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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116805 91177308-0d34-0410-b5e6-96231b3b80d8
74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
//===-- PTXAsmPrinter.cpp - PTX LLVM assembly writer ----------------------===//
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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 contains a printer that converts from our internal representation
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// of machine-dependent LLVM code to PTX assembly language.
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//
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//===----------------------------------------------------------------------===//
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#include "PTX.h"
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#include "PTXTargetMachine.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/CodeGen/MachineInstr.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/Target/TargetRegistry.h"
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using namespace llvm;
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namespace {
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class PTXAsmPrinter : public AsmPrinter {
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public:
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explicit PTXAsmPrinter(TargetMachine &TM, MCStreamer &Streamer) :
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AsmPrinter(TM, Streamer) {}
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const char *getPassName() const { return "PTX Assembly Printer"; }
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virtual void EmitInstruction(const MachineInstr *MI);
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void printOperand(const MachineInstr *MI, int opNum, raw_ostream &OS);
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// autogen'd.
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void printInstruction(const MachineInstr *MI, raw_ostream &OS);
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static const char *getRegisterName(unsigned RegNo);
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};
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} // namespace
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void PTXAsmPrinter::EmitInstruction(const MachineInstr *MI) {
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SmallString<128> str;
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raw_svector_ostream OS(str);
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printInstruction(MI, OS);
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OS << ';';
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OutStreamer.EmitRawText(OS.str());
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}
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void PTXAsmPrinter::printOperand(const MachineInstr *MI, int opNum,
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raw_ostream &OS) {
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const MachineOperand &MO = MI->getOperand(opNum);
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switch (MO.getType()) {
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default:
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llvm_unreachable("<unknown operand type>");
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break;
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case MachineOperand::MO_Register:
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OS << getRegisterName(MO.getReg());
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break;
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case MachineOperand::MO_Immediate:
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OS << (int) MO.getImm();
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break;
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}
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}
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#include "PTXGenAsmWriter.inc"
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// Force static initialization.
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extern "C" void LLVMInitializePTXAsmPrinter() {
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RegisterAsmPrinter<PTXAsmPrinter> X(ThePTXTarget);
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}
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