MachineModuleInfo.cpp revision a34ec2290fa441d312ac33a61e6ec6029259bdef
16da186480b55c10b96a255ce0a4ab731155da907Jim Laskey//===-- llvm/CodeGen/MachineModuleInfo.cpp ----------------------*- C++ -*-===// 26af5681824713544a7a8c6e115649b29d59b3d13Jim Laskey// 36af5681824713544a7a8c6e115649b29d59b3d13Jim Laskey// The LLVM Compiler Infrastructure 46af5681824713544a7a8c6e115649b29d59b3d13Jim Laskey// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 76af5681824713544a7a8c6e115649b29d59b3d13Jim Laskey// 86af5681824713544a7a8c6e115649b29d59b3d13Jim Laskey//===----------------------------------------------------------------------===// 96af5681824713544a7a8c6e115649b29d59b3d13Jim Laskey 106da186480b55c10b96a255ce0a4ab731155da907Jim Laskey#include "llvm/CodeGen/MachineModuleInfo.h" 116af5681824713544a7a8c6e115649b29d59b3d13Jim Laskey 12b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey#include "llvm/Constants.h" 130ff39b3feb10477c224138156941234f5fa46f58Evan Cheng#include "llvm/Analysis/ValueTracking.h" 149d4209fb82cab74bae76511e3f21ef1c24ec948aJim Laskey#include "llvm/CodeGen/MachineFunctionPass.h" 159d4209fb82cab74bae76511e3f21ef1c24ec948aJim Laskey#include "llvm/CodeGen/MachineFunction.h" 168b56a90bec639665fc024896d2fc2bdd095c76a3Evan Cheng#include "llvm/CodeGen/Passes.h" 179d4209fb82cab74bae76511e3f21ef1c24ec948aJim Laskey#include "llvm/Target/TargetInstrInfo.h" 189d4209fb82cab74bae76511e3f21ef1c24ec948aJim Laskey#include "llvm/Target/TargetMachine.h" 19c1c47c3fa4d6d21b65924c02ab2f228e6285152dJim Laskey#include "llvm/Target/TargetOptions.h" 20b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey#include "llvm/DerivedTypes.h" 2186cbdba5228a3cb043a73c630e8d93e1a943cbe3Jim Laskey#include "llvm/GlobalVariable.h" 22b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey#include "llvm/Intrinsics.h" 23b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey#include "llvm/Instructions.h" 24b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey#include "llvm/Module.h" 25b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey#include "llvm/Support/Dwarf.h" 26c25e7581b9b8088910da31702d4ca21c4734c6d7Torok Edwin#include "llvm/Support/ErrorHandling.h" 276af5681824713544a7a8c6e115649b29d59b3d13Jim Laskeyusing namespace llvm; 289c4447aa2b47f133ac3eac095adb3c375d33031eJim Laskeyusing namespace llvm::dwarf; 296af5681824713544a7a8c6e115649b29d59b3d13Jim Laskey 306af5681824713544a7a8c6e115649b29d59b3d13Jim Laskey// Handle the Pass registration stuff necessary to use TargetData's. 31844731a7f1909f55935e3514c9e713a62d67662eDan Gohmanstatic RegisterPass<MachineModuleInfo> 32844731a7f1909f55935e3514c9e713a62d67662eDan GohmanX("machinemoduleinfo", "Module Information"); 331997473cf72957d0e70322e2fe6fe2ab141c58a6Devang Patelchar MachineModuleInfo::ID = 0; 34063e765345fd49df0f53b807e57ada7c2ded7e16Jim Laskey 35a70e2e3d4831b8a39ea6bae5c62df29fa82a86f3Chris Lattner// Out of line virtual method. 36a70e2e3d4831b8a39ea6bae5c62df29fa82a86f3Chris LattnerMachineModuleInfoImpl::~MachineModuleInfoImpl() {} 37a70e2e3d4831b8a39ea6bae5c62df29fa82a86f3Chris Lattner 38b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey//===----------------------------------------------------------------------===// 39cf29697266a78f74b4c00675ae54e3826a03fec1Eric Christopher 406da186480b55c10b96a255ce0a4ab731155da907Jim LaskeyMachineModuleInfo::MachineModuleInfo() 41ae73dc1448d25b02cabc7c64c86c64371453dda8Dan Gohman: ImmutablePass(&ID) 42f18545550e1cfbe3f47afb6a9a58405416258e3bChris Lattner, ObjFileMMI(0) 435d48c6d2cb7fb73c8bb042fbc4e8662347df70bcBob Wilson, CurCallSite(0) 442365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov, CallsEHReturn(0) 452365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov, CallsUnwindInit(0) 46a70e2e3d4831b8a39ea6bae5c62df29fa82a86f3Chris Lattner, DbgInfoAvailable(false) { 47d44fff7849034fc17d6a0e9f9926542865bb7881Eric Christopher // Always emit some info, by default "no personality" info. 488c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov Personalities.push_back(NULL); 498c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov} 50b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey 51a70e2e3d4831b8a39ea6bae5c62df29fa82a86f3Chris LattnerMachineModuleInfo::~MachineModuleInfo() { 52f18545550e1cfbe3f47afb6a9a58405416258e3bChris Lattner delete ObjFileMMI; 53b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey} 54b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey 556da186480b55c10b96a255ce0a4ab731155da907Jim Laskey/// doInitialization - Initialize the state for a new module. 56b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey/// 576da186480b55c10b96a255ce0a4ab731155da907Jim Laskeybool MachineModuleInfo::doInitialization() { 58b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey return false; 59b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey} 606af5681824713544a7a8c6e115649b29d59b3d13Jim Laskey 616da186480b55c10b96a255ce0a4ab731155da907Jim Laskey/// doFinalization - Tear down the state after completion of a module. 62b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey/// 636da186480b55c10b96a255ce0a4ab731155da907Jim Laskeybool MachineModuleInfo::doFinalization() { 64b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey return false; 65b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey} 66b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey 676da186480b55c10b96a255ce0a4ab731155da907Jim Laskey/// EndFunction - Discard function meta information. 684188699f80c233a20b6ddc61570a8a8c1804cb85Jim Laskey/// 696da186480b55c10b96a255ce0a4ab731155da907Jim Laskeyvoid MachineModuleInfo::EndFunction() { 704188699f80c233a20b6ddc61570a8a8c1804cb85Jim Laskey // Clean up frame info. 714188699f80c233a20b6ddc61570a8a8c1804cb85Jim Laskey FrameMoves.clear(); 72cf29697266a78f74b4c00675ae54e3826a03fec1Eric Christopher 7359667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey // Clean up exception info. 7459667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey LandingPads.clear(); 75ca752c9020a1b1cf151142bd9e0cbca9af12d807Jim Grosbach CallSiteMap.clear(); 7659667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey TypeInfos.clear(); 7773ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands FilterIds.clear(); 7814da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands FilterEnds.clear(); 792365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov CallsEHReturn = 0; 802365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov CallsUnwindInit = 0; 8185d29e2de30cf49956558e45246b998f6d9ed985Devang Patel VariableDbgInfo.clear(); 824188699f80c233a20b6ddc61570a8a8c1804cb85Jim Laskey} 834188699f80c233a20b6ddc61570a8a8c1804cb85Jim Laskey 84b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey/// AnalyzeModule - Scan the module for global debug information. 85b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey/// 866da186480b55c10b96a255ce0a4ab731155da907Jim Laskeyvoid MachineModuleInfo::AnalyzeModule(Module &M) { 87401e10c4fbfcdcfade5065093e2ca97f69a1d144Chris Lattner // Insert functions in the llvm.used array (but not llvm.compiler.used) into 88401e10c4fbfcdcfade5065093e2ca97f69a1d144Chris Lattner // UsedFunctions. 8948ae02fe62cafd44c740e67cfae6e7277e61a973Dale Johannesen GlobalVariable *GV = M.getGlobalVariable("llvm.used"); 9048ae02fe62cafd44c740e67cfae6e7277e61a973Dale Johannesen if (!GV || !GV->hasInitializer()) return; 9148ae02fe62cafd44c740e67cfae6e7277e61a973Dale Johannesen 9248ae02fe62cafd44c740e67cfae6e7277e61a973Dale Johannesen // Should be an array of 'i8*'. 9348ae02fe62cafd44c740e67cfae6e7277e61a973Dale Johannesen ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer()); 9448ae02fe62cafd44c740e67cfae6e7277e61a973Dale Johannesen if (InitList == 0) return; 9548ae02fe62cafd44c740e67cfae6e7277e61a973Dale Johannesen 961d5c49327b81fe99295dc55d3be80a229f214da3Chris Lattner for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) 971d5c49327b81fe99295dc55d3be80a229f214da3Chris Lattner if (Function *F = 981d5c49327b81fe99295dc55d3be80a229f214da3Chris Lattner dyn_cast<Function>(InitList->getOperand(i)->stripPointerCasts())) 991d5c49327b81fe99295dc55d3be80a229f214da3Chris Lattner UsedFunctions.insert(F); 100b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey} 101b3e789ac2548a4382d0db03b573fd8a127617f8fJim Laskey 10259667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey//===-EH-------------------------------------------------------------------===// 10359667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey 10459667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// getOrCreateLandingPadInfo - Find or create an LandingPadInfo for the 10559667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// specified MachineBasicBlock. 10610fff6078a7bc42f142c536bd55e9569253b280bBill WendlingLandingPadInfo &MachineModuleInfo::getOrCreateLandingPadInfo 10710fff6078a7bc42f142c536bd55e9569253b280bBill Wendling (MachineBasicBlock *LandingPad) { 10859667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey unsigned N = LandingPads.size(); 10959667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey for (unsigned i = 0; i < N; ++i) { 11059e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey LandingPadInfo &LP = LandingPads[i]; 11159e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey if (LP.LandingPadBlock == LandingPad) 11259e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey return LP; 11359667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey } 114cf29697266a78f74b4c00675ae54e3826a03fec1Eric Christopher 11559667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey LandingPads.push_back(LandingPadInfo(LandingPad)); 11659667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey return LandingPads[N]; 11759667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey} 11859667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey 11959667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// addInvoke - Provide the begin and end labels of an invoke style call and 12059667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// associate it with a try landing pad block. 12159667fe20379d65129ef5f3665e9f87e654c8623Jim Laskeyvoid MachineModuleInfo::addInvoke(MachineBasicBlock *LandingPad, 12259667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey unsigned BeginLabel, unsigned EndLabel) { 12359e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); 124eeb37e0b80f6f71b7620099083e7c10a9978ef86Anton Korobeynikov LP.BeginLabels.push_back(BeginLabel); 125eeb37e0b80f6f71b7620099083e7c10a9978ef86Anton Korobeynikov LP.EndLabels.push_back(EndLabel); 12659667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey} 12759667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey 12859667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// addLandingPad - Provide the label of a try LandingPad block. 12959667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// 13059667fe20379d65129ef5f3665e9f87e654c8623Jim Laskeyunsigned MachineModuleInfo::addLandingPad(MachineBasicBlock *LandingPad) { 13159667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey unsigned LandingPadLabel = NextLabelID(); 13259e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); 133cf29697266a78f74b4c00675ae54e3826a03fec1Eric Christopher LP.LandingPadLabel = LandingPadLabel; 13459667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey return LandingPadLabel; 13559667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey} 13659667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey 13759667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// addPersonality - Provide the personality function for the exception 13859667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// information. 13959667fe20379d65129ef5f3665e9f87e654c8623Jim Laskeyvoid MachineModuleInfo::addPersonality(MachineBasicBlock *LandingPad, 1408c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov Function *Personality) { 14159e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); 1428c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov LP.Personality = Personality; 1430ff3ca4f9240048462d4cf8e708b519177acf1b4Anton Korobeynikov 14410fff6078a7bc42f142c536bd55e9569253b280bBill Wendling for (unsigned i = 0; i < Personalities.size(); ++i) 1458c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov if (Personalities[i] == Personality) 1468c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov return; 147cf29697266a78f74b4c00675ae54e3826a03fec1Eric Christopher 148d44fff7849034fc17d6a0e9f9926542865bb7881Eric Christopher // If this is the first personality we're adding go 149d44fff7849034fc17d6a0e9f9926542865bb7881Eric Christopher // ahead and add it at the beginning. 150d44fff7849034fc17d6a0e9f9926542865bb7881Eric Christopher if (Personalities[0] == NULL) 151d44fff7849034fc17d6a0e9f9926542865bb7881Eric Christopher Personalities[0] = Personality; 152d44fff7849034fc17d6a0e9f9926542865bb7881Eric Christopher else 153d44fff7849034fc17d6a0e9f9926542865bb7881Eric Christopher Personalities.push_back(Personality); 15459667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey} 15559667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey 15659667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// addCatchTypeInfo - Provide the catch typeinfo for a landing pad. 15759667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// 15859667fe20379d65129ef5f3665e9f87e654c8623Jim Laskeyvoid MachineModuleInfo::addCatchTypeInfo(MachineBasicBlock *LandingPad, 15959667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey std::vector<GlobalVariable *> &TyInfo) { 16059e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); 16159667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey for (unsigned N = TyInfo.size(); N; --N) 16259e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey LP.TypeIds.push_back(getTypeIDFor(TyInfo[N - 1])); 16359667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey} 16473ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands 16573ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands/// addFilterTypeInfo - Provide the filter typeinfo for a landing pad. 16659e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey/// 16773ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sandsvoid MachineModuleInfo::addFilterTypeInfo(MachineBasicBlock *LandingPad, 16873ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands std::vector<GlobalVariable *> &TyInfo) { 16959e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); 1704925567f85ea60019a9cd45b8230fa72a1bd78dfBill Wendling std::vector<unsigned> IdsInFilter(TyInfo.size()); 17110fff6078a7bc42f142c536bd55e9569253b280bBill Wendling for (unsigned I = 0, E = TyInfo.size(); I != E; ++I) 17273ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands IdsInFilter[I] = getTypeIDFor(TyInfo[I]); 17373ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands LP.TypeIds.push_back(getFilterIDFor(IdsInFilter)); 17459e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey} 17559e8434a855737ce3324e4b1acf5e9f12b57a2fcJim Laskey 1766590b0457c5e28a7336ae31de194953d8127217aDuncan Sands/// addCleanup - Add a cleanup action for a landing pad. 1776590b0457c5e28a7336ae31de194953d8127217aDuncan Sands/// 1786590b0457c5e28a7336ae31de194953d8127217aDuncan Sandsvoid MachineModuleInfo::addCleanup(MachineBasicBlock *LandingPad) { 1796590b0457c5e28a7336ae31de194953d8127217aDuncan Sands LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); 1806590b0457c5e28a7336ae31de194953d8127217aDuncan Sands LP.TypeIds.push_back(0); 1816590b0457c5e28a7336ae31de194953d8127217aDuncan Sands} 1826590b0457c5e28a7336ae31de194953d8127217aDuncan Sands 18359667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// TidyLandingPads - Remap landing pad labels and remove any deleted landing 18459667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// pads. 18559667fe20379d65129ef5f3665e9f87e654c8623Jim Laskeyvoid MachineModuleInfo::TidyLandingPads() { 18659667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey for (unsigned i = 0; i != LandingPads.size(); ) { 18759667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey LandingPadInfo &LandingPad = LandingPads[i]; 188a34ec2290fa441d312ac33a61e6ec6029259bdefChris Lattner if (isLabelDeleted(LandingPad.LandingPadLabel)) 189a34ec2290fa441d312ac33a61e6ec6029259bdefChris Lattner LandingPad.LandingPadLabel = 0; 190eeb37e0b80f6f71b7620099083e7c10a9978ef86Anton Korobeynikov 191070280e97f801ae809ddcc7930c153929f253997Anton Korobeynikov // Special case: we *should* emit LPs with null LP MBB. This indicates 192481dc721c37a3da0b3cc88191d01fe5b523625eeDuncan Sands // "nounwind" case. 193070280e97f801ae809ddcc7930c153929f253997Anton Korobeynikov if (!LandingPad.LandingPadLabel && LandingPad.LandingPadBlock) { 19459667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey LandingPads.erase(LandingPads.begin() + i); 19559667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey continue; 19659667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey } 19757810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands 19810fff6078a7bc42f142c536bd55e9569253b280bBill Wendling for (unsigned j=0; j != LandingPads[i].BeginLabels.size(); ) { 199a34ec2290fa441d312ac33a61e6ec6029259bdefChris Lattner unsigned BeginLabel = LandingPad.BeginLabels[j]; 200a34ec2290fa441d312ac33a61e6ec6029259bdefChris Lattner unsigned EndLabel = LandingPad.EndLabels[j]; 201a34ec2290fa441d312ac33a61e6ec6029259bdefChris Lattner if (isLabelDeleted(BeginLabel) || isLabelDeleted(EndLabel)) { 202eeb37e0b80f6f71b7620099083e7c10a9978ef86Anton Korobeynikov LandingPad.BeginLabels.erase(LandingPad.BeginLabels.begin() + j); 203eeb37e0b80f6f71b7620099083e7c10a9978ef86Anton Korobeynikov LandingPad.EndLabels.erase(LandingPad.EndLabels.begin() + j); 204eeb37e0b80f6f71b7620099083e7c10a9978ef86Anton Korobeynikov continue; 205eeb37e0b80f6f71b7620099083e7c10a9978ef86Anton Korobeynikov } 206eeb37e0b80f6f71b7620099083e7c10a9978ef86Anton Korobeynikov 207eeb37e0b80f6f71b7620099083e7c10a9978ef86Anton Korobeynikov ++j; 208eeb37e0b80f6f71b7620099083e7c10a9978ef86Anton Korobeynikov } 20957810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands 21057810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands // Remove landing pads with no try-ranges. 211303595942502f17c087fa28874c2b89117148c45Dan Gohman if (LandingPads[i].BeginLabels.empty()) { 21257810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands LandingPads.erase(LandingPads.begin() + i); 21357810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands continue; 21457810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands } 21557810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands 21657810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands // If there is no landing pad, ensure that the list of typeids is empty. 21757810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands // If the only typeid is a cleanup, this is the same as having no typeids. 21857810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands if (!LandingPad.LandingPadBlock || 21957810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands (LandingPad.TypeIds.size() == 1 && !LandingPad.TypeIds[0])) 22057810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands LandingPad.TypeIds.clear(); 22157810cdac4c842b4b395d2a0b2fae406aacb3ee4Duncan Sands 22259667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey ++i; 22359667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey } 22459667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey} 22559667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey 226cf29697266a78f74b4c00675ae54e3826a03fec1Eric Christopher/// getTypeIDFor - Return the type id for the specified typeinfo. This is 22759667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey/// function wide. 22859667fe20379d65129ef5f3665e9f87e654c8623Jim Laskeyunsigned MachineModuleInfo::getTypeIDFor(GlobalVariable *TI) { 22910fff6078a7bc42f142c536bd55e9569253b280bBill Wendling for (unsigned i = 0, N = TypeInfos.size(); i != N; ++i) 23010fff6078a7bc42f142c536bd55e9569253b280bBill Wendling if (TypeInfos[i] == TI) return i + 1; 23159667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey 23259667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey TypeInfos.push_back(TI); 23359667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey return TypeInfos.size(); 23459667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey} 23559667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey 23673ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands/// getFilterIDFor - Return the filter id for the specified typeinfos. This is 23773ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands/// function wide. 238914c970899ce3281a8d14d924ec1bfe335624ac6Bill Wendlingint MachineModuleInfo::getFilterIDFor(std::vector<unsigned> &TyIds) { 23914da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands // If the new filter coincides with the tail of an existing filter, then 24014da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands // re-use the existing filter. Folding filters more than this requires 24114da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands // re-ordering filters and/or their elements - probably not worth it. 24214da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands for (std::vector<unsigned>::iterator I = FilterEnds.begin(), 24314da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands E = FilterEnds.end(); I != E; ++I) { 244914c970899ce3281a8d14d924ec1bfe335624ac6Bill Wendling unsigned i = *I, j = TyIds.size(); 24514da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands 24614da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands while (i && j) 24714da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands if (FilterIds[--i] != TyIds[--j]) 24814da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands goto try_next; 24914da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands 25014da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands if (!j) 25114da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands // The new filter coincides with range [i, end) of the existing filter. 25214da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands return -(1 + i); 253914c970899ce3281a8d14d924ec1bfe335624ac6Bill Wendling 25414da32a486f31ba695de9080830e6fadf4942d5bDuncan Sandstry_next:; 25514da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands } 25614da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands 25714da32a486f31ba695de9080830e6fadf4942d5bDuncan Sands // Add the new filter. 258914c970899ce3281a8d14d924ec1bfe335624ac6Bill Wendling int FilterID = -(1 + FilterIds.size()); 259914c970899ce3281a8d14d924ec1bfe335624ac6Bill Wendling FilterIds.reserve(FilterIds.size() + TyIds.size() + 1); 260914c970899ce3281a8d14d924ec1bfe335624ac6Bill Wendling for (unsigned I = 0, N = TyIds.size(); I != N; ++I) 26173ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands FilterIds.push_back(TyIds[I]); 262914c970899ce3281a8d14d924ec1bfe335624ac6Bill Wendling FilterEnds.push_back(FilterIds.size()); 26373ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands FilterIds.push_back(0); // terminator 26473ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands return FilterID; 26573ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands} 26673ef58ab92d5cd23b119b7f206e5f8a8c529098dDuncan Sands 2678c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov/// getPersonality - Return the personality function for the current function. 26859667fe20379d65129ef5f3665e9f87e654c8623Jim LaskeyFunction *MachineModuleInfo::getPersonality() const { 2690ff3ca4f9240048462d4cf8e708b519177acf1b4Anton Korobeynikov // FIXME: Until PR1414 will be fixed, we're using 1 personality function per 2708c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov // function 2718c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov return !LandingPads.empty() ? LandingPads[0].Personality : NULL; 27259667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey} 27359667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey 2748c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov/// getPersonalityIndex - Return unique index for current personality 2755e365e23f165d03fd2edc972bd4395e52a481c25Eric Christopher/// function. NULL/first personality function should always get zero index. 2768c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikovunsigned MachineModuleInfo::getPersonalityIndex() const { 277070280e97f801ae809ddcc7930c153929f253997Anton Korobeynikov const Function* Personality = NULL; 278cf29697266a78f74b4c00675ae54e3826a03fec1Eric Christopher 279070280e97f801ae809ddcc7930c153929f253997Anton Korobeynikov // Scan landing pads. If there is at least one non-NULL personality - use it. 28010fff6078a7bc42f142c536bd55e9569253b280bBill Wendling for (unsigned i = 0; i != LandingPads.size(); ++i) 281070280e97f801ae809ddcc7930c153929f253997Anton Korobeynikov if (LandingPads[i].Personality) { 282070280e97f801ae809ddcc7930c153929f253997Anton Korobeynikov Personality = LandingPads[i].Personality; 283070280e97f801ae809ddcc7930c153929f253997Anton Korobeynikov break; 284070280e97f801ae809ddcc7930c153929f253997Anton Korobeynikov } 285cf29697266a78f74b4c00675ae54e3826a03fec1Eric Christopher 28610fff6078a7bc42f142c536bd55e9569253b280bBill Wendling for (unsigned i = 0; i < Personalities.size(); ++i) { 2878c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov if (Personalities[i] == Personality) 2888c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov return i; 28910fff6078a7bc42f142c536bd55e9569253b280bBill Wendling } 2908c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov 2915e365e23f165d03fd2edc972bd4395e52a481c25Eric Christopher // This will happen if the current personality function is 2925e365e23f165d03fd2edc972bd4395e52a481c25Eric Christopher // in the zero index. 2938c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov return 0; 2948c7c17354c7d954de95a064ee89f8c82cccdb819Anton Korobeynikov} 29559667fe20379d65129ef5f3665e9f87e654c8623Jim Laskey 296