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https://github.com/c64scene-ar/llvm-6502.git
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5a719fcb5e
on patch to r166433. rdar://12470317 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166488 91177308-0d34-0410-b5e6-96231b3b80d8
96 lines
3.2 KiB
C++
96 lines
3.2 KiB
C++
//===-- llvm/MC/MCParsedAsmOperand.h - Asm Parser Operand -------*- 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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#ifndef LLVM_MC_MCASMOPERAND_H
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#define LLVM_MC_MCASMOPERAND_H
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namespace llvm {
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class SMLoc;
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class raw_ostream;
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/// MCParsedAsmOperand - This abstract class represents a source-level assembly
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/// instruction operand. It should be subclassed by target-specific code. This
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/// base class is used by target-independent clients and is the interface
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/// between parsing an asm instruction and recognizing it.
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class MCParsedAsmOperand {
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/// MCOperandNum - The corresponding MCInst operand number. Only valid when
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/// parsing MS-style inline assembly.
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unsigned MCOperandNum;
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/// Constraint - The constraint on this operand. Only valid when parsing
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/// MS-style inline assembly.
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std::string Constraint;
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public:
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MCParsedAsmOperand() {}
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virtual ~MCParsedAsmOperand() {}
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void setConstraint(StringRef C) { Constraint = C.str(); }
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StringRef getConstraint() { return Constraint; }
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void setMCOperandNum (unsigned OpNum) { MCOperandNum = OpNum; }
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unsigned getMCOperandNum() { return MCOperandNum; }
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unsigned getNameLen() {
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assert (getStartLoc().isValid() && "Invalid StartLoc!");
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assert (getEndLoc().isValid() && "Invalid EndLoc!");
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return getEndLoc().getPointer() - getStartLoc().getPointer();
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}
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StringRef getName() {
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return StringRef(getStartLoc().getPointer(), getNameLen());
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}
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/// isToken - Is this a token operand?
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virtual bool isToken() const = 0;
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/// isImm - Is this an immediate operand?
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virtual bool isImm() const = 0;
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/// isReg - Is this a register operand?
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virtual bool isReg() const = 0;
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virtual unsigned getReg() const = 0;
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/// isMem - Is this a memory operand?
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virtual bool isMem() const = 0;
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virtual unsigned getMemSize() const { return 0; }
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/// getStartLoc - Get the location of the first token of this operand.
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virtual SMLoc getStartLoc() const = 0;
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/// getEndLoc - Get the location of the last token of this operand.
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virtual SMLoc getEndLoc() const = 0;
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/// isOffsetOf - Do we need to emit code to get the offset of the variable,
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/// rather then the value of the variable? Only valid when parsing MS-style
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/// inline assembly.
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virtual bool isOffsetOf() const { return false; }
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/// getOffsetOfLoc - Get the location of the offset operator.
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virtual SMLoc getOffsetOfLoc() const { return SMLoc(); }
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/// needSizeDirective - Do we need to emit a sizing directive for this
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/// operand? Only valid when parsing MS-style inline assembly.
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virtual bool needSizeDirective() const { return false; }
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/// print - Print a debug representation of the operand to the given stream.
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virtual void print(raw_ostream &OS) const = 0;
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/// dump - Print to the debug stream.
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virtual void dump() const;
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};
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//===----------------------------------------------------------------------===//
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// Debugging Support
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inline raw_ostream& operator<<(raw_ostream &OS, const MCParsedAsmOperand &MO) {
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MO.print(OS);
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return OS;
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}
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} // end namespace llvm.
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#endif
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