/usr/include/llvm-3.8/llvm/IR/LegacyPassNameParser.h is in llvm-3.8-dev 1:3.8-2ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | //===- LegacyPassNameParser.h -----------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains 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).
//
// Note that this is part of the legacy pass manager infrastructure and will be
// (eventually) going away.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_IR_LEGACYPASSNAMEPARSER_H
#define LLVM_IR_LEGACYPASSNAMEPARSER_H
#include "llvm/ADT/STLExtras.h"
#include "llvm/Pass.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include <cstring>
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*> {
public:
PassNameParser(cl::Option &O);
~PassNameParser() override;
void initialize() {
cl::parser<const PassInfo*>::initialize();
// 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() == nullptr || *P->getPassArgument() == 0 ||
P->getNormalCtor() == nullptr || ignorablePassImpl(P);
}
// Implement the PassRegistrationListener callbacks used to populate our map
//
void passRegistered(const PassInfo *P) override {
if (ignorablePass(P)) return;
if (findOption(P->getPassArgument()) != getNumOptions()) {
errs() << "Two passes with the same argument (-"
<< P->getPassArgument() << ") attempted to be registered!\n";
llvm_unreachable(nullptr);
}
addLiteralOption(P->getPassArgument(), P, P->getPassName());
}
void passEnumerate(const PassInfo *P) override { passRegistered(P); }
// printOptionInfo - Print out information about this option. Override the
// default implementation to sort the table before we print...
void printOptionInfo(const cl::Option &O, size_t GlobalWidth) const override {
PassNameParser *PNP = const_cast<PassNameParser*>(this);
array_pod_sort(PNP->Values.begin(), PNP->Values.end(), ValLessThan);
cl::parser<const PassInfo*>::printOptionInfo(O, GlobalWidth);
}
private:
// ValLessThan - Provide a sorting comparator for Values elements...
static int ValLessThan(const PassNameParser::OptionInfo *VT1,
const PassNameParser::OptionInfo *VT2) {
return std::strcmp(VT1->Name, VT2->Name);
}
};
///===----------------------------------------------------------------------===//
/// FilteredPassNameParser class - Make use of the pass registration
/// mechanism to automatically add a command line argument to opt for
/// each pass that satisfies a filter criteria. Filter should return
/// true for passes to be registered as command-line options.
///
template<typename Filter>
class FilteredPassNameParser : public PassNameParser {
private:
Filter filter;
public:
bool ignorablePassImpl(const PassInfo *P) const override {
return !filter(*P);
}
};
///===----------------------------------------------------------------------===//
/// PassArgFilter - A filter for use with PassNameFilterParser that only
/// accepts a Pass whose Arg matches certain strings.
///
/// Use like this:
///
/// extern const char AllowedPassArgs[] = "-anders_aa -dse";
///
/// static cl::list<
/// const PassInfo*,
/// bool,
/// FilteredPassNameParser<PassArgFilter<AllowedPassArgs> > >
/// PassList(cl::desc("Passes available:"));
///
/// Only the -anders_aa and -dse options will be available to the user.
///
template<const char *Args>
class PassArgFilter {
public:
bool operator()(const PassInfo &P) const {
return(std::strstr(Args, P.getPassArgument()));
}
};
} // End llvm namespace
#endif
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