mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
d84feb8aa1
llvm-svn: 76212
52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
//===- AsmMatcherEmitter.cpp - Generate an assembly matcher ---------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This tablegen backend emits a target specifier matcher for converting parsed
|
|
// assembly operands in the MCInst structures.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "AsmMatcherEmitter.h"
|
|
#include "CodeGenTarget.h"
|
|
#include "Record.h"
|
|
using namespace llvm;
|
|
|
|
void AsmMatcherEmitter::run(raw_ostream &OS) {
|
|
CodeGenTarget Target;
|
|
const std::vector<CodeGenRegister> &Registers = Target.getRegisters();
|
|
|
|
std::string Namespace = Registers[0].TheDef->getValueAsString("Namespace");
|
|
|
|
EmitSourceFileHeader("Assembly Matcher Source Fragment", OS);
|
|
OS << "namespace llvm {\n\n";
|
|
|
|
// Emit the function to match a register name to number.
|
|
|
|
if (!Namespace.empty())
|
|
OS << "namespace " << Namespace << " {\n";
|
|
OS << "bool MatchRegisterName(const std::string &Name, unsigned &RegNo) {\n";
|
|
|
|
// FIXME: TableGen should have a fast string matcher generator.
|
|
for (unsigned i = 0, e = Registers.size(); i != e; ++i) {
|
|
const CodeGenRegister &Reg = Registers[i];
|
|
if (Reg.TheDef->getValueAsString("AsmName").empty())
|
|
continue;
|
|
|
|
OS << " if (Name == \""
|
|
<< Reg.TheDef->getValueAsString("AsmName") << "\")\n"
|
|
<< " return RegNo=" << i + 1 << ", false;\n";
|
|
}
|
|
OS << " return true;\n";
|
|
OS << "}\n";
|
|
|
|
if (!Namespace.empty())
|
|
OS << "}\n";
|
|
OS << "} // End llvm namespace \n";
|
|
}
|