| //===- llvm/Support/PassNameParser.h ----------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file was developed by the LLVM research group and is distributed under |
| // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file the PassNameParser and FilteredPassNameParser<> classes, which are |
| // used to add command line arguments to a utility for all of the passes that |
| // have been registered into the system. |
| // |
| // The PassNameParser class adds ALL passes linked into the system (that are |
| // creatable) as command line arguments to the tool (when instantiated with the |
| // appropriate command line option template). The FilteredPassNameParser<> |
| // template is used for the same purposes as PassNameParser, except that it only |
| // includes passes that have a PassType that are compatible with the filter |
| // (which is the template argument). |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_SUPPORT_PASS_NAME_PARSER_H |
| #define LLVM_SUPPORT_PASS_NAME_PARSER_H |
| |
| #include "llvm/Support/CommandLine.h" |
| #include "llvm/Support/Debug.h" |
| #include "llvm/Pass.h" |
| #include <algorithm> |
| |
| namespace llvm { |
| |
| //===----------------------------------------------------------------------===// |
| // PassNameParser class - Make use of the pass registration mechanism to |
| // automatically add a command line argument to opt for each pass. |
| // |
| class PassNameParser : public PassRegistrationListener, |
| public cl::parser<const PassInfo*> { |
| cl::Option *Opt; |
| public: |
| PassNameParser() : Opt(0) {} |
| |
| void initialize(cl::Option &O) { |
| Opt = &O; |
| cl::parser<const PassInfo*>::initialize(O); |
| |
| // Add all of the passes to the map that got initialized before 'this' did. |
| enumeratePasses(); |
| } |
| |
| // ignorablePassImpl - Can be overriden in subclasses to refine the list of |
| // which passes we want to include. |
| // |
| virtual bool ignorablePassImpl(const PassInfo *P) const { return false; } |
| |
| inline bool ignorablePass(const PassInfo *P) const { |
| // Ignore non-selectable and non-constructible passes! Ignore |
| // non-optimizations. |
| return P->getPassArgument() == 0 || *P->getPassArgument() == 0 || |
| P->getNormalCtor() == 0 || ignorablePassImpl(P); |
| } |
| |
| // Implement the PassRegistrationListener callbacks used to populate our map |
| // |
| virtual void passRegistered(const PassInfo *P) { |
| if (ignorablePass(P) || !Opt) return; |
| if (findOption(P->getPassArgument()) != getNumOptions()) { |
| cerr << "Two passes with the same argument (-" |
| << P->getPassArgument() << ") attempted to be registered!\n"; |
| abort(); |
| } |
| addLiteralOption(P->getPassArgument(), P, P->getPassName()); |
| } |
| virtual void passEnumerate(const PassInfo *P) { passRegistered(P); } |
| |
| // ValLessThan - Provide a sorting comparator for Values elements... |
| typedef std::pair<const char*, |
| std::pair<const PassInfo*, const char*> > ValType; |
| static bool ValLessThan(const ValType &VT1, const ValType &VT2) { |
| return std::string(VT1.first) < std::string(VT2.first); |
| } |
| |
| // printOptionInfo - Print out information about this option. Override the |
| // default implementation to sort the table before we print... |
| virtual void printOptionInfo(const cl::Option &O, unsigned GlobalWidth) const{ |
| PassNameParser *PNP = const_cast<PassNameParser*>(this); |
| std::sort(PNP->Values.begin(), PNP->Values.end(), ValLessThan); |
| cl::parser<const PassInfo*>::printOptionInfo(O, GlobalWidth); |
| } |
| }; |
| |
| } // End llvm namespace |
| |
| #endif |