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//===- InstrEnumEmitter.cpp - Generate Instruction Set Enums --------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This tablegen backend is responsible for emitting enums for each machine
// instruction.
//
//===----------------------------------------------------------------------===//
#include "InstrEnumEmitter.h"
#include "CodeGenTarget.h"
#include "Record.h"
#include <cstdio>
using namespace llvm;
// runEnums - Print out enum values for all of the instructions.
void InstrEnumEmitter::run(raw_ostream &OS) {
EmitSourceFileHeader("Target Instruction Enum Values", OS);
OS << "namespace llvm {\n\n";
CodeGenTarget Target;
// We must emit the PHI opcode first...
std::string Namespace;
for (CodeGenTarget::inst_iterator II = Target.inst_begin(),
E = Target.inst_end(); II != E; ++II) {
if (II->second.Namespace != "TargetOpcode") {
Namespace = II->second.Namespace;
break;
}
}
if (Namespace.empty()) {
fprintf(stderr, "No instructions defined!\n");
exit(1);
}
std::vector<const CodeGenInstruction*> NumberedInstructions;
Target.getInstructionsByEnumValue(NumberedInstructions);
OS << "namespace " << Namespace << " {\n";
OS << " enum {\n";
for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i) {
OS << " " << NumberedInstructions[i]->TheDef->getName()
<< "\t= " << i << ",\n";
}
OS << " INSTRUCTION_LIST_END = " << NumberedInstructions.size() << "\n";
OS << " };\n}\n";
OS << "} // End llvm namespace \n";
}
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