ostream &O, unsigned RegNo) const override;
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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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private:
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// Print various types of operand.
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void printOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printBDAddrOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printBDXAddrOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printBDLAddrOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printU4ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printU6ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printS8ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printU8ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printS16ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printU16ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printS32ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printU32ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printPCRelOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printPCRelTLSOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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void printAccessRegOperand(const MCInst *MI, int OpNum, raw_ostream &O);
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// Print the mnemonic for a condition-code mask ("ne", "lh", etc.)
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// This forms part of the instruction name rather than the operand list.
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void printCond4Operand(const MCInst *MI, int OpNum, raw_ostream &O);
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};
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} // end namespace llvm
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#endif
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