LLParser.cpp revision 267010864e139781ef5949939e081c41f954de0a
1df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===-- LLParser.cpp - Parser Class ---------------------------------------===// 2df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// 3df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// The LLVM Compiler Infrastructure 4df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// 5df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// This file is distributed under the University of Illinois Open Source 6df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// License. See LICENSE.TXT for details. 7df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// 8df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 9df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// 10df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// This file defines the parser class for .ll files. 11df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// 12df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 13df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 14df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#include "LLParser.h" 15df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#include "llvm/AutoUpgrade.h" 16df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#include "llvm/CallingConv.h" 17df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#include "llvm/Constants.h" 18df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#include "llvm/DerivedTypes.h" 19df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#include "llvm/InlineAsm.h" 20df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#include "llvm/Instructions.h" 21df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#include "llvm/Module.h" 221224c386981f7948f298ed9ad444c40609570f2eDan Gohman#include "llvm/Operator.h" 23df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#include "llvm/ValueSymbolTable.h" 24df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#include "llvm/ADT/SmallPtrSet.h" 25c25e7581b9b8088910da31702d4ca21c4734c6d7Torok Edwin#include "llvm/Support/ErrorHandling.h" 26df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#include "llvm/Support/raw_ostream.h" 27df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerusing namespace llvm; 28df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 290cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattnerstatic std::string getTypeString(const Type *T) { 300cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner std::string Result; 310cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner raw_string_ostream Tmp(Result); 320cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner Tmp << *T; 330cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner return Tmp.str(); 340cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner} 350cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner 363ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner/// Run: module ::= toplevelentity* 37ad7d1e2085a489dbedc65b99bab811771ead1aabChris Lattnerbool LLParser::Run() { 383ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner // Prime the lexer. 393ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner Lex.Lex(); 403ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner 41ad7d1e2085a489dbedc65b99bab811771ead1aabChris Lattner return ParseTopLevelEntities() || 42ad7d1e2085a489dbedc65b99bab811771ead1aabChris Lattner ValidateEndOfModule(); 43df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 44df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 45df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ValidateEndOfModule - Do final validity and sanity checks at the end of the 46df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// module. 47df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ValidateEndOfModule() { 48449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner // Handle any instruction metadata forward references. 49449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner if (!ForwardRefInstMetadata.empty()) { 50449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner for (DenseMap<Instruction*, std::vector<MDRef> >::iterator 51449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner I = ForwardRefInstMetadata.begin(), E = ForwardRefInstMetadata.end(); 52449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner I != E; ++I) { 53449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner Instruction *Inst = I->first; 54449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner const std::vector<MDRef> &MDList = I->second; 55449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner 56449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner for (unsigned i = 0, e = MDList.size(); i != e; ++i) { 57449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner unsigned SlotNo = MDList[i].MDSlot; 58449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner 59449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner if (SlotNo >= NumberedMetadata.size() || NumberedMetadata[SlotNo] == 0) 60449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner return Error(MDList[i].Loc, "use of undefined metadata '!" + 61d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer Twine(SlotNo) + "'"); 62449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner Inst->setMetadata(MDList[i].MDKind, NumberedMetadata[SlotNo]); 63449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner } 64449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner } 65449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner ForwardRefInstMetadata.clear(); 66449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner } 67449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner 68449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner 6909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner // If there are entries in ForwardRefBlockAddresses at this point, they are 7009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner // references after the function was defined. Resolve those now. 7109d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner while (!ForwardRefBlockAddresses.empty()) { 7209d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner // Okay, we are referencing an already-parsed function, resolve them now. 7309d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner Function *TheFn = 0; 7409d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner const ValID &Fn = ForwardRefBlockAddresses.begin()->first; 7509d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner if (Fn.Kind == ValID::t_GlobalName) 7609d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner TheFn = M->getFunction(Fn.StrVal); 7709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner else if (Fn.UIntVal < NumberedVals.size()) 7809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner TheFn = dyn_cast<Function>(NumberedVals[Fn.UIntVal]); 7909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 8009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner if (TheFn == 0) 8109d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner return Error(Fn.Loc, "unknown function referenced by blockaddress"); 8209d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 8309d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner // Resolve all these references. 8409d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner if (ResolveForwardRefBlockAddresses(TheFn, 8509d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner ForwardRefBlockAddresses.begin()->second, 8609d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 0)) 8709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner return true; 8809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 8909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner ForwardRefBlockAddresses.erase(ForwardRefBlockAddresses.begin()); 9009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner } 9109d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 9209d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 93df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ForwardRefTypes.empty()) 94df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ForwardRefTypes.begin()->second.second, 95df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "use of undefined type named '" + 96df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefTypes.begin()->first + "'"); 97df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ForwardRefTypeIDs.empty()) 98df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ForwardRefTypeIDs.begin()->second.second, 99df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "use of undefined type '%" + 100d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer Twine(ForwardRefTypeIDs.begin()->first) + "'"); 101a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 102df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ForwardRefVals.empty()) 103df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ForwardRefVals.begin()->second.second, 104df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "use of undefined value '@" + ForwardRefVals.begin()->first + 105df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "'"); 106a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 107df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ForwardRefValIDs.empty()) 108df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ForwardRefValIDs.begin()->second.second, 109df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "use of undefined value '@" + 110d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer Twine(ForwardRefValIDs.begin()->first) + "'"); 111a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1121c7eea60d3cbada2bae54c42fa178078a3ace9b3Devang Patel if (!ForwardRefMDNodes.empty()) 1131c7eea60d3cbada2bae54c42fa178078a3ace9b3Devang Patel return Error(ForwardRefMDNodes.begin()->second.second, 1141c7eea60d3cbada2bae54c42fa178078a3ace9b3Devang Patel "use of undefined metadata '!" + 115d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer Twine(ForwardRefMDNodes.begin()->first) + "'"); 116a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1171c7eea60d3cbada2bae54c42fa178078a3ace9b3Devang Patel 118df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Look for intrinsic functions and CallInst that need to be upgraded 119df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; ) 120df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner UpgradeCallsToIntrinsic(FI++); // must be post-increment, as we remove 121a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 122e4b275610a7a05b7ee4c0378a906a6330e4c4ab0Devang Patel // Check debug info intrinsics. 123e4b275610a7a05b7ee4c0378a906a6330e4c4ab0Devang Patel CheckDebugInfoIntrinsics(M); 124df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 125df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 126df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 12709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattnerbool LLParser::ResolveForwardRefBlockAddresses(Function *TheFn, 12809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner std::vector<std::pair<ValID, GlobalValue*> > &Refs, 12909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner PerFunctionState *PFS) { 13009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner // Loop over all the references, resolving them. 13109d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner for (unsigned i = 0, e = Refs.size(); i != e; ++i) { 13209d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner BasicBlock *Res; 133cdfc940912d56a63b6f12eaa7f3faf79cf74c693Chris Lattner if (PFS) { 13409d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner if (Refs[i].first.Kind == ValID::t_LocalName) 13509d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner Res = PFS->GetBB(Refs[i].first.StrVal, Refs[i].first.Loc); 136cdfc940912d56a63b6f12eaa7f3faf79cf74c693Chris Lattner else 13709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner Res = PFS->GetBB(Refs[i].first.UIntVal, Refs[i].first.Loc); 13809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner } else if (Refs[i].first.Kind == ValID::t_LocalID) { 13909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner return Error(Refs[i].first.Loc, 140ee7644da4cbc18f95495a5217c6a0c61eb13c767Chris Lattner "cannot take address of numeric label after the function is defined"); 14109d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner } else { 14209d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner Res = dyn_cast_or_null<BasicBlock>( 14309d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner TheFn->getValueSymbolTable().lookup(Refs[i].first.StrVal)); 14409d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner } 14509d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 146cdfc940912d56a63b6f12eaa7f3faf79cf74c693Chris Lattner if (Res == 0) 14709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner return Error(Refs[i].first.Loc, 14809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner "referenced value is not a basic block"); 14909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 15009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner // Get the BlockAddress for this and update references to use it. 15109d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner BlockAddress *BA = BlockAddress::get(TheFn, Res); 15209d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner Refs[i].second->replaceAllUsesWith(BA); 15309d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner Refs[i].second->eraseFromParent(); 15409d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner } 15509d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner return false; 15609d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner} 15709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 15809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 159df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 160df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// Top-Level Entities 161df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 162df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 163df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseTopLevelEntities() { 164df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner while (1) { 165df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Lex.getKind()) { 166df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner default: return TokError("expected top-level entity"); 167df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::Eof: return false; 168df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_declare: if (ParseDeclare()) return true; break; 169df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_define: if (ParseDefine()) return true; break; 170df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_module: if (ParseModuleAsm()) return true; break; 171df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_target: if (ParseTargetDefinition()) return true; break; 172df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_deplibs: if (ParseDepLibs()) return true; break; 1733845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman case lltok::LocalVarID: if (ParseUnnamedType()) return true; break; 174df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::LocalVar: if (ParseNamedType()) return true; break; 1753845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman case lltok::GlobalID: if (ParseUnnamedGlobal()) return true; break; 176df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::GlobalVar: if (ParseNamedGlobal()) return true; break; 177e434d277ca5183eeb6f881000732dcf4c8edd52eChris Lattner case lltok::exclaim: if (ParseStandaloneMetadata()) return true; break; 1781d92831759620a2e5ce4f5a3088c0a1a77a48c8fChris Lattner case lltok::MetadataVar: if (ParseNamedMetadata()) return true; break; 179df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 180df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // The Global variable production with no name can have many different 181df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // optional leading prefixes, the production is: 182df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // GlobalVar ::= OptionalLinkage OptionalVisibility OptionalThreadLocal 183bea4626f93c830e31f82cc947df28fdae583cd09Rafael Espindola // OptionalAddrSpace OptionalUnNammedAddr 184bea4626f93c830e31f82cc947df28fdae583cd09Rafael Espindola // ('constant'|'global') ... 1855e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_private: // OptionalLinkage 1865e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_linker_private: // OptionalLinkage 1875e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_linker_private_weak: // OptionalLinkage 18855ae515f9db484125a23429d4906c5edaf9f10d2Bill Wendling case lltok::kw_linker_private_weak_def_auto: // OptionalLinkage 1895e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_internal: // OptionalLinkage 1905e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_weak: // OptionalLinkage 1915e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_weak_odr: // OptionalLinkage 1925e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_linkonce: // OptionalLinkage 1935e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_linkonce_odr: // OptionalLinkage 1945e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_appending: // OptionalLinkage 1955e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_dllexport: // OptionalLinkage 1965e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_common: // OptionalLinkage 1975e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_dllimport: // OptionalLinkage 1985e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_extern_weak: // OptionalLinkage 1995e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_external: { // OptionalLinkage 200df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Linkage, Visibility; 201df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseOptionalLinkage(Linkage) || 202df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalVisibility(Visibility) || 203eeb4a84ac8d91fb1d5a7c484a1c7047409faee30Chris Lattner ParseGlobal("", SMLoc(), Linkage, true, Visibility)) 204df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 205df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 206df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 207df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_default: // OptionalVisibility 208df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_hidden: // OptionalVisibility 209df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_protected: { // OptionalVisibility 210df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Visibility; 211df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseOptionalVisibility(Visibility) || 212eeb4a84ac8d91fb1d5a7c484a1c7047409faee30Chris Lattner ParseGlobal("", SMLoc(), 0, false, Visibility)) 213df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 214df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 215df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 216a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 217df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_thread_local: // OptionalThreadLocal 218df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_addrspace: // OptionalAddrSpace 219df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_constant: // GlobalType 220df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_global: // GlobalType 221eeb4a84ac8d91fb1d5a7c484a1c7047409faee30Chris Lattner if (ParseGlobal("", SMLoc(), 0, false, 0)) return true; 222df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 223df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 224df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 225df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 226df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 227df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 228df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// toplevelentity 229df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'module' 'asm' STRINGCONSTANT 230df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseModuleAsm() { 231df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner assert(Lex.getKind() == lltok::kw_module); 232df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 233a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 234a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar std::string AsmStr; 2353ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseToken(lltok::kw_asm, "expected 'module asm'") || 2363ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseStringConstant(AsmStr)) return true; 237a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 23838c4e535493363b96eac47af9e7c056530137beaRafael Espindola M->appendModuleInlineAsm(AsmStr); 239df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 240df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 241df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 242df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// toplevelentity 243df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'target' 'triple' '=' STRINGCONSTANT 244df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'target' 'datalayout' '=' STRINGCONSTANT 245df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseTargetDefinition() { 246df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner assert(Lex.getKind() == lltok::kw_target); 2473ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner std::string Str; 248df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Lex.Lex()) { 249df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner default: return TokError("unknown target property"); 250df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_triple: 251df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2523ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseToken(lltok::equal, "expected '=' after target triple") || 2533ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseStringConstant(Str)) 254df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2553ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner M->setTargetTriple(Str); 256df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 257df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_datalayout: 258df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2593ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseToken(lltok::equal, "expected '=' after target datalayout") || 2603ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseStringConstant(Str)) 261df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2623ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner M->setDataLayout(Str); 263df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 264df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 265df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 266df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 267df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// toplevelentity 268df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'deplibs' '=' '[' ']' 269df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'deplibs' '=' '[' STRINGCONSTANT (',' STRINGCONSTANT)* ']' 270df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseDepLibs() { 271df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner assert(Lex.getKind() == lltok::kw_deplibs); 2723ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner Lex.Lex(); 2733ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseToken(lltok::equal, "expected '=' after deplibs") || 2743ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseToken(lltok::lsquare, "expected '=' after deplibs")) 2753ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return true; 276df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2773ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (EatIfPresent(lltok::rsquare)) 278df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 279a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2803ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner std::string Str; 2813ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseStringConstant(Str)) return true; 2823ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner M->addLibrary(Str); 283df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2843ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner while (EatIfPresent(lltok::comma)) { 2853ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseStringConstant(Str)) return true; 2863ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner M->addLibrary(Str); 287df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 288df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2893ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return ParseToken(lltok::rsquare, "expected ']' at end of list"); 290df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 291df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2923845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman/// ParseUnnamedType: 2933845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman/// ::= LocalVarID '=' 'type' type 294df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseUnnamedType() { 295a53616d08be710d22fd804e90b22df023cfdc0f9Chris Lattner LocTy TypeLoc = Lex.getLoc(); 2963845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman unsigned TypeID = NumberedTypes.size(); 297a53616d08be710d22fd804e90b22df023cfdc0f9Chris Lattner if (Lex.getUIntVal() != TypeID) 298a53616d08be710d22fd804e90b22df023cfdc0f9Chris Lattner return Error(Lex.getLoc(), "type expected to be numbered '%" + 299a53616d08be710d22fd804e90b22df023cfdc0f9Chris Lattner Twine(TypeID) + "'"); 300a53616d08be710d22fd804e90b22df023cfdc0f9Chris Lattner Lex.Lex(); // eat LocalVarID; 3013845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman 302a53616d08be710d22fd804e90b22df023cfdc0f9Chris Lattner if (ParseToken(lltok::equal, "expected '=' after name") || 303a53616d08be710d22fd804e90b22df023cfdc0f9Chris Lattner ParseToken(lltok::kw_type, "expected 'type' after '='")) 304a53616d08be710d22fd804e90b22df023cfdc0f9Chris Lattner return true; 305df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3061d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder Ty(Type::getVoidTy(Context)); 307df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseType(Ty)) return true; 308a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 309df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // See if this type was previously referenced. 310df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<unsigned, std::pair<PATypeHolder, LocTy> >::iterator 311df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FI = ForwardRefTypeIDs.find(TypeID); 312df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FI != ForwardRefTypeIDs.end()) { 313c38daba25b66f9a0386fc28861db66e62663310dChris Lattner if (FI->second.first.get() == Ty) 314c38daba25b66f9a0386fc28861db66e62663310dChris Lattner return Error(TypeLoc, "self referential type is invalid"); 315a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 316df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner cast<DerivedType>(FI->second.first.get())->refineAbstractTypeTo(Ty); 317df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Ty = FI->second.first.get(); 318df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefTypeIDs.erase(FI); 319df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 320a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 321df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner NumberedTypes.push_back(Ty); 322a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 323df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 324df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 325df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 326df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// toplevelentity 327df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= LocalVar '=' 'type' type 328df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseNamedType() { 329df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::string Name = Lex.getStrVal(); 330df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy NameLoc = Lex.getLoc(); 3313ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner Lex.Lex(); // eat LocalVar. 332a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3331d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder Ty(Type::getVoidTy(Context)); 334a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3353ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseToken(lltok::equal, "expected '=' after name") || 3363ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseToken(lltok::kw_type, "expected 'type' after name") || 3373ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseType(Ty)) 3383ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return true; 339a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 340df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Set the type name, checking for conflicts as we do so. 341df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner bool AlreadyExists = M->addTypeName(Name, Ty); 342df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!AlreadyExists) return false; 343df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 344df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // See if this type is a forward reference. We need to eagerly resolve 345df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // types to allow recursive type redefinitions below. 346df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<std::string, std::pair<PATypeHolder, LocTy> >::iterator 347df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FI = ForwardRefTypes.find(Name); 348df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FI != ForwardRefTypes.end()) { 349c38daba25b66f9a0386fc28861db66e62663310dChris Lattner if (FI->second.first.get() == Ty) 350c38daba25b66f9a0386fc28861db66e62663310dChris Lattner return Error(NameLoc, "self referential type is invalid"); 351c38daba25b66f9a0386fc28861db66e62663310dChris Lattner 352df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner cast<DerivedType>(FI->second.first.get())->refineAbstractTypeTo(Ty); 353df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Ty = FI->second.first.get(); 354df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefTypes.erase(FI); 355d589099eec8d120b5a7227072c4e717856e2276fChris Lattner return false; 356df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 357a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 358df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Inserting a name that is already defined, get the existing name. 359d3e724aeaf612529aa358a1394e74922111372afMatt Beaumont-Gay assert(M->getTypeByName(Name) && "Conflict but no matching type?!"); 360a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 361d589099eec8d120b5a7227072c4e717856e2276fChris Lattner // Otherwise, this is an attempt to redefine a type, report the error. 362df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(NameLoc, "redefinition of type named '" + Name + "' of type '" + 3630cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(Ty) + "'"); 364df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 365df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 366df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 367df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// toplevelentity 368df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'declare' FunctionHeader 369df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseDeclare() { 370df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner assert(Lex.getKind() == lltok::kw_declare); 371df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 372a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 373df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Function *F; 374df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return ParseFunctionHeader(F, false); 375df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 376df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 377df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// toplevelentity 378df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'define' FunctionHeader '{' ... 379df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseDefine() { 380df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner assert(Lex.getKind() == lltok::kw_define); 381df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 382a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 383df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Function *F; 3843ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return ParseFunctionHeader(F, true) || 3853ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseFunctionBody(*F); 386df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 387df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3883ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner/// ParseGlobalType 3893ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner/// ::= 'constant' 3903ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner/// ::= 'global' 391df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseGlobalType(bool &IsConstant) { 392df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Lex.getKind() == lltok::kw_constant) 393df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner IsConstant = true; 394df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner else if (Lex.getKind() == lltok::kw_global) 395df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner IsConstant = false; 39635b5107951582f58bf9d6f786fdddbf7811420fdDuncan Sands else { 39735b5107951582f58bf9d6f786fdddbf7811420fdDuncan Sands IsConstant = false; 398df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("expected 'global' or 'constant'"); 39935b5107951582f58bf9d6f786fdddbf7811420fdDuncan Sands } 400df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 401df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 402df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 403df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 4043845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman/// ParseUnnamedGlobal: 4053845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman/// OptionalVisibility ALIAS ... 4063845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman/// OptionalLinkage OptionalVisibility ... -> global variable 4073845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman/// GlobalID '=' OptionalVisibility ALIAS ... 4083845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman/// GlobalID '=' OptionalLinkage OptionalVisibility ... -> global variable 4093845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohmanbool LLParser::ParseUnnamedGlobal() { 4103845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman unsigned VarID = NumberedVals.size(); 4113845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman std::string Name; 4123845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman LocTy NameLoc = Lex.getLoc(); 4133845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman 4143845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman // Handle the GlobalID form. 4153845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman if (Lex.getKind() == lltok::GlobalID) { 4163845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman if (Lex.getUIntVal() != VarID) 4173845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman return Error(Lex.getLoc(), "variable expected to be numbered '%" + 418d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer Twine(VarID) + "'"); 4193845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman Lex.Lex(); // eat GlobalID; 4203845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman 4213845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman if (ParseToken(lltok::equal, "expected '=' after name")) 4223845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman return true; 4233845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman } 4243845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman 4253845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman bool HasLinkage; 4263845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman unsigned Linkage, Visibility; 4273845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman if (ParseOptionalLinkage(Linkage, HasLinkage) || 4283845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman ParseOptionalVisibility(Visibility)) 4293845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman return true; 430a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 4313845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman if (HasLinkage || Lex.getKind() != lltok::kw_alias) 4323845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility); 4333845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman return ParseAlias(Name, NameLoc, Visibility); 4343845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman} 4353845e50edea58edd0f5e0f2b732e0106b53ba279Dan Gohman 436df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseNamedGlobal: 437df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// GlobalVar '=' OptionalVisibility ALIAS ... 438df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// GlobalVar '=' OptionalLinkage OptionalVisibility ... -> global variable 439df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseNamedGlobal() { 440df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner assert(Lex.getKind() == lltok::GlobalVar); 441df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy NameLoc = Lex.getLoc(); 442df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::string Name = Lex.getStrVal(); 443df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 444a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 445df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner bool HasLinkage; 446df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Linkage, Visibility; 447df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::equal, "expected '=' in global variable") || 448df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalLinkage(Linkage, HasLinkage) || 449df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalVisibility(Visibility)) 450df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 451a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 452df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (HasLinkage || Lex.getKind() != lltok::kw_alias) 453df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility); 454df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return ParseAlias(Name, NameLoc, Visibility); 455df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 456df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 457256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel// MDString: 458256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel// ::= '!' STRINGCONSTANT 459442ffa1c5688f32b275f7657b5ee3646bfe8ffa3Chris Lattnerbool LLParser::ParseMDString(MDString *&Result) { 460256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel std::string Str; 461256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel if (ParseStringConstant(Str)) return true; 462442ffa1c5688f32b275f7657b5ee3646bfe8ffa3Chris Lattner Result = MDString::get(Context, Str); 463256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel return false; 464256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel} 465256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel 466256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel// MDNode: 467256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel// ::= '!' MDNodeNumber 468449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner// 469449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner/// This version of ParseMDNodeID returns the slot number and null in the case 470449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner/// of a forward reference. 471449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattnerbool LLParser::ParseMDNodeID(MDNode *&Result, unsigned &SlotNo) { 472449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner // !{ ..., !42, ... } 473449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner if (ParseUInt32(SlotNo)) return true; 474449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner 475449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner // Check existing MDNode. 476449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner if (SlotNo < NumberedMetadata.size() && NumberedMetadata[SlotNo] != 0) 477449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner Result = NumberedMetadata[SlotNo]; 478449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner else 479449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner Result = 0; 480449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner return false; 481449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner} 482449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner 4834a72efc0ad18c1b9c98bb2f0cb881a39a7010b53Chris Lattnerbool LLParser::ParseMDNodeID(MDNode *&Result) { 484256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel // !{ ..., !42, ... } 485256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel unsigned MID = 0; 486449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner if (ParseMDNodeID(Result, MID)) return true; 487a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 488449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner // If not a forward reference, just return it now. 489449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner if (Result) return false; 490256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel 491449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner // Otherwise, create MDNode forward reference. 492ec9186bcf975c9ffa3ec7ca97867f0ec6eb55115Jay Foad MDNode *FwdNode = MDNode::getTemporary(Context, ArrayRef<Value*>()); 493256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel ForwardRefMDNodes[MID] = std::make_pair(FwdNode, Lex.getLoc()); 4940834e6a07b1965712781804b0113a8b282f40a5fChris Lattner 4950834e6a07b1965712781804b0113a8b282f40a5fChris Lattner if (NumberedMetadata.size() <= MID) 4960834e6a07b1965712781804b0113a8b282f40a5fChris Lattner NumberedMetadata.resize(MID+1); 4970834e6a07b1965712781804b0113a8b282f40a5fChris Lattner NumberedMetadata[MID] = FwdNode; 498442ffa1c5688f32b275f7657b5ee3646bfe8ffa3Chris Lattner Result = FwdNode; 499256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel return false; 500a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar} 501256be96457faf173de2ac3f8145077b7e6fb41baDevang Patel 50284d03b11d016821e0a2f31fc14a3cfd24b0df862Chris Lattner/// ParseNamedMetadata: 503eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel/// !foo = !{ !1, !2 } 504eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patelbool LLParser::ParseNamedMetadata() { 5051d92831759620a2e5ce4f5a3088c0a1a77a48c8fChris Lattner assert(Lex.getKind() == lltok::MetadataVar); 506eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel std::string Name = Lex.getStrVal(); 5071d92831759620a2e5ce4f5a3088c0a1a77a48c8fChris Lattner Lex.Lex(); 508eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel 50984d03b11d016821e0a2f31fc14a3cfd24b0df862Chris Lattner if (ParseToken(lltok::equal, "expected '=' here") || 510e434d277ca5183eeb6f881000732dcf4c8edd52eChris Lattner ParseToken(lltok::exclaim, "Expected '!' here") || 51184d03b11d016821e0a2f31fc14a3cfd24b0df862Chris Lattner ParseToken(lltok::lbrace, "Expected '{' here")) 512eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel return true; 513eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel 51417aa92c92a925b4a674440c7ef088c223990e854Dan Gohman NamedMDNode *NMD = M->getOrInsertNamedMetadata(Name); 5159dc8ae110f4b23df8f42fe6a09087061938a06a7Dan Gohman if (Lex.getKind() != lltok::rbrace) 5169dc8ae110f4b23df8f42fe6a09087061938a06a7Dan Gohman do { 5179dc8ae110f4b23df8f42fe6a09087061938a06a7Dan Gohman if (ParseToken(lltok::exclaim, "Expected '!' here")) 5189dc8ae110f4b23df8f42fe6a09087061938a06a7Dan Gohman return true; 519442ffa1c5688f32b275f7657b5ee3646bfe8ffa3Chris Lattner 5209dc8ae110f4b23df8f42fe6a09087061938a06a7Dan Gohman MDNode *N = 0; 5219dc8ae110f4b23df8f42fe6a09087061938a06a7Dan Gohman if (ParseMDNodeID(N)) return true; 52217aa92c92a925b4a674440c7ef088c223990e854Dan Gohman NMD->addOperand(N); 5239dc8ae110f4b23df8f42fe6a09087061938a06a7Dan Gohman } while (EatIfPresent(lltok::comma)); 524eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel 525eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel if (ParseToken(lltok::rbrace, "expected end of metadata node")) 526eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel return true; 527eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel 528eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel return false; 529eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel} 530eff2ab61b5d411fe64ba601d402b7c549644b590Devang Patel 531923078c65d5a37a4f135705300c9feea49487de5Devang Patel/// ParseStandaloneMetadata: 532a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar/// !42 = !{...} 533923078c65d5a37a4f135705300c9feea49487de5Devang Patelbool LLParser::ParseStandaloneMetadata() { 534e434d277ca5183eeb6f881000732dcf4c8edd52eChris Lattner assert(Lex.getKind() == lltok::exclaim); 535923078c65d5a37a4f135705300c9feea49487de5Devang Patel Lex.Lex(); 536923078c65d5a37a4f135705300c9feea49487de5Devang Patel unsigned MetadataID = 0; 537923078c65d5a37a4f135705300c9feea49487de5Devang Patel 538923078c65d5a37a4f135705300c9feea49487de5Devang Patel LocTy TyLoc; 5391d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder Ty(Type::getVoidTy(Context)); 540104cf9e02b0ed94d4173869a598af6c6972a8660Devang Patel SmallVector<Value *, 16> Elts; 5413f5132a024960b7d2e226a210c5923c094f036efChris Lattner if (ParseUInt32(MetadataID) || 5423f5132a024960b7d2e226a210c5923c094f036efChris Lattner ParseToken(lltok::equal, "expected '=' here") || 5433f5132a024960b7d2e226a210c5923c094f036efChris Lattner ParseType(Ty, TyLoc) || 544e434d277ca5183eeb6f881000732dcf4c8edd52eChris Lattner ParseToken(lltok::exclaim, "Expected '!' here") || 5453f5132a024960b7d2e226a210c5923c094f036efChris Lattner ParseToken(lltok::lbrace, "Expected '{' here") || 54624e64df7ec25b55aa872c2ef33728dfbb8c353c4Victor Hernandez ParseMDNodeVector(Elts, NULL) || 5473f5132a024960b7d2e226a210c5923c094f036efChris Lattner ParseToken(lltok::rbrace, "expected end of metadata node")) 548104cf9e02b0ed94d4173869a598af6c6972a8660Devang Patel return true; 549104cf9e02b0ed94d4173869a598af6c6972a8660Devang Patel 550ec9186bcf975c9ffa3ec7ca97867f0ec6eb55115Jay Foad MDNode *Init = MDNode::get(Context, Elts); 5510834e6a07b1965712781804b0113a8b282f40a5fChris Lattner 5520834e6a07b1965712781804b0113a8b282f40a5fChris Lattner // See if this was forward referenced, if so, handle it. 553e80250ec84e6e3aa916a66acc507241e7bde89c9Chris Lattner std::map<unsigned, std::pair<TrackingVH<MDNode>, LocTy> >::iterator 5541c7eea60d3cbada2bae54c42fa178078a3ace9b3Devang Patel FI = ForwardRefMDNodes.find(MetadataID); 5551c7eea60d3cbada2bae54c42fa178078a3ace9b3Devang Patel if (FI != ForwardRefMDNodes.end()) { 556489b29b0a4ee4526e3d50ad88d3d48745baf5042Dan Gohman MDNode *Temp = FI->second.first; 557489b29b0a4ee4526e3d50ad88d3d48745baf5042Dan Gohman Temp->replaceAllUsesWith(Init); 558489b29b0a4ee4526e3d50ad88d3d48745baf5042Dan Gohman MDNode::deleteTemporary(Temp); 5591c7eea60d3cbada2bae54c42fa178078a3ace9b3Devang Patel ForwardRefMDNodes.erase(FI); 5600834e6a07b1965712781804b0113a8b282f40a5fChris Lattner 5610834e6a07b1965712781804b0113a8b282f40a5fChris Lattner assert(NumberedMetadata[MetadataID] == Init && "Tracking VH didn't work"); 5620834e6a07b1965712781804b0113a8b282f40a5fChris Lattner } else { 5630834e6a07b1965712781804b0113a8b282f40a5fChris Lattner if (MetadataID >= NumberedMetadata.size()) 5640834e6a07b1965712781804b0113a8b282f40a5fChris Lattner NumberedMetadata.resize(MetadataID+1); 5650834e6a07b1965712781804b0113a8b282f40a5fChris Lattner 5660834e6a07b1965712781804b0113a8b282f40a5fChris Lattner if (NumberedMetadata[MetadataID] != 0) 5670834e6a07b1965712781804b0113a8b282f40a5fChris Lattner return TokError("Metadata id is already used"); 5680834e6a07b1965712781804b0113a8b282f40a5fChris Lattner NumberedMetadata[MetadataID] = Init; 5691c7eea60d3cbada2bae54c42fa178078a3ace9b3Devang Patel } 5701c7eea60d3cbada2bae54c42fa178078a3ace9b3Devang Patel 571923078c65d5a37a4f135705300c9feea49487de5Devang Patel return false; 572923078c65d5a37a4f135705300c9feea49487de5Devang Patel} 573923078c65d5a37a4f135705300c9feea49487de5Devang Patel 574df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseAlias: 575df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= GlobalVar '=' OptionalVisibility 'alias' OptionalLinkage Aliasee 576df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// Aliasee 577040f758e3abc75bdf6ddb1ce7bea1e1ed1293ccfChris Lattner/// ::= TypeAndValue 578040f758e3abc75bdf6ddb1ce7bea1e1ed1293ccfChris Lattner/// ::= 'bitcast' '(' TypeAndValue 'to' Type ')' 579dd8004dc73d091ccb3927dbbc3b41639a3738ae3Dan Gohman/// ::= 'getelementptr' 'inbounds'? '(' ... ')' 580df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// 581df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// Everything through visibility has already been parsed. 582df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// 583df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseAlias(const std::string &Name, LocTy NameLoc, 584df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Visibility) { 585df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner assert(Lex.getKind() == lltok::kw_alias); 586df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 587df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Linkage; 588df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy LinkageLoc = Lex.getLoc(); 589df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseOptionalLinkage(Linkage)) 590df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 591df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 592df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Linkage != GlobalValue::ExternalLinkage && 593667d4b8de6dea70195ff12ef39a4deebffa2f5c7Duncan Sands Linkage != GlobalValue::WeakAnyLinkage && 594667d4b8de6dea70195ff12ef39a4deebffa2f5c7Duncan Sands Linkage != GlobalValue::WeakODRLinkage && 595bb46f52027416598a662dc1c58f48d9d56b1a65bRafael Espindola Linkage != GlobalValue::InternalLinkage && 5963d10a5a75794356a0a568ce283713adc3a963200Bill Wendling Linkage != GlobalValue::PrivateLinkage && 5975e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling Linkage != GlobalValue::LinkerPrivateLinkage && 59855ae515f9db484125a23429d4906c5edaf9f10d2Bill Wendling Linkage != GlobalValue::LinkerPrivateWeakLinkage && 59955ae515f9db484125a23429d4906c5edaf9f10d2Bill Wendling Linkage != GlobalValue::LinkerPrivateWeakDefAutoLinkage) 600df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(LinkageLoc, "invalid linkage type for alias"); 601a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 602df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Constant *Aliasee; 603df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy AliaseeLoc = Lex.getLoc(); 604040f758e3abc75bdf6ddb1ce7bea1e1ed1293ccfChris Lattner if (Lex.getKind() != lltok::kw_bitcast && 605040f758e3abc75bdf6ddb1ce7bea1e1ed1293ccfChris Lattner Lex.getKind() != lltok::kw_getelementptr) { 606df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseGlobalTypeAndValue(Aliasee)) return true; 607df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else { 608df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // The bitcast dest type is not present, it is implied by the dest type. 609df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ValID ID; 610df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseValID(ID)) return true; 611df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ID.Kind != ValID::t_Constant) 612df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(AliaseeLoc, "invalid aliasee"); 613df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Aliasee = ID.ConstantVal; 614df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 615a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 6161df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (!Aliasee->getType()->isPointerTy()) 617df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(AliaseeLoc, "alias must have pointer type"); 618df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 619df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Okay, create the alias but do not insert it into the module yet. 620df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GlobalAlias* GA = new GlobalAlias(Aliasee->getType(), 621df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner (GlobalValue::LinkageTypes)Linkage, Name, 622df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Aliasee); 623df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GA->setVisibility((GlobalValue::VisibilityTypes)Visibility); 624a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 625df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // See if this value already exists in the symbol table. If so, it is either 626df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // a redefinition or a definition of a forward reference. 6271d871c5e547996a8dd5192e48d22aadf11cd2a9dChris Lattner if (GlobalValue *Val = M->getNamedValue(Name)) { 628df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // See if this was a redefinition. If so, there is no entry in 629df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // ForwardRefVals. 630df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<std::string, std::pair<GlobalValue*, LocTy> >::iterator 631df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner I = ForwardRefVals.find(Name); 632df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I == ForwardRefVals.end()) 633df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(NameLoc, "redefinition of global named '@" + Name + "'"); 634df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 635df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Otherwise, this was a definition of forward ref. Verify that types 636df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // agree. 637df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val->getType() != GA->getType()) 638df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(NameLoc, 639df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "forward reference and definition of alias have different types"); 640a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 641df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If they agree, just RAUW the old value with the alias and remove the 642df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // forward ref info. 643df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Val->replaceAllUsesWith(GA); 644df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Val->eraseFromParent(); 645df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefVals.erase(I); 646df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 647a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 648df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Insert into the module, we know its name won't collide now. 649df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner M->getAliasList().push_back(GA); 650af81235ef96a7a005b7fdfe5a64cce30df3d820dBenjamin Kramer assert(GA->getName() == Name && "Should not be a name conflict!"); 651a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 652df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 653df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 654df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 655df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseGlobal 656df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= GlobalVar '=' OptionalLinkage OptionalVisibility OptionalThreadLocal 657bea4626f93c830e31f82cc947df28fdae583cd09Rafael Espindola/// OptionalAddrSpace OptionalUnNammedAddr GlobalType Type Const 658df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= OptionalLinkage OptionalVisibility OptionalThreadLocal 659bea4626f93c830e31f82cc947df28fdae583cd09Rafael Espindola/// OptionalAddrSpace OptionalUnNammedAddr GlobalType Type Const 660df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// 661df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// Everything through visibility has been parsed already. 662df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// 663df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc, 664df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Linkage, bool HasLinkage, 665df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Visibility) { 666df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned AddrSpace; 667bea4626f93c830e31f82cc947df28fdae583cd09Rafael Espindola bool ThreadLocal, IsConstant, UnnamedAddr; 668d72479c2f061e3b57adf3d054875665f25a30d90Rafael Espindola LocTy UnnamedAddrLoc; 669df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy TyLoc; 670a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 6711d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder Ty(Type::getVoidTy(Context)); 672df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseOptionalToken(lltok::kw_thread_local, ThreadLocal) || 673df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalAddrSpace(AddrSpace) || 674d72479c2f061e3b57adf3d054875665f25a30d90Rafael Espindola ParseOptionalToken(lltok::kw_unnamed_addr, UnnamedAddr, 675d72479c2f061e3b57adf3d054875665f25a30d90Rafael Espindola &UnnamedAddrLoc) || 676df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalType(IsConstant) || 677df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseType(Ty, TyLoc)) 678df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 679a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 680df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If the linkage is specified and is external, then no initializer is 681df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // present. 682df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Constant *Init = 0; 683df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!HasLinkage || (Linkage != GlobalValue::DLLImportLinkage && 6845f4ee1fc5d00ae55c30fa2ce450c69be4c6d6e63Duncan Sands Linkage != GlobalValue::ExternalWeakLinkage && 685df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Linkage != GlobalValue::ExternalLinkage)) { 686df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseGlobalValue(Ty, Init)) 687df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 688df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 689df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 6901df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (Ty->isFunctionTy() || Ty->isLabelTy()) 6914a2f112a5c774cb1ab3fd890a88ba1db9709f561Chris Lattner return Error(TyLoc, "invalid type for global variable"); 692a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 693df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GlobalVariable *GV = 0; 694df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 695df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // See if the global was forward referenced, if so, use the global. 69691dad87ddc1e69ac5fa8953a583de4185e1dd0d7Chris Lattner if (!Name.empty()) { 6971d871c5e547996a8dd5192e48d22aadf11cd2a9dChris Lattner if (GlobalValue *GVal = M->getNamedValue(Name)) { 6981d871c5e547996a8dd5192e48d22aadf11cd2a9dChris Lattner if (!ForwardRefVals.erase(Name) || !isa<GlobalValue>(GVal)) 6991d871c5e547996a8dd5192e48d22aadf11cd2a9dChris Lattner return Error(NameLoc, "redefinition of global '@" + Name + "'"); 7001d871c5e547996a8dd5192e48d22aadf11cd2a9dChris Lattner GV = cast<GlobalVariable>(GVal); 7011d871c5e547996a8dd5192e48d22aadf11cd2a9dChris Lattner } 702df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else { 703df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<unsigned, std::pair<GlobalValue*, LocTy> >::iterator 704df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner I = ForwardRefValIDs.find(NumberedVals.size()); 705df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I != ForwardRefValIDs.end()) { 706df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GV = cast<GlobalVariable>(I->second.first); 707df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefValIDs.erase(I); 708df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 709df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 710df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 711df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (GV == 0) { 712a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar GV = new GlobalVariable(*M, Ty, false, GlobalValue::ExternalLinkage, 0, 713e9b11b431308f4766b73cda93e38ec930c912122Owen Anderson Name, 0, false, AddrSpace); 714df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else { 715df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (GV->getType()->getElementType() != Ty) 716df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(TyLoc, 717df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "forward reference and definition of global have different types"); 718a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 719df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Move the forward-reference to the correct spot in the module. 720df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner M->getGlobalList().splice(M->global_end(), M->getGlobalList(), GV); 721df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 722df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 723df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Name.empty()) 724df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner NumberedVals.push_back(GV); 725a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 726df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Set the parsed properties on the global. 727df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Init) 728df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GV->setInitializer(Init); 729df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GV->setConstant(IsConstant); 730df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GV->setLinkage((GlobalValue::LinkageTypes)Linkage); 731df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GV->setVisibility((GlobalValue::VisibilityTypes)Visibility); 732df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GV->setThreadLocal(ThreadLocal); 733bea4626f93c830e31f82cc947df28fdae583cd09Rafael Espindola GV->setUnnamedAddr(UnnamedAddr); 734a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 735df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Parse attributes on the global. 736df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner while (Lex.getKind() == lltok::comma) { 737df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 738a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 739df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Lex.getKind() == lltok::kw_section) { 740df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 741df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GV->setSection(Lex.getStrVal()); 742df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::StringConstant, "expected global section string")) 743df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 744df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else if (Lex.getKind() == lltok::kw_align) { 745df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Alignment; 746df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseOptionalAlignment(Alignment)) return true; 747df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GV->setAlignment(Alignment); 748df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else { 749df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner TokError("unknown global variable property!"); 750df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 751df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 752a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 753df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 754df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 755df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 756df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 757df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 758df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// GlobalValue Reference/Resolution Routines. 759df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 760df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 761df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// GetGlobalVal - Get a value with the specified name or ID, creating a 762df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// forward reference record if needed. This can return null if the value 763df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// exists but does not have the right type. 764df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris LattnerGlobalValue *LLParser::GetGlobalVal(const std::string &Name, const Type *Ty, 765df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc) { 766df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner const PointerType *PTy = dyn_cast<PointerType>(Ty); 767df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (PTy == 0) { 768df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Error(Loc, "global variable reference must have pointer type"); 769df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return 0; 770df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 771a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 772df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Look this name up in the normal function symbol table. 773df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GlobalValue *Val = 774df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner cast_or_null<GlobalValue>(M->getValueSymbolTable().lookup(Name)); 775a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 776df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If this is a forward reference for the value, see if we already created a 777df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // forward ref record. 778df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val == 0) { 779df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<std::string, std::pair<GlobalValue*, LocTy> >::iterator 780df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner I = ForwardRefVals.find(Name); 781df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I != ForwardRefVals.end()) 782df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Val = I->second.first; 783df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 784a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 785df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If we have the value in the symbol table or fwd-ref table, return it. 786df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val) { 787df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val->getType() == Ty) return Val; 788df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Error(Loc, "'@" + Name + "' defined with type '" + 7890cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(Val->getType()) + "'"); 790df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return 0; 791df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 792a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 793df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Otherwise, create a new forward reference for this value and remember it. 794df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GlobalValue *FwdVal; 7951e407c338f6944242facb1e0c32903162cc366f0Chris Lattner if (const FunctionType *FT = dyn_cast<FunctionType>(PTy->getElementType())) { 7961e407c338f6944242facb1e0c32903162cc366f0Chris Lattner // Function types can return opaque but functions can't. 79747c5188789bc40671504ed1fa3a44765cefba44fDuncan Sands if (FT->getReturnType()->isOpaqueTy()) { 7981e407c338f6944242facb1e0c32903162cc366f0Chris Lattner Error(Loc, "function may not return opaque type"); 7991e407c338f6944242facb1e0c32903162cc366f0Chris Lattner return 0; 8001e407c338f6944242facb1e0c32903162cc366f0Chris Lattner } 801a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 8025f4ee1fc5d00ae55c30fa2ce450c69be4c6d6e63Duncan Sands FwdVal = Function::Create(FT, GlobalValue::ExternalWeakLinkage, Name, M); 8031e407c338f6944242facb1e0c32903162cc366f0Chris Lattner } else { 804e9b11b431308f4766b73cda93e38ec930c912122Owen Anderson FwdVal = new GlobalVariable(*M, PTy->getElementType(), false, 805e9b11b431308f4766b73cda93e38ec930c912122Owen Anderson GlobalValue::ExternalWeakLinkage, 0, Name); 8061e407c338f6944242facb1e0c32903162cc366f0Chris Lattner } 807a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 808df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefVals[Name] = std::make_pair(FwdVal, Loc); 809df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return FwdVal; 810df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 811df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 812df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris LattnerGlobalValue *LLParser::GetGlobalVal(unsigned ID, const Type *Ty, LocTy Loc) { 813df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner const PointerType *PTy = dyn_cast<PointerType>(Ty); 814df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (PTy == 0) { 815df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Error(Loc, "global variable reference must have pointer type"); 816df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return 0; 817df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 818a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 819df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GlobalValue *Val = ID < NumberedVals.size() ? NumberedVals[ID] : 0; 820a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 821df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If this is a forward reference for the value, see if we already created a 822df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // forward ref record. 823df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val == 0) { 824df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<unsigned, std::pair<GlobalValue*, LocTy> >::iterator 825df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner I = ForwardRefValIDs.find(ID); 826df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I != ForwardRefValIDs.end()) 827df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Val = I->second.first; 828df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 829a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 830df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If we have the value in the symbol table or fwd-ref table, return it. 831df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val) { 832df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val->getType() == Ty) return Val; 833d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer Error(Loc, "'@" + Twine(ID) + "' defined with type '" + 8340cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(Val->getType()) + "'"); 835df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return 0; 836df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 837a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 838df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Otherwise, create a new forward reference for this value and remember it. 839df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner GlobalValue *FwdVal; 840830703b1bd88511e29eec76b1fd146524bc9c5a1Chris Lattner if (const FunctionType *FT = dyn_cast<FunctionType>(PTy->getElementType())) { 841830703b1bd88511e29eec76b1fd146524bc9c5a1Chris Lattner // Function types can return opaque but functions can't. 84247c5188789bc40671504ed1fa3a44765cefba44fDuncan Sands if (FT->getReturnType()->isOpaqueTy()) { 8430d8484f2edb1069522f5c3de6467433e0fbe9323Chris Lattner Error(Loc, "function may not return opaque type"); 844830703b1bd88511e29eec76b1fd146524bc9c5a1Chris Lattner return 0; 845830703b1bd88511e29eec76b1fd146524bc9c5a1Chris Lattner } 8465f4ee1fc5d00ae55c30fa2ce450c69be4c6d6e63Duncan Sands FwdVal = Function::Create(FT, GlobalValue::ExternalWeakLinkage, "", M); 847830703b1bd88511e29eec76b1fd146524bc9c5a1Chris Lattner } else { 848e9b11b431308f4766b73cda93e38ec930c912122Owen Anderson FwdVal = new GlobalVariable(*M, PTy->getElementType(), false, 849e9b11b431308f4766b73cda93e38ec930c912122Owen Anderson GlobalValue::ExternalWeakLinkage, 0, ""); 850830703b1bd88511e29eec76b1fd146524bc9c5a1Chris Lattner } 851a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 852df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc); 853df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return FwdVal; 854df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 855df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 856df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 857df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 858df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// Helper Routines. 859df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 860df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 861df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseToken - If the current token has the specified kind, eat it and return 862df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// success. Otherwise, emit the specified error and return failure. 863df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseToken(lltok::Kind T, const char *ErrMsg) { 864df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Lex.getKind() != T) 865df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError(ErrMsg); 866df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 867df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 868df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 869df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 8703ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner/// ParseStringConstant 8713ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner/// ::= StringConstant 8723ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattnerbool LLParser::ParseStringConstant(std::string &Result) { 8733ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (Lex.getKind() != lltok::StringConstant) 8743ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return TokError("expected string constant"); 8753ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner Result = Lex.getStrVal(); 8763ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner Lex.Lex(); 8773ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return false; 8783ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner} 8793ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner 8803ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner/// ParseUInt32 8813ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner/// ::= uint32 8823ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattnerbool LLParser::ParseUInt32(unsigned &Val) { 883df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned()) 884df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("expected integer"); 885df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner uint64_t Val64 = Lex.getAPSIntVal().getLimitedValue(0xFFFFFFFFULL+1); 886df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val64 != unsigned(Val64)) 887df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("expected 32-bit integer (too large)"); 888df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Val = Val64; 889df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 890df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 891df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 892df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 893df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 894df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseOptionalAddrSpace 895df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// := /*empty*/ 896df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// := 'addrspace' '(' uint32 ')' 897df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseOptionalAddrSpace(unsigned &AddrSpace) { 898df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner AddrSpace = 0; 8993ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (!EatIfPresent(lltok::kw_addrspace)) 900df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 901df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return ParseToken(lltok::lparen, "expected '(' in address space") || 9023ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseUInt32(AddrSpace) || 903df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rparen, "expected ')' in address space"); 904a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar} 905df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 906df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseOptionalAttrs - Parse a potentially empty attribute list. AttrKind 907df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// indicates what kind of attribute list this is: 0: function arg, 1: result, 908df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// 2: function attr. 909df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseOptionalAttrs(unsigned &Attrs, unsigned AttrKind) { 910df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Attrs = Attribute::None; 911df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy AttrLoc = Lex.getLoc(); 912a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 913df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner while (1) { 914df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Lex.getKind()) { 915df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner default: // End of attributes. 916df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (AttrKind != 2 && (Attrs & Attribute::FunctionOnly)) 917df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(AttrLoc, "invalid use of function-only attribute"); 918a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 919f3a789d931de6b5be729c33ff476fb20f0badbb1Chris Lattner // As a hack, we allow "align 2" on functions as a synonym for 920f3a789d931de6b5be729c33ff476fb20f0badbb1Chris Lattner // "alignstack 2". 921f3a789d931de6b5be729c33ff476fb20f0badbb1Chris Lattner if (AttrKind == 2 && 922f3a789d931de6b5be729c33ff476fb20f0badbb1Chris Lattner (Attrs & ~(Attribute::FunctionOnly | Attribute::Alignment))) 923f3a789d931de6b5be729c33ff476fb20f0badbb1Chris Lattner return Error(AttrLoc, "invalid use of attribute on a function"); 924f3a789d931de6b5be729c33ff476fb20f0badbb1Chris Lattner 925f3a789d931de6b5be729c33ff476fb20f0badbb1Chris Lattner if (AttrKind != 0 && (Attrs & Attribute::ParameterOnly)) 926df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(AttrLoc, "invalid use of parameter-only attribute"); 927a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 928df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 929578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_zeroext: Attrs |= Attribute::ZExt; break; 930578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_signext: Attrs |= Attribute::SExt; break; 931578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_inreg: Attrs |= Attribute::InReg; break; 932578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_sret: Attrs |= Attribute::StructRet; break; 933578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_noalias: Attrs |= Attribute::NoAlias; break; 934578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_nocapture: Attrs |= Attribute::NoCapture; break; 935578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_byval: Attrs |= Attribute::ByVal; break; 936578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_nest: Attrs |= Attribute::Nest; break; 937578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel 938578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_noreturn: Attrs |= Attribute::NoReturn; break; 939578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_nounwind: Attrs |= Attribute::NoUnwind; break; 940fc2bb8c4448fa884d79e437cc2d2627a7d7740a8Rafael Espindola case lltok::kw_uwtable: Attrs |= Attribute::UWTable; break; 941578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_noinline: Attrs |= Attribute::NoInline; break; 942578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_readnone: Attrs |= Attribute::ReadNone; break; 943578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_readonly: Attrs |= Attribute::ReadOnly; break; 944570a4a5d9ca31f276a67502d1e0533d59d331feaJakob Stoklund Olesen case lltok::kw_inlinehint: Attrs |= Attribute::InlineHint; break; 945578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_alwaysinline: Attrs |= Attribute::AlwaysInline; break; 946578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_optsize: Attrs |= Attribute::OptimizeForSize; break; 947578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_ssp: Attrs |= Attribute::StackProtect; break; 948578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_sspreq: Attrs |= Attribute::StackProtectReq; break; 949578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_noredzone: Attrs |= Attribute::NoRedZone; break; 950578efa920abd218ba75a0fb3c9b8398f4c0a774bDevang Patel case lltok::kw_noimplicitfloat: Attrs |= Attribute::NoImplicitFloat; break; 951c5ec8a78ea898087ad361e5b755f74a76150e5fdAnton Korobeynikov case lltok::kw_naked: Attrs |= Attribute::Naked; break; 952970bfcc7d8b9991430caa7ab33975617f3f4c40dCharles Davis case lltok::kw_hotpatch: Attrs |= Attribute::Hotpatch; break; 9533a3465b71db858723988f61d72b7135e6dff329bJohn McCall case lltok::kw_nonlazybind: Attrs |= Attribute::NonLazyBind; break; 954a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 9551e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis case lltok::kw_alignstack: { 9561e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis unsigned Alignment; 9571e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis if (ParseOptionalStackAlignment(Alignment)) 9581e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis return true; 9591e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis Attrs |= Attribute::constructStackAlignmentFromInt(Alignment); 9601e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis continue; 9611e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis } 9621e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis 963df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_align: { 964df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Alignment; 965df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseOptionalAlignment(Alignment)) 966df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 967df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Attrs |= Attribute::constructAlignmentFromInt(Alignment); 968df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner continue; 969df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 9701e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis 971df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 972df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 973df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 974df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 975df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 976df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseOptionalLinkage 977df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= /*empty*/ 978bb46f52027416598a662dc1c58f48d9d56b1a65bRafael Espindola/// ::= 'private' 9793d10a5a75794356a0a568ce283713adc3a963200Bill Wendling/// ::= 'linker_private' 9805e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling/// ::= 'linker_private_weak' 98155ae515f9db484125a23429d4906c5edaf9f10d2Bill Wendling/// ::= 'linker_private_weak_def_auto' 982df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'internal' 983df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'weak' 984667d4b8de6dea70195ff12ef39a4deebffa2f5c7Duncan Sands/// ::= 'weak_odr' 985df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'linkonce' 986667d4b8de6dea70195ff12ef39a4deebffa2f5c7Duncan Sands/// ::= 'linkonce_odr' 9875e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling/// ::= 'available_externally' 988df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'appending' 989df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'dllexport' 990df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'common' 991df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'dllimport' 992df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'extern_weak' 993df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'external' 994df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseOptionalLinkage(unsigned &Res, bool &HasLinkage) { 995df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner HasLinkage = false; 996df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Lex.getKind()) { 9973d10a5a75794356a0a568ce283713adc3a963200Bill Wendling default: Res=GlobalValue::ExternalLinkage; return false; 9983d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_private: Res = GlobalValue::PrivateLinkage; break; 9993d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_linker_private: Res = GlobalValue::LinkerPrivateLinkage; break; 10005e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case lltok::kw_linker_private_weak: 10015e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling Res = GlobalValue::LinkerPrivateWeakLinkage; 10025e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling break; 100355ae515f9db484125a23429d4906c5edaf9f10d2Bill Wendling case lltok::kw_linker_private_weak_def_auto: 100455ae515f9db484125a23429d4906c5edaf9f10d2Bill Wendling Res = GlobalValue::LinkerPrivateWeakDefAutoLinkage; 100555ae515f9db484125a23429d4906c5edaf9f10d2Bill Wendling break; 10063d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_internal: Res = GlobalValue::InternalLinkage; break; 10073d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_weak: Res = GlobalValue::WeakAnyLinkage; break; 10083d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_weak_odr: Res = GlobalValue::WeakODRLinkage; break; 10093d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_linkonce: Res = GlobalValue::LinkOnceAnyLinkage; break; 10103d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_linkonce_odr: Res = GlobalValue::LinkOnceODRLinkage; break; 1011266c7bbbbcc4b326dea82e577de1a415d6acc23eChris Lattner case lltok::kw_available_externally: 1012266c7bbbbcc4b326dea82e577de1a415d6acc23eChris Lattner Res = GlobalValue::AvailableExternallyLinkage; 1013266c7bbbbcc4b326dea82e577de1a415d6acc23eChris Lattner break; 10143d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_appending: Res = GlobalValue::AppendingLinkage; break; 10153d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_dllexport: Res = GlobalValue::DLLExportLinkage; break; 10163d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_common: Res = GlobalValue::CommonLinkage; break; 10173d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_dllimport: Res = GlobalValue::DLLImportLinkage; break; 10183d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_extern_weak: Res = GlobalValue::ExternalWeakLinkage; break; 10193d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case lltok::kw_external: Res = GlobalValue::ExternalLinkage; break; 1020df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1021df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 1022df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner HasLinkage = true; 1023df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1024df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1025df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1026df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseOptionalVisibility 1027df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= /*empty*/ 1028df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'default' 1029df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'hidden' 1030df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'protected' 1031a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar/// 1032df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseOptionalVisibility(unsigned &Res) { 1033df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Lex.getKind()) { 1034df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner default: Res = GlobalValue::DefaultVisibility; return false; 1035df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_default: Res = GlobalValue::DefaultVisibility; break; 1036df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_hidden: Res = GlobalValue::HiddenVisibility; break; 1037df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_protected: Res = GlobalValue::ProtectedVisibility; break; 1038df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1039df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 1040df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1041df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1042df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1043df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseOptionalCallingConv 1044df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= /*empty*/ 1045df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'ccc' 1046df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'fastcc' 1047df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'coldcc' 1048df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'x86_stdcallcc' 1049df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'x86_fastcallcc' 1050ded05e34b65dc42998e9db6ca1abd513e7a9d120Anton Korobeynikov/// ::= 'x86_thiscallcc' 1051385f5a99ecc7fee48a7539bc63d3e1d3b5089c0dAnton Korobeynikov/// ::= 'arm_apcscc' 1052385f5a99ecc7fee48a7539bc63d3e1d3b5089c0dAnton Korobeynikov/// ::= 'arm_aapcscc' 1053385f5a99ecc7fee48a7539bc63d3e1d3b5089c0dAnton Korobeynikov/// ::= 'arm_aapcs_vfpcc' 1054211a14e476abc9b864ab6a5d5e0bbb86d288b650Anton Korobeynikov/// ::= 'msp430_intrcc' 1055f9930da2ef72350c6c805af09e754e4e6e13d47bChe-Liang Chiou/// ::= 'ptx_kernel' 1056f9930da2ef72350c6c805af09e754e4e6e13d47bChe-Liang Chiou/// ::= 'ptx_device' 1057df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'cc' UINT 1058385f5a99ecc7fee48a7539bc63d3e1d3b5089c0dAnton Korobeynikov/// 105965c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patelbool LLParser::ParseOptionalCallingConv(CallingConv::ID &CC) { 1060df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Lex.getKind()) { 1061df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner default: CC = CallingConv::C; return false; 1062df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ccc: CC = CallingConv::C; break; 1063df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_fastcc: CC = CallingConv::Fast; break; 1064df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_coldcc: CC = CallingConv::Cold; break; 1065df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_x86_stdcallcc: CC = CallingConv::X86_StdCall; break; 1066df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_x86_fastcallcc: CC = CallingConv::X86_FastCall; break; 1067ded05e34b65dc42998e9db6ca1abd513e7a9d120Anton Korobeynikov case lltok::kw_x86_thiscallcc: CC = CallingConv::X86_ThisCall; break; 1068385f5a99ecc7fee48a7539bc63d3e1d3b5089c0dAnton Korobeynikov case lltok::kw_arm_apcscc: CC = CallingConv::ARM_APCS; break; 1069385f5a99ecc7fee48a7539bc63d3e1d3b5089c0dAnton Korobeynikov case lltok::kw_arm_aapcscc: CC = CallingConv::ARM_AAPCS; break; 1070385f5a99ecc7fee48a7539bc63d3e1d3b5089c0dAnton Korobeynikov case lltok::kw_arm_aapcs_vfpcc:CC = CallingConv::ARM_AAPCS_VFP; break; 1071211a14e476abc9b864ab6a5d5e0bbb86d288b650Anton Korobeynikov case lltok::kw_msp430_intrcc: CC = CallingConv::MSP430_INTR; break; 1072f9930da2ef72350c6c805af09e754e4e6e13d47bChe-Liang Chiou case lltok::kw_ptx_kernel: CC = CallingConv::PTX_Kernel; break; 1073f9930da2ef72350c6c805af09e754e4e6e13d47bChe-Liang Chiou case lltok::kw_ptx_device: CC = CallingConv::PTX_Device; break; 107465c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel case lltok::kw_cc: { 107565c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel unsigned ArbitraryCC; 107665c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel Lex.Lex(); 107765c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel if (ParseUInt32(ArbitraryCC)) { 107865c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel return true; 107965c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel } else 108065c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel CC = static_cast<CallingConv::ID>(ArbitraryCC); 108165c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel return false; 108265c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel } 108365c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel break; 1084df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1085a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1086df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 1087df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1088df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1089df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1090b8c4686a46da2832ff4502136f16f71f789be078Chris Lattner/// ParseInstructionMetadata 10913f3a0f6b498e80ffaeb83f03c8697e5d54fd9337Chris Lattner/// ::= !dbg !42 (',' !dbg !57)* 10929d072f51ebf61edda9c31f831c2642d110170d13Dan Gohmanbool LLParser::ParseInstructionMetadata(Instruction *Inst, 10939d072f51ebf61edda9c31f831c2642d110170d13Dan Gohman PerFunctionState *PFS) { 1094b8c4686a46da2832ff4502136f16f71f789be078Chris Lattner do { 1095b8c4686a46da2832ff4502136f16f71f789be078Chris Lattner if (Lex.getKind() != lltok::MetadataVar) 1096b8c4686a46da2832ff4502136f16f71f789be078Chris Lattner return TokError("expected metadata after comma"); 10970475c9170e9621292a48c688c3976031be5650bbDevang Patel 10983f3a0f6b498e80ffaeb83f03c8697e5d54fd9337Chris Lattner std::string Name = Lex.getStrVal(); 1099309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman unsigned MDK = M->getMDKindID(Name.c_str()); 11003f3a0f6b498e80ffaeb83f03c8697e5d54fd9337Chris Lattner Lex.Lex(); 110152e2031d4a5d76ff37458015a086285dfaceb6d2Chris Lattner 1102442ffa1c5688f32b275f7657b5ee3646bfe8ffa3Chris Lattner MDNode *Node; 1103449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner SMLoc Loc = Lex.getLoc(); 1104309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman 1105309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman if (ParseToken(lltok::exclaim, "expected '!' here")) 1106e434d277ca5183eeb6f881000732dcf4c8edd52eChris Lattner return true; 1107a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 11086826114d6e10725d122dca9352dc2d99a0f693e9Dan Gohman // This code is similar to that of ParseMetadataValue, however it needs to 11096826114d6e10725d122dca9352dc2d99a0f693e9Dan Gohman // have special-case code for a forward reference; see the comments on 11106826114d6e10725d122dca9352dc2d99a0f693e9Dan Gohman // ForwardRefInstMetadata for details. Also, MDStrings are not supported 11116826114d6e10725d122dca9352dc2d99a0f693e9Dan Gohman // at the top level here. 1112309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman if (Lex.getKind() == lltok::lbrace) { 1113309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman ValID ID; 1114309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman if (ParseMetadataListValue(ID, PFS)) 1115309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman return true; 1116309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman assert(ID.Kind == ValID::t_MDNode); 1117309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman Inst->setMetadata(MDK, ID.MDNodeVal); 1118449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner } else { 1119c6877b4ee11e1937b185114680a983facf9a29f8Nick Lewycky unsigned NodeID = 0; 1120309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman if (ParseMDNodeID(Node, NodeID)) 1121309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman return true; 1122309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman if (Node) { 1123309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman // If we got the node, add it to the instruction. 1124309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman Inst->setMetadata(MDK, Node); 1125309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman } else { 1126309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman MDRef R = { Loc, MDK, NodeID }; 1127309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman // Otherwise, remember that this should be resolved later. 1128309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman ForwardRefInstMetadata[Inst].push_back(R); 1129309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman } 1130449c3103c5d8a3105ac1a46187ac1c7e1bdc0ba2Chris Lattner } 11313f3a0f6b498e80ffaeb83f03c8697e5d54fd9337Chris Lattner 11323f3a0f6b498e80ffaeb83f03c8697e5d54fd9337Chris Lattner // If this is the end of the list, we're done. 1133b8c4686a46da2832ff4502136f16f71f789be078Chris Lattner } while (EatIfPresent(lltok::comma)); 1134b8c4686a46da2832ff4502136f16f71f789be078Chris Lattner return false; 1135f633a065de959b32892c51d741d4db010c5d25b1Devang Patel} 1136f633a065de959b32892c51d741d4db010c5d25b1Devang Patel 1137df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseOptionalAlignment 1138df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= /* empty */ 1139df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'align' 4 1140df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseOptionalAlignment(unsigned &Alignment) { 1141df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Alignment = 0; 11423ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (!EatIfPresent(lltok::kw_align)) 11433ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return false; 11443fbb3ab14d86f752a933b5af4e6728c5e57e1155Chris Lattner LocTy AlignLoc = Lex.getLoc(); 11453fbb3ab14d86f752a933b5af4e6728c5e57e1155Chris Lattner if (ParseUInt32(Alignment)) return true; 11463fbb3ab14d86f752a933b5af4e6728c5e57e1155Chris Lattner if (!isPowerOf2_32(Alignment)) 11473fbb3ab14d86f752a933b5af4e6728c5e57e1155Chris Lattner return Error(AlignLoc, "alignment is not a power of two"); 1148e16829b401409b398c9de9847c1d12eb931f7d63Dan Gohman if (Alignment > Value::MaximumAlignment) 1149138aa2a82bc6de611f28e51332fb0a30262a58e3Dan Gohman return Error(AlignLoc, "huge alignments are not supported yet"); 11503fbb3ab14d86f752a933b5af4e6728c5e57e1155Chris Lattner return false; 1151df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1152df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1153c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner/// ParseOptionalCommaAlign 1154c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner/// ::= 1155c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner/// ::= ',' align 4 1156c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner/// 1157c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner/// This returns with AteExtraComma set to true if it ate an excess comma at the 1158c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner/// end. 1159c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattnerbool LLParser::ParseOptionalCommaAlign(unsigned &Alignment, 1160c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner bool &AteExtraComma) { 1161c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner AteExtraComma = false; 1162c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner while (EatIfPresent(lltok::comma)) { 1163c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner // Metadata at the end is an early exit. 11641d92831759620a2e5ce4f5a3088c0a1a77a48c8fChris Lattner if (Lex.getKind() == lltok::MetadataVar) { 1165c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner AteExtraComma = true; 1166c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner return false; 1167c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner } 1168c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner 1169093eed15ae690f26f3f23731eed9d34da978d5feChris Lattner if (Lex.getKind() != lltok::kw_align) 1170093eed15ae690f26f3f23731eed9d34da978d5feChris Lattner return Error(Lex.getLoc(), "expected metadata or 'align'"); 1171bf9fc53f46d5badab10ec79e1e442830206f6598Duncan Sands 1172093eed15ae690f26f3f23731eed9d34da978d5feChris Lattner if (ParseOptionalAlignment(Alignment)) return true; 1173c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner } 1174a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1175f633a065de959b32892c51d741d4db010c5d25b1Devang Patel return false; 1176df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1177df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 11781e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis/// ParseOptionalStackAlignment 11791e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis/// ::= /* empty */ 11801e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis/// ::= 'alignstack' '(' 4 ')' 11811e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davisbool LLParser::ParseOptionalStackAlignment(unsigned &Alignment) { 11821e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis Alignment = 0; 11831e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis if (!EatIfPresent(lltok::kw_alignstack)) 11841e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis return false; 11851e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis LocTy ParenLoc = Lex.getLoc(); 11861e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis if (!EatIfPresent(lltok::lparen)) 11871e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis return Error(ParenLoc, "expected '('"); 11881e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis LocTy AlignLoc = Lex.getLoc(); 11891e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis if (ParseUInt32(Alignment)) return true; 11901e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis ParenLoc = Lex.getLoc(); 11911e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis if (!EatIfPresent(lltok::rparen)) 11921e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis return Error(ParenLoc, "expected ')'"); 11931e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis if (!isPowerOf2_32(Alignment)) 11941e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis return Error(AlignLoc, "stack alignment is not a power of two"); 11951e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis return false; 11961e063d14df0f182626ebdd7ac7f32405aa754e03Charles Davis} 1197f633a065de959b32892c51d741d4db010c5d25b1Devang Patel 1198628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner/// ParseIndexList - This parses the index list for an insert/extractvalue 1199628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner/// instruction. This sets AteExtraComma in the case where we eat an extra 1200628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner/// comma at the end of the line and find that it is followed by metadata. 1201628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner/// Clients that don't allow metadata can call the version of this function that 1202628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner/// only takes one argument. 1203628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner/// 1204df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseIndexList 1205df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= (',' uint32)+ 1206628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner/// 1207628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattnerbool LLParser::ParseIndexList(SmallVectorImpl<unsigned> &Indices, 1208628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner bool &AteExtraComma) { 1209628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner AteExtraComma = false; 1210628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner 1211df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Lex.getKind() != lltok::comma) 1212df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("expected ',' as start of index list"); 1213a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 12143ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner while (EatIfPresent(lltok::comma)) { 1215628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner if (Lex.getKind() == lltok::MetadataVar) { 1216628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner AteExtraComma = true; 1217628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner return false; 1218628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner } 121928815c4b64f3c29934ec3d9c48c91d8c1bd97682Nick Lewycky unsigned Idx = 0; 12203ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseUInt32(Idx)) return true; 1221df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Indices.push_back(Idx); 1222df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1223a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1224df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1225df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1226df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1227df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 1228df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// Type Parsing. 1229df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 1230df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1231df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseType - Parse and resolve a full type. 1232a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattnerbool LLParser::ParseType(PATypeHolder &Result, bool AllowVoid) { 1233a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner LocTy TypeLoc = Lex.getLoc(); 1234df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeRec(Result)) return true; 1235a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1236df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Verify no unresolved uprefs. 1237df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!UpRefs.empty()) 1238df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(UpRefs.back().Loc, "invalid unresolved type up reference"); 1239a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1240cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (!AllowVoid && Result.get()->isVoidTy()) 1241a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner return Error(TypeLoc, "void type only allowed for function results"); 1242a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1243df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1244df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1245df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1246df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// HandleUpRefs - Every time we finish a new layer of types, this function is 1247df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// called. It loops through the UpRefs vector, which is a list of the 1248df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// currently active types. For each type, if the up-reference is contained in 1249df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// the newly completed type, we decrement the level count. When the level 1250df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// count reaches zero, the up-referenced type is the type that is passed in: 1251df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// thus we can complete the cycle. 1252df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// 1253df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris LattnerPATypeHolder LLParser::HandleUpRefs(const Type *ty) { 1254df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If Ty isn't abstract, or if there are no up-references in it, then there is 1255df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // nothing to resolve here. 1256df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ty->isAbstract() || UpRefs.empty()) return ty; 1257a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1258df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner PATypeHolder Ty(ty); 1259df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#if 0 12600cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner dbgs() << "Type '" << *Ty 1261df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner << "' newly formed. Resolving upreferences.\n" 1262df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner << UpRefs.size() << " upreferences active!\n"; 1263df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#endif 1264a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1265df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If we find any resolvable upreferences (i.e., those whose NestingLevel goes 1266df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // to zero), we resolve them all together before we resolve them to Ty. At 1267df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // the end of the loop, if there is anything to resolve to Ty, it will be in 1268df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // this variable. 1269df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner OpaqueType *TypeToResolve = 0; 1270a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1271df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 0; i != UpRefs.size(); ++i) { 1272df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Determine if 'Ty' directly contains this up-references 'LastContainedTy'. 1273df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner bool ContainsType = 1274df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::find(Ty->subtype_begin(), Ty->subtype_end(), 1275df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner UpRefs[i].LastContainedTy) != Ty->subtype_end(); 1276a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1277df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#if 0 12780cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner dbgs() << " UR#" << i << " - TypeContains(" << *Ty << ", " 12790cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner << *UpRefs[i].LastContainedTy << ") = " 1280df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner << (ContainsType ? "true" : "false") 1281df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner << " level=" << UpRefs[i].NestingLevel << "\n"; 1282df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#endif 1283df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ContainsType) 1284df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner continue; 1285a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1286df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Decrement level of upreference 1287df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Level = --UpRefs[i].NestingLevel; 1288df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner UpRefs[i].LastContainedTy = Ty; 1289a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1290df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If the Up-reference has a non-zero level, it shouldn't be resolved yet. 1291df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Level != 0) 1292df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner continue; 1293a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1294df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#if 0 12950e28d76696dce146266cab547033dd895ffd0323David Greene dbgs() << " * Resolving upreference for " << UpRefs[i].UpRefTy << "\n"; 1296df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner#endif 1297df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!TypeToResolve) 1298df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner TypeToResolve = UpRefs[i].UpRefTy; 1299df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner else 1300df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve); 1301df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list. 1302df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner --i; // Do not skip the next element. 1303df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1304a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1305df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (TypeToResolve) 1306df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner TypeToResolve->refineAbstractTypeTo(Ty); 1307a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1308df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Ty; 1309df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1310df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1311df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1312df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseTypeRec - The recursive function used to process the internal 1313df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// implementation details of types. 1314df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseTypeRec(PATypeHolder &Result) { 1315df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Lex.getKind()) { 1316df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner default: 1317df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("expected type"); 1318df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::Type: 1319df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // TypeRec ::= 'float' | 'void' (etc) 1320df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Result = Lex.getTyVal(); 1321a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar Lex.Lex(); 1322df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1323df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_opaque: 1324df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // TypeRec ::= 'opaque' 13250e275dc53880a7f14f8b8c83cc6e0290a215492dOwen Anderson Result = OpaqueType::get(Context); 1326df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 1327df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1328df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::lbrace: 1329df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // TypeRec ::= '{' ... '}' 1330df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseStructType(Result, false)) 1331df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 1332df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1333df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::lsquare: 1334df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // TypeRec ::= '[' ... ']' 1335df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); // eat the lsquare. 1336df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseArrayVectorType(Result, false)) 1337df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 1338df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1339df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::less: // Either vector or packed struct. 1340df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // TypeRec ::= '<' ... '>' 13413ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner Lex.Lex(); 13423ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (Lex.getKind() == lltok::lbrace) { 13433ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseStructType(Result, true) || 13443ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseToken(lltok::greater, "expected '>' at end of packed struct")) 1345df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 1346df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else if (ParseArrayVectorType(Result, true)) 1347df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 1348df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1349df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::LocalVar: 1350df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // TypeRec ::= %foo 1351df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (const Type *T = M->getTypeByName(Lex.getStrVal())) { 1352df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Result = T; 1353df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else { 13540e275dc53880a7f14f8b8c83cc6e0290a215492dOwen Anderson Result = OpaqueType::get(Context); 1355df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefTypes.insert(std::make_pair(Lex.getStrVal(), 1356df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::make_pair(Result, 1357df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.getLoc()))); 1358df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner M->addTypeName(Lex.getStrVal(), Result.get()); 1359df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1360df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 1361df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1362a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1363df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::LocalVarID: 1364df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // TypeRec ::= %4 1365df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Lex.getUIntVal() < NumberedTypes.size()) 1366df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Result = NumberedTypes[Lex.getUIntVal()]; 1367df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner else { 1368df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<unsigned, std::pair<PATypeHolder, LocTy> >::iterator 1369df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner I = ForwardRefTypeIDs.find(Lex.getUIntVal()); 1370df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I != ForwardRefTypeIDs.end()) 1371df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Result = I->second.first; 1372df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner else { 13730e275dc53880a7f14f8b8c83cc6e0290a215492dOwen Anderson Result = OpaqueType::get(Context); 1374df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefTypeIDs.insert(std::make_pair(Lex.getUIntVal(), 1375df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::make_pair(Result, 1376df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.getLoc()))); 1377df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1378df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1379df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 1380df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1381df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::backslash: { 1382df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // TypeRec ::= '\' 4 1383df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 13843ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner unsigned Val; 13853ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseUInt32(Val)) return true; 13860e275dc53880a7f14f8b8c83cc6e0290a215492dOwen Anderson OpaqueType *OT = OpaqueType::get(Context); //Use temporary placeholder. 1387df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner UpRefs.push_back(UpRefRecord(Lex.getLoc(), Val, OT)); 1388df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Result = OT; 1389df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1390df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1391df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1392a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1393a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar // Parse the type suffixes. 1394df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner while (1) { 1395df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Lex.getKind()) { 1396df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // End of type. 1397a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar default: return false; 1398df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1399df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // TypeRec ::= TypeRec '*' 1400df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::star: 1401cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Result.get()->isLabelTy()) 1402df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("basic block pointers are invalid"); 1403cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Result.get()->isVoidTy()) 1404b9070d3f6309929e47503e2790a368592b4bd201Dan Gohman return TokError("pointers to void are invalid; use i8* instead"); 1405a5f54a06b09acf5c4ed3571039f262128226145bNick Lewycky if (!PointerType::isValidElementType(Result.get())) 1406a5f54a06b09acf5c4ed3571039f262128226145bNick Lewycky return TokError("pointer to this type is invalid"); 1407debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson Result = HandleUpRefs(PointerType::getUnqual(Result.get())); 1408df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 1409df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1410df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1411df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // TypeRec ::= TypeRec 'addrspace' '(' uint32 ')' '*' 1412df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_addrspace: { 1413cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Result.get()->isLabelTy()) 1414df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("basic block pointers are invalid"); 1415cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Result.get()->isVoidTy()) 1416b9070d3f6309929e47503e2790a368592b4bd201Dan Gohman return TokError("pointers to void are invalid; use i8* instead"); 1417a5f54a06b09acf5c4ed3571039f262128226145bNick Lewycky if (!PointerType::isValidElementType(Result.get())) 1418a5f54a06b09acf5c4ed3571039f262128226145bNick Lewycky return TokError("pointer to this type is invalid"); 1419df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned AddrSpace; 1420df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseOptionalAddrSpace(AddrSpace) || 1421df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::star, "expected '*' in address space")) 1422df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 1423df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1424debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson Result = HandleUpRefs(PointerType::get(Result.get(), AddrSpace)); 1425df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1426df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1427a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1428df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner /// Types '(' ArgTypeListI ')' OptFuncAttrs 1429df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::lparen: 1430df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseFunctionType(Result)) 1431df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 1432df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1433df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1434df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1435df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1436df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1437df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseParameterList 1438df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= '(' ')' 1439df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= '(' Arg (',' Arg)* ')' 1440df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// Arg 1441df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= Type OptionalAttributes Value OptionalAttributes 1442df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseParameterList(SmallVectorImpl<ParamInfo> &ArgList, 1443df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner PerFunctionState &PFS) { 1444df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::lparen, "expected '(' in call")) 1445df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 1446a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1447df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner while (Lex.getKind() != lltok::rparen) { 1448df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If this isn't the first argument, we need a comma. 1449df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ArgList.empty() && 1450df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' in argument list")) 1451df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 1452a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1453df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Parse the argument. 1454df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy ArgLoc; 14551d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder ArgTy(Type::getVoidTy(Context)); 14561971556cc271710b683bc3ca8327c903791c910fVictor Hernandez unsigned ArgAttrs1 = Attribute::None; 14571971556cc271710b683bc3ca8327c903791c910fVictor Hernandez unsigned ArgAttrs2 = Attribute::None; 1458df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *V; 14591971556cc271710b683bc3ca8327c903791c910fVictor Hernandez if (ParseType(ArgTy, ArgLoc)) 1460df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 14611971556cc271710b683bc3ca8327c903791c910fVictor Hernandez 1462287881d51086c4c5b38d109142f97442c9283374Chris Lattner // Otherwise, handle normal operands. 1463f3a789d931de6b5be729c33ff476fb20f0badbb1Chris Lattner if (ParseOptionalAttrs(ArgAttrs1, 0) || ParseValue(ArgTy, V, PFS)) 1464287881d51086c4c5b38d109142f97442c9283374Chris Lattner return true; 1465df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ArgList.push_back(ParamInfo(ArgLoc, V, ArgAttrs1|ArgAttrs2)); 1466df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1467df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1468df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); // Lex the ')'. 1469df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1470df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1471df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1472df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1473df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1474dfd19ddcfa7568d2118fbc3c6da612295200c31cChris Lattner/// ParseArgumentList - Parse the argument list for a function type or function 1475dfd19ddcfa7568d2118fbc3c6da612295200c31cChris Lattner/// prototype. If 'inType' is true then we are parsing a FunctionType. 1476df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= '(' ArgTypeListI ')' 1477df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ArgTypeListI 1478df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= /*empty*/ 1479df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= '...' 1480df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= ArgTypeList ',' '...' 1481df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= ArgType (',' ArgType)* 1482dfd19ddcfa7568d2118fbc3c6da612295200c31cChris Lattner/// 1483df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseArgumentList(std::vector<ArgInfo> &ArgList, 1484dfd19ddcfa7568d2118fbc3c6da612295200c31cChris Lattner bool &isVarArg, bool inType) { 1485df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner isVarArg = false; 1486df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner assert(Lex.getKind() == lltok::lparen); 1487df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); // eat the (. 1488a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1489df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Lex.getKind() == lltok::rparen) { 1490df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // empty 1491df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else if (Lex.getKind() == lltok::dotdotdot) { 1492df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner isVarArg = true; 1493df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 1494df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else { 1495df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy TypeLoc = Lex.getLoc(); 14961d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder ArgTy(Type::getVoidTy(Context)); 1497df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Attrs; 1498df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::string Name; 1499a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1500dfd19ddcfa7568d2118fbc3c6da612295200c31cChris Lattner // If we're parsing a type, use ParseTypeRec, because we allow recursive 1501dfd19ddcfa7568d2118fbc3c6da612295200c31cChris Lattner // types (such as a function returning a pointer to itself). If parsing a 1502dfd19ddcfa7568d2118fbc3c6da612295200c31cChris Lattner // function prototype, we require fully resolved types. 1503dfd19ddcfa7568d2118fbc3c6da612295200c31cChris Lattner if ((inType ? ParseTypeRec(ArgTy) : ParseType(ArgTy)) || 15043ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseOptionalAttrs(Attrs, 0)) return true; 1505a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1506cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (ArgTy->isVoidTy()) 1507a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner return Error(TypeLoc, "argument can not have void type"); 1508a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 15097a1b9bdd2b837b15c9213cdaf89cacc977e4600eChris Lattner if (Lex.getKind() == lltok::LocalVar) { 1510df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Name = Lex.getStrVal(); 1511df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 1512df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 15133ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner 1514a5f54a06b09acf5c4ed3571039f262128226145bNick Lewycky if (!FunctionType::isValidArgumentType(ArgTy)) 15153ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return Error(TypeLoc, "invalid type for function argument"); 1516a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1517df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ArgList.push_back(ArgInfo(TypeLoc, ArgTy, Attrs, Name)); 1518a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 15193ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner while (EatIfPresent(lltok::comma)) { 1520df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Handle ... at end of arg list. 15213ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (EatIfPresent(lltok::dotdotdot)) { 1522df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner isVarArg = true; 1523df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1524df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1525a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1526df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Otherwise must be an argument type. 1527df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner TypeLoc = Lex.getLoc(); 1528a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner if ((inType ? ParseTypeRec(ArgTy) : ParseType(ArgTy)) || 15293ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseOptionalAttrs(Attrs, 0)) return true; 15303ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner 1531cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (ArgTy->isVoidTy()) 1532a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner return Error(TypeLoc, "argument can not have void type"); 1533a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner 15347a1b9bdd2b837b15c9213cdaf89cacc977e4600eChris Lattner if (Lex.getKind() == lltok::LocalVar) { 1535df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Name = Lex.getStrVal(); 1536df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 1537df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else { 1538df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Name = ""; 1539df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 15403ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner 154147c5188789bc40671504ed1fa3a44765cefba44fDuncan Sands if (!ArgTy->isFirstClassType() && !ArgTy->isOpaqueTy()) 15423ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return Error(TypeLoc, "invalid type for function argument"); 1543a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1544df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ArgList.push_back(ArgInfo(TypeLoc, ArgTy, Attrs, Name)); 1545df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1546df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1547a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 15483ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return ParseToken(lltok::rparen, "expected ')' at end of argument list"); 1549df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1550a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1551df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseFunctionType 1552df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= Type ArgumentList OptionalAttrs 1553df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseFunctionType(PATypeHolder &Result) { 1554df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner assert(Lex.getKind() == lltok::lparen); 1555df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1556d77d04c323f856b07c6e46450e7578dd09c0165fChris Lattner if (!FunctionType::isValidReturnType(Result)) 1557d77d04c323f856b07c6e46450e7578dd09c0165fChris Lattner return TokError("invalid function return type"); 1558a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1559df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::vector<ArgInfo> ArgList; 1560df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner bool isVarArg; 1561a16546a70bc8cdf609e9e10beb20925e54a88d77Chris Lattner if (ParseArgumentList(ArgList, isVarArg, true)) 1562df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 1563a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1564df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Reject names on the arguments lists. 1565df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { 1566df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ArgList[i].Name.empty()) 1567df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ArgList[i].Loc, "argument name invalid in function type"); 1568a16546a70bc8cdf609e9e10beb20925e54a88d77Chris Lattner if (ArgList[i].Attrs != 0) 1569a16546a70bc8cdf609e9e10beb20925e54a88d77Chris Lattner return Error(ArgList[i].Loc, 1570a16546a70bc8cdf609e9e10beb20925e54a88d77Chris Lattner "argument attributes invalid in function type"); 1571df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1572a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1573df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::vector<const Type*> ArgListTy; 1574df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 0, e = ArgList.size(); i != e; ++i) 1575df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ArgListTy.push_back(ArgList[i].Type); 1576a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1577debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson Result = HandleUpRefs(FunctionType::get(Result.get(), 1578fba933c823a2862067e0696bd5032ab18185bd77Owen Anderson ArgListTy, isVarArg)); 1579df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1580df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1581df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1582df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseStructType: Handles packed and unpacked types. </> parsed elsewhere. 1583df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// TypeRec 1584df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= '{' '}' 1585df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= '{' TypeRec (',' TypeRec)* '}' 1586df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= '<' '{' '}' '>' 1587df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= '<' '{' TypeRec (',' TypeRec)* '}' '>' 1588df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseStructType(PATypeHolder &Result, bool Packed) { 1589df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner assert(Lex.getKind() == lltok::lbrace); 1590df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); // Consume the '{' 1591a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 15923ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (EatIfPresent(lltok::rbrace)) { 1593d7f2a6cb3fbc012763adb42fd967f6fefbb22a37Owen Anderson Result = StructType::get(Context, Packed); 1594df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1595df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1596df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1597df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::vector<PATypeHolder> ParamsList; 1598a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner LocTy EltTyLoc = Lex.getLoc(); 1599df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeRec(Result)) return true; 1600df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParamsList.push_back(Result); 1601a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1602cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Result->isVoidTy()) 1603a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner return Error(EltTyLoc, "struct element can not have void type"); 1604a5f54a06b09acf5c4ed3571039f262128226145bNick Lewycky if (!StructType::isValidElementType(Result)) 1605a5f54a06b09acf5c4ed3571039f262128226145bNick Lewycky return Error(EltTyLoc, "invalid element type for struct"); 1606a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 16073ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner while (EatIfPresent(lltok::comma)) { 1608a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner EltTyLoc = Lex.getLoc(); 1609df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeRec(Result)) return true; 1610a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1611cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Result->isVoidTy()) 1612a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner return Error(EltTyLoc, "struct element can not have void type"); 1613a5f54a06b09acf5c4ed3571039f262128226145bNick Lewycky if (!StructType::isValidElementType(Result)) 1614a5f54a06b09acf5c4ed3571039f262128226145bNick Lewycky return Error(EltTyLoc, "invalid element type for struct"); 1615a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1616df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParamsList.push_back(Result); 1617df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1618a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 16193ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseToken(lltok::rbrace, "expected '}' at end of struct")) 16203ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return true; 1621a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1622df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::vector<const Type*> ParamsListTy; 1623df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 0, e = ParamsList.size(); i != e; ++i) 1624df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParamsListTy.push_back(ParamsList[i].get()); 1625d7f2a6cb3fbc012763adb42fd967f6fefbb22a37Owen Anderson Result = HandleUpRefs(StructType::get(Context, ParamsListTy, Packed)); 1626df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1627df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1628df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1629df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseArrayVectorType - Parse an array or vector type, assuming the first 1630df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// token has already been consumed. 1631a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar/// TypeRec 1632df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= '[' APSINTVAL 'x' Types ']' 1633df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= '<' APSINTVAL 'x' Types '>' 1634df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseArrayVectorType(PATypeHolder &Result, bool isVector) { 1635df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned() || 1636df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.getAPSIntVal().getBitWidth() > 64) 1637df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("expected number in address space"); 1638a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1639df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy SizeLoc = Lex.getLoc(); 1640df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner uint64_t Size = Lex.getAPSIntVal().getZExtValue(); 16413ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner Lex.Lex(); 1642a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 16433ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseToken(lltok::kw_x, "expected 'x' after element count")) 16443ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return true; 1645df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1646df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy TypeLoc = Lex.getLoc(); 16471d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder EltTy(Type::getVoidTy(Context)); 1648df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeRec(EltTy)) return true; 1649a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1650cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (EltTy->isVoidTy()) 1651a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner return Error(TypeLoc, "array and vector element type cannot be void"); 1652a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner 16533ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseToken(isVector ? lltok::greater : lltok::rsquare, 16543ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner "expected end of sequential type")) 16553ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return true; 1656a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1657df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (isVector) { 1658452e2627dc1de4fb5a2b1c9ac999f1b3396f82c7Chris Lattner if (Size == 0) 1659452e2627dc1de4fb5a2b1c9ac999f1b3396f82c7Chris Lattner return Error(SizeLoc, "zero element vector is illegal"); 1660df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if ((unsigned)Size != Size) 1661df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(SizeLoc, "size too large for vector"); 1662a5f54a06b09acf5c4ed3571039f262128226145bNick Lewycky if (!VectorType::isValidElementType(EltTy)) 1663df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(TypeLoc, "vector element type must be fp or integer"); 1664debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson Result = VectorType::get(EltTy, unsigned(Size)); 1665df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else { 1666a5f54a06b09acf5c4ed3571039f262128226145bNick Lewycky if (!ArrayType::isValidElementType(EltTy)) 1667df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(TypeLoc, "invalid array element type"); 1668debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson Result = HandleUpRefs(ArrayType::get(EltTy, Size)); 1669df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1670df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1671df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1672df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1673df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 1674df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// Function Semantic Analysis. 1675df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 1676df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 167709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris LattnerLLParser::PerFunctionState::PerFunctionState(LLParser &p, Function &f, 167809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner int functionNumber) 167909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner : P(p), F(f), FunctionNumber(functionNumber) { 1680df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1681df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Insert unnamed arguments into the NumberedVals list. 1682df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (Function::arg_iterator AI = F.arg_begin(), E = F.arg_end(); 1683df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner AI != E; ++AI) 1684df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!AI->hasName()) 1685df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner NumberedVals.push_back(AI); 1686df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1687df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1688df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris LattnerLLParser::PerFunctionState::~PerFunctionState() { 1689df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If there were any forward referenced non-basicblock values, delete them. 1690df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (std::map<std::string, std::pair<Value*, LocTy> >::iterator 1691df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner I = ForwardRefVals.begin(), E = ForwardRefVals.end(); I != E; ++I) 1692df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!isa<BasicBlock>(I->second.first)) { 1693b43eae745eb9a7c46fe76b0ed8053b782ca67536Owen Anderson I->second.first->replaceAllUsesWith( 16949e9a0d5fc26878e51a58a8b57900fcbf952c2691Owen Anderson UndefValue::get(I->second.first->getType())); 1695df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner delete I->second.first; 1696df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner I->second.first = 0; 1697df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1698a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1699df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (std::map<unsigned, std::pair<Value*, LocTy> >::iterator 1700df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner I = ForwardRefValIDs.begin(), E = ForwardRefValIDs.end(); I != E; ++I) 1701df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!isa<BasicBlock>(I->second.first)) { 1702b43eae745eb9a7c46fe76b0ed8053b782ca67536Owen Anderson I->second.first->replaceAllUsesWith( 17039e9a0d5fc26878e51a58a8b57900fcbf952c2691Owen Anderson UndefValue::get(I->second.first->getType())); 1704df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner delete I->second.first; 1705df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner I->second.first = 0; 1706df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1707df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1708df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 170909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattnerbool LLParser::PerFunctionState::FinishFunction() { 171009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner // Check to see if someone took the address of labels in this block. 171109d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner if (!P.ForwardRefBlockAddresses.empty()) { 171209d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner ValID FunctionID; 171309d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner if (!F.getName().empty()) { 171409d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner FunctionID.Kind = ValID::t_GlobalName; 171509d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner FunctionID.StrVal = F.getName(); 171609d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner } else { 171709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner FunctionID.Kind = ValID::t_GlobalID; 171809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner FunctionID.UIntVal = FunctionNumber; 171909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner } 172009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 172109d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner std::map<ValID, std::vector<std::pair<ValID, GlobalValue*> > >::iterator 172209d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner FRBAI = P.ForwardRefBlockAddresses.find(FunctionID); 172309d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner if (FRBAI != P.ForwardRefBlockAddresses.end()) { 172409d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner // Resolve all these references. 172509d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner if (P.ResolveForwardRefBlockAddresses(&F, FRBAI->second, this)) 172609d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner return true; 172709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 172809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner P.ForwardRefBlockAddresses.erase(FRBAI); 172909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner } 173009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner } 173109d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 1732df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ForwardRefVals.empty()) 1733df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return P.Error(ForwardRefVals.begin()->second.second, 1734df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "use of undefined value '%" + ForwardRefVals.begin()->first + 1735df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "'"); 1736df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ForwardRefValIDs.empty()) 1737df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return P.Error(ForwardRefValIDs.begin()->second.second, 1738df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "use of undefined value '%" + 1739d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer Twine(ForwardRefValIDs.begin()->first) + "'"); 1740df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1741df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1742df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1743df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1744df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// GetVal - Get a value with the specified name or ID, creating a 1745df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// forward reference record if needed. This can return null if the value 1746df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// exists but does not have the right type. 1747df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris LattnerValue *LLParser::PerFunctionState::GetVal(const std::string &Name, 1748df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner const Type *Ty, LocTy Loc) { 1749df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Look this name up in the normal function symbol table. 1750df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Val = F.getValueSymbolTable().lookup(Name); 1751a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1752df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If this is a forward reference for the value, see if we already created a 1753df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // forward ref record. 1754df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val == 0) { 1755df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<std::string, std::pair<Value*, LocTy> >::iterator 1756df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner I = ForwardRefVals.find(Name); 1757df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I != ForwardRefVals.end()) 1758df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Val = I->second.first; 1759df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1760a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1761df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If we have the value in the symbol table or fwd-ref table, return it. 1762df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val) { 1763df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val->getType() == Ty) return Val; 1764cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Ty->isLabelTy()) 1765df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner P.Error(Loc, "'%" + Name + "' is not a basic block"); 1766df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner else 1767df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner P.Error(Loc, "'%" + Name + "' defined with type '" + 17680cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(Val->getType()) + "'"); 1769df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return 0; 1770df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1771a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1772df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Don't make placeholders with invalid type. 177347c5188789bc40671504ed1fa3a44765cefba44fDuncan Sands if (!Ty->isFirstClassType() && !Ty->isOpaqueTy() && !Ty->isLabelTy()) { 1774df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner P.Error(Loc, "invalid use of a non-first-class type"); 1775df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return 0; 1776df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1777a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1778df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Otherwise, create a new forward reference for this value and remember it. 1779df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *FwdVal; 1780cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Ty->isLabelTy()) 17811d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson FwdVal = BasicBlock::Create(F.getContext(), Name, &F); 1782df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner else 1783df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FwdVal = new Argument(Ty, Name); 1784a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1785df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefVals[Name] = std::make_pair(FwdVal, Loc); 1786df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return FwdVal; 1787df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1788df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1789df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris LattnerValue *LLParser::PerFunctionState::GetVal(unsigned ID, const Type *Ty, 1790df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc) { 1791df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Look this name up in the normal function symbol table. 1792df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Val = ID < NumberedVals.size() ? NumberedVals[ID] : 0; 1793a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1794df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If this is a forward reference for the value, see if we already created a 1795df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // forward ref record. 1796df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val == 0) { 1797df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<unsigned, std::pair<Value*, LocTy> >::iterator 1798df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner I = ForwardRefValIDs.find(ID); 1799df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I != ForwardRefValIDs.end()) 1800df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Val = I->second.first; 1801df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1802a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1803df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If we have the value in the symbol table or fwd-ref table, return it. 1804df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val) { 1805df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val->getType() == Ty) return Val; 1806cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Ty->isLabelTy()) 1807d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer P.Error(Loc, "'%" + Twine(ID) + "' is not a basic block"); 1808df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner else 1809d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer P.Error(Loc, "'%" + Twine(ID) + "' defined with type '" + 18100cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(Val->getType()) + "'"); 1811df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return 0; 1812df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1813a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 181447c5188789bc40671504ed1fa3a44765cefba44fDuncan Sands if (!Ty->isFirstClassType() && !Ty->isOpaqueTy() && !Ty->isLabelTy()) { 1815df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner P.Error(Loc, "invalid use of a non-first-class type"); 1816df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return 0; 1817df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1818a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1819df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Otherwise, create a new forward reference for this value and remember it. 1820df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *FwdVal; 1821cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Ty->isLabelTy()) 18221d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson FwdVal = BasicBlock::Create(F.getContext(), "", &F); 1823df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner else 1824df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FwdVal = new Argument(Ty); 1825a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1826df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc); 1827df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return FwdVal; 1828df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1829df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1830df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// SetInstName - After an instruction is parsed and inserted into its 1831df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// basic block, this installs its name. 1832df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::PerFunctionState::SetInstName(int NameID, 1833df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner const std::string &NameStr, 1834df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy NameLoc, Instruction *Inst) { 1835df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If this instruction has void type, it cannot have a name or ID specified. 1836cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Inst->getType()->isVoidTy()) { 1837df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (NameID != -1 || !NameStr.empty()) 1838df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return P.Error(NameLoc, "instructions returning void cannot have a name"); 1839df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1840df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1841a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1842df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If this was a numbered instruction, verify that the instruction is the 1843df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // expected value and resolve any forward references. 1844df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (NameStr.empty()) { 1845df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If neither a name nor an ID was specified, just use the next ID. 1846df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (NameID == -1) 1847df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner NameID = NumberedVals.size(); 1848a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1849df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (unsigned(NameID) != NumberedVals.size()) 1850df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return P.Error(NameLoc, "instruction expected to be numbered '%" + 1851d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer Twine(NumberedVals.size()) + "'"); 1852a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1853df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<unsigned, std::pair<Value*, LocTy> >::iterator FI = 1854df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefValIDs.find(NameID); 1855df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FI != ForwardRefValIDs.end()) { 1856df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FI->second.first->getType() != Inst->getType()) 1857a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar return P.Error(NameLoc, "instruction forward referenced with type '" + 18580cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(FI->second.first->getType()) + "'"); 1859df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FI->second.first->replaceAllUsesWith(Inst); 18602b4f28e270c5091a7e70991adc3e36aff0c85b0eNuno Lopes delete FI->second.first; 1861df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefValIDs.erase(FI); 1862df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1863df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1864df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner NumberedVals.push_back(Inst); 1865df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1866df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1867df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1868df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Otherwise, the instruction had a name. Resolve forward refs and set it. 1869df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<std::string, std::pair<Value*, LocTy> >::iterator 1870df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FI = ForwardRefVals.find(NameStr); 1871df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FI != ForwardRefVals.end()) { 1872df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FI->second.first->getType() != Inst->getType()) 1873a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar return P.Error(NameLoc, "instruction forward referenced with type '" + 18740cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(FI->second.first->getType()) + "'"); 1875df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FI->second.first->replaceAllUsesWith(Inst); 1876531552aaa24218c1b2043cf56d719f3d940aeed4Nuno Lopes delete FI->second.first; 1877df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefVals.erase(FI); 1878df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1879a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1880df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Set the name on the instruction. 1881df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst->setName(NameStr); 1882a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1883af81235ef96a7a005b7fdfe5a64cce30df3d820dBenjamin Kramer if (Inst->getName() != NameStr) 1884a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar return P.Error(NameLoc, "multiple definition of local value named '" + 1885df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner NameStr + "'"); 1886df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1887df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1888df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1889df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// GetBB - Get a basic block with the specified name or ID, creating a 1890df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// forward reference record if needed. 1891df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris LattnerBasicBlock *LLParser::PerFunctionState::GetBB(const std::string &Name, 1892df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc) { 18931d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson return cast_or_null<BasicBlock>(GetVal(Name, 18941d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson Type::getLabelTy(F.getContext()), Loc)); 1895df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1896df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1897df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris LattnerBasicBlock *LLParser::PerFunctionState::GetBB(unsigned ID, LocTy Loc) { 18981d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson return cast_or_null<BasicBlock>(GetVal(ID, 18991d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson Type::getLabelTy(F.getContext()), Loc)); 1900df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1901df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1902df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// DefineBB - Define the specified basic block, which is either named or 1903df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// unnamed. If there is an error, this returns null otherwise it returns 1904df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// the block being defined. 1905df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris LattnerBasicBlock *LLParser::PerFunctionState::DefineBB(const std::string &Name, 1906df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc) { 1907df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner BasicBlock *BB; 1908df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Name.empty()) 1909df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner BB = GetBB(NumberedVals.size(), Loc); 1910df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner else 1911df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner BB = GetBB(Name, Loc); 1912df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (BB == 0) return 0; // Already diagnosed error. 1913a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1914df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Move the block to the end of the function. Forward ref'd blocks are 1915df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // inserted wherever they happen to be referenced. 1916df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner F.getBasicBlockList().splice(F.end(), F.getBasicBlockList(), BB); 1917a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1918df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Remove the block from forward ref sets. 1919df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Name.empty()) { 1920df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefValIDs.erase(NumberedVals.size()); 1921df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner NumberedVals.push_back(BB); 1922df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else { 1923df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // BB forward references are already in the function symbol table. 1924df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefVals.erase(Name); 1925df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1926a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1927df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return BB; 1928df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 1929df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1930df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 1931df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// Constants. 1932df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 1933df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 1934df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseValID - Parse an abstract value that doesn't necessarily have a 1935df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// type implied. For example, if we parse "4" we don't know what integer type 1936df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// it has. The value will later be combined with its type and checked for 193724e64df7ec25b55aa872c2ef33728dfbb8c353c4Victor Hernandez/// sanity. PFS is used to convert function-local operands of metadata (since 193824e64df7ec25b55aa872c2ef33728dfbb8c353c4Victor Hernandez/// metadata operands are not just parsed here but also converted to values). 193924e64df7ec25b55aa872c2ef33728dfbb8c353c4Victor Hernandez/// PFS can be null when we are not parsing metadata values inside a function. 1940bf170d4c2ffd9dc99fad1fabfbf1f90f980a9782Victor Hernandezbool LLParser::ParseValID(ValID &ID, PerFunctionState *PFS) { 1941df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Loc = Lex.getLoc(); 1942df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Lex.getKind()) { 1943df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner default: return TokError("expected value token"); 1944df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::GlobalID: // @42 1945df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.UIntVal = Lex.getUIntVal(); 1946df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_GlobalID; 1947df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1948df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::GlobalVar: // @foo 1949df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.StrVal = Lex.getStrVal(); 1950df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_GlobalName; 1951df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1952df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::LocalVarID: // %42 1953df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.UIntVal = Lex.getUIntVal(); 1954df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_LocalID; 1955df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1956df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::LocalVar: // %foo 1957df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.StrVal = Lex.getStrVal(); 1958df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_LocalName; 1959df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1960834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman case lltok::exclaim: // !42, !{...}, or !"foo" 1961834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman return ParseMetadataValue(ID, PFS); 1962df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::APSInt: 1963a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar ID.APSIntVal = Lex.getAPSIntVal(); 1964df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_APSInt; 1965df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1966df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::APFloat: 1967df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.APFloatVal = Lex.getAPFloatVal(); 1968df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_APFloat; 1969df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1970df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_true: 19715defacc6e605f4651c6300237cef8e9bb2eb6d0eOwen Anderson ID.ConstantVal = ConstantInt::getTrue(Context); 1972df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 1973df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1974df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_false: 19755defacc6e605f4651c6300237cef8e9bb2eb6d0eOwen Anderson ID.ConstantVal = ConstantInt::getFalse(Context); 1976df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 1977df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 1978df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_null: ID.Kind = ValID::t_Null; break; 1979df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_undef: ID.Kind = ValID::t_Undef; break; 1980df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_zeroinitializer: ID.Kind = ValID::t_Zero; break; 1981a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1982df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::lbrace: { 1983df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // ValID ::= '{' ConstVector '}' 1984df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 1985df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<Constant*, 16> Elts; 1986df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseGlobalValueVector(Elts) || 1987df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rbrace, "expected end of struct constant")) 1988df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 1989a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 1990b065b06c12dba6001b8140df2744d0c856ef6ea1Chris Lattner // FIXME: Get this type from context instead of reconstructing it! 1991b065b06c12dba6001b8140df2744d0c856ef6ea1Chris Lattner ID.ConstantVal = ConstantStruct::getAnon(Context, Elts); 1992df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 1993df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 1994df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 1995df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::less: { 1996df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // ValID ::= '<' ConstVector '>' --> Vector. 1997df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // ValID ::= '<' '{' ConstVector '}' '>' --> Packed Struct. 1998df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 19993ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner bool isPackedStruct = EatIfPresent(lltok::lbrace); 2000a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2001df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<Constant*, 16> Elts; 2002df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy FirstEltLoc = Lex.getLoc(); 2003df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseGlobalValueVector(Elts) || 2004df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner (isPackedStruct && 2005df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rbrace, "expected end of packed struct")) || 2006df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::greater, "expected end of constant")) 2007df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2008a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2009df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (isPackedStruct) { 2010b065b06c12dba6001b8140df2744d0c856ef6ea1Chris Lattner // FIXME: Get this type from context instead of reconstructing it! 2011b065b06c12dba6001b8140df2744d0c856ef6ea1Chris Lattner ID.ConstantVal = ConstantStruct::getAnon(Context, Elts, true); 2012df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 2013df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2014df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2015a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2016df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Elts.empty()) 2017df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "constant vector must not be empty"); 2018df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2019b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands if (!Elts[0]->getType()->isIntegerTy() && 2020b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands !Elts[0]->getType()->isFloatingPointTy()) 2021df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(FirstEltLoc, 2022df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "vector elements must have integer or floating point type"); 2023a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2024df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Verify that all the vector elements have the same type. 2025df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 1, e = Elts.size(); i != e; ++i) 2026df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Elts[i]->getType() != Elts[0]->getType()) 2027df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(FirstEltLoc, 2028d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer "vector element #" + Twine(i) + 20290cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner " is not of type '" + getTypeString(Elts[0]->getType())); 2030a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 20312ca5c8644e6c35b3a7910a576ed89cddb7b82c3bChris Lattner ID.ConstantVal = ConstantVector::get(Elts); 2032df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 2033df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2034df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2035df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::lsquare: { // Array Constant 2036df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2037df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<Constant*, 16> Elts; 2038df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy FirstEltLoc = Lex.getLoc(); 2039df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseGlobalValueVector(Elts) || 2040df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rsquare, "expected end of array constant")) 2041df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2042df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2043df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Handle empty element. 2044df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Elts.empty()) { 2045df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Use undef instead of an array because it's inconvenient to determine 2046df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // the element type at this point, there being no elements to examine. 2047081b505f77b183b7b029818218245cf4986e8948Chris Lattner ID.Kind = ValID::t_EmptyArray; 2048df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2049df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2050a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2051df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!Elts[0]->getType()->isFirstClassType()) 2052a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar return Error(FirstEltLoc, "invalid array element type: " + 20530cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(Elts[0]->getType())); 2054a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2055debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson ArrayType *ATy = ArrayType::get(Elts[0]->getType(), Elts.size()); 2056a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2057df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Verify all elements are correct type! 20586d6b3cc89b9d1911cff4931dadfe670f94fcbb3bChris Lattner for (unsigned i = 0, e = Elts.size(); i != e; ++i) { 2059df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Elts[i]->getType() != Elts[0]->getType()) 2060df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(FirstEltLoc, 2061d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer "array element #" + Twine(i) + 20620cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner " is not of type '" + getTypeString(Elts[0]->getType())); 2063df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2064a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2065267010864e139781ef5949939e081c41f954de0aJay Foad ID.ConstantVal = ConstantArray::get(ATy, Elts); 2066df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 2067df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2068df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2069df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_c: // c "foo" 2070df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 20711d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson ID.ConstantVal = ConstantArray::get(Context, Lex.getStrVal(), false); 2072df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::StringConstant, "expected string")) return true; 2073df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 2074df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2075df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2076df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_asm: { 20778ba2d5befc05ca73d3bac8708819bbbe759e2cf9Dale Johannesen // ValID ::= 'asm' SideEffect? AlignStack? STRINGCONSTANT ',' STRINGCONSTANT 20788ba2d5befc05ca73d3bac8708819bbbe759e2cf9Dale Johannesen bool HasSideEffect, AlignStack; 2079df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2080df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseOptionalToken(lltok::kw_sideeffect, HasSideEffect) || 20818ba2d5befc05ca73d3bac8708819bbbe759e2cf9Dale Johannesen ParseOptionalToken(lltok::kw_alignstack, AlignStack) || 20823ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseStringConstant(ID.StrVal) || 20833ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseToken(lltok::comma, "expected comma in inline asm expression") || 2084df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::StringConstant, "expected constraint string")) 2085df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2086df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.StrVal2 = Lex.getStrVal(); 2087f0bb41c078d657c70ce6b95d5b56645c72ca7db4Daniel Dunbar ID.UIntVal = unsigned(HasSideEffect) | (unsigned(AlignStack)<<1); 2088df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_InlineAsm; 2089df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2090df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2091a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 209209d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner case lltok::kw_blockaddress: { 209309d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner // ValID ::= 'blockaddress' '(' @foo ',' %bar ')' 209409d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner Lex.Lex(); 209509d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 209609d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner ValID Fn, Label; 209709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner LocTy FnLoc, LabelLoc; 209809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 209909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner if (ParseToken(lltok::lparen, "expected '(' in block address expression") || 210009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner ParseValID(Fn) || 210109d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner ParseToken(lltok::comma, "expected comma in block address expression")|| 210209d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner ParseValID(Label) || 210309d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner ParseToken(lltok::rparen, "expected ')' in block address expression")) 210409d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner return true; 2105cdfc940912d56a63b6f12eaa7f3faf79cf74c693Chris Lattner 210609d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner if (Fn.Kind != ValID::t_GlobalID && Fn.Kind != ValID::t_GlobalName) 210709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner return Error(Fn.Loc, "expected function name in blockaddress"); 2108cdfc940912d56a63b6f12eaa7f3faf79cf74c693Chris Lattner if (Label.Kind != ValID::t_LocalID && Label.Kind != ValID::t_LocalName) 210909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner return Error(Label.Loc, "expected basic block name in blockaddress"); 211009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 211109d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner // Make a global variable as a placeholder for this reference. 211209d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner GlobalVariable *FwdRef = new GlobalVariable(*M, Type::getInt8Ty(Context), 211309d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner false, GlobalValue::InternalLinkage, 211409d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 0, ""); 211509d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner ForwardRefBlockAddresses[Fn].push_back(std::make_pair(Label, FwdRef)); 211609d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner ID.ConstantVal = FwdRef; 211709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner ID.Kind = ValID::t_Constant; 211809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner return false; 211909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner } 212009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 2121df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_trunc: 2122df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_zext: 2123df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_sext: 2124df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_fptrunc: 2125df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_fpext: 2126df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_bitcast: 2127df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_uitofp: 2128df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_sitofp: 2129df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_fptoui: 2130a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar case lltok::kw_fptosi: 2131df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_inttoptr: 2132a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar case lltok::kw_ptrtoint: { 2133df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Opc = Lex.getUIntVal(); 21341d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder DestTy(Type::getVoidTy(Context)); 2135df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Constant *SrcVal; 2136df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2137df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::lparen, "expected '(' after constantexpr cast") || 2138df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalTypeAndValue(SrcVal) || 213924b108bc8ca75922d4cb8e7f197934b8269d4fc3Dan Gohman ParseToken(lltok::kw_to, "expected 'to' in constantexpr cast") || 2140df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseType(DestTy) || 2141df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rparen, "expected ')' at end of constantexpr cast")) 2142df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2143df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!CastInst::castIsValid((Instruction::CastOps)Opc, SrcVal, DestTy)) 2144df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "invalid cast opcode for cast from '" + 21450cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(SrcVal->getType()) + "' to '" + 21460cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(DestTy) + "'"); 2147a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar ID.ConstantVal = ConstantExpr::getCast((Instruction::CastOps)Opc, 2148fba933c823a2862067e0696bd5032ab18185bd77Owen Anderson SrcVal, DestTy); 2149df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 2150df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2151df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2152df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_extractvalue: { 2153df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2154df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Constant *Val; 2155df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<unsigned, 4> Indices; 2156df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::lparen, "expected '(' in extractvalue constantexpr")|| 2157df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalTypeAndValue(Val) || 2158df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseIndexList(Indices) || 2159df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rparen, "expected ')' in extractvalue constantexpr")) 2160df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2161e8bc45a645f1df1c9f8b23c6f29247a61af14f19Devang Patel 2162fdfeb6976f07ad10d809b922ed7376ba2a3539beChris Lattner if (!Val->getType()->isAggregateType()) 2163fdfeb6976f07ad10d809b922ed7376ba2a3539beChris Lattner return Error(ID.Loc, "extractvalue operand must be aggregate type"); 2164df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ExtractValueInst::getIndexedType(Val->getType(), Indices.begin(), 2165df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Indices.end())) 2166df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "invalid indices for extractvalue"); 2167e3e51c0038bd6ba2add82e2246e97edec0ab2204Jay Foad ID.ConstantVal = 2168baf3c404409d5e47b13984a7f95bfbd6d1f2e79eOwen Anderson ConstantExpr::getExtractValue(Val, Indices.data(), Indices.size()); 2169df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 2170df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2171df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2172df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_insertvalue: { 2173df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2174df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Constant *Val0, *Val1; 2175df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<unsigned, 4> Indices; 2176df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::lparen, "expected '(' in insertvalue constantexpr")|| 2177df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalTypeAndValue(Val0) || 2178df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected comma in insertvalue constantexpr")|| 2179df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalTypeAndValue(Val1) || 2180df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseIndexList(Indices) || 2181df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rparen, "expected ')' in insertvalue constantexpr")) 2182df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2183fdfeb6976f07ad10d809b922ed7376ba2a3539beChris Lattner if (!Val0->getType()->isAggregateType()) 2184fdfeb6976f07ad10d809b922ed7376ba2a3539beChris Lattner return Error(ID.Loc, "insertvalue operand must be aggregate type"); 2185df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ExtractValueInst::getIndexedType(Val0->getType(), Indices.begin(), 2186df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Indices.end())) 2187df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "invalid indices for insertvalue"); 2188baf3c404409d5e47b13984a7f95bfbd6d1f2e79eOwen Anderson ID.ConstantVal = ConstantExpr::getInsertValue(Val0, Val1, 2189fba933c823a2862067e0696bd5032ab18185bd77Owen Anderson Indices.data(), Indices.size()); 2190df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 2191df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2192df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2193df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_icmp: 21947f6aa2b162e5daaf7b9ccf05d749597d3d7cf460Nick Lewycky case lltok::kw_fcmp: { 2195df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned PredVal, Opc = Lex.getUIntVal(); 2196df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Constant *Val0, *Val1; 2197df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2198df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseCmpPredicate(PredVal, Opc) || 2199df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::lparen, "expected '(' in compare constantexpr") || 2200df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalTypeAndValue(Val0) || 2201df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected comma in compare constantexpr") || 2202df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalTypeAndValue(Val1) || 2203df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rparen, "expected ')' in compare constantexpr")) 2204df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2205a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2206df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val0->getType() != Val1->getType()) 2207df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "compare operands must have the same type"); 2208a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2209df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner CmpInst::Predicate Pred = (CmpInst::Predicate)PredVal; 2210a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2211df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Opc == Instruction::FCmp) { 2212b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands if (!Val0->getType()->isFPOrFPVectorTy()) 2213df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "fcmp requires floating point operands"); 2214baf3c404409d5e47b13984a7f95bfbd6d1f2e79eOwen Anderson ID.ConstantVal = ConstantExpr::getFCmp(Pred, Val0, Val1); 22157f6aa2b162e5daaf7b9ccf05d749597d3d7cf460Nick Lewycky } else { 22167f6aa2b162e5daaf7b9ccf05d749597d3d7cf460Nick Lewycky assert(Opc == Instruction::ICmp && "Unexpected opcode for CmpInst!"); 2217b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands if (!Val0->getType()->isIntOrIntVectorTy() && 22181df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands !Val0->getType()->isPointerTy()) 2219df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "icmp requires pointer or integer operands"); 2220baf3c404409d5e47b13984a7f95bfbd6d1f2e79eOwen Anderson ID.ConstantVal = ConstantExpr::getICmp(Pred, Val0, Val1); 2221df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2222df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 2223df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2224df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2225a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2226df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Binary Operators. 2227df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_add: 2228ae3a0be92e33bc716722aa600983fc1535acb122Dan Gohman case lltok::kw_fadd: 2229df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_sub: 2230ae3a0be92e33bc716722aa600983fc1535acb122Dan Gohman case lltok::kw_fsub: 2231df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_mul: 2232ae3a0be92e33bc716722aa600983fc1535acb122Dan Gohman case lltok::kw_fmul: 2233df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_udiv: 2234df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_sdiv: 2235df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_fdiv: 2236df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_urem: 2237df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_srem: 2238f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case lltok::kw_frem: 2239f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case lltok::kw_shl: 2240f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case lltok::kw_lshr: 2241f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case lltok::kw_ashr: { 224259858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman bool NUW = false; 224359858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman bool NSW = false; 224459858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman bool Exact = false; 2245df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Opc = Lex.getUIntVal(); 2246df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Constant *Val0, *Val1; 2247df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 224859858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman LocTy ModifierLoc = Lex.getLoc(); 2249f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner if (Opc == Instruction::Add || Opc == Instruction::Sub || 2250f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner Opc == Instruction::Mul || Opc == Instruction::Shl) { 225159858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman if (EatIfPresent(lltok::kw_nuw)) 225259858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman NUW = true; 225359858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman if (EatIfPresent(lltok::kw_nsw)) { 225459858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman NSW = true; 225559858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman if (EatIfPresent(lltok::kw_nuw)) 225659858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman NUW = true; 225759858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman } 2258f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner } else if (Opc == Instruction::SDiv || Opc == Instruction::UDiv || 2259f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner Opc == Instruction::LShr || Opc == Instruction::AShr) { 226059858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman if (EatIfPresent(lltok::kw_exact)) 226159858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman Exact = true; 226259858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman } 2263df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::lparen, "expected '(' in binary constantexpr") || 2264df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalTypeAndValue(Val0) || 2265df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected comma in binary constantexpr") || 2266df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalTypeAndValue(Val1) || 2267df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rparen, "expected ')' in binary constantexpr")) 2268df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2269df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val0->getType() != Val1->getType()) 2270df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "operands of constexpr must have same type"); 2271b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands if (!Val0->getType()->isIntOrIntVectorTy()) { 227259858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman if (NUW) 227359858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman return Error(ModifierLoc, "nuw only applies to integer operations"); 227459858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman if (NSW) 227559858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman return Error(ModifierLoc, "nsw only applies to integer operations"); 227659858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman } 22771eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman // Check that the type is valid for the operator. 22781eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman switch (Opc) { 22791eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::Add: 22801eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::Sub: 22811eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::Mul: 22821eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::UDiv: 22831eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::SDiv: 22841eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::URem: 22851eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::SRem: 2286f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case Instruction::Shl: 2287f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case Instruction::AShr: 2288f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case Instruction::LShr: 22891eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman if (!Val0->getType()->isIntOrIntVectorTy()) 22901eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman return Error(ID.Loc, "constexpr requires integer operands"); 22911eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman break; 22921eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::FAdd: 22931eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::FSub: 22941eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::FMul: 22951eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::FDiv: 22961eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman case Instruction::FRem: 22971eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman if (!Val0->getType()->isFPOrFPVectorTy()) 22981eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman return Error(ID.Loc, "constexpr requires fp operands"); 22991eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman break; 23001eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman default: llvm_unreachable("Unknown binary operator!"); 23011eaac532615a54a1133367dc2c4ceaa79a150a9dDan Gohman } 2302f8dbee7cea072eb63ae343759975109553697bcbDan Gohman unsigned Flags = 0; 2303f8dbee7cea072eb63ae343759975109553697bcbDan Gohman if (NUW) Flags |= OverflowingBinaryOperator::NoUnsignedWrap; 2304f8dbee7cea072eb63ae343759975109553697bcbDan Gohman if (NSW) Flags |= OverflowingBinaryOperator::NoSignedWrap; 230535bda8914c0d1c02a6f90f42e7810c83150737e1Chris Lattner if (Exact) Flags |= PossiblyExactOperator::IsExact; 2306f8dbee7cea072eb63ae343759975109553697bcbDan Gohman Constant *C = ConstantExpr::get(Opc, Val0, Val1, Flags); 230759858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman ID.ConstantVal = C; 2308df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 2309df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2310df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2311a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2312df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Logical Operations 2313df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_and: 2314df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_or: 2315df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_xor: { 2316df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Opc = Lex.getUIntVal(); 2317df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Constant *Val0, *Val1; 2318df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2319df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::lparen, "expected '(' in logical constantexpr") || 2320df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalTypeAndValue(Val0) || 2321df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected comma in logical constantexpr") || 2322df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalTypeAndValue(Val1) || 2323df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rparen, "expected ')' in logical constantexpr")) 2324df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2325df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Val0->getType() != Val1->getType()) 2326df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "operands of constexpr must have same type"); 2327b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands if (!Val0->getType()->isIntOrIntVectorTy()) 2328df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, 2329df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner "constexpr requires integer or integer vector operands"); 2330baf3c404409d5e47b13984a7f95bfbd6d1f2e79eOwen Anderson ID.ConstantVal = ConstantExpr::get(Opc, Val0, Val1); 2331df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 2332df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2333a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar } 2334a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2335df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_getelementptr: 2336df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_shufflevector: 2337df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_insertelement: 2338df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_extractelement: 2339df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_select: { 2340df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Opc = Lex.getUIntVal(); 2341df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<Constant*, 16> Elts; 2342dd8004dc73d091ccb3927dbbc3b41639a3738ae3Dan Gohman bool InBounds = false; 2343df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2344dd8004dc73d091ccb3927dbbc3b41639a3738ae3Dan Gohman if (Opc == Instruction::GetElementPtr) 2345dcb40a3c1c747c88c4e634e34d1b4d7533a86adaDan Gohman InBounds = EatIfPresent(lltok::kw_inbounds); 2346df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::lparen, "expected '(' in constantexpr") || 2347df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseGlobalValueVector(Elts) || 2348df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rparen, "expected ')' in constantexpr")) 2349df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2350a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2351df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Opc == Instruction::GetElementPtr) { 23521df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (Elts.size() == 0 || !Elts[0]->getType()->isPointerTy()) 2353df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "getelementptr requires pointer operand"); 2354a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2355df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!GetElementPtrInst::getIndexedType(Elts[0]->getType(), 23564e9bac3769cb668aad20f1ac2d6a35d9ba452f3aEli Friedman (Value**)(Elts.data() + 1), 23574e9bac3769cb668aad20f1ac2d6a35d9ba452f3aEli Friedman Elts.size() - 1)) 2358df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "invalid indices for getelementptr"); 2359f8dbee7cea072eb63ae343759975109553697bcbDan Gohman ID.ConstantVal = InBounds ? 2360f8dbee7cea072eb63ae343759975109553697bcbDan Gohman ConstantExpr::getInBoundsGetElementPtr(Elts[0], 2361f8dbee7cea072eb63ae343759975109553697bcbDan Gohman Elts.data() + 1, 2362f8dbee7cea072eb63ae343759975109553697bcbDan Gohman Elts.size() - 1) : 2363f8dbee7cea072eb63ae343759975109553697bcbDan Gohman ConstantExpr::getGetElementPtr(Elts[0], 2364f8dbee7cea072eb63ae343759975109553697bcbDan Gohman Elts.data() + 1, Elts.size() - 1); 2365df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else if (Opc == Instruction::Select) { 2366df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Elts.size() != 3) 2367df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "expected three operands to select"); 2368df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (const char *Reason = SelectInst::areInvalidOperands(Elts[0], Elts[1], 2369df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Elts[2])) 2370df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, Reason); 2371baf3c404409d5e47b13984a7f95bfbd6d1f2e79eOwen Anderson ID.ConstantVal = ConstantExpr::getSelect(Elts[0], Elts[1], Elts[2]); 2372df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else if (Opc == Instruction::ShuffleVector) { 2373df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Elts.size() != 3) 2374df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "expected three operands to shufflevector"); 2375df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ShuffleVectorInst::isValidOperands(Elts[0], Elts[1], Elts[2])) 2376df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "invalid operands to shufflevector"); 2377fba933c823a2862067e0696bd5032ab18185bd77Owen Anderson ID.ConstantVal = 2378baf3c404409d5e47b13984a7f95bfbd6d1f2e79eOwen Anderson ConstantExpr::getShuffleVector(Elts[0], Elts[1],Elts[2]); 2379df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else if (Opc == Instruction::ExtractElement) { 2380df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Elts.size() != 2) 2381df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "expected two operands to extractelement"); 2382df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ExtractElementInst::isValidOperands(Elts[0], Elts[1])) 2383df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "invalid extractelement operands"); 2384baf3c404409d5e47b13984a7f95bfbd6d1f2e79eOwen Anderson ID.ConstantVal = ConstantExpr::getExtractElement(Elts[0], Elts[1]); 2385df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else { 2386df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner assert(Opc == Instruction::InsertElement && "Unknown opcode"); 2387df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Elts.size() != 3) 2388df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "expected three operands to insertelement"); 2389df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!InsertElementInst::isValidOperands(Elts[0], Elts[1], Elts[2])) 2390df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "invalid insertelement operands"); 2391fba933c823a2862067e0696bd5032ab18185bd77Owen Anderson ID.ConstantVal = 2392baf3c404409d5e47b13984a7f95bfbd6d1f2e79eOwen Anderson ConstantExpr::getInsertElement(Elts[0], Elts[1],Elts[2]); 2393df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2394a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2395df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.Kind = ValID::t_Constant; 2396df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2397df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2398df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2399a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2400df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2401df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2402df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 2403df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2404df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseGlobalValue - Parse a global value with the specified type. 240592f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandezbool LLParser::ParseGlobalValue(const Type *Ty, Constant *&C) { 240692f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez C = 0; 2407df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ValID ID; 240892f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez Value *V = NULL; 240992f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez bool Parsed = ParseValID(ID) || 241092f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez ConvertValIDToValue(Ty, ID, V, NULL); 241192f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez if (V && !(C = dyn_cast<Constant>(V))) 241292f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return Error(ID.Loc, "global values must be constants"); 241392f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return Parsed; 241492f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez} 241592f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez 241692f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandezbool LLParser::ParseGlobalTypeAndValue(Constant *&V) { 241792f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez PATypeHolder Type(Type::getVoidTy(Context)); 241892f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return ParseType(Type) || 241992f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez ParseGlobalValue(Type, V); 242092f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez} 242192f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez 242292f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez/// ParseGlobalValueVector 242392f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez/// ::= /*empty*/ 242492f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez/// ::= TypeAndValue (',' TypeAndValue)* 242592f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandezbool LLParser::ParseGlobalValueVector(SmallVectorImpl<Constant*> &Elts) { 242692f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez // Empty list. 242792f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez if (Lex.getKind() == lltok::rbrace || 242892f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez Lex.getKind() == lltok::rsquare || 242992f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez Lex.getKind() == lltok::greater || 243092f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez Lex.getKind() == lltok::rparen) 243192f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return false; 243292f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez 243392f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez Constant *C; 243492f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez if (ParseGlobalTypeAndValue(C)) return true; 243592f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez Elts.push_back(C); 243692f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez 243792f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez while (EatIfPresent(lltok::comma)) { 243892f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez if (ParseGlobalTypeAndValue(C)) return true; 243992f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez Elts.push_back(C); 244092f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez } 244192f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez 244292f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return false; 2443df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 2444df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2445309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohmanbool LLParser::ParseMetadataListValue(ValID &ID, PerFunctionState *PFS) { 2446309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman assert(Lex.getKind() == lltok::lbrace); 2447309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman Lex.Lex(); 2448309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman 2449309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman SmallVector<Value*, 16> Elts; 2450309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman if (ParseMDNodeVector(Elts, PFS) || 2451309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman ParseToken(lltok::rbrace, "expected end of metadata node")) 2452309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman return true; 2453309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman 2454ec9186bcf975c9ffa3ec7ca97867f0ec6eb55115Jay Foad ID.MDNodeVal = MDNode::get(Context, Elts); 2455309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman ID.Kind = ValID::t_MDNode; 2456309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman return false; 2457309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman} 2458309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman 2459834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman/// ParseMetadataValue 2460834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman/// ::= !42 2461834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman/// ::= !{...} 2462834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman/// ::= !"string" 2463834480374ba38b2a31d6b63b492e442d75a462cfDan Gohmanbool LLParser::ParseMetadataValue(ValID &ID, PerFunctionState *PFS) { 2464834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman assert(Lex.getKind() == lltok::exclaim); 2465834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman Lex.Lex(); 2466834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman 2467834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman // MDNode: 2468834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman // !{ ... } 2469309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman if (Lex.getKind() == lltok::lbrace) 2470309b3af547a60bedd74daa2a94ebd3d3ed5f06e9Dan Gohman return ParseMetadataListValue(ID, PFS); 2471834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman 2472834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman // Standalone metadata reference 2473834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman // !42 2474834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman if (Lex.getKind() == lltok::APSInt) { 2475834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman if (ParseMDNodeID(ID.MDNodeVal)) return true; 2476834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman ID.Kind = ValID::t_MDNode; 2477834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman return false; 2478834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman } 2479834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman 2480834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman // MDString: 2481834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman // ::= '!' STRINGCONSTANT 2482834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman if (ParseMDString(ID.MDStringVal)) return true; 2483834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman ID.Kind = ValID::t_MDString; 2484834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman return false; 2485834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman} 2486834480374ba38b2a31d6b63b492e442d75a462cfDan Gohman 248792f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez 248892f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez//===----------------------------------------------------------------------===// 248992f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez// Function Parsing. 249092f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez//===----------------------------------------------------------------------===// 249192f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez 249292f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandezbool LLParser::ConvertValIDToValue(const Type *Ty, ValID &ID, Value *&V, 249392f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez PerFunctionState *PFS) { 24941df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (Ty->isFunctionTy()) 2495df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "functions are not values, refer to them as pointers"); 2496a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2497df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (ID.Kind) { 2498a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar default: llvm_unreachable("Unknown ValID!"); 2499df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case ValID::t_LocalID: 250092f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez if (!PFS) return Error(ID.Loc, "invalid use of function-local name"); 250192f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez V = PFS->GetVal(ID.UIntVal, Ty, ID.Loc); 250292f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return (V == 0); 2503df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case ValID::t_LocalName: 250492f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez if (!PFS) return Error(ID.Loc, "invalid use of function-local name"); 250592f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez V = PFS->GetVal(ID.StrVal, Ty, ID.Loc); 250692f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return (V == 0); 250792f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez case ValID::t_InlineAsm: { 250892f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez const PointerType *PTy = dyn_cast<PointerType>(Ty); 250992f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez const FunctionType *FTy = 251092f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0; 251192f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez if (!FTy || !InlineAsm::Verify(FTy, ID.StrVal2)) 251292f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return Error(ID.Loc, "invalid type for inline asm constraint string"); 251392f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez V = InlineAsm::get(FTy, ID.StrVal, ID.StrVal2, ID.UIntVal&1, ID.UIntVal>>1); 251492f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return false; 251592f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez } 251692f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez case ValID::t_MDNode: 251792f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez if (!Ty->isMetadataTy()) 251892f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return Error(ID.Loc, "metadata value must have metadata type"); 251992f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez V = ID.MDNodeVal; 252092f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return false; 252192f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez case ValID::t_MDString: 252292f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez if (!Ty->isMetadataTy()) 252392f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return Error(ID.Loc, "metadata value must have metadata type"); 252492f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez V = ID.MDStringVal; 252592f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez return false; 2526df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case ValID::t_GlobalName: 2527df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner V = GetGlobalVal(ID.StrVal, Ty, ID.Loc); 2528df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return V == 0; 2529df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case ValID::t_GlobalID: 2530df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner V = GetGlobalVal(ID.UIntVal, Ty, ID.Loc); 2531df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return V == 0; 2532df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case ValID::t_APSInt: 25331df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (!Ty->isIntegerTy()) 2534df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "integer constant must have integer type"); 253540f8f6264d5af2c38e797e0dc59827cd231e8ff7Jay Foad ID.APSIntVal = ID.APSIntVal.extOrTrunc(Ty->getPrimitiveSizeInBits()); 2536eed707b1e6097aac2bb6b3d47271f6300ace7f2eOwen Anderson V = ConstantInt::get(Context, ID.APSIntVal); 2537df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2538df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case ValID::t_APFloat: 2539b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands if (!Ty->isFloatingPointTy() || 2540df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner !ConstantFP::isValueValidForType(Ty, ID.APFloatVal)) 2541df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "floating point constant invalid for type"); 2542a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2543df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // The lexer has no type info, so builds all float and double FP constants 2544df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // as double. Fix this here. Long double does not need this. 2545df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (&ID.APFloatVal.getSemantics() == &APFloat::IEEEdouble && 2546cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner Ty->isFloatTy()) { 2547df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner bool Ignored; 2548df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ID.APFloatVal.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, 2549df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner &Ignored); 2550df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 25516f83c9c6ef0e7f79825a0a8f22941815e4b684c7Owen Anderson V = ConstantFP::get(Context, ID.APFloatVal); 2552a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2553959873d2da763c0e3b3c67c39aab179fc43c5a52Chris Lattner if (V->getType() != Ty) 2554959873d2da763c0e3b3c67c39aab179fc43c5a52Chris Lattner return Error(ID.Loc, "floating point constant does not have type '" + 25550cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(Ty) + "'"); 2556a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2557df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2558df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case ValID::t_Null: 25591df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (!Ty->isPointerTy()) 2560df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "null must be a pointer type"); 25619e9a0d5fc26878e51a58a8b57900fcbf952c2691Owen Anderson V = ConstantPointerNull::get(cast<PointerType>(Ty)); 2562df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2563df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case ValID::t_Undef: 2564e67c1aa3986cf98f2021a31a6ad502857c757b7bChris Lattner // FIXME: LabelTy should not be a first-class type. 2565cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if ((!Ty->isFirstClassType() || Ty->isLabelTy()) && 256647c5188789bc40671504ed1fa3a44765cefba44fDuncan Sands !Ty->isOpaqueTy()) 2567e67c1aa3986cf98f2021a31a6ad502857c757b7bChris Lattner return Error(ID.Loc, "invalid type for undef constant"); 25689e9a0d5fc26878e51a58a8b57900fcbf952c2691Owen Anderson V = UndefValue::get(Ty); 2569df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2570081b505f77b183b7b029818218245cf4986e8948Chris Lattner case ValID::t_EmptyArray: 25711df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (!Ty->isArrayTy() || cast<ArrayType>(Ty)->getNumElements() != 0) 2572081b505f77b183b7b029818218245cf4986e8948Chris Lattner return Error(ID.Loc, "invalid empty array initializer"); 25739e9a0d5fc26878e51a58a8b57900fcbf952c2691Owen Anderson V = UndefValue::get(Ty); 2574081b505f77b183b7b029818218245cf4986e8948Chris Lattner return false; 2575df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case ValID::t_Zero: 2576e67c1aa3986cf98f2021a31a6ad502857c757b7bChris Lattner // FIXME: LabelTy should not be a first-class type. 2577cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (!Ty->isFirstClassType() || Ty->isLabelTy()) 2578df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "invalid type for null constant"); 2579a7235ea7245028a0723e8ab7fd011386b3900777Owen Anderson V = Constant::getNullValue(Ty); 2580df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2581df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case ValID::t_Constant: 258261c70e98ac3c7504d31dd9bc81c4e9cb998e9984Chris Lattner if (ID.ConstantVal->getType() != Ty) 2583df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ID.Loc, "constant expression type mismatch"); 2584fdfeb6976f07ad10d809b922ed7376ba2a3539beChris Lattner 2585df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner V = ID.ConstantVal; 2586df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2587df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2588df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 2589a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2590df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseValue(const Type *Ty, Value *&V, PerFunctionState &PFS) { 2591df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner V = 0; 2592df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ValID ID; 2593bf170d4c2ffd9dc99fad1fabfbf1f90f980a9782Victor Hernandez return ParseValID(ID, &PFS) || 259492f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez ConvertValIDToValue(Ty, ID, V, &PFS); 2595df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 2596df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2597df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseTypeAndValue(Value *&V, PerFunctionState &PFS) { 25981d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder T(Type::getVoidTy(Context)); 25993ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return ParseType(T) || 26003ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseValue(T, V, PFS); 2601df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 2602df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2603f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattnerbool LLParser::ParseTypeAndBasicBlock(BasicBlock *&BB, LocTy &Loc, 2604f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner PerFunctionState &PFS) { 2605f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner Value *V; 2606f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner Loc = Lex.getLoc(); 2607f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner if (ParseTypeAndValue(V, PFS)) return true; 2608f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner if (!isa<BasicBlock>(V)) 2609f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner return Error(Loc, "expected a basic block"); 2610f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner BB = cast<BasicBlock>(V); 2611f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner return false; 2612f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner} 2613f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner 2614f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner 2615df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// FunctionHeader 2616df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= OptionalLinkage OptionalVisibility OptionalCallingConv OptRetAttrs 2617bea4626f93c830e31f82cc947df28fdae583cd09Rafael Espindola/// OptUnnamedAddr Type GlobalName '(' ArgList ')' OptFuncAttrs OptSection 2618df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// OptionalAlign OptGC 2619df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) { 2620df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Parse the linkage. 2621df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy LinkageLoc = Lex.getLoc(); 2622df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Linkage; 2623a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 262465c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel unsigned Visibility, RetAttrs; 262565c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel CallingConv::ID CC; 26261d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder RetType(Type::getVoidTy(Context)); 2627df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy RetTypeLoc = Lex.getLoc(); 2628df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseOptionalLinkage(Linkage) || 2629df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalVisibility(Visibility) || 2630df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalCallingConv(CC) || 2631df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalAttrs(RetAttrs, 1) || 2632a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner ParseType(RetType, RetTypeLoc, true /*void allowed*/)) 2633df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2634df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2635df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Verify that the linkage is ok. 2636df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch ((GlobalValue::LinkageTypes)Linkage) { 2637df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case GlobalValue::ExternalLinkage: 2638df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; // always ok. 2639df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case GlobalValue::DLLImportLinkage: 26405f4ee1fc5d00ae55c30fa2ce450c69be4c6d6e63Duncan Sands case GlobalValue::ExternalWeakLinkage: 2641df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (isDefine) 2642df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(LinkageLoc, "invalid linkage for function definition"); 2643df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 2644bb46f52027416598a662dc1c58f48d9d56b1a65bRafael Espindola case GlobalValue::PrivateLinkage: 26453d10a5a75794356a0a568ce283713adc3a963200Bill Wendling case GlobalValue::LinkerPrivateLinkage: 26465e721d768254a920b78b9129d79a84c0163cb3f4Bill Wendling case GlobalValue::LinkerPrivateWeakLinkage: 264755ae515f9db484125a23429d4906c5edaf9f10d2Bill Wendling case GlobalValue::LinkerPrivateWeakDefAutoLinkage: 2648df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case GlobalValue::InternalLinkage: 264955f64dbb398cc8d967d1e32a8bb2190a60f5b61eNick Lewycky case GlobalValue::AvailableExternallyLinkage: 2650667d4b8de6dea70195ff12ef39a4deebffa2f5c7Duncan Sands case GlobalValue::LinkOnceAnyLinkage: 2651667d4b8de6dea70195ff12ef39a4deebffa2f5c7Duncan Sands case GlobalValue::LinkOnceODRLinkage: 2652667d4b8de6dea70195ff12ef39a4deebffa2f5c7Duncan Sands case GlobalValue::WeakAnyLinkage: 2653667d4b8de6dea70195ff12ef39a4deebffa2f5c7Duncan Sands case GlobalValue::WeakODRLinkage: 2654df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case GlobalValue::DLLExportLinkage: 2655df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!isDefine) 2656df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(LinkageLoc, "invalid linkage for function declaration"); 2657df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 2658df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case GlobalValue::AppendingLinkage: 26594dc2b39bf89d7c87868008ef8a0f807e0419aca6Duncan Sands case GlobalValue::CommonLinkage: 2660df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(LinkageLoc, "invalid function linkage type"); 2661df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2662a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 266399bb315f32a5f82f9e4978345ee39177db973242Chris Lattner if (!FunctionType::isValidReturnType(RetType) || 266447c5188789bc40671504ed1fa3a44765cefba44fDuncan Sands RetType->isOpaqueTy()) 2665df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(RetTypeLoc, "invalid function return type"); 2666a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2667f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner LocTy NameLoc = Lex.getLoc(); 2668f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner 2669f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner std::string FunctionName; 2670f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner if (Lex.getKind() == lltok::GlobalVar) { 2671f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner FunctionName = Lex.getStrVal(); 2672f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner } else if (Lex.getKind() == lltok::GlobalID) { // @42 is ok. 2673f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner unsigned NameID = Lex.getUIntVal(); 2674f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner 2675f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner if (NameID != NumberedVals.size()) 2676f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner return TokError("function expected to be numbered '%" + 2677d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer Twine(NumberedVals.size()) + "'"); 2678f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner } else { 2679df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("expected function name"); 2680f570e621ab6eec6c7656cc4c511e19aba12b42cdChris Lattner } 2681a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 26823ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner Lex.Lex(); 2683a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 26843ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (Lex.getKind() != lltok::lparen) 2685df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("expected '(' in function argument list"); 2686a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2687df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::vector<ArgInfo> ArgList; 2688df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner bool isVarArg; 2689df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned FuncAttrs; 2690df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::string Section; 2691df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Alignment; 26923ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner std::string GC; 26933971df5203146649a34dc50d217c0cc072d39be9Rafael Espindola bool UnnamedAddr; 26943971df5203146649a34dc50d217c0cc072d39be9Rafael Espindola LocTy UnnamedAddrLoc; 26953ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner 2696dfd19ddcfa7568d2118fbc3c6da612295200c31cChris Lattner if (ParseArgumentList(ArgList, isVarArg, false) || 26973971df5203146649a34dc50d217c0cc072d39be9Rafael Espindola ParseOptionalToken(lltok::kw_unnamed_addr, UnnamedAddr, 26983971df5203146649a34dc50d217c0cc072d39be9Rafael Espindola &UnnamedAddrLoc) || 26993ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseOptionalAttrs(FuncAttrs, 2) || 27003ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner (EatIfPresent(lltok::kw_section) && 27013ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseStringConstant(Section)) || 27023ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseOptionalAlignment(Alignment) || 27033ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner (EatIfPresent(lltok::kw_gc) && 27043ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner ParseStringConstant(GC))) 27053ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner return true; 2706df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2707df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If the alignment was parsed as an attribute, move to the alignment field. 2708df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FuncAttrs & Attribute::Alignment) { 2709df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Alignment = Attribute::getAlignmentFromAttrs(FuncAttrs); 2710df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FuncAttrs &= ~Attribute::Alignment; 2711df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2712a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2713df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Okay, if we got here, the function is syntactically valid. Convert types 2714df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // and do semantic checks. 2715df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::vector<const Type*> ParamTypeList; 2716df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<AttributeWithIndex, 8> Attrs; 2717a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2718df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (RetAttrs != Attribute::None) 2719df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Attrs.push_back(AttributeWithIndex::get(0, RetAttrs)); 2720a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2721df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { 2722df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParamTypeList.push_back(ArgList[i].Type); 2723df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ArgList[i].Attrs != Attribute::None) 2724df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Attrs.push_back(AttributeWithIndex::get(i+1, ArgList[i].Attrs)); 2725df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2726df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2727df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FuncAttrs != Attribute::None) 2728df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Attrs.push_back(AttributeWithIndex::get(~0, FuncAttrs)); 2729df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2730df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner AttrListPtr PAL = AttrListPtr::get(Attrs.begin(), Attrs.end()); 2731a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2732f012705c7e4ca8cf90b6b734ce1d5355daca5ba5Benjamin Kramer if (PAL.paramHasAttr(1, Attribute::StructRet) && !RetType->isVoidTy()) 2733a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar return Error(RetTypeLoc, "functions with 'sret' argument must return void"); 2734a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2735fba933c823a2862067e0696bd5032ab18185bd77Owen Anderson const FunctionType *FT = 2736debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson FunctionType::get(RetType, ParamTypeList, isVarArg); 2737debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson const PointerType *PFT = PointerType::getUnqual(FT); 2738df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2739df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Fn = 0; 2740df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!FunctionName.empty()) { 2741df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If this was a definition of a forward reference, remove the definition 2742df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // from the forward reference table and fill in the forward ref. 2743df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<std::string, std::pair<GlobalValue*, LocTy> >::iterator FRVI = 2744df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefVals.find(FunctionName); 2745df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FRVI != ForwardRefVals.end()) { 2746df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Fn = M->getFunction(FunctionName); 2747f1cfb953375b726f999976924f95fb80db3c1c97Chris Lattner if (Fn->getType() != PFT) 2748f1cfb953375b726f999976924f95fb80db3c1c97Chris Lattner return Error(FRVI->second.second, "invalid forward reference to " 2749f1cfb953375b726f999976924f95fb80db3c1c97Chris Lattner "function '" + FunctionName + "' with wrong type!"); 2750f1cfb953375b726f999976924f95fb80db3c1c97Chris Lattner 2751df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefVals.erase(FRVI); 2752df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else if ((Fn = M->getFunction(FunctionName))) { 2753d589099eec8d120b5a7227072c4e717856e2276fChris Lattner // Reject redefinitions. 2754d589099eec8d120b5a7227072c4e717856e2276fChris Lattner return Error(NameLoc, "invalid redefinition of function '" + 2755d589099eec8d120b5a7227072c4e717856e2276fChris Lattner FunctionName + "'"); 27561d871c5e547996a8dd5192e48d22aadf11cd2a9dChris Lattner } else if (M->getNamedValue(FunctionName)) { 27571d871c5e547996a8dd5192e48d22aadf11cd2a9dChris Lattner return Error(NameLoc, "redefinition of function '@" + FunctionName + "'"); 2758df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2759a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2760419055453cdc4f9be4a3ad80f9b49e881d528fe9Dan Gohman } else { 2761df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If this is a definition of a forward referenced function, make sure the 2762df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // types agree. 2763df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::map<unsigned, std::pair<GlobalValue*, LocTy> >::iterator I 2764df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner = ForwardRefValIDs.find(NumberedVals.size()); 2765df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I != ForwardRefValIDs.end()) { 2766df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Fn = cast<Function>(I->second.first); 2767df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Fn->getType() != PFT) 2768df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(NameLoc, "type of definition and forward reference of '@" + 2769d1e1703c39742f3c9fc3d27a442ff59bbdbfb5aaBenjamin Kramer Twine(NumberedVals.size()) + "' disagree"); 2770df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ForwardRefValIDs.erase(I); 2771df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2772df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2773df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2774df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Fn == 0) 2775df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Fn = Function::Create(FT, GlobalValue::ExternalLinkage, FunctionName, M); 2776df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner else // Move the forward-reference to the correct spot in the module. 2777df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner M->getFunctionList().splice(M->end(), M->getFunctionList(), Fn); 2778df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2779df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FunctionName.empty()) 2780df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner NumberedVals.push_back(Fn); 2781a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2782df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Fn->setLinkage((GlobalValue::LinkageTypes)Linkage); 2783df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Fn->setVisibility((GlobalValue::VisibilityTypes)Visibility); 2784df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Fn->setCallingConv(CC); 2785df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Fn->setAttributes(PAL); 2786bea4626f93c830e31f82cc947df28fdae583cd09Rafael Espindola Fn->setUnnamedAddr(UnnamedAddr); 2787df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Fn->setAlignment(Alignment); 2788df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Fn->setSection(Section); 2789df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!GC.empty()) Fn->setGC(GC.c_str()); 2790a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2791df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Add all of the arguments we parsed to the function. 2792df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Function::arg_iterator ArgIt = Fn->arg_begin(); 2793df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 0, e = ArgList.size(); i != e; ++i, ++ArgIt) { 2794df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If the argument has a name, insert it into the argument symbol table. 2795df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ArgList[i].Name.empty()) continue; 2796a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2797df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Set the name, if it conflicted, it will be auto-renamed. 2798df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ArgIt->setName(ArgList[i].Name); 2799a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2800af81235ef96a7a005b7fdfe5a64cce30df3d820dBenjamin Kramer if (ArgIt->getName() != ArgList[i].Name) 2801df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ArgList[i].Loc, "redefinition of argument '%" + 2802df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ArgList[i].Name + "'"); 2803df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2804a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2805df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2806df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 2807df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2808df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2809df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseFunctionBody 2810df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= '{' BasicBlock+ '}' 2811df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// 2812df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseFunctionBody(Function &Fn) { 28136b7c89ee096146aefebc245c7d8741b69786655aChris Lattner if (Lex.getKind() != lltok::lbrace) 2814df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("expected '{' in function body"); 2815df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); // eat the {. 2816a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 281709d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner int FunctionNumber = -1; 281809d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner if (!Fn.hasName()) FunctionNumber = NumberedVals.size()-1; 281909d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner 282009d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner PerFunctionState PFS(*this, Fn, FunctionNumber); 2821a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 28222fdf8dbed5661336059f647700e66bca1f4cd51aChris Lattner // We need at least one basic block. 28236b7c89ee096146aefebc245c7d8741b69786655aChris Lattner if (Lex.getKind() == lltok::rbrace) 28242fdf8dbed5661336059f647700e66bca1f4cd51aChris Lattner return TokError("function body requires at least one basic block"); 28252fdf8dbed5661336059f647700e66bca1f4cd51aChris Lattner 28266b7c89ee096146aefebc245c7d8741b69786655aChris Lattner while (Lex.getKind() != lltok::rbrace) 2827df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseBasicBlock(PFS)) return true; 2828a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2829df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Eat the }. 2830df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2831a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2832df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Verify function is ok. 283309d9ef4122414a1a2ec95f52d660d6500f2819d0Chris Lattner return PFS.FinishFunction(); 2834df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 2835df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2836df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseBasicBlock 2837df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= LabelStr? Instruction* 2838df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseBasicBlock(PerFunctionState &PFS) { 2839df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If this basic block starts out with a name, remember it. 2840df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::string Name; 2841df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy NameLoc = Lex.getLoc(); 2842df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Lex.getKind() == lltok::LabelStr) { 2843df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Name = Lex.getStrVal(); 2844df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2845df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2846a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2847df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner BasicBlock *BB = PFS.DefineBB(Name, NameLoc); 2848df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (BB == 0) return true; 2849a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2850df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::string NameStr; 2851a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2852df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Parse the instructions in this block until we get a terminator. 2853df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Instruction *Inst; 28541340dd37087c1d47a85a4461a8d33cd6ccbcfaafChris Lattner SmallVector<std::pair<unsigned, MDNode *>, 4> MetadataOnInst; 2855df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner do { 2856df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // This instruction may have three possibilities for a name: a) none 2857df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // specified, b) name specified "%foo =", c) number specified: "%4 =". 2858df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy NameLoc = Lex.getLoc(); 2859df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner int NameID = -1; 2860df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner NameStr = ""; 2861a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2862df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Lex.getKind() == lltok::LocalVarID) { 2863df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner NameID = Lex.getUIntVal(); 2864df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2865df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::equal, "expected '=' after instruction id")) 2866df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 28677a1b9bdd2b837b15c9213cdaf89cacc977e4600eChris Lattner } else if (Lex.getKind() == lltok::LocalVar) { 2868df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner NameStr = Lex.getStrVal(); 2869df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 2870df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::equal, "expected '=' after instruction name")) 2871df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 2872df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 2873f633a065de959b32892c51d741d4db010c5d25b1Devang Patel 2874f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner switch (ParseInstruction(Inst, BB, PFS)) { 2875f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner default: assert(0 && "Unknown ParseInstruction result!"); 2876f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner case InstError: return true; 2877f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner case InstNormal: 28784ba9d9b67be87ce82f71023643b759ff12fdb411Chris Lattner BB->getInstList().push_back(Inst); 28794ba9d9b67be87ce82f71023643b759ff12fdb411Chris Lattner 2880f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner // With a normal result, we check to see if the instruction is followed by 2881f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner // a comma and metadata. 2882f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner if (EatIfPresent(lltok::comma)) 28839d072f51ebf61edda9c31f831c2642d110170d13Dan Gohman if (ParseInstructionMetadata(Inst, &PFS)) 2884f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner return true; 2885f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner break; 2886f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner case InstExtraComma: 28874ba9d9b67be87ce82f71023643b759ff12fdb411Chris Lattner BB->getInstList().push_back(Inst); 28884ba9d9b67be87ce82f71023643b759ff12fdb411Chris Lattner 2889f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner // If the instruction parser ate an extra comma at the end of it, it 2890f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner // *must* be followed by metadata. 28919d072f51ebf61edda9c31f831c2642d110170d13Dan Gohman if (ParseInstructionMetadata(Inst, &PFS)) 2892f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner return true; 2893f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner break; 2894f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner } 2895f633a065de959b32892c51d741d4db010c5d25b1Devang Patel 2896df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Set the name on the instruction. 2897df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (PFS.SetInstName(NameID, NameStr, NameLoc, Inst)) return true; 2898df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } while (!isa<TerminatorInst>(Inst)); 2899a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2900df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 2901df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 2902df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2903df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 2904df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// Instruction Parsing. 2905df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 2906df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 2907df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseInstruction - Parse one of the many different instructions. 2908df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// 2909f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattnerint LLParser::ParseInstruction(Instruction *&Inst, BasicBlock *BB, 2910f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner PerFunctionState &PFS) { 2911df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner lltok::Kind Token = Lex.getKind(); 2912df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Token == lltok::Eof) 2913df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("found end of file when expecting more instructions"); 2914df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc = Lex.getLoc(); 2915f6f0bdfec336b596b095b4db8126149bbb33fec1Chris Lattner unsigned KeywordVal = Lex.getUIntVal(); 2916df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); // Eat the keyword. 2917a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 2918df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Token) { 2919df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner default: return Error(Loc, "expected instruction opcode"); 2920df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Terminator Instructions. 29211d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson case lltok::kw_unwind: Inst = new UnwindInst(Context); return false; 29221d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson case lltok::kw_unreachable: Inst = new UnreachableInst(Context); return false; 2923df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ret: return ParseRet(Inst, BB, PFS); 2924df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_br: return ParseBr(Inst, PFS); 2925df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_switch: return ParseSwitch(Inst, PFS); 2926ab21db79ef1d2530880ad11f21f0b87ffca02dd4Chris Lattner case lltok::kw_indirectbr: return ParseIndirectBr(Inst, PFS); 2927df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_invoke: return ParseInvoke(Inst, PFS); 2928df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Binary Operators. 2929df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_add: 2930df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_sub: 2931f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case lltok::kw_mul: 2932f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case lltok::kw_shl: { 2933f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner bool NUW = EatIfPresent(lltok::kw_nuw); 2934f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner bool NSW = EatIfPresent(lltok::kw_nsw); 2935f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner if (!NUW) NUW = EatIfPresent(lltok::kw_nuw); 2936f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner 2937f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner if (ParseArithmetic(Inst, PFS, KeywordVal, 1)) return true; 2938f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner 2939f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner if (NUW) cast<BinaryOperator>(Inst)->setHasNoUnsignedWrap(true); 2940f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner if (NSW) cast<BinaryOperator>(Inst)->setHasNoSignedWrap(true); 2941f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner return false; 294259858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman } 2943ae3a0be92e33bc716722aa600983fc1535acb122Dan Gohman case lltok::kw_fadd: 2944ae3a0be92e33bc716722aa600983fc1535acb122Dan Gohman case lltok::kw_fsub: 2945ae3a0be92e33bc716722aa600983fc1535acb122Dan Gohman case lltok::kw_fmul: return ParseArithmetic(Inst, PFS, KeywordVal, 2); 2946ae3a0be92e33bc716722aa600983fc1535acb122Dan Gohman 294735bda8914c0d1c02a6f90f42e7810c83150737e1Chris Lattner case lltok::kw_sdiv: 2948f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case lltok::kw_udiv: 2949f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case lltok::kw_lshr: 2950f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner case lltok::kw_ashr: { 2951f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner bool Exact = EatIfPresent(lltok::kw_exact); 2952f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner 2953f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner if (ParseArithmetic(Inst, PFS, KeywordVal, 1)) return true; 2954f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner if (Exact) cast<BinaryOperator>(Inst)->setIsExact(true); 2955f067d584a81ae771d301304ea885e55e2de8ee9aChris Lattner return false; 295659858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman } 295759858cf7926702596cf708daf21aeaf5b6feedf8Dan Gohman 2958df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_urem: 2959f6f0bdfec336b596b095b4db8126149bbb33fec1Chris Lattner case lltok::kw_srem: return ParseArithmetic(Inst, PFS, KeywordVal, 1); 2960e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner case lltok::kw_fdiv: 2961f6f0bdfec336b596b095b4db8126149bbb33fec1Chris Lattner case lltok::kw_frem: return ParseArithmetic(Inst, PFS, KeywordVal, 2); 2962df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_and: 2963df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_or: 2964f6f0bdfec336b596b095b4db8126149bbb33fec1Chris Lattner case lltok::kw_xor: return ParseLogical(Inst, PFS, KeywordVal); 2965df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_icmp: 29667f6aa2b162e5daaf7b9ccf05d749597d3d7cf460Nick Lewycky case lltok::kw_fcmp: return ParseCompare(Inst, PFS, KeywordVal); 2967df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Casts. 2968df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_trunc: 2969df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_zext: 2970df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_sext: 2971df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_fptrunc: 2972df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_fpext: 2973df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_bitcast: 2974df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_uitofp: 2975df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_sitofp: 2976df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_fptoui: 2977a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar case lltok::kw_fptosi: 2978df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_inttoptr: 2979f6f0bdfec336b596b095b4db8126149bbb33fec1Chris Lattner case lltok::kw_ptrtoint: return ParseCast(Inst, PFS, KeywordVal); 2980df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Other. 2981df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_select: return ParseSelect(Inst, PFS); 29820088a5cc722b9e32820d31c70175a7650ad4772dChris Lattner case lltok::kw_va_arg: return ParseVA_Arg(Inst, PFS); 2983df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_extractelement: return ParseExtractElement(Inst, PFS); 2984df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_insertelement: return ParseInsertElement(Inst, PFS); 2985df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_shufflevector: return ParseShuffleVector(Inst, PFS); 2986df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_phi: return ParsePHI(Inst, PFS); 2987df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_call: return ParseCall(Inst, PFS, false); 2988df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_tail: return ParseCall(Inst, PFS, true); 2989df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Memory. 299013ad5aaaff8a446758b402fd5e9aea22f5bc5682Victor Hernandez case lltok::kw_alloca: return ParseAlloc(Inst, PFS); 2991df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_load: return ParseLoad(Inst, PFS, false); 2992df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_store: return ParseStore(Inst, PFS, false); 2993df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_volatile: 29943ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (EatIfPresent(lltok::kw_load)) 2995df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return ParseLoad(Inst, PFS, true); 29963ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner else if (EatIfPresent(lltok::kw_store)) 2997df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return ParseStore(Inst, PFS, true); 29983ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner else 2999df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return TokError("expected 'load' or 'store'"); 3000df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_getelementptr: return ParseGetElementPtr(Inst, PFS); 3001df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_extractvalue: return ParseExtractValue(Inst, PFS); 3002df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_insertvalue: return ParseInsertValue(Inst, PFS); 3003df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3004df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3005df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3006df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseCmpPredicate - Parse an integer or fp predicate, based on Kind. 3007df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseCmpPredicate(unsigned &P, unsigned Opc) { 30087f6aa2b162e5daaf7b9ccf05d749597d3d7cf460Nick Lewycky if (Opc == Instruction::FCmp) { 3009df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Lex.getKind()) { 3010df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner default: TokError("expected fcmp predicate (e.g. 'oeq')"); 3011df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_oeq: P = CmpInst::FCMP_OEQ; break; 3012df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_one: P = CmpInst::FCMP_ONE; break; 3013df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_olt: P = CmpInst::FCMP_OLT; break; 3014df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ogt: P = CmpInst::FCMP_OGT; break; 3015df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ole: P = CmpInst::FCMP_OLE; break; 3016df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_oge: P = CmpInst::FCMP_OGE; break; 3017df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ord: P = CmpInst::FCMP_ORD; break; 3018df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_uno: P = CmpInst::FCMP_UNO; break; 3019df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ueq: P = CmpInst::FCMP_UEQ; break; 3020df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_une: P = CmpInst::FCMP_UNE; break; 3021df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ult: P = CmpInst::FCMP_ULT; break; 3022df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ugt: P = CmpInst::FCMP_UGT; break; 3023df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ule: P = CmpInst::FCMP_ULE; break; 3024df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_uge: P = CmpInst::FCMP_UGE; break; 3025df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_true: P = CmpInst::FCMP_TRUE; break; 3026df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_false: P = CmpInst::FCMP_FALSE; break; 3027df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3028df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else { 3029df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner switch (Lex.getKind()) { 3030df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner default: TokError("expected icmp predicate (e.g. 'eq')"); 3031df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_eq: P = CmpInst::ICMP_EQ; break; 3032df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ne: P = CmpInst::ICMP_NE; break; 3033df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_slt: P = CmpInst::ICMP_SLT; break; 3034df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_sgt: P = CmpInst::ICMP_SGT; break; 3035df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_sle: P = CmpInst::ICMP_SLE; break; 3036df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_sge: P = CmpInst::ICMP_SGE; break; 3037df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ult: P = CmpInst::ICMP_ULT; break; 3038df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ugt: P = CmpInst::ICMP_UGT; break; 3039df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_ule: P = CmpInst::ICMP_ULE; break; 3040df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner case lltok::kw_uge: P = CmpInst::ICMP_UGE; break; 3041df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3042df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3043df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); 3044df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3045df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3046df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3047df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 3048df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// Terminator Instructions. 3049df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 3050df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3051df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseRet - Parse a return instruction. 30523f3a0f6b498e80ffaeb83f03c8697e5d54fd9337Chris Lattner/// ::= 'ret' void (',' !dbg, !1)* 30533f3a0f6b498e80ffaeb83f03c8697e5d54fd9337Chris Lattner/// ::= 'ret' TypeAndValue (',' !dbg, !1)* 3054437544f25c1a6f6a00a2ed245c935088dbf9963dChris Lattnerbool LLParser::ParseRet(Instruction *&Inst, BasicBlock *BB, 3055f1bc7ce7b362d2859349c7a1e2bc6df493d0f809Chris Lattner PerFunctionState &PFS) { 30561d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder Ty(Type::getVoidTy(Context)); 3057a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner if (ParseType(Ty, true /*void allowed*/)) return true; 3058a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3059cf0fe8d813727383d630055bb9d1cde21b00b7e7Chris Lattner if (Ty->isVoidTy()) { 30601d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson Inst = ReturnInst::Create(Context); 3061df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3062df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3063a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3064df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *RV; 3065df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseValue(Ty, RV, PFS)) return true; 3066df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 30671d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson Inst = ReturnInst::Create(Context, RV); 3068437544f25c1a6f6a00a2ed245c935088dbf9963dChris Lattner return false; 3069df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3070df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3071df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3072df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseBr 3073df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'br' TypeAndValue 3074df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'br' TypeAndValue ',' TypeAndValue ',' TypeAndValue 3075df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseBr(Instruction *&Inst, PerFunctionState &PFS) { 3076df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc, Loc2; 3077f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner Value *Op0; 3078f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner BasicBlock *Op1, *Op2; 3079df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Op0, Loc, PFS)) return true; 3080a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3081df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (BasicBlock *BB = dyn_cast<BasicBlock>(Op0)) { 3082df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = BranchInst::Create(BB); 3083df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3084df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3085a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 30861d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson if (Op0->getType() != Type::getInt1Ty(Context)) 3087df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "branch condition must have 'i1' type"); 3088a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3089df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseToken(lltok::comma, "expected ',' after branch condition") || 3090f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner ParseTypeAndBasicBlock(Op1, Loc, PFS) || 3091df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after true destination") || 3092f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner ParseTypeAndBasicBlock(Op2, Loc2, PFS)) 3093df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3094a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3095f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner Inst = BranchInst::Create(Op1, Op2, Op0); 3096df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3097df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3098df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3099df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseSwitch 3100df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// Instruction 3101df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'switch' TypeAndValue ',' TypeAndValue '[' JumpTable ']' 3102df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// JumpTable 3103df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= (TypeAndValue ',' TypeAndValue)* 3104df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseSwitch(Instruction *&Inst, PerFunctionState &PFS) { 3105df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy CondLoc, BBLoc; 3106f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner Value *Cond; 3107f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner BasicBlock *DefaultBB; 3108df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Cond, CondLoc, PFS) || 3109df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after switch condition") || 3110f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner ParseTypeAndBasicBlock(DefaultBB, BBLoc, PFS) || 3111df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::lsquare, "expected '[' with switch table")) 3112df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3113df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 31141df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (!Cond->getType()->isIntegerTy()) 3115df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(CondLoc, "switch condition must have integer type"); 3116a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3117df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Parse the jump table pairs. 3118df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallPtrSet<Value*, 32> SeenCases; 3119df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<std::pair<ConstantInt*, BasicBlock*>, 32> Table; 3120df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner while (Lex.getKind() != lltok::rsquare) { 3121f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner Value *Constant; 3122f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner BasicBlock *DestBB; 3123a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3124df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Constant, CondLoc, PFS) || 3125df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after case value") || 3126f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner ParseTypeAndBasicBlock(DestBB, PFS)) 3127df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3128f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner 3129df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!SeenCases.insert(Constant)) 3130df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(CondLoc, "duplicate case value in switch"); 3131df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!isa<ConstantInt>(Constant)) 3132df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(CondLoc, "case value is not a constant integer"); 3133a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3134f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner Table.push_back(std::make_pair(cast<ConstantInt>(Constant), DestBB)); 3135df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3136a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3137df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Lex.Lex(); // Eat the ']'. 3138a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3139f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner SwitchInst *SI = SwitchInst::Create(Cond, DefaultBB, Table.size()); 3140df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 0, e = Table.size(); i != e; ++i) 3141df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SI->addCase(Table[i].first, Table[i].second); 3142df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = SI; 3143df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3144df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3145df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3146ab21db79ef1d2530880ad11f21f0b87ffca02dd4Chris Lattner/// ParseIndirectBr 3147f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner/// Instruction 3148ab21db79ef1d2530880ad11f21f0b87ffca02dd4Chris Lattner/// ::= 'indirectbr' TypeAndValue ',' '[' LabelList ']' 3149ab21db79ef1d2530880ad11f21f0b87ffca02dd4Chris Lattnerbool LLParser::ParseIndirectBr(Instruction *&Inst, PerFunctionState &PFS) { 3150f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner LocTy AddrLoc; 3151f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner Value *Address; 3152f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner if (ParseTypeAndValue(Address, AddrLoc, PFS) || 3153ab21db79ef1d2530880ad11f21f0b87ffca02dd4Chris Lattner ParseToken(lltok::comma, "expected ',' after indirectbr address") || 3154ab21db79ef1d2530880ad11f21f0b87ffca02dd4Chris Lattner ParseToken(lltok::lsquare, "expected '[' with indirectbr")) 3155f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner return true; 3156f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner 31571df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (!Address->getType()->isPointerTy()) 3158ab21db79ef1d2530880ad11f21f0b87ffca02dd4Chris Lattner return Error(AddrLoc, "indirectbr address must have pointer type"); 3159f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner 3160f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner // Parse the destination list. 3161f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner SmallVector<BasicBlock*, 16> DestList; 3162f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner 3163f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner if (Lex.getKind() != lltok::rsquare) { 3164f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner BasicBlock *DestBB; 3165f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner if (ParseTypeAndBasicBlock(DestBB, PFS)) 3166f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner return true; 3167f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner DestList.push_back(DestBB); 3168f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner 3169f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner while (EatIfPresent(lltok::comma)) { 3170f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner if (ParseTypeAndBasicBlock(DestBB, PFS)) 3171f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner return true; 3172f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner DestList.push_back(DestBB); 3173f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner } 3174f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner } 3175f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner 3176f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner if (ParseToken(lltok::rsquare, "expected ']' at end of block list")) 3177f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner return true; 3178f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner 3179ab21db79ef1d2530880ad11f21f0b87ffca02dd4Chris Lattner IndirectBrInst *IBI = IndirectBrInst::Create(Address, DestList.size()); 3180f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner for (unsigned i = 0, e = DestList.size(); i != e; ++i) 3181f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner IBI->addDestination(DestList[i]); 3182f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner Inst = IBI; 3183f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner return false; 3184f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner} 3185f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner 3186f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner 3187df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseInvoke 3188df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'invoke' OptionalCallingConv OptionalAttrs Type Value ParamList 3189df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// OptionalAttrs 'to' TypeAndValue 'unwind' TypeAndValue 3190df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseInvoke(Instruction *&Inst, PerFunctionState &PFS) { 3191df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy CallLoc = Lex.getLoc(); 319265c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel unsigned RetAttrs, FnAttrs; 319365c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel CallingConv::ID CC; 31941d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder RetType(Type::getVoidTy(Context)); 3195df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy RetTypeLoc; 3196df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ValID CalleeID; 3197df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<ParamInfo, 16> ArgList; 3198df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3199f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner BasicBlock *NormalBB, *UnwindBB; 3200df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseOptionalCallingConv(CC) || 3201df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalAttrs(RetAttrs, 1) || 3202a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner ParseType(RetType, RetTypeLoc, true /*void allowed*/) || 3203df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseValID(CalleeID) || 3204df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseParameterList(ArgList, PFS) || 3205df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalAttrs(FnAttrs, 2) || 3206df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::kw_to, "expected 'to' in invoke") || 3207f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner ParseTypeAndBasicBlock(NormalBB, PFS) || 3208df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::kw_unwind, "expected 'unwind' in invoke") || 3209f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner ParseTypeAndBasicBlock(UnwindBB, PFS)) 3210df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3211a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3212df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If RetType is a non-function pointer type, then this is the short syntax 3213df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // for the call, which means that RetType is just the return type. Infer the 3214df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // rest of the function argument types from the arguments that are present. 3215df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner const PointerType *PFTy = 0; 3216df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner const FunctionType *Ty = 0; 3217df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!(PFTy = dyn_cast<PointerType>(RetType)) || 3218df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) { 3219df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Pull out the types of all of the arguments... 3220df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::vector<const Type*> ParamTypes; 3221df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 0, e = ArgList.size(); i != e; ++i) 3222df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParamTypes.push_back(ArgList[i].V->getType()); 3223a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3224df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!FunctionType::isValidReturnType(RetType)) 3225df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(RetTypeLoc, "Invalid result type for LLVM function"); 3226a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3227debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson Ty = FunctionType::get(RetType, ParamTypes, false); 3228debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson PFTy = PointerType::getUnqual(Ty); 3229df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3230a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3231df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Look up the callee. 3232df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Callee; 323392f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez if (ConvertValIDToValue(PFTy, CalleeID, Callee, &PFS)) return true; 3234a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3235df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Set up the Attributes for the function. 3236df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<AttributeWithIndex, 8> Attrs; 3237df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (RetAttrs != Attribute::None) 3238df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Attrs.push_back(AttributeWithIndex::get(0, RetAttrs)); 3239a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3240df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<Value*, 8> Args; 3241a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3242df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Loop through FunctionType's arguments and ensure they are specified 3243df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // correctly. Also, gather any parameter attributes. 3244df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FunctionType::param_iterator I = Ty->param_begin(); 3245df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FunctionType::param_iterator E = Ty->param_end(); 3246df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { 3247df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner const Type *ExpectedTy = 0; 3248df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I != E) { 3249df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ExpectedTy = *I++; 3250df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else if (!Ty->isVarArg()) { 3251df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ArgList[i].Loc, "too many arguments specified"); 3252df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3253a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3254df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ExpectedTy && ExpectedTy != ArgList[i].V->getType()) 3255df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ArgList[i].Loc, "argument is not of expected type '" + 32560cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(ExpectedTy) + "'"); 3257df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Args.push_back(ArgList[i].V); 3258df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ArgList[i].Attrs != Attribute::None) 3259df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Attrs.push_back(AttributeWithIndex::get(i+1, ArgList[i].Attrs)); 3260df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3261a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3262df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I != E) 3263df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(CallLoc, "not enough parameters specified for call"); 3264a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3265df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FnAttrs != Attribute::None) 3266df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Attrs.push_back(AttributeWithIndex::get(~0, FnAttrs)); 3267a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3268df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Finish off the Attributes and check them 3269df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner AttrListPtr PAL = AttrListPtr::get(Attrs.begin(), Attrs.end()); 3270a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3271f9be95f867745b6754b2402b9b72f9eaeabd637fChris Lattner InvokeInst *II = InvokeInst::Create(Callee, NormalBB, UnwindBB, 3272df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Args.begin(), Args.end()); 3273df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner II->setCallingConv(CC); 3274df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner II->setAttributes(PAL); 3275df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = II; 3276df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3277df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3278df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3279df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3280df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3281df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 3282df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// Binary Operators. 3283df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 3284df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3285df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseArithmetic 3286e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner/// ::= ArithmeticOps TypeAndValue ',' Value 3287e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner/// 3288e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner/// If OperandType is 0, then any FP or integer operand is allowed. If it is 1, 3289e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner/// then any integer operand is allowed, if it is 2, any fp operand is allowed. 3290df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseArithmetic(Instruction *&Inst, PerFunctionState &PFS, 3291e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner unsigned Opc, unsigned OperandType) { 3292df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc; Value *LHS, *RHS; 3293df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(LHS, Loc, PFS) || 3294df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' in arithmetic operation") || 3295df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseValue(LHS->getType(), RHS, PFS)) 3296df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3297df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3298e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner bool Valid; 3299e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner switch (OperandType) { 3300c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown operand type!"); 3301e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner case 0: // int or FP. 3302b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands Valid = LHS->getType()->isIntOrIntVectorTy() || 3303b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands LHS->getType()->isFPOrFPVectorTy(); 3304e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner break; 3305b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands case 1: Valid = LHS->getType()->isIntOrIntVectorTy(); break; 3306b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands case 2: Valid = LHS->getType()->isFPOrFPVectorTy(); break; 3307e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner } 3308a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3309e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner if (!Valid) 3310e914b59c008745204c49fcf0751f9cc4d91f44bbChris Lattner return Error(Loc, "invalid operand type for instruction"); 3311a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3312df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS); 3313df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3314df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3315df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3316df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseLogical 3317df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= ArithmeticOps TypeAndValue ',' Value { 3318df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseLogical(Instruction *&Inst, PerFunctionState &PFS, 3319df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Opc) { 3320df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc; Value *LHS, *RHS; 3321df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(LHS, Loc, PFS) || 3322df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' in logical operation") || 3323df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseValue(LHS->getType(), RHS, PFS)) 3324df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3325df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3326b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands if (!LHS->getType()->isIntOrIntVectorTy()) 3327df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc,"instruction requires integer or integer vector operands"); 3328df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3329df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS); 3330df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3331df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3332df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3333df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3334df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseCompare 3335df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'icmp' IPredicates TypeAndValue ',' Value 3336df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'fcmp' FPredicates TypeAndValue ',' Value 3337df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseCompare(Instruction *&Inst, PerFunctionState &PFS, 3338df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Opc) { 3339df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Parse the integer/fp comparison predicate. 3340df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc; 3341df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Pred; 3342df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *LHS, *RHS; 3343df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseCmpPredicate(Pred, Opc) || 3344df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseTypeAndValue(LHS, Loc, PFS) || 3345df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after compare value") || 3346df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseValue(LHS->getType(), RHS, PFS)) 3347df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3348a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3349df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (Opc == Instruction::FCmp) { 3350b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands if (!LHS->getType()->isFPOrFPVectorTy()) 3351df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "fcmp requires floating point operands"); 33521c8a23c440b1665ba422778cdc74a0c59ecaf39eDan Gohman Inst = new FCmpInst(CmpInst::Predicate(Pred), LHS, RHS); 33537f6aa2b162e5daaf7b9ccf05d749597d3d7cf460Nick Lewycky } else { 33547f6aa2b162e5daaf7b9ccf05d749597d3d7cf460Nick Lewycky assert(Opc == Instruction::ICmp && "Unknown opcode for CmpInst!"); 3355b0bc6c361da9009e8414efde317d9bbff755f6c0Duncan Sands if (!LHS->getType()->isIntOrIntVectorTy() && 33561df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands !LHS->getType()->isPointerTy()) 3357df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "icmp requires integer operands"); 33581c8a23c440b1665ba422778cdc74a0c59ecaf39eDan Gohman Inst = new ICmpInst(CmpInst::Predicate(Pred), LHS, RHS); 3359df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3360df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3361df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3362df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3363df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 3364df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// Other Instructions. 3365df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 3366df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3367df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3368df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseCast 3369df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= CastOpc TypeAndValue 'to' Type 3370df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseCast(Instruction *&Inst, PerFunctionState &PFS, 3371df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Opc) { 3372df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc; Value *Op; 33731d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder DestTy(Type::getVoidTy(Context)); 3374df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Op, Loc, PFS) || 3375df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::kw_to, "expected 'to' after cast value") || 3376df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseType(DestTy)) 3377df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3378a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3379f6f0bdfec336b596b095b4db8126149bbb33fec1Chris Lattner if (!CastInst::castIsValid((Instruction::CastOps)Opc, Op, DestTy)) { 3380f6f0bdfec336b596b095b4db8126149bbb33fec1Chris Lattner CastInst::castIsValid((Instruction::CastOps)Opc, Op, DestTy); 3381df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "invalid cast opcode for cast from '" + 33820cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(Op->getType()) + "' to '" + 33830cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(DestTy) + "'"); 3384f6f0bdfec336b596b095b4db8126149bbb33fec1Chris Lattner } 3385df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = CastInst::Create((Instruction::CastOps)Opc, Op, DestTy); 3386df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3387df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3388df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3389df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseSelect 3390df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'select' TypeAndValue ',' TypeAndValue ',' TypeAndValue 3391df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseSelect(Instruction *&Inst, PerFunctionState &PFS) { 3392df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc; 3393df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Op0, *Op1, *Op2; 3394df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Op0, Loc, PFS) || 3395df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after select condition") || 3396df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseTypeAndValue(Op1, PFS) || 3397df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after select value") || 3398df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseTypeAndValue(Op2, PFS)) 3399df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3400a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3401df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (const char *Reason = SelectInst::areInvalidOperands(Op0, Op1, Op2)) 3402df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, Reason); 3403a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3404df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = SelectInst::Create(Op0, Op1, Op2); 3405df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3406df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3407df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 34080088a5cc722b9e32820d31c70175a7650ad4772dChris Lattner/// ParseVA_Arg 34090088a5cc722b9e32820d31c70175a7650ad4772dChris Lattner/// ::= 'va_arg' TypeAndValue ',' Type 34100088a5cc722b9e32820d31c70175a7650ad4772dChris Lattnerbool LLParser::ParseVA_Arg(Instruction *&Inst, PerFunctionState &PFS) { 3411df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Op; 34121d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder EltTy(Type::getVoidTy(Context)); 34130088a5cc722b9e32820d31c70175a7650ad4772dChris Lattner LocTy TypeLoc; 3414df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Op, PFS) || 3415df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after vaarg operand") || 34160088a5cc722b9e32820d31c70175a7650ad4772dChris Lattner ParseType(EltTy, TypeLoc)) 3417df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3418a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 34190088a5cc722b9e32820d31c70175a7650ad4772dChris Lattner if (!EltTy->isFirstClassType()) 34200088a5cc722b9e32820d31c70175a7650ad4772dChris Lattner return Error(TypeLoc, "va_arg requires operand with first class type"); 3421df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3422df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = new VAArgInst(Op, EltTy); 3423df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3424df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3425df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3426df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseExtractElement 3427df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'extractelement' TypeAndValue ',' TypeAndValue 3428df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseExtractElement(Instruction *&Inst, PerFunctionState &PFS) { 3429df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc; 3430df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Op0, *Op1; 3431df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Op0, Loc, PFS) || 3432df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after extract value") || 3433df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseTypeAndValue(Op1, PFS)) 3434df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3435a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3436df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ExtractElementInst::isValidOperands(Op0, Op1)) 3437df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "invalid extractelement operands"); 3438a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3439a3500da5592aee83675d6714d4f1e9d5ad96d1f2Eric Christopher Inst = ExtractElementInst::Create(Op0, Op1); 3440df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3441df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3442df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3443df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseInsertElement 3444df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'insertelement' TypeAndValue ',' TypeAndValue ',' TypeAndValue 3445df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseInsertElement(Instruction *&Inst, PerFunctionState &PFS) { 3446df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc; 3447df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Op0, *Op1, *Op2; 3448df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Op0, Loc, PFS) || 3449df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after insertelement value") || 3450df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseTypeAndValue(Op1, PFS) || 3451df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after insertelement value") || 3452df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseTypeAndValue(Op2, PFS)) 3453df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3454a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3455df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!InsertElementInst::isValidOperands(Op0, Op1, Op2)) 34560aaf4e91c2961585c160af0cc87f040301aafbd2Eric Christopher return Error(Loc, "invalid insertelement operands"); 3457a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3458df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = InsertElementInst::Create(Op0, Op1, Op2); 3459df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3460df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3461df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3462df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseShuffleVector 3463df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'shufflevector' TypeAndValue ',' TypeAndValue ',' TypeAndValue 3464df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseShuffleVector(Instruction *&Inst, PerFunctionState &PFS) { 3465df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy Loc; 3466df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Op0, *Op1, *Op2; 3467df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Op0, Loc, PFS) || 3468df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after shuffle mask") || 3469df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseTypeAndValue(Op1, PFS) || 3470df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after shuffle value") || 3471df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseTypeAndValue(Op2, PFS)) 3472df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3473a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3474df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ShuffleVectorInst::isValidOperands(Op0, Op1, Op2)) 3475df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "invalid extractelement operands"); 3476a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3477df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = new ShuffleVectorInst(Op0, Op1, Op2); 3478df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3479df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3480df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3481df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParsePHI 3482c6e200960812992f1124c92f801166bd1b387971Chris Lattner/// ::= 'phi' Type '[' Value ',' Value ']' (',' '[' Value ',' Value ']')* 3483a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattnerint LLParser::ParsePHI(Instruction *&Inst, PerFunctionState &PFS) { 34841d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder Ty(Type::getVoidTy(Context)); 3485df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Op0, *Op1; 3486df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy TypeLoc = Lex.getLoc(); 3487a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3488df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseType(Ty) || 3489df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::lsquare, "expected '[' in phi value list") || 3490df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseValue(Ty, Op0, PFS) || 3491df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after insertelement value") || 34921d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson ParseValue(Type::getLabelTy(Context), Op1, PFS) || 3493df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rsquare, "expected ']' in phi value list")) 3494df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3495a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3496a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner bool AteExtraComma = false; 3497df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<std::pair<Value*, BasicBlock*>, 16> PHIVals; 3498df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner while (1) { 3499df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner PHIVals.push_back(std::make_pair(Op0, cast<BasicBlock>(Op1))); 3500a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 35013ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (!EatIfPresent(lltok::comma)) 3502df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner break; 3503df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3504a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner if (Lex.getKind() == lltok::MetadataVar) { 3505a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner AteExtraComma = true; 3506a43d46f523dff4b784ee28a3b196a065a15d90f2Devang Patel break; 3507a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner } 3508a43d46f523dff4b784ee28a3b196a065a15d90f2Devang Patel 35093ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseToken(lltok::lsquare, "expected '[' in phi value list") || 3510df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseValue(Ty, Op0, PFS) || 3511df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after insertelement value") || 35121d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson ParseValue(Type::getLabelTy(Context), Op1, PFS) || 3513df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::rsquare, "expected ']' in phi value list")) 3514df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3515df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3516a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3517df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!Ty->isFirstClassType()) 3518df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(TypeLoc, "phi node must have first class type"); 3519df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 35203ecfc861b4365f341c5c969b40e1afccde676e6fJay Foad PHINode *PN = PHINode::Create(Ty, PHIVals.size()); 3521df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 0, e = PHIVals.size(); i != e; ++i) 3522df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner PN->addIncoming(PHIVals[i].first, PHIVals[i].second); 3523df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = PN; 3524a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner return AteExtraComma ? InstExtraComma : InstNormal; 3525df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3526df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3527df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseCall 3528df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'tail'? 'call' OptionalCallingConv OptionalAttrs Type Value 3529df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParameterList OptionalAttrs 3530df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattnerbool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS, 3531df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner bool isTail) { 353265c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel unsigned RetAttrs, FnAttrs; 353365c3c8f323198b99b88b109654194540cf9b3fa5Sandeep Patel CallingConv::ID CC; 35341d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder RetType(Type::getVoidTy(Context)); 3535df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy RetTypeLoc; 3536df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ValID CalleeID; 3537df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<ParamInfo, 16> ArgList; 3538df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner LocTy CallLoc = Lex.getLoc(); 3539a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3540df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if ((isTail && ParseToken(lltok::kw_call, "expected 'tail call'")) || 3541df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalCallingConv(CC) || 3542df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalAttrs(RetAttrs, 1) || 3543a9a9e07d1c5d3c73835e716d81c2ec94ad0b865fChris Lattner ParseType(RetType, RetTypeLoc, true /*void allowed*/) || 3544df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseValID(CalleeID) || 3545df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseParameterList(ArgList, PFS) || 3546df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseOptionalAttrs(FnAttrs, 2)) 3547df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3548a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3549df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // If RetType is a non-function pointer type, then this is the short syntax 3550df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // for the call, which means that RetType is just the return type. Infer the 3551df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // rest of the function argument types from the arguments that are present. 3552df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner const PointerType *PFTy = 0; 3553df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner const FunctionType *Ty = 0; 3554df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!(PFTy = dyn_cast<PointerType>(RetType)) || 3555df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) { 3556df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Pull out the types of all of the arguments... 3557df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner std::vector<const Type*> ParamTypes; 355883b4a97060c2c0a2ab08b8755c8f0915c49fd0cbEli Friedman for (unsigned i = 0, e = ArgList.size(); i != e; ++i) 355983b4a97060c2c0a2ab08b8755c8f0915c49fd0cbEli Friedman ParamTypes.push_back(ArgList[i].V->getType()); 3560a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3561df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!FunctionType::isValidReturnType(RetType)) 3562df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(RetTypeLoc, "Invalid result type for LLVM function"); 3563a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3564debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson Ty = FunctionType::get(RetType, ParamTypes, false); 3565debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson PFTy = PointerType::getUnqual(Ty); 3566df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3567a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3568df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Look up the callee. 3569df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Callee; 357092f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez if (ConvertValIDToValue(PFTy, CalleeID, Callee, &PFS)) return true; 3571a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3572df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Set up the Attributes for the function. 3573df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<AttributeWithIndex, 8> Attrs; 3574df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (RetAttrs != Attribute::None) 3575df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Attrs.push_back(AttributeWithIndex::get(0, RetAttrs)); 3576a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3577df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<Value*, 8> Args; 3578a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3579df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Loop through FunctionType's arguments and ensure they are specified 3580df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // correctly. Also, gather any parameter attributes. 3581df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FunctionType::param_iterator I = Ty->param_begin(); 3582df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner FunctionType::param_iterator E = Ty->param_end(); 3583df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { 3584df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner const Type *ExpectedTy = 0; 3585df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I != E) { 3586df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ExpectedTy = *I++; 3587df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } else if (!Ty->isVarArg()) { 3588df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ArgList[i].Loc, "too many arguments specified"); 3589df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3590a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3591df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ExpectedTy && ExpectedTy != ArgList[i].V->getType()) 3592df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(ArgList[i].Loc, "argument is not of expected type '" + 35930cd0d881604775f3f97048645f040b2ef4f61e4bChris Lattner getTypeString(ExpectedTy) + "'"); 3594df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Args.push_back(ArgList[i].V); 3595df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ArgList[i].Attrs != Attribute::None) 3596df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Attrs.push_back(AttributeWithIndex::get(i+1, ArgList[i].Attrs)); 3597df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3598a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3599df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (I != E) 3600df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(CallLoc, "not enough parameters specified for call"); 3601df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3602df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (FnAttrs != Attribute::None) 3603df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Attrs.push_back(AttributeWithIndex::get(~0, FnAttrs)); 3604df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3605df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner // Finish off the Attributes and check them 3606df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner AttrListPtr PAL = AttrListPtr::get(Attrs.begin(), Attrs.end()); 3607a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3608df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner CallInst *CI = CallInst::Create(Callee, Args.begin(), Args.end()); 3609df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner CI->setTailCall(isTail); 3610df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner CI->setCallingConv(CC); 3611df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner CI->setAttributes(PAL); 3612df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = CI; 3613df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return false; 3614df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3615df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3616df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 3617df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner// Memory Instructions. 3618df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner//===----------------------------------------------------------------------===// 3619df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3620df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseAlloc 3621f633a065de959b32892c51d741d4db010c5d25b1Devang Patel/// ::= 'alloca' Type (',' TypeAndValue)? (',' OptionalInfo)? 3622f3a789d931de6b5be729c33ff476fb20f0badbb1Chris Lattnerint LLParser::ParseAlloc(Instruction *&Inst, PerFunctionState &PFS) { 36231d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson PATypeHolder Ty(Type::getVoidTy(Context)); 3624df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Size = 0; 3625eeb4a84ac8d91fb1d5a7c484a1c7047409faee30Chris Lattner LocTy SizeLoc; 3626df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner unsigned Alignment = 0; 36273ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseType(Ty)) return true; 3628df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3629c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner bool AteExtraComma = false; 36303ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (EatIfPresent(lltok::comma)) { 3631c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner if (Lex.getKind() == lltok::kw_align) { 3632c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner if (ParseOptionalAlignment(Alignment)) return true; 3633c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner } else if (Lex.getKind() == lltok::MetadataVar) { 3634c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner AteExtraComma = true; 3635f633a065de959b32892c51d741d4db010c5d25b1Devang Patel } else { 3636c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner if (ParseTypeAndValue(Size, SizeLoc, PFS) || 3637c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner ParseOptionalCommaAlign(Alignment, AteExtraComma)) 3638c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner return true; 3639df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3640df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3641df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3642f75a7d3fbf7fbb3071f45e248d3fb93312ec4fbdDan Gohman if (Size && !Size->getType()->isIntegerTy()) 3643f75a7d3fbf7fbb3071f45e248d3fb93312ec4fbdDan Gohman return Error(SizeLoc, "element count must have integer type"); 3644df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3645f3a789d931de6b5be729c33ff476fb20f0badbb1Chris Lattner Inst = new AllocaInst(Ty, Size, Alignment); 3646f3a789d931de6b5be729c33ff476fb20f0badbb1Chris Lattner return AteExtraComma ? InstExtraComma : InstNormal; 3647df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3648df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3649df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseLoad 3650f633a065de959b32892c51d741d4db010c5d25b1Devang Patel/// ::= 'volatile'? 'load' TypeAndValue (',' OptionalInfo)? 3651c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattnerint LLParser::ParseLoad(Instruction *&Inst, PerFunctionState &PFS, 3652c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner bool isVolatile) { 3653df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Val; LocTy Loc; 3654f633a065de959b32892c51d741d4db010c5d25b1Devang Patel unsigned Alignment = 0; 3655c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner bool AteExtraComma = false; 3656c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner if (ParseTypeAndValue(Val, Loc, PFS) || 3657c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner ParseOptionalCommaAlign(Alignment, AteExtraComma)) 3658c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner return true; 3659df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 36601df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (!Val->getType()->isPointerTy() || 3661df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner !cast<PointerType>(Val->getType())->getElementType()->isFirstClassType()) 3662df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "load operand must be a pointer to a first class type"); 3663a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3664df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = new LoadInst(Val, "", isVolatile, Alignment); 3665c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner return AteExtraComma ? InstExtraComma : InstNormal; 3666df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3667df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3668df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseStore 3669a119de86a064414622562cfe32953de7f9b0ee40Dan Gohman/// ::= 'volatile'? 'store' TypeAndValue ',' TypeAndValue (',' 'align' i32)? 3670c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattnerint LLParser::ParseStore(Instruction *&Inst, PerFunctionState &PFS, 3671c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner bool isVolatile) { 3672df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Val, *Ptr; LocTy Loc, PtrLoc; 3673f633a065de959b32892c51d741d4db010c5d25b1Devang Patel unsigned Alignment = 0; 3674c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner bool AteExtraComma = false; 3675df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Val, Loc, PFS) || 3676df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected ',' after store operand") || 3677c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner ParseTypeAndValue(Ptr, PtrLoc, PFS) || 3678c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner ParseOptionalCommaAlign(Alignment, AteExtraComma)) 3679df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3680f633a065de959b32892c51d741d4db010c5d25b1Devang Patel 36811df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (!Ptr->getType()->isPointerTy()) 3682df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(PtrLoc, "store operand must be a pointer"); 3683df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!Val->getType()->isFirstClassType()) 3684df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "store operand must be a first class value"); 3685df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (cast<PointerType>(Ptr->getType())->getElementType() != Val->getType()) 3686df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "stored value and pointer type do not match"); 3687a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3688df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = new StoreInst(Val, Ptr, isVolatile, Alignment); 3689c3a6c5c83b5fa7b813de1741ac9e9be702b03846Chris Lattner return AteExtraComma ? InstExtraComma : InstNormal; 3690df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3691df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3692df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseGetElementPtr 3693dd8004dc73d091ccb3927dbbc3b41639a3738ae3Dan Gohman/// ::= 'getelementptr' 'inbounds'? TypeAndValue (',' TypeAndValue)* 3694a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattnerint LLParser::ParseGetElementPtr(Instruction *&Inst, PerFunctionState &PFS) { 3695df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Ptr, *Val; LocTy Loc, EltLoc; 3696dd8004dc73d091ccb3927dbbc3b41639a3738ae3Dan Gohman 3697dcb40a3c1c747c88c4e634e34d1b4d7533a86adaDan Gohman bool InBounds = EatIfPresent(lltok::kw_inbounds); 3698dd8004dc73d091ccb3927dbbc3b41639a3738ae3Dan Gohman 36993ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseTypeAndValue(Ptr, Loc, PFS)) return true; 3700a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 37011df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (!Ptr->getType()->isPointerTy()) 3702df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "base of getelementptr must be a pointer"); 3703a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3704df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<Value*, 16> Indices; 3705a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner bool AteExtraComma = false; 37063ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner while (EatIfPresent(lltok::comma)) { 3707a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner if (Lex.getKind() == lltok::MetadataVar) { 3708a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner AteExtraComma = true; 37096225d64ba244cdf4af3c44e113fc8c589fa39508Devang Patel break; 3710a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner } 37113ed88efb03c63aae5542efcdfc5cedec9bc4c18aChris Lattner if (ParseTypeAndValue(Val, EltLoc, PFS)) return true; 37121df9859c40492511b8aa4321eb76496005d3b75bDuncan Sands if (!Val->getType()->isIntegerTy()) 3713df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(EltLoc, "getelementptr index must be an integer"); 3714df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Indices.push_back(Val); 3715df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner } 3716a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3717df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!GetElementPtrInst::getIndexedType(Ptr->getType(), 3718df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Indices.begin(), Indices.end())) 3719df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "invalid getelementptr indices"); 3720df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = GetElementPtrInst::Create(Ptr, Indices.begin(), Indices.end()); 3721dd8004dc73d091ccb3927dbbc3b41639a3738ae3Dan Gohman if (InBounds) 3722f8dbee7cea072eb63ae343759975109553697bcbDan Gohman cast<GetElementPtrInst>(Inst)->setIsInBounds(true); 3723a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner return AteExtraComma ? InstExtraComma : InstNormal; 3724df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3725df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3726df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseExtractValue 3727df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'extractvalue' TypeAndValue (',' uint32)+ 3728a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattnerint LLParser::ParseExtractValue(Instruction *&Inst, PerFunctionState &PFS) { 3729df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Val; LocTy Loc; 3730df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<unsigned, 4> Indices; 3731a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner bool AteExtraComma; 3732df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Val, Loc, PFS) || 3733a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner ParseIndexList(Indices, AteExtraComma)) 3734df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3735df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3736fdfeb6976f07ad10d809b922ed7376ba2a3539beChris Lattner if (!Val->getType()->isAggregateType()) 3737fdfeb6976f07ad10d809b922ed7376ba2a3539beChris Lattner return Error(Loc, "extractvalue operand must be aggregate type"); 3738df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3739df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ExtractValueInst::getIndexedType(Val->getType(), Indices.begin(), 3740df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Indices.end())) 3741df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc, "invalid indices for extractvalue"); 3742df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = ExtractValueInst::Create(Val, Indices.begin(), Indices.end()); 3743a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner return AteExtraComma ? InstExtraComma : InstNormal; 3744df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 3745df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner 3746df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ParseInsertValue 3747df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner/// ::= 'insertvalue' TypeAndValue ',' TypeAndValue (',' uint32)+ 3748a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattnerint LLParser::ParseInsertValue(Instruction *&Inst, PerFunctionState &PFS) { 3749df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Value *Val0, *Val1; LocTy Loc0, Loc1; 3750df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner SmallVector<unsigned, 4> Indices; 3751a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner bool AteExtraComma; 3752df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (ParseTypeAndValue(Val0, Loc0, PFS) || 3753df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseToken(lltok::comma, "expected comma after insertvalue operand") || 3754df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner ParseTypeAndValue(Val1, Loc1, PFS) || 3755a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner ParseIndexList(Indices, AteExtraComma)) 3756df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return true; 3757628c13ad76fb4b7ce2f105c0e92644d1c39ee2f8Chris Lattner 3758fdfeb6976f07ad10d809b922ed7376ba2a3539beChris Lattner if (!Val0->getType()->isAggregateType()) 3759fdfeb6976f07ad10d809b922ed7376ba2a3539beChris Lattner return Error(Loc0, "insertvalue operand must be aggregate type"); 3760a279bc3da55691784064cb47200a1c584408b8abDaniel Dunbar 3761df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner if (!ExtractValueInst::getIndexedType(Val0->getType(), Indices.begin(), 3762df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Indices.end())) 3763df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner return Error(Loc0, "invalid indices for insertvalue"); 3764df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner Inst = InsertValueInst::Create(Val0, Val1, Indices.begin(), Indices.end()); 3765a7d7f2c0239ecc8513461ec69c8b922698ce5fe0Chris Lattner return AteExtraComma ? InstExtraComma : InstNormal; 3766df98617b23315e427cc4fad8ccfdd50d68bec2f9Chris Lattner} 376721cc4460efa104e8591b05a90f20130291614344Nick Lewycky 376821cc4460efa104e8591b05a90f20130291614344Nick Lewycky//===----------------------------------------------------------------------===// 376921cc4460efa104e8591b05a90f20130291614344Nick Lewycky// Embedded metadata. 377021cc4460efa104e8591b05a90f20130291614344Nick Lewycky//===----------------------------------------------------------------------===// 377121cc4460efa104e8591b05a90f20130291614344Nick Lewycky 377221cc4460efa104e8591b05a90f20130291614344Nick Lewycky/// ParseMDNodeVector 3773cb33799b9f4e152e3460faa83e59b53ff604c87dNick Lewycky/// ::= Element (',' Element)* 3774cb33799b9f4e152e3460faa83e59b53ff604c87dNick Lewycky/// Element 3775cb33799b9f4e152e3460faa83e59b53ff604c87dNick Lewycky/// ::= 'null' | TypeAndValue 3776bf170d4c2ffd9dc99fad1fabfbf1f90f980a9782Victor Hernandezbool LLParser::ParseMDNodeVector(SmallVectorImpl<Value*> &Elts, 377724e64df7ec25b55aa872c2ef33728dfbb8c353c4Victor Hernandez PerFunctionState *PFS) { 3778ac80975ea4103fcceab38cde69d98d3fb3b01db4Dan Gohman // Check for an empty list. 3779ac80975ea4103fcceab38cde69d98d3fb3b01db4Dan Gohman if (Lex.getKind() == lltok::rbrace) 3780ac80975ea4103fcceab38cde69d98d3fb3b01db4Dan Gohman return false; 3781ac80975ea4103fcceab38cde69d98d3fb3b01db4Dan Gohman 378221cc4460efa104e8591b05a90f20130291614344Nick Lewycky do { 3783a73523958d39ca10a322fd8b177104ebc2045130Chris Lattner // Null is a special case since it is typeless. 3784a73523958d39ca10a322fd8b177104ebc2045130Chris Lattner if (EatIfPresent(lltok::kw_null)) { 3785a73523958d39ca10a322fd8b177104ebc2045130Chris Lattner Elts.push_back(0); 3786a73523958d39ca10a322fd8b177104ebc2045130Chris Lattner continue; 3787cb33799b9f4e152e3460faa83e59b53ff604c87dNick Lewycky } 3788a73523958d39ca10a322fd8b177104ebc2045130Chris Lattner 3789a73523958d39ca10a322fd8b177104ebc2045130Chris Lattner Value *V = 0; 3790a73523958d39ca10a322fd8b177104ebc2045130Chris Lattner PATypeHolder Ty(Type::getVoidTy(Context)); 3791a73523958d39ca10a322fd8b177104ebc2045130Chris Lattner ValID ID; 3792bf170d4c2ffd9dc99fad1fabfbf1f90f980a9782Victor Hernandez if (ParseType(Ty) || ParseValID(ID, PFS) || 379392f238dd8fe19b26103bd451c571281d9b7ad324Victor Hernandez ConvertValIDToValue(Ty, ID, V, PFS)) 3794a73523958d39ca10a322fd8b177104ebc2045130Chris Lattner return true; 3795a73523958d39ca10a322fd8b177104ebc2045130Chris Lattner 3796cb33799b9f4e152e3460faa83e59b53ff604c87dNick Lewycky Elts.push_back(V); 379721cc4460efa104e8591b05a90f20130291614344Nick Lewycky } while (EatIfPresent(lltok::comma)); 379821cc4460efa104e8591b05a90f20130291614344Nick Lewycky 379921cc4460efa104e8591b05a90f20130291614344Nick Lewycky return false; 380021cc4460efa104e8591b05a90f20130291614344Nick Lewycky} 3801