1f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman//===- llvm/Support/PassNameParser.h ----------------------------*- C++ -*-===// 2f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// 3f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// The LLVM Compiler Infrastructure 4f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// 584e66db653835cee524fc51185ed614f1d6ac628Chris Lattner// This file is distributed under the University of Illinois Open Source 684e66db653835cee524fc51185ed614f1d6ac628Chris Lattner// License. See LICENSE.TXT for details. 7f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// 8f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman//===----------------------------------------------------------------------===// 9f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// 10f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// This file the PassNameParser and FilteredPassNameParser<> classes, which are 11f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// used to add command line arguments to a utility for all of the passes that 12f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// have been registered into the system. 13f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// 14f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// The PassNameParser class adds ALL passes linked into the system (that are 15f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// creatable) as command line arguments to the tool (when instantiated with the 16f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// appropriate command line option template). The FilteredPassNameParser<> 17f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// template is used for the same purposes as PassNameParser, except that it only 18f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// includes passes that have a PassType that are compatible with the filter 19f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// (which is the template argument). 20f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// 21f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman//===----------------------------------------------------------------------===// 22f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman 23f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman#ifndef LLVM_SUPPORT_PASS_NAME_PARSER_H 24f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman#define LLVM_SUPPORT_PASS_NAME_PARSER_H 25f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman 267bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramer#include "llvm/Pass.h" 277bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramer#include "llvm/ADT/STLExtras.h" 28f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman#include "llvm/Support/CommandLine.h" 29675d56222b6b98d2c22a17aaf69a036e57d5426aEdwin Török#include "llvm/Support/ErrorHandling.h" 304e4fe9d4baccaff88c839d9662b0b503f9d2edd0Douglas Gregor#include "llvm/Support/raw_ostream.h" 31d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greene#include <cstring> 32f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman 33f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohmannamespace llvm { 34f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman 35f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman//===----------------------------------------------------------------------===// 36f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// PassNameParser class - Make use of the pass registration mechanism to 37f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// automatically add a command line argument to opt for each pass. 38f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman// 39f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohmanclass PassNameParser : public PassRegistrationListener, 40f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman public cl::parser<const PassInfo*> { 41f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman cl::Option *Opt; 42f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohmanpublic: 43f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman PassNameParser() : Opt(0) {} 445f9a4f33e931303f39ffb532530e6d3bf4dfae03Chris Lattner virtual ~PassNameParser(); 457bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramer 46f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman void initialize(cl::Option &O) { 47f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman Opt = &O; 48f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman cl::parser<const PassInfo*>::initialize(O); 49f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman 50f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman // Add all of the passes to the map that got initialized before 'this' did. 51f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman enumeratePasses(); 52f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman } 53f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman 54f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman // ignorablePassImpl - Can be overriden in subclasses to refine the list of 55f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman // which passes we want to include. 56f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman // 57cb14cb861b75a0a643c16851af1c350ce7b38d4cOwen Anderson virtual bool ignorablePassImpl(const PassInfo *P) const { return false; } 58f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman 59cb14cb861b75a0a643c16851af1c350ce7b38d4cOwen Anderson inline bool ignorablePass(const PassInfo *P) const { 60f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman // Ignore non-selectable and non-constructible passes! Ignore 61f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman // non-optimizations. 62f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman return P->getPassArgument() == 0 || *P->getPassArgument() == 0 || 63f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman P->getNormalCtor() == 0 || ignorablePassImpl(P); 64f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman } 65f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman 66f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman // Implement the PassRegistrationListener callbacks used to populate our map 67f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman // 68cb14cb861b75a0a643c16851af1c350ce7b38d4cOwen Anderson virtual void passRegistered(const PassInfo *P) { 69f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman if (ignorablePass(P) || !Opt) return; 70f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman if (findOption(P->getPassArgument()) != getNumOptions()) { 71397f4560780d34da0bd1e4c9b9101c6f0774e8ffChris Lattner errs() << "Two passes with the same argument (-" 72f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman << P->getPassArgument() << ") attempted to be registered!\n"; 73bd448e3ca993226084d7f53445388fcd8e46b996Edwin Török llvm_unreachable(0); 74f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman } 75f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman addLiteralOption(P->getPassArgument(), P, P->getPassName()); 76f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman } 77cb14cb861b75a0a643c16851af1c350ce7b38d4cOwen Anderson virtual void passEnumerate(const PassInfo *P) { passRegistered(P); } 78f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman 79f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman // printOptionInfo - Print out information about this option. Override the 80f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman // default implementation to sort the table before we print... 815fb79208352fa2f29bbd5f9b9c46deb77170a04eBill Wendling virtual void printOptionInfo(const cl::Option &O, size_t GlobalWidth) const { 82f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman PassNameParser *PNP = const_cast<PassNameParser*>(this); 837bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramer array_pod_sort(PNP->Values.begin(), PNP->Values.end(), ValLessThan); 84f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman cl::parser<const PassInfo*>::printOptionInfo(O, GlobalWidth); 85f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman } 867bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramer 877bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramerprivate: 887bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramer // ValLessThan - Provide a sorting comparator for Values elements... 897bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramer static int ValLessThan(const void *VT1, const void *VT2) { 907bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramer typedef PassNameParser::OptionInfo ValType; 917bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramer return std::strcmp(static_cast<const ValType *>(VT1)->Name, 927bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramer static_cast<const ValType *>(VT2)->Name); 937bbe4f47853f4cfda1d1bd6c0af2c11fc01e1e1aBenjamin Kramer } 94f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman}; 95f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman 96f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene///===----------------------------------------------------------------------===// 97f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// FilteredPassNameParser class - Make use of the pass registration 98f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// mechanism to automatically add a command line argument to opt for 99f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// each pass that satisfies a filter criteria. Filter should return 100f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// true for passes to be registered as command-line options. 101f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// 102d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greenetemplate<typename Filter> 103d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greeneclass FilteredPassNameParser : public PassNameParser { 104d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greeneprivate: 105d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greene Filter filter; 106f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman 107d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greenepublic: 108cb14cb861b75a0a643c16851af1c350ce7b38d4cOwen Anderson bool ignorablePassImpl(const PassInfo *P) const { return !filter(*P); } 109d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greene}; 110d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greene 111f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene///===----------------------------------------------------------------------===// 112f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// PassArgFilter - A filter for use with PassNameFilterParser that only 113f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// accepts a Pass whose Arg matches certain strings. 114f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// 115f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// Use like this: 116f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// 117f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// extern const char AllowedPassArgs[] = "-anders_aa -dse"; 118f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// 119f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// static cl::list< 120f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// const PassInfo*, 121f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// bool, 122f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// FilteredPassNameParser<PassArgFilter<AllowedPassArgs> > > 123f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// PassList(cl::desc("Passes available:")); 124f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// 125f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// Only the -anders_aa and -dse options will be available to the user. 126f1a75f634add670f6f74ef8242be659c0e82dd7bDavid Greene/// 127d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greenetemplate<const char *Args> 128d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greeneclass PassArgFilter { 129d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greenepublic: 130d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greene bool operator()(const PassInfo &P) const { 131d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greene return(std::strstr(Args, P.getPassArgument())); 132d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greene } 133d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greene}; 134d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greene 135d2ce5b45df1e2dd9ddb2a6aeef0b72f5c7603113David Greene} // End llvm namespace 136c24a3f87f866e96b2a9ad691c78113651eaa77d1Dan Gohman 137f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cDan Gohman#endif 138