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7384a2de02
It broke the CMake build: "Cannot find source file: WebAssemblyRegNumbering.cpp" llvm-svn: 252897
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
//=- WebAssemblyInstPrinter.cpp - WebAssembly assembly instruction printing -=//
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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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/// \file
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/// \brief Print MCInst instructions to wasm format.
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///
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//===----------------------------------------------------------------------===//
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#include "InstPrinter/WebAssemblyInstPrinter.h"
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#include "WebAssembly.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCInstrInfo.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/MC/MCSymbol.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/FormattedStream.h"
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#include "llvm/Target/TargetRegisterInfo.h"
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#include <cctype>
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using namespace llvm;
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#define DEBUG_TYPE "asm-printer"
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#include "WebAssemblyGenAsmWriter.inc"
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WebAssemblyInstPrinter::WebAssemblyInstPrinter(const MCAsmInfo &MAI,
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const MCInstrInfo &MII,
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const MCRegisterInfo &MRI)
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: MCInstPrinter(MAI, MII, MRI) {}
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void WebAssemblyInstPrinter::printRegName(raw_ostream &OS,
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unsigned RegNo) const {
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if (TargetRegisterInfo::isPhysicalRegister(RegNo))
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OS << getRegisterName(RegNo);
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else
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OS << TargetRegisterInfo::virtReg2Index(RegNo);
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}
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void WebAssemblyInstPrinter::printInst(const MCInst *MI, raw_ostream &OS,
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StringRef Annot,
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const MCSubtargetInfo &STI) {
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printInstruction(MI, OS);
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printAnnotation(OS, Annot);
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unsigned NumDefs = MII.get(MI->getOpcode()).getNumDefs();
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assert(NumDefs <= 1 &&
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"Instructions with multiple result values not implemented");
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if (NumDefs != 0) {
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OS << "\n"
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"\t" "set_local ";
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printRegName(OS, MI->getOperand(0).getReg());
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OS << ", pop";
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}
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}
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void WebAssemblyInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
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raw_ostream &O) {
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const MCOperand &Op = MI->getOperand(OpNo);
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if (Op.isReg()) {
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if (OpNo < MII.get(MI->getOpcode()).getNumDefs())
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O << "push";
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else
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printRegName(O, Op.getReg());
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} else if (Op.isImm())
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O << '#' << Op.getImm();
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else if (Op.isFPImm())
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O << '#' << Op.getFPImm();
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else {
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assert(Op.isExpr() && "unknown operand kind in printOperand");
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Op.getExpr()->print(O, &MAI);
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}
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}
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