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https://github.com/c64scene-ar/llvm-6502.git
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cb465fc71e
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234 91177308-0d34-0410-b5e6-96231b3b80d8
126 lines
3.1 KiB
C++
126 lines
3.1 KiB
C++
// $Id$
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//**************************************************************************/
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// File:
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// LLCOptions.cpp
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//
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// Purpose:
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// Options for the llc compiler.
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//
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// History:
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// 7/15/01 - Vikram Adve - Created
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//
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//**************************************************************************/
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//************************** System Include Files **************************/
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#include <iostream.h>
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#include <unistd.h>
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//*************************** User Include Files ***************************/
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#include "llvm/Support/ProgramOptions.h"
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#include "llvm/Support/ProgramOption.h"
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#include "llvm/LLC/LLCOptions.h"
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//---------------------------------------------------------------------------
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// class LLCOptions
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//---------------------------------------------------------------------------
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/*ctor*/
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LLCOptions::LLCOptions (int _argc,
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const char* _argv[],
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const char* _envp[])
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: ProgramOptions(_argc, _argv, _envp)
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{
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InitializeOptions();
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ParseArgs(argc, argv, envp);
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CheckParse();
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}
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/*dtor*/
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LLCOptions::~LLCOptions()
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{}
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//--------------------------------------------------------------------
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// Initialize all our compiler options
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//--------------------------------------------------------------------
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void
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LLCOptions::InitializeOptions()
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{
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Register(new FlagOption(HELP_OPT,
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"print usage message",
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false /*initValue*/));
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Register(new FlagOption(DEBUG_OPT,
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"turn on default debugging options",
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false /*initValue*/));
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Register(new FlagOption(DEBUG_OPT,
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"turn off all diagnostic messages",
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false /*initValue*/));
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Register(new StringOption(OUTFILENAME_OPT,
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"output file name",
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"" /*initValue*/));
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Register(new IntegerValuedOption(DEBUG_INSTR_SELECT_OPT,
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"control amount of debugging information for instruction selection",
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0 /*initValue*/));
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}
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void
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LLCOptions::ParseExtraArgs()
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{
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if (argsConsumed != argc-1)
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Usage();
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// input file name should be the last argument
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inputFileName = argv[argc-1];
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// output file name may be specified with -o option;
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// otherwise create it from the input file name by replace ".ll" with ".o"
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const char* outfilenameOpt = this->StringOptionValue(OUTFILENAME_OPT);
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if (outfilenameOpt)
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{// "-o" option was used
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outputFileName = outfilenameOpt;
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}
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else
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{
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outputFileName = inputFileName;
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unsigned int suffixPos = outputFileName.rfind(".bc");
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if (suffixPos >= outputFileName.length())
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suffixPos = outputFileName.rfind(".ll");
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if (suffixPos >= outputFileName.length())
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{
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cerr << "Unrecognized suffix in file name " << inputFileName << endl;
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Usage();
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}
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outputFileName.replace(suffixPos, 3, ".o");
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}
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}
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//--------------------------------------------------------------------
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// Functions that must be overridden in subclass of ProgramOptions
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//--------------------------------------------------------------------
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void
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LLCOptions::CheckParse()
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{}
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void
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LLCOptions::PrintUsage(ostream& stream) const
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{
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stream << "\nUSAGE:\n\t" << ProgramName() << " [options] "
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<< "llvm-file" << endl << endl;
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PrintOptions(stream);
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}
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