1 //===-- LLParser.cpp - Parser Class ---------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the parser class for .ll files.
12 //===----------------------------------------------------------------------===//
15 #include "llvm/AutoUpgrade.h"
16 #include "llvm/CallingConv.h"
17 #include "llvm/Constants.h"
18 #include "llvm/DerivedTypes.h"
19 #include "llvm/InlineAsm.h"
20 #include "llvm/Instructions.h"
21 #include "llvm/Module.h"
22 #include "llvm/Operator.h"
23 #include "llvm/ValueSymbolTable.h"
24 #include "llvm/ADT/SmallPtrSet.h"
25 #include "llvm/ADT/StringExtras.h"
26 #include "llvm/Support/ErrorHandling.h"
27 #include "llvm/Support/raw_ostream.h"
30 /// Run: module ::= toplevelentity*
31 bool LLParser::Run() {
35 return ParseTopLevelEntities() ||
36 ValidateEndOfModule();
39 /// ValidateEndOfModule - Do final validity and sanity checks at the end of the
41 bool LLParser::ValidateEndOfModule() {
42 // Update auto-upgraded malloc calls to "malloc".
43 // FIXME: Remove in LLVM 3.0.
45 MallocF->setName("malloc");
46 // If setName() does not set the name to "malloc", then there is already a
47 // declaration of "malloc". In that case, iterate over all calls to MallocF
48 // and get them to call the declared "malloc" instead.
49 if (MallocF->getName() != "malloc") {
50 Constant *RealMallocF = M->getFunction("malloc");
51 if (RealMallocF->getType() != MallocF->getType())
52 RealMallocF = ConstantExpr::getBitCast(RealMallocF, MallocF->getType());
53 MallocF->replaceAllUsesWith(RealMallocF);
54 MallocF->eraseFromParent();
60 // If there are entries in ForwardRefBlockAddresses at this point, they are
61 // references after the function was defined. Resolve those now.
62 while (!ForwardRefBlockAddresses.empty()) {
63 // Okay, we are referencing an already-parsed function, resolve them now.
65 const ValID &Fn = ForwardRefBlockAddresses.begin()->first;
66 if (Fn.Kind == ValID::t_GlobalName)
67 TheFn = M->getFunction(Fn.StrVal);
68 else if (Fn.UIntVal < NumberedVals.size())
69 TheFn = dyn_cast<Function>(NumberedVals[Fn.UIntVal]);
72 return Error(Fn.Loc, "unknown function referenced by blockaddress");
74 // Resolve all these references.
75 if (ResolveForwardRefBlockAddresses(TheFn,
76 ForwardRefBlockAddresses.begin()->second,
80 ForwardRefBlockAddresses.erase(ForwardRefBlockAddresses.begin());
84 if (!ForwardRefTypes.empty())
85 return Error(ForwardRefTypes.begin()->second.second,
86 "use of undefined type named '" +
87 ForwardRefTypes.begin()->first + "'");
88 if (!ForwardRefTypeIDs.empty())
89 return Error(ForwardRefTypeIDs.begin()->second.second,
90 "use of undefined type '%" +
91 utostr(ForwardRefTypeIDs.begin()->first) + "'");
93 if (!ForwardRefVals.empty())
94 return Error(ForwardRefVals.begin()->second.second,
95 "use of undefined value '@" + ForwardRefVals.begin()->first +
98 if (!ForwardRefValIDs.empty())
99 return Error(ForwardRefValIDs.begin()->second.second,
100 "use of undefined value '@" +
101 utostr(ForwardRefValIDs.begin()->first) + "'");
103 if (!ForwardRefMDNodes.empty())
104 return Error(ForwardRefMDNodes.begin()->second.second,
105 "use of undefined metadata '!" +
106 utostr(ForwardRefMDNodes.begin()->first) + "'");
109 // Look for intrinsic functions and CallInst that need to be upgraded
110 for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; )
111 UpgradeCallsToIntrinsic(FI++); // must be post-increment, as we remove
113 // Check debug info intrinsics.
114 CheckDebugInfoIntrinsics(M);
118 bool LLParser::ResolveForwardRefBlockAddresses(Function *TheFn,
119 std::vector<std::pair<ValID, GlobalValue*> > &Refs,
120 PerFunctionState *PFS) {
121 // Loop over all the references, resolving them.
122 for (unsigned i = 0, e = Refs.size(); i != e; ++i) {
125 if (Refs[i].first.Kind == ValID::t_LocalName)
126 Res = PFS->GetBB(Refs[i].first.StrVal, Refs[i].first.Loc);
128 Res = PFS->GetBB(Refs[i].first.UIntVal, Refs[i].first.Loc);
129 } else if (Refs[i].first.Kind == ValID::t_LocalID) {
130 return Error(Refs[i].first.Loc,
131 "cannot take address of numeric label after the function is defined");
133 Res = dyn_cast_or_null<BasicBlock>(
134 TheFn->getValueSymbolTable().lookup(Refs[i].first.StrVal));
138 return Error(Refs[i].first.Loc,
139 "referenced value is not a basic block");
141 // Get the BlockAddress for this and update references to use it.
142 BlockAddress *BA = BlockAddress::get(TheFn, Res);
143 Refs[i].second->replaceAllUsesWith(BA);
144 Refs[i].second->eraseFromParent();
150 //===----------------------------------------------------------------------===//
151 // Top-Level Entities
152 //===----------------------------------------------------------------------===//
154 bool LLParser::ParseTopLevelEntities() {
156 switch (Lex.getKind()) {
157 default: return TokError("expected top-level entity");
158 case lltok::Eof: return false;
159 //case lltok::kw_define:
160 case lltok::kw_declare: if (ParseDeclare()) return true; break;
161 case lltok::kw_define: if (ParseDefine()) return true; break;
162 case lltok::kw_module: if (ParseModuleAsm()) return true; break;
163 case lltok::kw_target: if (ParseTargetDefinition()) return true; break;
164 case lltok::kw_deplibs: if (ParseDepLibs()) return true; break;
165 case lltok::kw_type: if (ParseUnnamedType()) return true; break;
166 case lltok::LocalVarID: if (ParseUnnamedType()) return true; break;
167 case lltok::StringConstant: // FIXME: REMOVE IN LLVM 3.0
168 case lltok::LocalVar: if (ParseNamedType()) return true; break;
169 case lltok::GlobalID: if (ParseUnnamedGlobal()) return true; break;
170 case lltok::GlobalVar: if (ParseNamedGlobal()) return true; break;
171 case lltok::exclaim: if (ParseStandaloneMetadata()) return true; break;
172 case lltok::MetadataVar: if (ParseNamedMetadata()) return true; break;
174 // The Global variable production with no name can have many different
175 // optional leading prefixes, the production is:
176 // GlobalVar ::= OptionalLinkage OptionalVisibility OptionalThreadLocal
177 // OptionalAddrSpace ('constant'|'global') ...
178 case lltok::kw_private : // OptionalLinkage
179 case lltok::kw_linker_private: // OptionalLinkage
180 case lltok::kw_internal: // OptionalLinkage
181 case lltok::kw_weak: // OptionalLinkage
182 case lltok::kw_weak_odr: // OptionalLinkage
183 case lltok::kw_linkonce: // OptionalLinkage
184 case lltok::kw_linkonce_odr: // OptionalLinkage
185 case lltok::kw_appending: // OptionalLinkage
186 case lltok::kw_dllexport: // OptionalLinkage
187 case lltok::kw_common: // OptionalLinkage
188 case lltok::kw_dllimport: // OptionalLinkage
189 case lltok::kw_extern_weak: // OptionalLinkage
190 case lltok::kw_external: { // OptionalLinkage
191 unsigned Linkage, Visibility;
192 if (ParseOptionalLinkage(Linkage) ||
193 ParseOptionalVisibility(Visibility) ||
194 ParseGlobal("", SMLoc(), Linkage, true, Visibility))
198 case lltok::kw_default: // OptionalVisibility
199 case lltok::kw_hidden: // OptionalVisibility
200 case lltok::kw_protected: { // OptionalVisibility
202 if (ParseOptionalVisibility(Visibility) ||
203 ParseGlobal("", SMLoc(), 0, false, Visibility))
208 case lltok::kw_thread_local: // OptionalThreadLocal
209 case lltok::kw_addrspace: // OptionalAddrSpace
210 case lltok::kw_constant: // GlobalType
211 case lltok::kw_global: // GlobalType
212 if (ParseGlobal("", SMLoc(), 0, false, 0)) return true;
220 /// ::= 'module' 'asm' STRINGCONSTANT
221 bool LLParser::ParseModuleAsm() {
222 assert(Lex.getKind() == lltok::kw_module);
226 if (ParseToken(lltok::kw_asm, "expected 'module asm'") ||
227 ParseStringConstant(AsmStr)) return true;
229 const std::string &AsmSoFar = M->getModuleInlineAsm();
230 if (AsmSoFar.empty())
231 M->setModuleInlineAsm(AsmStr);
233 M->setModuleInlineAsm(AsmSoFar+"\n"+AsmStr);
238 /// ::= 'target' 'triple' '=' STRINGCONSTANT
239 /// ::= 'target' 'datalayout' '=' STRINGCONSTANT
240 bool LLParser::ParseTargetDefinition() {
241 assert(Lex.getKind() == lltok::kw_target);
244 default: return TokError("unknown target property");
245 case lltok::kw_triple:
247 if (ParseToken(lltok::equal, "expected '=' after target triple") ||
248 ParseStringConstant(Str))
250 M->setTargetTriple(Str);
252 case lltok::kw_datalayout:
254 if (ParseToken(lltok::equal, "expected '=' after target datalayout") ||
255 ParseStringConstant(Str))
257 M->setDataLayout(Str);
263 /// ::= 'deplibs' '=' '[' ']'
264 /// ::= 'deplibs' '=' '[' STRINGCONSTANT (',' STRINGCONSTANT)* ']'
265 bool LLParser::ParseDepLibs() {
266 assert(Lex.getKind() == lltok::kw_deplibs);
268 if (ParseToken(lltok::equal, "expected '=' after deplibs") ||
269 ParseToken(lltok::lsquare, "expected '=' after deplibs"))
272 if (EatIfPresent(lltok::rsquare))
276 if (ParseStringConstant(Str)) return true;
279 while (EatIfPresent(lltok::comma)) {
280 if (ParseStringConstant(Str)) return true;
284 return ParseToken(lltok::rsquare, "expected ']' at end of list");
287 /// ParseUnnamedType:
289 /// ::= LocalVarID '=' 'type' type
290 bool LLParser::ParseUnnamedType() {
291 unsigned TypeID = NumberedTypes.size();
293 // Handle the LocalVarID form.
294 if (Lex.getKind() == lltok::LocalVarID) {
295 if (Lex.getUIntVal() != TypeID)
296 return Error(Lex.getLoc(), "type expected to be numbered '%" +
297 utostr(TypeID) + "'");
298 Lex.Lex(); // eat LocalVarID;
300 if (ParseToken(lltok::equal, "expected '=' after name"))
304 assert(Lex.getKind() == lltok::kw_type);
305 LocTy TypeLoc = Lex.getLoc();
306 Lex.Lex(); // eat kw_type
308 PATypeHolder Ty(Type::getVoidTy(Context));
309 if (ParseType(Ty)) return true;
311 // See if this type was previously referenced.
312 std::map<unsigned, std::pair<PATypeHolder, LocTy> >::iterator
313 FI = ForwardRefTypeIDs.find(TypeID);
314 if (FI != ForwardRefTypeIDs.end()) {
315 if (FI->second.first.get() == Ty)
316 return Error(TypeLoc, "self referential type is invalid");
318 cast<DerivedType>(FI->second.first.get())->refineAbstractTypeTo(Ty);
319 Ty = FI->second.first.get();
320 ForwardRefTypeIDs.erase(FI);
323 NumberedTypes.push_back(Ty);
329 /// ::= LocalVar '=' 'type' type
330 bool LLParser::ParseNamedType() {
331 std::string Name = Lex.getStrVal();
332 LocTy NameLoc = Lex.getLoc();
333 Lex.Lex(); // eat LocalVar.
335 PATypeHolder Ty(Type::getVoidTy(Context));
337 if (ParseToken(lltok::equal, "expected '=' after name") ||
338 ParseToken(lltok::kw_type, "expected 'type' after name") ||
342 // Set the type name, checking for conflicts as we do so.
343 bool AlreadyExists = M->addTypeName(Name, Ty);
344 if (!AlreadyExists) return false;
346 // See if this type is a forward reference. We need to eagerly resolve
347 // types to allow recursive type redefinitions below.
348 std::map<std::string, std::pair<PATypeHolder, LocTy> >::iterator
349 FI = ForwardRefTypes.find(Name);
350 if (FI != ForwardRefTypes.end()) {
351 if (FI->second.first.get() == Ty)
352 return Error(NameLoc, "self referential type is invalid");
354 cast<DerivedType>(FI->second.first.get())->refineAbstractTypeTo(Ty);
355 Ty = FI->second.first.get();
356 ForwardRefTypes.erase(FI);
359 // Inserting a name that is already defined, get the existing name.
360 const Type *Existing = M->getTypeByName(Name);
361 assert(Existing && "Conflict but no matching type?!");
363 // Otherwise, this is an attempt to redefine a type. That's okay if
364 // the redefinition is identical to the original.
365 // FIXME: REMOVE REDEFINITIONS IN LLVM 3.0
366 if (Existing == Ty) return false;
368 // Any other kind of (non-equivalent) redefinition is an error.
369 return Error(NameLoc, "redefinition of type named '" + Name + "' of type '" +
370 Ty->getDescription() + "'");
375 /// ::= 'declare' FunctionHeader
376 bool LLParser::ParseDeclare() {
377 assert(Lex.getKind() == lltok::kw_declare);
381 return ParseFunctionHeader(F, false);
385 /// ::= 'define' FunctionHeader '{' ...
386 bool LLParser::ParseDefine() {
387 assert(Lex.getKind() == lltok::kw_define);
391 return ParseFunctionHeader(F, true) ||
392 ParseFunctionBody(*F);
398 bool LLParser::ParseGlobalType(bool &IsConstant) {
399 if (Lex.getKind() == lltok::kw_constant)
401 else if (Lex.getKind() == lltok::kw_global)
405 return TokError("expected 'global' or 'constant'");
411 /// ParseUnnamedGlobal:
412 /// OptionalVisibility ALIAS ...
413 /// OptionalLinkage OptionalVisibility ... -> global variable
414 /// GlobalID '=' OptionalVisibility ALIAS ...
415 /// GlobalID '=' OptionalLinkage OptionalVisibility ... -> global variable
416 bool LLParser::ParseUnnamedGlobal() {
417 unsigned VarID = NumberedVals.size();
419 LocTy NameLoc = Lex.getLoc();
421 // Handle the GlobalID form.
422 if (Lex.getKind() == lltok::GlobalID) {
423 if (Lex.getUIntVal() != VarID)
424 return Error(Lex.getLoc(), "variable expected to be numbered '%" +
425 utostr(VarID) + "'");
426 Lex.Lex(); // eat GlobalID;
428 if (ParseToken(lltok::equal, "expected '=' after name"))
433 unsigned Linkage, Visibility;
434 if (ParseOptionalLinkage(Linkage, HasLinkage) ||
435 ParseOptionalVisibility(Visibility))
438 if (HasLinkage || Lex.getKind() != lltok::kw_alias)
439 return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility);
440 return ParseAlias(Name, NameLoc, Visibility);
443 /// ParseNamedGlobal:
444 /// GlobalVar '=' OptionalVisibility ALIAS ...
445 /// GlobalVar '=' OptionalLinkage OptionalVisibility ... -> global variable
446 bool LLParser::ParseNamedGlobal() {
447 assert(Lex.getKind() == lltok::GlobalVar);
448 LocTy NameLoc = Lex.getLoc();
449 std::string Name = Lex.getStrVal();
453 unsigned Linkage, Visibility;
454 if (ParseToken(lltok::equal, "expected '=' in global variable") ||
455 ParseOptionalLinkage(Linkage, HasLinkage) ||
456 ParseOptionalVisibility(Visibility))
459 if (HasLinkage || Lex.getKind() != lltok::kw_alias)
460 return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility);
461 return ParseAlias(Name, NameLoc, Visibility);
465 // ::= '!' STRINGCONSTANT
466 bool LLParser::ParseMDString(MDString *&Result) {
468 if (ParseStringConstant(Str)) return true;
469 Result = MDString::get(Context, Str);
474 // ::= '!' MDNodeNumber
475 bool LLParser::ParseMDNodeID(MDNode *&Result) {
476 // !{ ..., !42, ... }
478 if (ParseUInt32(MID)) return true;
480 // Check existing MDNode.
481 if (MID < NumberedMetadata.size() && NumberedMetadata[MID] != 0) {
482 Result = NumberedMetadata[MID];
486 // Create MDNode forward reference.
488 // FIXME: This is not unique enough!
489 std::string FwdRefName = "llvm.mdnode.fwdref." + utostr(MID);
490 Value *V = MDString::get(Context, FwdRefName);
491 MDNode *FwdNode = MDNode::get(Context, &V, 1);
492 ForwardRefMDNodes[MID] = std::make_pair(FwdNode, Lex.getLoc());
494 if (NumberedMetadata.size() <= MID)
495 NumberedMetadata.resize(MID+1);
496 NumberedMetadata[MID] = FwdNode;
501 /// ParseNamedMetadata:
502 /// !foo = !{ !1, !2 }
503 bool LLParser::ParseNamedMetadata() {
504 assert(Lex.getKind() == lltok::MetadataVar);
505 std::string Name = Lex.getStrVal();
508 if (ParseToken(lltok::equal, "expected '=' here") ||
509 ParseToken(lltok::exclaim, "Expected '!' here") ||
510 ParseToken(lltok::lbrace, "Expected '{' here"))
513 SmallVector<MDNode *, 8> Elts;
515 // Null is a special case since it is typeless.
516 if (EatIfPresent(lltok::kw_null)) {
521 if (ParseToken(lltok::exclaim, "Expected '!' here"))
525 if (ParseMDNodeID(N)) return true;
527 } while (EatIfPresent(lltok::comma));
529 if (ParseToken(lltok::rbrace, "expected end of metadata node"))
532 NamedMDNode::Create(Context, Name, Elts.data(), Elts.size(), M);
536 /// ParseStandaloneMetadata:
538 bool LLParser::ParseStandaloneMetadata() {
539 assert(Lex.getKind() == lltok::exclaim);
541 unsigned MetadataID = 0;
544 PATypeHolder Ty(Type::getVoidTy(Context));
545 SmallVector<Value *, 16> Elts;
546 if (ParseUInt32(MetadataID) ||
547 ParseToken(lltok::equal, "expected '=' here") ||
548 ParseType(Ty, TyLoc) ||
549 ParseToken(lltok::exclaim, "Expected '!' here") ||
550 ParseToken(lltok::lbrace, "Expected '{' here") ||
551 ParseMDNodeVector(Elts, NULL) ||
552 ParseToken(lltok::rbrace, "expected end of metadata node"))
555 MDNode *Init = MDNode::get(Context, Elts.data(), Elts.size());
557 // See if this was forward referenced, if so, handle it.
558 std::map<unsigned, std::pair<TrackingVH<MDNode>, LocTy> >::iterator
559 FI = ForwardRefMDNodes.find(MetadataID);
560 if (FI != ForwardRefMDNodes.end()) {
561 FI->second.first->replaceAllUsesWith(Init);
562 ForwardRefMDNodes.erase(FI);
564 assert(NumberedMetadata[MetadataID] == Init && "Tracking VH didn't work");
566 if (MetadataID >= NumberedMetadata.size())
567 NumberedMetadata.resize(MetadataID+1);
569 if (NumberedMetadata[MetadataID] != 0)
570 return TokError("Metadata id is already used");
571 NumberedMetadata[MetadataID] = Init;
578 /// ::= GlobalVar '=' OptionalVisibility 'alias' OptionalLinkage Aliasee
581 /// ::= 'bitcast' '(' TypeAndValue 'to' Type ')'
582 /// ::= 'getelementptr' 'inbounds'? '(' ... ')'
584 /// Everything through visibility has already been parsed.
586 bool LLParser::ParseAlias(const std::string &Name, LocTy NameLoc,
587 unsigned Visibility) {
588 assert(Lex.getKind() == lltok::kw_alias);
591 LocTy LinkageLoc = Lex.getLoc();
592 if (ParseOptionalLinkage(Linkage))
595 if (Linkage != GlobalValue::ExternalLinkage &&
596 Linkage != GlobalValue::WeakAnyLinkage &&
597 Linkage != GlobalValue::WeakODRLinkage &&
598 Linkage != GlobalValue::InternalLinkage &&
599 Linkage != GlobalValue::PrivateLinkage &&
600 Linkage != GlobalValue::LinkerPrivateLinkage)
601 return Error(LinkageLoc, "invalid linkage type for alias");
604 LocTy AliaseeLoc = Lex.getLoc();
605 if (Lex.getKind() != lltok::kw_bitcast &&
606 Lex.getKind() != lltok::kw_getelementptr) {
607 if (ParseGlobalTypeAndValue(Aliasee)) return true;
609 // The bitcast dest type is not present, it is implied by the dest type.
611 if (ParseValID(ID)) return true;
612 if (ID.Kind != ValID::t_Constant)
613 return Error(AliaseeLoc, "invalid aliasee");
614 Aliasee = ID.ConstantVal;
617 if (!Aliasee->getType()->isPointerTy())
618 return Error(AliaseeLoc, "alias must have pointer type");
620 // Okay, create the alias but do not insert it into the module yet.
621 GlobalAlias* GA = new GlobalAlias(Aliasee->getType(),
622 (GlobalValue::LinkageTypes)Linkage, Name,
624 GA->setVisibility((GlobalValue::VisibilityTypes)Visibility);
626 // See if this value already exists in the symbol table. If so, it is either
627 // a redefinition or a definition of a forward reference.
628 if (GlobalValue *Val = M->getNamedValue(Name)) {
629 // See if this was a redefinition. If so, there is no entry in
631 std::map<std::string, std::pair<GlobalValue*, LocTy> >::iterator
632 I = ForwardRefVals.find(Name);
633 if (I == ForwardRefVals.end())
634 return Error(NameLoc, "redefinition of global named '@" + Name + "'");
636 // Otherwise, this was a definition of forward ref. Verify that types
638 if (Val->getType() != GA->getType())
639 return Error(NameLoc,
640 "forward reference and definition of alias have different types");
642 // If they agree, just RAUW the old value with the alias and remove the
644 Val->replaceAllUsesWith(GA);
645 Val->eraseFromParent();
646 ForwardRefVals.erase(I);
649 // Insert into the module, we know its name won't collide now.
650 M->getAliasList().push_back(GA);
651 assert(GA->getNameStr() == Name && "Should not be a name conflict!");
657 /// ::= GlobalVar '=' OptionalLinkage OptionalVisibility OptionalThreadLocal
658 /// OptionalAddrSpace GlobalType Type Const
659 /// ::= OptionalLinkage OptionalVisibility OptionalThreadLocal
660 /// OptionalAddrSpace GlobalType Type Const
662 /// Everything through visibility has been parsed already.
664 bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc,
665 unsigned Linkage, bool HasLinkage,
666 unsigned Visibility) {
668 bool ThreadLocal, IsConstant;
671 PATypeHolder Ty(Type::getVoidTy(Context));
672 if (ParseOptionalToken(lltok::kw_thread_local, ThreadLocal) ||
673 ParseOptionalAddrSpace(AddrSpace) ||
674 ParseGlobalType(IsConstant) ||
675 ParseType(Ty, TyLoc))
678 // If the linkage is specified and is external, then no initializer is
681 if (!HasLinkage || (Linkage != GlobalValue::DLLImportLinkage &&
682 Linkage != GlobalValue::ExternalWeakLinkage &&
683 Linkage != GlobalValue::ExternalLinkage)) {
684 if (ParseGlobalValue(Ty, Init))
688 if (Ty->isFunctionTy() || Ty->isLabelTy())
689 return Error(TyLoc, "invalid type for global variable");
691 GlobalVariable *GV = 0;
693 // See if the global was forward referenced, if so, use the global.
695 if (GlobalValue *GVal = M->getNamedValue(Name)) {
696 if (!ForwardRefVals.erase(Name) || !isa<GlobalValue>(GVal))
697 return Error(NameLoc, "redefinition of global '@" + Name + "'");
698 GV = cast<GlobalVariable>(GVal);
701 std::map<unsigned, std::pair<GlobalValue*, LocTy> >::iterator
702 I = ForwardRefValIDs.find(NumberedVals.size());
703 if (I != ForwardRefValIDs.end()) {
704 GV = cast<GlobalVariable>(I->second.first);
705 ForwardRefValIDs.erase(I);
710 GV = new GlobalVariable(*M, Ty, false, GlobalValue::ExternalLinkage, 0,
711 Name, 0, false, AddrSpace);
713 if (GV->getType()->getElementType() != Ty)
715 "forward reference and definition of global have different types");
717 // Move the forward-reference to the correct spot in the module.
718 M->getGlobalList().splice(M->global_end(), M->getGlobalList(), GV);
722 NumberedVals.push_back(GV);
724 // Set the parsed properties on the global.
726 GV->setInitializer(Init);
727 GV->setConstant(IsConstant);
728 GV->setLinkage((GlobalValue::LinkageTypes)Linkage);
729 GV->setVisibility((GlobalValue::VisibilityTypes)Visibility);
730 GV->setThreadLocal(ThreadLocal);
732 // Parse attributes on the global.
733 while (Lex.getKind() == lltok::comma) {
736 if (Lex.getKind() == lltok::kw_section) {
738 GV->setSection(Lex.getStrVal());
739 if (ParseToken(lltok::StringConstant, "expected global section string"))
741 } else if (Lex.getKind() == lltok::kw_align) {
743 if (ParseOptionalAlignment(Alignment)) return true;
744 GV->setAlignment(Alignment);
746 TokError("unknown global variable property!");
754 //===----------------------------------------------------------------------===//
755 // GlobalValue Reference/Resolution Routines.
756 //===----------------------------------------------------------------------===//
758 /// GetGlobalVal - Get a value with the specified name or ID, creating a
759 /// forward reference record if needed. This can return null if the value
760 /// exists but does not have the right type.
761 GlobalValue *LLParser::GetGlobalVal(const std::string &Name, const Type *Ty,
763 const PointerType *PTy = dyn_cast<PointerType>(Ty);
765 Error(Loc, "global variable reference must have pointer type");
769 // Look this name up in the normal function symbol table.
771 cast_or_null<GlobalValue>(M->getValueSymbolTable().lookup(Name));
773 // If this is a forward reference for the value, see if we already created a
774 // forward ref record.
776 std::map<std::string, std::pair<GlobalValue*, LocTy> >::iterator
777 I = ForwardRefVals.find(Name);
778 if (I != ForwardRefVals.end())
779 Val = I->second.first;
782 // If we have the value in the symbol table or fwd-ref table, return it.
784 if (Val->getType() == Ty) return Val;
785 Error(Loc, "'@" + Name + "' defined with type '" +
786 Val->getType()->getDescription() + "'");
790 // Otherwise, create a new forward reference for this value and remember it.
792 if (const FunctionType *FT = dyn_cast<FunctionType>(PTy->getElementType())) {
793 // Function types can return opaque but functions can't.
794 if (FT->getReturnType()->isOpaqueTy()) {
795 Error(Loc, "function may not return opaque type");
799 FwdVal = Function::Create(FT, GlobalValue::ExternalWeakLinkage, Name, M);
801 FwdVal = new GlobalVariable(*M, PTy->getElementType(), false,
802 GlobalValue::ExternalWeakLinkage, 0, Name);
805 ForwardRefVals[Name] = std::make_pair(FwdVal, Loc);
809 GlobalValue *LLParser::GetGlobalVal(unsigned ID, const Type *Ty, LocTy Loc) {
810 const PointerType *PTy = dyn_cast<PointerType>(Ty);
812 Error(Loc, "global variable reference must have pointer type");
816 GlobalValue *Val = ID < NumberedVals.size() ? NumberedVals[ID] : 0;
818 // If this is a forward reference for the value, see if we already created a
819 // forward ref record.
821 std::map<unsigned, std::pair<GlobalValue*, LocTy> >::iterator
822 I = ForwardRefValIDs.find(ID);
823 if (I != ForwardRefValIDs.end())
824 Val = I->second.first;
827 // If we have the value in the symbol table or fwd-ref table, return it.
829 if (Val->getType() == Ty) return Val;
830 Error(Loc, "'@" + utostr(ID) + "' defined with type '" +
831 Val->getType()->getDescription() + "'");
835 // Otherwise, create a new forward reference for this value and remember it.
837 if (const FunctionType *FT = dyn_cast<FunctionType>(PTy->getElementType())) {
838 // Function types can return opaque but functions can't.
839 if (FT->getReturnType()->isOpaqueTy()) {
840 Error(Loc, "function may not return opaque type");
843 FwdVal = Function::Create(FT, GlobalValue::ExternalWeakLinkage, "", M);
845 FwdVal = new GlobalVariable(*M, PTy->getElementType(), false,
846 GlobalValue::ExternalWeakLinkage, 0, "");
849 ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc);
854 //===----------------------------------------------------------------------===//
856 //===----------------------------------------------------------------------===//
858 /// ParseToken - If the current token has the specified kind, eat it and return
859 /// success. Otherwise, emit the specified error and return failure.
860 bool LLParser::ParseToken(lltok::Kind T, const char *ErrMsg) {
861 if (Lex.getKind() != T)
862 return TokError(ErrMsg);
867 /// ParseStringConstant
868 /// ::= StringConstant
869 bool LLParser::ParseStringConstant(std::string &Result) {
870 if (Lex.getKind() != lltok::StringConstant)
871 return TokError("expected string constant");
872 Result = Lex.getStrVal();
879 bool LLParser::ParseUInt32(unsigned &Val) {
880 if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned())
881 return TokError("expected integer");
882 uint64_t Val64 = Lex.getAPSIntVal().getLimitedValue(0xFFFFFFFFULL+1);
883 if (Val64 != unsigned(Val64))
884 return TokError("expected 32-bit integer (too large)");
891 /// ParseOptionalAddrSpace
893 /// := 'addrspace' '(' uint32 ')'
894 bool LLParser::ParseOptionalAddrSpace(unsigned &AddrSpace) {
896 if (!EatIfPresent(lltok::kw_addrspace))
898 return ParseToken(lltok::lparen, "expected '(' in address space") ||
899 ParseUInt32(AddrSpace) ||
900 ParseToken(lltok::rparen, "expected ')' in address space");
903 /// ParseOptionalAttrs - Parse a potentially empty attribute list. AttrKind
904 /// indicates what kind of attribute list this is: 0: function arg, 1: result,
905 /// 2: function attr.
906 /// 3: function arg after value: FIXME: REMOVE IN LLVM 3.0
907 bool LLParser::ParseOptionalAttrs(unsigned &Attrs, unsigned AttrKind) {
908 Attrs = Attribute::None;
909 LocTy AttrLoc = Lex.getLoc();
912 switch (Lex.getKind()) {
915 // Treat these as signext/zeroext if they occur in the argument list after
916 // the value, as in "call i8 @foo(i8 10 sext)". If they occur before the
917 // value, as in "call i8 @foo(i8 sext (" then it is part of a constant
919 // FIXME: REMOVE THIS IN LLVM 3.0
921 if (Lex.getKind() == lltok::kw_sext)
922 Attrs |= Attribute::SExt;
924 Attrs |= Attribute::ZExt;
928 default: // End of attributes.
929 if (AttrKind != 2 && (Attrs & Attribute::FunctionOnly))
930 return Error(AttrLoc, "invalid use of function-only attribute");
932 if (AttrKind != 0 && AttrKind != 3 && (Attrs & Attribute::ParameterOnly))
933 return Error(AttrLoc, "invalid use of parameter-only attribute");
936 case lltok::kw_zeroext: Attrs |= Attribute::ZExt; break;
937 case lltok::kw_signext: Attrs |= Attribute::SExt; break;
938 case lltok::kw_inreg: Attrs |= Attribute::InReg; break;
939 case lltok::kw_sret: Attrs |= Attribute::StructRet; break;
940 case lltok::kw_noalias: Attrs |= Attribute::NoAlias; break;
941 case lltok::kw_nocapture: Attrs |= Attribute::NoCapture; break;
942 case lltok::kw_byval: Attrs |= Attribute::ByVal; break;
943 case lltok::kw_nest: Attrs |= Attribute::Nest; break;
945 case lltok::kw_noreturn: Attrs |= Attribute::NoReturn; break;
946 case lltok::kw_nounwind: Attrs |= Attribute::NoUnwind; break;
947 case lltok::kw_noinline: Attrs |= Attribute::NoInline; break;
948 case lltok::kw_readnone: Attrs |= Attribute::ReadNone; break;
949 case lltok::kw_readonly: Attrs |= Attribute::ReadOnly; break;
950 case lltok::kw_inlinehint: Attrs |= Attribute::InlineHint; break;
951 case lltok::kw_alwaysinline: Attrs |= Attribute::AlwaysInline; break;
952 case lltok::kw_optsize: Attrs |= Attribute::OptimizeForSize; break;
953 case lltok::kw_ssp: Attrs |= Attribute::StackProtect; break;
954 case lltok::kw_sspreq: Attrs |= Attribute::StackProtectReq; break;
955 case lltok::kw_noredzone: Attrs |= Attribute::NoRedZone; break;
956 case lltok::kw_noimplicitfloat: Attrs |= Attribute::NoImplicitFloat; break;
957 case lltok::kw_naked: Attrs |= Attribute::Naked; break;
959 case lltok::kw_alignstack: {
961 if (ParseOptionalStackAlignment(Alignment))
963 Attrs |= Attribute::constructStackAlignmentFromInt(Alignment);
967 case lltok::kw_align: {
969 if (ParseOptionalAlignment(Alignment))
971 Attrs |= Attribute::constructAlignmentFromInt(Alignment);
980 /// ParseOptionalLinkage
983 /// ::= 'linker_private'
988 /// ::= 'linkonce_odr'
993 /// ::= 'extern_weak'
995 bool LLParser::ParseOptionalLinkage(unsigned &Res, bool &HasLinkage) {
997 switch (Lex.getKind()) {
998 default: Res=GlobalValue::ExternalLinkage; return false;
999 case lltok::kw_private: Res = GlobalValue::PrivateLinkage; break;
1000 case lltok::kw_linker_private: Res = GlobalValue::LinkerPrivateLinkage; break;
1001 case lltok::kw_internal: Res = GlobalValue::InternalLinkage; break;
1002 case lltok::kw_weak: Res = GlobalValue::WeakAnyLinkage; break;
1003 case lltok::kw_weak_odr: Res = GlobalValue::WeakODRLinkage; break;
1004 case lltok::kw_linkonce: Res = GlobalValue::LinkOnceAnyLinkage; break;
1005 case lltok::kw_linkonce_odr: Res = GlobalValue::LinkOnceODRLinkage; break;
1006 case lltok::kw_available_externally:
1007 Res = GlobalValue::AvailableExternallyLinkage;
1009 case lltok::kw_appending: Res = GlobalValue::AppendingLinkage; break;
1010 case lltok::kw_dllexport: Res = GlobalValue::DLLExportLinkage; break;
1011 case lltok::kw_common: Res = GlobalValue::CommonLinkage; break;
1012 case lltok::kw_dllimport: Res = GlobalValue::DLLImportLinkage; break;
1013 case lltok::kw_extern_weak: Res = GlobalValue::ExternalWeakLinkage; break;
1014 case lltok::kw_external: Res = GlobalValue::ExternalLinkage; break;
1021 /// ParseOptionalVisibility
1027 bool LLParser::ParseOptionalVisibility(unsigned &Res) {
1028 switch (Lex.getKind()) {
1029 default: Res = GlobalValue::DefaultVisibility; return false;
1030 case lltok::kw_default: Res = GlobalValue::DefaultVisibility; break;
1031 case lltok::kw_hidden: Res = GlobalValue::HiddenVisibility; break;
1032 case lltok::kw_protected: Res = GlobalValue::ProtectedVisibility; break;
1038 /// ParseOptionalCallingConv
1043 /// ::= 'x86_stdcallcc'
1044 /// ::= 'x86_fastcallcc'
1045 /// ::= 'arm_apcscc'
1046 /// ::= 'arm_aapcscc'
1047 /// ::= 'arm_aapcs_vfpcc'
1048 /// ::= 'msp430_intrcc'
1051 bool LLParser::ParseOptionalCallingConv(CallingConv::ID &CC) {
1052 switch (Lex.getKind()) {
1053 default: CC = CallingConv::C; return false;
1054 case lltok::kw_ccc: CC = CallingConv::C; break;
1055 case lltok::kw_fastcc: CC = CallingConv::Fast; break;
1056 case lltok::kw_coldcc: CC = CallingConv::Cold; break;
1057 case lltok::kw_x86_stdcallcc: CC = CallingConv::X86_StdCall; break;
1058 case lltok::kw_x86_fastcallcc: CC = CallingConv::X86_FastCall; break;
1059 case lltok::kw_arm_apcscc: CC = CallingConv::ARM_APCS; break;
1060 case lltok::kw_arm_aapcscc: CC = CallingConv::ARM_AAPCS; break;
1061 case lltok::kw_arm_aapcs_vfpcc:CC = CallingConv::ARM_AAPCS_VFP; break;
1062 case lltok::kw_msp430_intrcc: CC = CallingConv::MSP430_INTR; break;
1063 case lltok::kw_cc: {
1064 unsigned ArbitraryCC;
1066 if (ParseUInt32(ArbitraryCC)) {
1069 CC = static_cast<CallingConv::ID>(ArbitraryCC);
1079 /// ParseInstructionMetadata
1080 /// ::= !dbg !42 (',' !dbg !57)*
1081 bool LLParser::ParseInstructionMetadata(Instruction *Inst) {
1083 if (Lex.getKind() != lltok::MetadataVar)
1084 return TokError("expected metadata after comma");
1086 std::string Name = Lex.getStrVal();
1090 if (ParseToken(lltok::exclaim, "expected '!' here") ||
1091 ParseMDNodeID(Node))
1094 unsigned MDK = M->getMDKindID(Name.c_str());
1095 Inst->setMetadata(MDK, Node);
1097 // If this is the end of the list, we're done.
1098 } while (EatIfPresent(lltok::comma));
1102 /// ParseOptionalAlignment
1105 bool LLParser::ParseOptionalAlignment(unsigned &Alignment) {
1107 if (!EatIfPresent(lltok::kw_align))
1109 LocTy AlignLoc = Lex.getLoc();
1110 if (ParseUInt32(Alignment)) return true;
1111 if (!isPowerOf2_32(Alignment))
1112 return Error(AlignLoc, "alignment is not a power of two");
1116 /// ParseOptionalCommaAlign
1120 /// This returns with AteExtraComma set to true if it ate an excess comma at the
1122 bool LLParser::ParseOptionalCommaAlign(unsigned &Alignment,
1123 bool &AteExtraComma) {
1124 AteExtraComma = false;
1125 while (EatIfPresent(lltok::comma)) {
1126 // Metadata at the end is an early exit.
1127 if (Lex.getKind() == lltok::MetadataVar) {
1128 AteExtraComma = true;
1132 if (Lex.getKind() == lltok::kw_align) {
1133 if (ParseOptionalAlignment(Alignment)) return true;
1141 /// ParseOptionalStackAlignment
1143 /// ::= 'alignstack' '(' 4 ')'
1144 bool LLParser::ParseOptionalStackAlignment(unsigned &Alignment) {
1146 if (!EatIfPresent(lltok::kw_alignstack))
1148 LocTy ParenLoc = Lex.getLoc();
1149 if (!EatIfPresent(lltok::lparen))
1150 return Error(ParenLoc, "expected '('");
1151 LocTy AlignLoc = Lex.getLoc();
1152 if (ParseUInt32(Alignment)) return true;
1153 ParenLoc = Lex.getLoc();
1154 if (!EatIfPresent(lltok::rparen))
1155 return Error(ParenLoc, "expected ')'");
1156 if (!isPowerOf2_32(Alignment))
1157 return Error(AlignLoc, "stack alignment is not a power of two");
1161 /// ParseIndexList - This parses the index list for an insert/extractvalue
1162 /// instruction. This sets AteExtraComma in the case where we eat an extra
1163 /// comma at the end of the line and find that it is followed by metadata.
1164 /// Clients that don't allow metadata can call the version of this function that
1165 /// only takes one argument.
1168 /// ::= (',' uint32)+
1170 bool LLParser::ParseIndexList(SmallVectorImpl<unsigned> &Indices,
1171 bool &AteExtraComma) {
1172 AteExtraComma = false;
1174 if (Lex.getKind() != lltok::comma)
1175 return TokError("expected ',' as start of index list");
1177 while (EatIfPresent(lltok::comma)) {
1178 if (Lex.getKind() == lltok::MetadataVar) {
1179 AteExtraComma = true;
1183 if (ParseUInt32(Idx)) return true;
1184 Indices.push_back(Idx);
1190 //===----------------------------------------------------------------------===//
1192 //===----------------------------------------------------------------------===//
1194 /// ParseType - Parse and resolve a full type.
1195 bool LLParser::ParseType(PATypeHolder &Result, bool AllowVoid) {
1196 LocTy TypeLoc = Lex.getLoc();
1197 if (ParseTypeRec(Result)) return true;
1199 // Verify no unresolved uprefs.
1200 if (!UpRefs.empty())
1201 return Error(UpRefs.back().Loc, "invalid unresolved type up reference");
1203 if (!AllowVoid && Result.get()->isVoidTy())
1204 return Error(TypeLoc, "void type only allowed for function results");
1209 /// HandleUpRefs - Every time we finish a new layer of types, this function is
1210 /// called. It loops through the UpRefs vector, which is a list of the
1211 /// currently active types. For each type, if the up-reference is contained in
1212 /// the newly completed type, we decrement the level count. When the level
1213 /// count reaches zero, the up-referenced type is the type that is passed in:
1214 /// thus we can complete the cycle.
1216 PATypeHolder LLParser::HandleUpRefs(const Type *ty) {
1217 // If Ty isn't abstract, or if there are no up-references in it, then there is
1218 // nothing to resolve here.
1219 if (!ty->isAbstract() || UpRefs.empty()) return ty;
1221 PATypeHolder Ty(ty);
1223 dbgs() << "Type '" << Ty->getDescription()
1224 << "' newly formed. Resolving upreferences.\n"
1225 << UpRefs.size() << " upreferences active!\n";
1228 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
1229 // to zero), we resolve them all together before we resolve them to Ty. At
1230 // the end of the loop, if there is anything to resolve to Ty, it will be in
1232 OpaqueType *TypeToResolve = 0;
1234 for (unsigned i = 0; i != UpRefs.size(); ++i) {
1235 // Determine if 'Ty' directly contains this up-references 'LastContainedTy'.
1237 std::find(Ty->subtype_begin(), Ty->subtype_end(),
1238 UpRefs[i].LastContainedTy) != Ty->subtype_end();
1241 dbgs() << " UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
1242 << UpRefs[i].LastContainedTy->getDescription() << ") = "
1243 << (ContainsType ? "true" : "false")
1244 << " level=" << UpRefs[i].NestingLevel << "\n";
1249 // Decrement level of upreference
1250 unsigned Level = --UpRefs[i].NestingLevel;
1251 UpRefs[i].LastContainedTy = Ty;
1253 // If the Up-reference has a non-zero level, it shouldn't be resolved yet.
1258 dbgs() << " * Resolving upreference for " << UpRefs[i].UpRefTy << "\n";
1261 TypeToResolve = UpRefs[i].UpRefTy;
1263 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
1264 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list.
1265 --i; // Do not skip the next element.
1269 TypeToResolve->refineAbstractTypeTo(Ty);
1275 /// ParseTypeRec - The recursive function used to process the internal
1276 /// implementation details of types.
1277 bool LLParser::ParseTypeRec(PATypeHolder &Result) {
1278 switch (Lex.getKind()) {
1280 return TokError("expected type");
1282 // TypeRec ::= 'float' | 'void' (etc)
1283 Result = Lex.getTyVal();
1286 case lltok::kw_opaque:
1287 // TypeRec ::= 'opaque'
1288 Result = OpaqueType::get(Context);
1292 // TypeRec ::= '{' ... '}'
1293 if (ParseStructType(Result, false))
1296 case lltok::kw_union:
1297 // TypeRec ::= 'union' '{' ... '}'
1298 if (ParseUnionType(Result))
1301 case lltok::lsquare:
1302 // TypeRec ::= '[' ... ']'
1303 Lex.Lex(); // eat the lsquare.
1304 if (ParseArrayVectorType(Result, false))
1307 case lltok::less: // Either vector or packed struct.
1308 // TypeRec ::= '<' ... '>'
1310 if (Lex.getKind() == lltok::lbrace) {
1311 if (ParseStructType(Result, true) ||
1312 ParseToken(lltok::greater, "expected '>' at end of packed struct"))
1314 } else if (ParseArrayVectorType(Result, true))
1317 case lltok::LocalVar:
1318 case lltok::StringConstant: // FIXME: REMOVE IN LLVM 3.0
1320 if (const Type *T = M->getTypeByName(Lex.getStrVal())) {
1323 Result = OpaqueType::get(Context);
1324 ForwardRefTypes.insert(std::make_pair(Lex.getStrVal(),
1325 std::make_pair(Result,
1327 M->addTypeName(Lex.getStrVal(), Result.get());
1332 case lltok::LocalVarID:
1334 if (Lex.getUIntVal() < NumberedTypes.size())
1335 Result = NumberedTypes[Lex.getUIntVal()];
1337 std::map<unsigned, std::pair<PATypeHolder, LocTy> >::iterator
1338 I = ForwardRefTypeIDs.find(Lex.getUIntVal());
1339 if (I != ForwardRefTypeIDs.end())
1340 Result = I->second.first;
1342 Result = OpaqueType::get(Context);
1343 ForwardRefTypeIDs.insert(std::make_pair(Lex.getUIntVal(),
1344 std::make_pair(Result,
1350 case lltok::backslash: {
1351 // TypeRec ::= '\' 4
1354 if (ParseUInt32(Val)) return true;
1355 OpaqueType *OT = OpaqueType::get(Context); //Use temporary placeholder.
1356 UpRefs.push_back(UpRefRecord(Lex.getLoc(), Val, OT));
1362 // Parse the type suffixes.
1364 switch (Lex.getKind()) {
1366 default: return false;
1368 // TypeRec ::= TypeRec '*'
1370 if (Result.get()->isLabelTy())
1371 return TokError("basic block pointers are invalid");
1372 if (Result.get()->isVoidTy())
1373 return TokError("pointers to void are invalid; use i8* instead");
1374 if (!PointerType::isValidElementType(Result.get()))
1375 return TokError("pointer to this type is invalid");
1376 Result = HandleUpRefs(PointerType::getUnqual(Result.get()));
1380 // TypeRec ::= TypeRec 'addrspace' '(' uint32 ')' '*'
1381 case lltok::kw_addrspace: {
1382 if (Result.get()->isLabelTy())
1383 return TokError("basic block pointers are invalid");
1384 if (Result.get()->isVoidTy())
1385 return TokError("pointers to void are invalid; use i8* instead");
1386 if (!PointerType::isValidElementType(Result.get()))
1387 return TokError("pointer to this type is invalid");
1389 if (ParseOptionalAddrSpace(AddrSpace) ||
1390 ParseToken(lltok::star, "expected '*' in address space"))
1393 Result = HandleUpRefs(PointerType::get(Result.get(), AddrSpace));
1397 /// Types '(' ArgTypeListI ')' OptFuncAttrs
1399 if (ParseFunctionType(Result))
1406 /// ParseParameterList
1408 /// ::= '(' Arg (',' Arg)* ')'
1410 /// ::= Type OptionalAttributes Value OptionalAttributes
1411 bool LLParser::ParseParameterList(SmallVectorImpl<ParamInfo> &ArgList,
1412 PerFunctionState &PFS) {
1413 if (ParseToken(lltok::lparen, "expected '(' in call"))
1416 while (Lex.getKind() != lltok::rparen) {
1417 // If this isn't the first argument, we need a comma.
1418 if (!ArgList.empty() &&
1419 ParseToken(lltok::comma, "expected ',' in argument list"))
1422 // Parse the argument.
1424 PATypeHolder ArgTy(Type::getVoidTy(Context));
1425 unsigned ArgAttrs1 = Attribute::None;
1426 unsigned ArgAttrs2 = Attribute::None;
1428 if (ParseType(ArgTy, ArgLoc))
1431 // Otherwise, handle normal operands.
1432 if (ParseOptionalAttrs(ArgAttrs1, 0) ||
1433 ParseValue(ArgTy, V, PFS) ||
1434 // FIXME: Should not allow attributes after the argument, remove this
1436 ParseOptionalAttrs(ArgAttrs2, 3))
1438 ArgList.push_back(ParamInfo(ArgLoc, V, ArgAttrs1|ArgAttrs2));
1441 Lex.Lex(); // Lex the ')'.
1447 /// ParseArgumentList - Parse the argument list for a function type or function
1448 /// prototype. If 'inType' is true then we are parsing a FunctionType.
1449 /// ::= '(' ArgTypeListI ')'
1453 /// ::= ArgTypeList ',' '...'
1454 /// ::= ArgType (',' ArgType)*
1456 bool LLParser::ParseArgumentList(std::vector<ArgInfo> &ArgList,
1457 bool &isVarArg, bool inType) {
1459 assert(Lex.getKind() == lltok::lparen);
1460 Lex.Lex(); // eat the (.
1462 if (Lex.getKind() == lltok::rparen) {
1464 } else if (Lex.getKind() == lltok::dotdotdot) {
1468 LocTy TypeLoc = Lex.getLoc();
1469 PATypeHolder ArgTy(Type::getVoidTy(Context));
1473 // If we're parsing a type, use ParseTypeRec, because we allow recursive
1474 // types (such as a function returning a pointer to itself). If parsing a
1475 // function prototype, we require fully resolved types.
1476 if ((inType ? ParseTypeRec(ArgTy) : ParseType(ArgTy)) ||
1477 ParseOptionalAttrs(Attrs, 0)) return true;
1479 if (ArgTy->isVoidTy())
1480 return Error(TypeLoc, "argument can not have void type");
1482 if (Lex.getKind() == lltok::LocalVar ||
1483 Lex.getKind() == lltok::StringConstant) { // FIXME: REMOVE IN LLVM 3.0
1484 Name = Lex.getStrVal();
1488 if (!FunctionType::isValidArgumentType(ArgTy))
1489 return Error(TypeLoc, "invalid type for function argument");
1491 ArgList.push_back(ArgInfo(TypeLoc, ArgTy, Attrs, Name));
1493 while (EatIfPresent(lltok::comma)) {
1494 // Handle ... at end of arg list.
1495 if (EatIfPresent(lltok::dotdotdot)) {
1500 // Otherwise must be an argument type.
1501 TypeLoc = Lex.getLoc();
1502 if ((inType ? ParseTypeRec(ArgTy) : ParseType(ArgTy)) ||
1503 ParseOptionalAttrs(Attrs, 0)) return true;
1505 if (ArgTy->isVoidTy())
1506 return Error(TypeLoc, "argument can not have void type");
1508 if (Lex.getKind() == lltok::LocalVar ||
1509 Lex.getKind() == lltok::StringConstant) { // FIXME: REMOVE IN LLVM 3.0
1510 Name = Lex.getStrVal();
1516 if (!ArgTy->isFirstClassType() && !ArgTy->isOpaqueTy())
1517 return Error(TypeLoc, "invalid type for function argument");
1519 ArgList.push_back(ArgInfo(TypeLoc, ArgTy, Attrs, Name));
1523 return ParseToken(lltok::rparen, "expected ')' at end of argument list");
1526 /// ParseFunctionType
1527 /// ::= Type ArgumentList OptionalAttrs
1528 bool LLParser::ParseFunctionType(PATypeHolder &Result) {
1529 assert(Lex.getKind() == lltok::lparen);
1531 if (!FunctionType::isValidReturnType(Result))
1532 return TokError("invalid function return type");
1534 std::vector<ArgInfo> ArgList;
1537 if (ParseArgumentList(ArgList, isVarArg, true) ||
1538 // FIXME: Allow, but ignore attributes on function types!
1539 // FIXME: Remove in LLVM 3.0
1540 ParseOptionalAttrs(Attrs, 2))
1543 // Reject names on the arguments lists.
1544 for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
1545 if (!ArgList[i].Name.empty())
1546 return Error(ArgList[i].Loc, "argument name invalid in function type");
1547 if (!ArgList[i].Attrs != 0) {
1548 // Allow but ignore attributes on function types; this permits
1550 // FIXME: REJECT ATTRIBUTES ON FUNCTION TYPES in LLVM 3.0
1554 std::vector<const Type*> ArgListTy;
1555 for (unsigned i = 0, e = ArgList.size(); i != e; ++i)
1556 ArgListTy.push_back(ArgList[i].Type);
1558 Result = HandleUpRefs(FunctionType::get(Result.get(),
1559 ArgListTy, isVarArg));
1563 /// ParseStructType: Handles packed and unpacked types. </> parsed elsewhere.
1566 /// ::= '{' TypeRec (',' TypeRec)* '}'
1567 /// ::= '<' '{' '}' '>'
1568 /// ::= '<' '{' TypeRec (',' TypeRec)* '}' '>'
1569 bool LLParser::ParseStructType(PATypeHolder &Result, bool Packed) {
1570 assert(Lex.getKind() == lltok::lbrace);
1571 Lex.Lex(); // Consume the '{'
1573 if (EatIfPresent(lltok::rbrace)) {
1574 Result = StructType::get(Context, Packed);
1578 std::vector<PATypeHolder> ParamsList;
1579 LocTy EltTyLoc = Lex.getLoc();
1580 if (ParseTypeRec(Result)) return true;
1581 ParamsList.push_back(Result);
1583 if (Result->isVoidTy())
1584 return Error(EltTyLoc, "struct element can not have void type");
1585 if (!StructType::isValidElementType(Result))
1586 return Error(EltTyLoc, "invalid element type for struct");
1588 while (EatIfPresent(lltok::comma)) {
1589 EltTyLoc = Lex.getLoc();
1590 if (ParseTypeRec(Result)) return true;
1592 if (Result->isVoidTy())
1593 return Error(EltTyLoc, "struct element can not have void type");
1594 if (!StructType::isValidElementType(Result))
1595 return Error(EltTyLoc, "invalid element type for struct");
1597 ParamsList.push_back(Result);
1600 if (ParseToken(lltok::rbrace, "expected '}' at end of struct"))
1603 std::vector<const Type*> ParamsListTy;
1604 for (unsigned i = 0, e = ParamsList.size(); i != e; ++i)
1605 ParamsListTy.push_back(ParamsList[i].get());
1606 Result = HandleUpRefs(StructType::get(Context, ParamsListTy, Packed));
1612 /// ::= 'union' '{' TypeRec (',' TypeRec)* '}'
1613 bool LLParser::ParseUnionType(PATypeHolder &Result) {
1614 assert(Lex.getKind() == lltok::kw_union);
1615 Lex.Lex(); // Consume the 'union'
1617 if (ParseToken(lltok::lbrace, "'{' expected after 'union'")) return true;
1619 SmallVector<PATypeHolder, 8> ParamsList;
1621 LocTy EltTyLoc = Lex.getLoc();
1622 if (ParseTypeRec(Result)) return true;
1623 ParamsList.push_back(Result);
1625 if (Result->isVoidTy())
1626 return Error(EltTyLoc, "union element can not have void type");
1627 if (!UnionType::isValidElementType(Result))
1628 return Error(EltTyLoc, "invalid element type for union");
1630 } while (EatIfPresent(lltok::comma)) ;
1632 if (ParseToken(lltok::rbrace, "expected '}' at end of union"))
1635 SmallVector<const Type*, 8> ParamsListTy;
1636 for (unsigned i = 0, e = ParamsList.size(); i != e; ++i)
1637 ParamsListTy.push_back(ParamsList[i].get());
1638 Result = HandleUpRefs(UnionType::get(&ParamsListTy[0], ParamsListTy.size()));
1642 /// ParseArrayVectorType - Parse an array or vector type, assuming the first
1643 /// token has already been consumed.
1645 /// ::= '[' APSINTVAL 'x' Types ']'
1646 /// ::= '<' APSINTVAL 'x' Types '>'
1647 bool LLParser::ParseArrayVectorType(PATypeHolder &Result, bool isVector) {
1648 if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned() ||
1649 Lex.getAPSIntVal().getBitWidth() > 64)
1650 return TokError("expected number in address space");
1652 LocTy SizeLoc = Lex.getLoc();
1653 uint64_t Size = Lex.getAPSIntVal().getZExtValue();
1656 if (ParseToken(lltok::kw_x, "expected 'x' after element count"))
1659 LocTy TypeLoc = Lex.getLoc();
1660 PATypeHolder EltTy(Type::getVoidTy(Context));
1661 if (ParseTypeRec(EltTy)) return true;
1663 if (EltTy->isVoidTy())
1664 return Error(TypeLoc, "array and vector element type cannot be void");
1666 if (ParseToken(isVector ? lltok::greater : lltok::rsquare,
1667 "expected end of sequential type"))
1672 return Error(SizeLoc, "zero element vector is illegal");
1673 if ((unsigned)Size != Size)
1674 return Error(SizeLoc, "size too large for vector");
1675 if (!VectorType::isValidElementType(EltTy))
1676 return Error(TypeLoc, "vector element type must be fp or integer");
1677 Result = VectorType::get(EltTy, unsigned(Size));
1679 if (!ArrayType::isValidElementType(EltTy))
1680 return Error(TypeLoc, "invalid array element type");
1681 Result = HandleUpRefs(ArrayType::get(EltTy, Size));
1686 //===----------------------------------------------------------------------===//
1687 // Function Semantic Analysis.
1688 //===----------------------------------------------------------------------===//
1690 LLParser::PerFunctionState::PerFunctionState(LLParser &p, Function &f,
1692 : P(p), F(f), FunctionNumber(functionNumber) {
1694 // Insert unnamed arguments into the NumberedVals list.
1695 for (Function::arg_iterator AI = F.arg_begin(), E = F.arg_end();
1698 NumberedVals.push_back(AI);
1701 LLParser::PerFunctionState::~PerFunctionState() {
1702 // If there were any forward referenced non-basicblock values, delete them.
1703 for (std::map<std::string, std::pair<Value*, LocTy> >::iterator
1704 I = ForwardRefVals.begin(), E = ForwardRefVals.end(); I != E; ++I)
1705 if (!isa<BasicBlock>(I->second.first)) {
1706 I->second.first->replaceAllUsesWith(
1707 UndefValue::get(I->second.first->getType()));
1708 delete I->second.first;
1709 I->second.first = 0;
1712 for (std::map<unsigned, std::pair<Value*, LocTy> >::iterator
1713 I = ForwardRefValIDs.begin(), E = ForwardRefValIDs.end(); I != E; ++I)
1714 if (!isa<BasicBlock>(I->second.first)) {
1715 I->second.first->replaceAllUsesWith(
1716 UndefValue::get(I->second.first->getType()));
1717 delete I->second.first;
1718 I->second.first = 0;
1722 bool LLParser::PerFunctionState::FinishFunction() {
1723 // Check to see if someone took the address of labels in this block.
1724 if (!P.ForwardRefBlockAddresses.empty()) {
1726 if (!F.getName().empty()) {
1727 FunctionID.Kind = ValID::t_GlobalName;
1728 FunctionID.StrVal = F.getName();
1730 FunctionID.Kind = ValID::t_GlobalID;
1731 FunctionID.UIntVal = FunctionNumber;
1734 std::map<ValID, std::vector<std::pair<ValID, GlobalValue*> > >::iterator
1735 FRBAI = P.ForwardRefBlockAddresses.find(FunctionID);
1736 if (FRBAI != P.ForwardRefBlockAddresses.end()) {
1737 // Resolve all these references.
1738 if (P.ResolveForwardRefBlockAddresses(&F, FRBAI->second, this))
1741 P.ForwardRefBlockAddresses.erase(FRBAI);
1745 if (!ForwardRefVals.empty())
1746 return P.Error(ForwardRefVals.begin()->second.second,
1747 "use of undefined value '%" + ForwardRefVals.begin()->first +
1749 if (!ForwardRefValIDs.empty())
1750 return P.Error(ForwardRefValIDs.begin()->second.second,
1751 "use of undefined value '%" +
1752 utostr(ForwardRefValIDs.begin()->first) + "'");
1757 /// GetVal - Get a value with the specified name or ID, creating a
1758 /// forward reference record if needed. This can return null if the value
1759 /// exists but does not have the right type.
1760 Value *LLParser::PerFunctionState::GetVal(const std::string &Name,
1761 const Type *Ty, LocTy Loc) {
1762 // Look this name up in the normal function symbol table.
1763 Value *Val = F.getValueSymbolTable().lookup(Name);
1765 // If this is a forward reference for the value, see if we already created a
1766 // forward ref record.
1768 std::map<std::string, std::pair<Value*, LocTy> >::iterator
1769 I = ForwardRefVals.find(Name);
1770 if (I != ForwardRefVals.end())
1771 Val = I->second.first;
1774 // If we have the value in the symbol table or fwd-ref table, return it.
1776 if (Val->getType() == Ty) return Val;
1777 if (Ty->isLabelTy())
1778 P.Error(Loc, "'%" + Name + "' is not a basic block");
1780 P.Error(Loc, "'%" + Name + "' defined with type '" +
1781 Val->getType()->getDescription() + "'");
1785 // Don't make placeholders with invalid type.
1786 if (!Ty->isFirstClassType() && !Ty->isOpaqueTy() && !Ty->isLabelTy()) {
1787 P.Error(Loc, "invalid use of a non-first-class type");
1791 // Otherwise, create a new forward reference for this value and remember it.
1793 if (Ty->isLabelTy())
1794 FwdVal = BasicBlock::Create(F.getContext(), Name, &F);
1796 FwdVal = new Argument(Ty, Name);
1798 ForwardRefVals[Name] = std::make_pair(FwdVal, Loc);
1802 Value *LLParser::PerFunctionState::GetVal(unsigned ID, const Type *Ty,
1804 // Look this name up in the normal function symbol table.
1805 Value *Val = ID < NumberedVals.size() ? NumberedVals[ID] : 0;
1807 // If this is a forward reference for the value, see if we already created a
1808 // forward ref record.
1810 std::map<unsigned, std::pair<Value*, LocTy> >::iterator
1811 I = ForwardRefValIDs.find(ID);
1812 if (I != ForwardRefValIDs.end())
1813 Val = I->second.first;
1816 // If we have the value in the symbol table or fwd-ref table, return it.
1818 if (Val->getType() == Ty) return Val;
1819 if (Ty->isLabelTy())
1820 P.Error(Loc, "'%" + utostr(ID) + "' is not a basic block");
1822 P.Error(Loc, "'%" + utostr(ID) + "' defined with type '" +
1823 Val->getType()->getDescription() + "'");
1827 if (!Ty->isFirstClassType() && !Ty->isOpaqueTy() && !Ty->isLabelTy()) {
1828 P.Error(Loc, "invalid use of a non-first-class type");
1832 // Otherwise, create a new forward reference for this value and remember it.
1834 if (Ty->isLabelTy())
1835 FwdVal = BasicBlock::Create(F.getContext(), "", &F);
1837 FwdVal = new Argument(Ty);
1839 ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc);
1843 /// SetInstName - After an instruction is parsed and inserted into its
1844 /// basic block, this installs its name.
1845 bool LLParser::PerFunctionState::SetInstName(int NameID,
1846 const std::string &NameStr,
1847 LocTy NameLoc, Instruction *Inst) {
1848 // If this instruction has void type, it cannot have a name or ID specified.
1849 if (Inst->getType()->isVoidTy()) {
1850 if (NameID != -1 || !NameStr.empty())
1851 return P.Error(NameLoc, "instructions returning void cannot have a name");
1855 // If this was a numbered instruction, verify that the instruction is the
1856 // expected value and resolve any forward references.
1857 if (NameStr.empty()) {
1858 // If neither a name nor an ID was specified, just use the next ID.
1860 NameID = NumberedVals.size();
1862 if (unsigned(NameID) != NumberedVals.size())
1863 return P.Error(NameLoc, "instruction expected to be numbered '%" +
1864 utostr(NumberedVals.size()) + "'");
1866 std::map<unsigned, std::pair<Value*, LocTy> >::iterator FI =
1867 ForwardRefValIDs.find(NameID);
1868 if (FI != ForwardRefValIDs.end()) {
1869 if (FI->second.first->getType() != Inst->getType())
1870 return P.Error(NameLoc, "instruction forward referenced with type '" +
1871 FI->second.first->getType()->getDescription() + "'");
1872 FI->second.first->replaceAllUsesWith(Inst);
1873 delete FI->second.first;
1874 ForwardRefValIDs.erase(FI);
1877 NumberedVals.push_back(Inst);
1881 // Otherwise, the instruction had a name. Resolve forward refs and set it.
1882 std::map<std::string, std::pair<Value*, LocTy> >::iterator
1883 FI = ForwardRefVals.find(NameStr);
1884 if (FI != ForwardRefVals.end()) {
1885 if (FI->second.first->getType() != Inst->getType())
1886 return P.Error(NameLoc, "instruction forward referenced with type '" +
1887 FI->second.first->getType()->getDescription() + "'");
1888 FI->second.first->replaceAllUsesWith(Inst);
1889 delete FI->second.first;
1890 ForwardRefVals.erase(FI);
1893 // Set the name on the instruction.
1894 Inst->setName(NameStr);
1896 if (Inst->getNameStr() != NameStr)
1897 return P.Error(NameLoc, "multiple definition of local value named '" +
1902 /// GetBB - Get a basic block with the specified name or ID, creating a
1903 /// forward reference record if needed.
1904 BasicBlock *LLParser::PerFunctionState::GetBB(const std::string &Name,
1906 return cast_or_null<BasicBlock>(GetVal(Name,
1907 Type::getLabelTy(F.getContext()), Loc));
1910 BasicBlock *LLParser::PerFunctionState::GetBB(unsigned ID, LocTy Loc) {
1911 return cast_or_null<BasicBlock>(GetVal(ID,
1912 Type::getLabelTy(F.getContext()), Loc));
1915 /// DefineBB - Define the specified basic block, which is either named or
1916 /// unnamed. If there is an error, this returns null otherwise it returns
1917 /// the block being defined.
1918 BasicBlock *LLParser::PerFunctionState::DefineBB(const std::string &Name,
1922 BB = GetBB(NumberedVals.size(), Loc);
1924 BB = GetBB(Name, Loc);
1925 if (BB == 0) return 0; // Already diagnosed error.
1927 // Move the block to the end of the function. Forward ref'd blocks are
1928 // inserted wherever they happen to be referenced.
1929 F.getBasicBlockList().splice(F.end(), F.getBasicBlockList(), BB);
1931 // Remove the block from forward ref sets.
1933 ForwardRefValIDs.erase(NumberedVals.size());
1934 NumberedVals.push_back(BB);
1936 // BB forward references are already in the function symbol table.
1937 ForwardRefVals.erase(Name);
1943 //===----------------------------------------------------------------------===//
1945 //===----------------------------------------------------------------------===//
1947 /// ParseValID - Parse an abstract value that doesn't necessarily have a
1948 /// type implied. For example, if we parse "4" we don't know what integer type
1949 /// it has. The value will later be combined with its type and checked for
1950 /// sanity. PFS is used to convert function-local operands of metadata (since
1951 /// metadata operands are not just parsed here but also converted to values).
1952 /// PFS can be null when we are not parsing metadata values inside a function.
1953 bool LLParser::ParseValID(ValID &ID, PerFunctionState *PFS) {
1954 ID.Loc = Lex.getLoc();
1955 switch (Lex.getKind()) {
1956 default: return TokError("expected value token");
1957 case lltok::GlobalID: // @42
1958 ID.UIntVal = Lex.getUIntVal();
1959 ID.Kind = ValID::t_GlobalID;
1961 case lltok::GlobalVar: // @foo
1962 ID.StrVal = Lex.getStrVal();
1963 ID.Kind = ValID::t_GlobalName;
1965 case lltok::LocalVarID: // %42
1966 ID.UIntVal = Lex.getUIntVal();
1967 ID.Kind = ValID::t_LocalID;
1969 case lltok::LocalVar: // %foo
1970 case lltok::StringConstant: // "foo" - FIXME: REMOVE IN LLVM 3.0
1971 ID.StrVal = Lex.getStrVal();
1972 ID.Kind = ValID::t_LocalName;
1974 case lltok::exclaim: // !{...} MDNode, !"foo" MDString
1977 if (EatIfPresent(lltok::lbrace)) {
1978 SmallVector<Value*, 16> Elts;
1979 if (ParseMDNodeVector(Elts, PFS) ||
1980 ParseToken(lltok::rbrace, "expected end of metadata node"))
1983 ID.MDNodeVal = MDNode::get(Context, Elts.data(), Elts.size());
1984 ID.Kind = ValID::t_MDNode;
1988 // Standalone metadata reference
1989 // !{ ..., !42, ... }
1990 if (Lex.getKind() == lltok::APSInt) {
1991 if (ParseMDNodeID(ID.MDNodeVal)) return true;
1992 ID.Kind = ValID::t_MDNode;
1997 // ::= '!' STRINGCONSTANT
1998 if (ParseMDString(ID.MDStringVal)) return true;
1999 ID.Kind = ValID::t_MDString;
2002 ID.APSIntVal = Lex.getAPSIntVal();
2003 ID.Kind = ValID::t_APSInt;
2005 case lltok::APFloat:
2006 ID.APFloatVal = Lex.getAPFloatVal();
2007 ID.Kind = ValID::t_APFloat;
2009 case lltok::kw_true:
2010 ID.ConstantVal = ConstantInt::getTrue(Context);
2011 ID.Kind = ValID::t_Constant;
2013 case lltok::kw_false:
2014 ID.ConstantVal = ConstantInt::getFalse(Context);
2015 ID.Kind = ValID::t_Constant;
2017 case lltok::kw_null: ID.Kind = ValID::t_Null; break;
2018 case lltok::kw_undef: ID.Kind = ValID::t_Undef; break;
2019 case lltok::kw_zeroinitializer: ID.Kind = ValID::t_Zero; break;
2021 case lltok::lbrace: {
2022 // ValID ::= '{' ConstVector '}'
2024 SmallVector<Constant*, 16> Elts;
2025 if (ParseGlobalValueVector(Elts) ||
2026 ParseToken(lltok::rbrace, "expected end of struct constant"))
2029 ID.ConstantVal = ConstantStruct::get(Context, Elts.data(),
2030 Elts.size(), false);
2031 ID.Kind = ValID::t_Constant;
2035 // ValID ::= '<' ConstVector '>' --> Vector.
2036 // ValID ::= '<' '{' ConstVector '}' '>' --> Packed Struct.
2038 bool isPackedStruct = EatIfPresent(lltok::lbrace);
2040 SmallVector<Constant*, 16> Elts;
2041 LocTy FirstEltLoc = Lex.getLoc();
2042 if (ParseGlobalValueVector(Elts) ||
2044 ParseToken(lltok::rbrace, "expected end of packed struct")) ||
2045 ParseToken(lltok::greater, "expected end of constant"))
2048 if (isPackedStruct) {
2050 ConstantStruct::get(Context, Elts.data(), Elts.size(), true);
2051 ID.Kind = ValID::t_Constant;
2056 return Error(ID.Loc, "constant vector must not be empty");
2058 if (!Elts[0]->getType()->isIntegerTy() &&
2059 !Elts[0]->getType()->isFloatingPointTy())
2060 return Error(FirstEltLoc,
2061 "vector elements must have integer or floating point type");
2063 // Verify that all the vector elements have the same type.
2064 for (unsigned i = 1, e = Elts.size(); i != e; ++i)
2065 if (Elts[i]->getType() != Elts[0]->getType())
2066 return Error(FirstEltLoc,
2067 "vector element #" + utostr(i) +
2068 " is not of type '" + Elts[0]->getType()->getDescription());
2070 ID.ConstantVal = ConstantVector::get(Elts.data(), Elts.size());
2071 ID.Kind = ValID::t_Constant;
2074 case lltok::lsquare: { // Array Constant
2076 SmallVector<Constant*, 16> Elts;
2077 LocTy FirstEltLoc = Lex.getLoc();
2078 if (ParseGlobalValueVector(Elts) ||
2079 ParseToken(lltok::rsquare, "expected end of array constant"))
2082 // Handle empty element.
2084 // Use undef instead of an array because it's inconvenient to determine
2085 // the element type at this point, there being no elements to examine.
2086 ID.Kind = ValID::t_EmptyArray;
2090 if (!Elts[0]->getType()->isFirstClassType())
2091 return Error(FirstEltLoc, "invalid array element type: " +
2092 Elts[0]->getType()->getDescription());
2094 ArrayType *ATy = ArrayType::get(Elts[0]->getType(), Elts.size());
2096 // Verify all elements are correct type!
2097 for (unsigned i = 0, e = Elts.size(); i != e; ++i) {
2098 if (Elts[i]->getType() != Elts[0]->getType())
2099 return Error(FirstEltLoc,
2100 "array element #" + utostr(i) +
2101 " is not of type '" +Elts[0]->getType()->getDescription());
2104 ID.ConstantVal = ConstantArray::get(ATy, Elts.data(), Elts.size());
2105 ID.Kind = ValID::t_Constant;
2108 case lltok::kw_c: // c "foo"
2110 ID.ConstantVal = ConstantArray::get(Context, Lex.getStrVal(), false);
2111 if (ParseToken(lltok::StringConstant, "expected string")) return true;
2112 ID.Kind = ValID::t_Constant;
2115 case lltok::kw_asm: {
2116 // ValID ::= 'asm' SideEffect? AlignStack? STRINGCONSTANT ',' STRINGCONSTANT
2117 bool HasSideEffect, AlignStack;
2119 if (ParseOptionalToken(lltok::kw_sideeffect, HasSideEffect) ||
2120 ParseOptionalToken(lltok::kw_alignstack, AlignStack) ||
2121 ParseStringConstant(ID.StrVal) ||
2122 ParseToken(lltok::comma, "expected comma in inline asm expression") ||
2123 ParseToken(lltok::StringConstant, "expected constraint string"))
2125 ID.StrVal2 = Lex.getStrVal();
2126 ID.UIntVal = unsigned(HasSideEffect) | (unsigned(AlignStack)<<1);
2127 ID.Kind = ValID::t_InlineAsm;
2131 case lltok::kw_blockaddress: {
2132 // ValID ::= 'blockaddress' '(' @foo ',' %bar ')'
2136 LocTy FnLoc, LabelLoc;
2138 if (ParseToken(lltok::lparen, "expected '(' in block address expression") ||
2140 ParseToken(lltok::comma, "expected comma in block address expression")||
2141 ParseValID(Label) ||
2142 ParseToken(lltok::rparen, "expected ')' in block address expression"))
2145 if (Fn.Kind != ValID::t_GlobalID && Fn.Kind != ValID::t_GlobalName)
2146 return Error(Fn.Loc, "expected function name in blockaddress");
2147 if (Label.Kind != ValID::t_LocalID && Label.Kind != ValID::t_LocalName)
2148 return Error(Label.Loc, "expected basic block name in blockaddress");
2150 // Make a global variable as a placeholder for this reference.
2151 GlobalVariable *FwdRef = new GlobalVariable(*M, Type::getInt8Ty(Context),
2152 false, GlobalValue::InternalLinkage,
2154 ForwardRefBlockAddresses[Fn].push_back(std::make_pair(Label, FwdRef));
2155 ID.ConstantVal = FwdRef;
2156 ID.Kind = ValID::t_Constant;
2160 case lltok::kw_trunc:
2161 case lltok::kw_zext:
2162 case lltok::kw_sext:
2163 case lltok::kw_fptrunc:
2164 case lltok::kw_fpext:
2165 case lltok::kw_bitcast:
2166 case lltok::kw_uitofp:
2167 case lltok::kw_sitofp:
2168 case lltok::kw_fptoui:
2169 case lltok::kw_fptosi:
2170 case lltok::kw_inttoptr:
2171 case lltok::kw_ptrtoint: {
2172 unsigned Opc = Lex.getUIntVal();
2173 PATypeHolder DestTy(Type::getVoidTy(Context));
2176 if (ParseToken(lltok::lparen, "expected '(' after constantexpr cast") ||
2177 ParseGlobalTypeAndValue(SrcVal) ||
2178 ParseToken(lltok::kw_to, "expected 'to' in constantexpr cast") ||
2179 ParseType(DestTy) ||
2180 ParseToken(lltok::rparen, "expected ')' at end of constantexpr cast"))
2182 if (!CastInst::castIsValid((Instruction::CastOps)Opc, SrcVal, DestTy))
2183 return Error(ID.Loc, "invalid cast opcode for cast from '" +
2184 SrcVal->getType()->getDescription() + "' to '" +
2185 DestTy->getDescription() + "'");
2186 ID.ConstantVal = ConstantExpr::getCast((Instruction::CastOps)Opc,
2188 ID.Kind = ValID::t_Constant;
2191 case lltok::kw_extractvalue: {
2194 SmallVector<unsigned, 4> Indices;
2195 if (ParseToken(lltok::lparen, "expected '(' in extractvalue constantexpr")||
2196 ParseGlobalTypeAndValue(Val) ||
2197 ParseIndexList(Indices) ||
2198 ParseToken(lltok::rparen, "expected ')' in extractvalue constantexpr"))
2201 if (!Val->getType()->isAggregateType())
2202 return Error(ID.Loc, "extractvalue operand must be aggregate type");
2203 if (!ExtractValueInst::getIndexedType(Val->getType(), Indices.begin(),
2205 return Error(ID.Loc, "invalid indices for extractvalue");
2207 ConstantExpr::getExtractValue(Val, Indices.data(), Indices.size());
2208 ID.Kind = ValID::t_Constant;
2211 case lltok::kw_insertvalue: {
2213 Constant *Val0, *Val1;
2214 SmallVector<unsigned, 4> Indices;
2215 if (ParseToken(lltok::lparen, "expected '(' in insertvalue constantexpr")||
2216 ParseGlobalTypeAndValue(Val0) ||
2217 ParseToken(lltok::comma, "expected comma in insertvalue constantexpr")||
2218 ParseGlobalTypeAndValue(Val1) ||
2219 ParseIndexList(Indices) ||
2220 ParseToken(lltok::rparen, "expected ')' in insertvalue constantexpr"))
2222 if (!Val0->getType()->isAggregateType())
2223 return Error(ID.Loc, "insertvalue operand must be aggregate type");
2224 if (!ExtractValueInst::getIndexedType(Val0->getType(), Indices.begin(),
2226 return Error(ID.Loc, "invalid indices for insertvalue");
2227 ID.ConstantVal = ConstantExpr::getInsertValue(Val0, Val1,
2228 Indices.data(), Indices.size());
2229 ID.Kind = ValID::t_Constant;
2232 case lltok::kw_icmp:
2233 case lltok::kw_fcmp: {
2234 unsigned PredVal, Opc = Lex.getUIntVal();
2235 Constant *Val0, *Val1;
2237 if (ParseCmpPredicate(PredVal, Opc) ||
2238 ParseToken(lltok::lparen, "expected '(' in compare constantexpr") ||
2239 ParseGlobalTypeAndValue(Val0) ||
2240 ParseToken(lltok::comma, "expected comma in compare constantexpr") ||
2241 ParseGlobalTypeAndValue(Val1) ||
2242 ParseToken(lltok::rparen, "expected ')' in compare constantexpr"))
2245 if (Val0->getType() != Val1->getType())
2246 return Error(ID.Loc, "compare operands must have the same type");
2248 CmpInst::Predicate Pred = (CmpInst::Predicate)PredVal;
2250 if (Opc == Instruction::FCmp) {
2251 if (!Val0->getType()->isFPOrFPVectorTy())
2252 return Error(ID.Loc, "fcmp requires floating point operands");
2253 ID.ConstantVal = ConstantExpr::getFCmp(Pred, Val0, Val1);
2255 assert(Opc == Instruction::ICmp && "Unexpected opcode for CmpInst!");
2256 if (!Val0->getType()->isIntOrIntVectorTy() &&
2257 !Val0->getType()->isPointerTy())
2258 return Error(ID.Loc, "icmp requires pointer or integer operands");
2259 ID.ConstantVal = ConstantExpr::getICmp(Pred, Val0, Val1);
2261 ID.Kind = ValID::t_Constant;
2265 // Binary Operators.
2267 case lltok::kw_fadd:
2269 case lltok::kw_fsub:
2271 case lltok::kw_fmul:
2272 case lltok::kw_udiv:
2273 case lltok::kw_sdiv:
2274 case lltok::kw_fdiv:
2275 case lltok::kw_urem:
2276 case lltok::kw_srem:
2277 case lltok::kw_frem: {
2281 unsigned Opc = Lex.getUIntVal();
2282 Constant *Val0, *Val1;
2284 LocTy ModifierLoc = Lex.getLoc();
2285 if (Opc == Instruction::Add ||
2286 Opc == Instruction::Sub ||
2287 Opc == Instruction::Mul) {
2288 if (EatIfPresent(lltok::kw_nuw))
2290 if (EatIfPresent(lltok::kw_nsw)) {
2292 if (EatIfPresent(lltok::kw_nuw))
2295 } else if (Opc == Instruction::SDiv) {
2296 if (EatIfPresent(lltok::kw_exact))
2299 if (ParseToken(lltok::lparen, "expected '(' in binary constantexpr") ||
2300 ParseGlobalTypeAndValue(Val0) ||
2301 ParseToken(lltok::comma, "expected comma in binary constantexpr") ||
2302 ParseGlobalTypeAndValue(Val1) ||
2303 ParseToken(lltok::rparen, "expected ')' in binary constantexpr"))
2305 if (Val0->getType() != Val1->getType())
2306 return Error(ID.Loc, "operands of constexpr must have same type");
2307 if (!Val0->getType()->isIntOrIntVectorTy()) {
2309 return Error(ModifierLoc, "nuw only applies to integer operations");
2311 return Error(ModifierLoc, "nsw only applies to integer operations");
2313 // API compatibility: Accept either integer or floating-point types with
2314 // add, sub, and mul.
2315 if (!Val0->getType()->isIntOrIntVectorTy() &&
2316 !Val0->getType()->isFPOrFPVectorTy())
2317 return Error(ID.Loc,"constexpr requires integer, fp, or vector operands");
2319 if (NUW) Flags |= OverflowingBinaryOperator::NoUnsignedWrap;
2320 if (NSW) Flags |= OverflowingBinaryOperator::NoSignedWrap;
2321 if (Exact) Flags |= SDivOperator::IsExact;
2322 Constant *C = ConstantExpr::get(Opc, Val0, Val1, Flags);
2324 ID.Kind = ValID::t_Constant;
2328 // Logical Operations
2330 case lltok::kw_lshr:
2331 case lltok::kw_ashr:
2334 case lltok::kw_xor: {
2335 unsigned Opc = Lex.getUIntVal();
2336 Constant *Val0, *Val1;
2338 if (ParseToken(lltok::lparen, "expected '(' in logical constantexpr") ||
2339 ParseGlobalTypeAndValue(Val0) ||
2340 ParseToken(lltok::comma, "expected comma in logical constantexpr") ||
2341 ParseGlobalTypeAndValue(Val1) ||
2342 ParseToken(lltok::rparen, "expected ')' in logical constantexpr"))
2344 if (Val0->getType() != Val1->getType())
2345 return Error(ID.Loc, "operands of constexpr must have same type");
2346 if (!Val0->getType()->isIntOrIntVectorTy())
2347 return Error(ID.Loc,
2348 "constexpr requires integer or integer vector operands");
2349 ID.ConstantVal = ConstantExpr::get(Opc, Val0, Val1);
2350 ID.Kind = ValID::t_Constant;
2354 case lltok::kw_getelementptr:
2355 case lltok::kw_shufflevector:
2356 case lltok::kw_insertelement:
2357 case lltok::kw_extractelement:
2358 case lltok::kw_select: {
2359 unsigned Opc = Lex.getUIntVal();
2360 SmallVector<Constant*, 16> Elts;
2361 bool InBounds = false;
2363 if (Opc == Instruction::GetElementPtr)
2364 InBounds = EatIfPresent(lltok::kw_inbounds);
2365 if (ParseToken(lltok::lparen, "expected '(' in constantexpr") ||
2366 ParseGlobalValueVector(Elts) ||
2367 ParseToken(lltok::rparen, "expected ')' in constantexpr"))
2370 if (Opc == Instruction::GetElementPtr) {
2371 if (Elts.size() == 0 || !Elts[0]->getType()->isPointerTy())
2372 return Error(ID.Loc, "getelementptr requires pointer operand");
2374 if (!GetElementPtrInst::getIndexedType(Elts[0]->getType(),
2375 (Value**)(Elts.data() + 1),
2377 return Error(ID.Loc, "invalid indices for getelementptr");
2378 ID.ConstantVal = InBounds ?
2379 ConstantExpr::getInBoundsGetElementPtr(Elts[0],
2382 ConstantExpr::getGetElementPtr(Elts[0],
2383 Elts.data() + 1, Elts.size() - 1);
2384 } else if (Opc == Instruction::Select) {
2385 if (Elts.size() != 3)
2386 return Error(ID.Loc, "expected three operands to select");
2387 if (const char *Reason = SelectInst::areInvalidOperands(Elts[0], Elts[1],
2389 return Error(ID.Loc, Reason);
2390 ID.ConstantVal = ConstantExpr::getSelect(Elts[0], Elts[1], Elts[2]);
2391 } else if (Opc == Instruction::ShuffleVector) {
2392 if (Elts.size() != 3)
2393 return Error(ID.Loc, "expected three operands to shufflevector");
2394 if (!ShuffleVectorInst::isValidOperands(Elts[0], Elts[1], Elts[2]))
2395 return Error(ID.Loc, "invalid operands to shufflevector");
2397 ConstantExpr::getShuffleVector(Elts[0], Elts[1],Elts[2]);
2398 } else if (Opc == Instruction::ExtractElement) {
2399 if (Elts.size() != 2)
2400 return Error(ID.Loc, "expected two operands to extractelement");
2401 if (!ExtractElementInst::isValidOperands(Elts[0], Elts[1]))
2402 return Error(ID.Loc, "invalid extractelement operands");
2403 ID.ConstantVal = ConstantExpr::getExtractElement(Elts[0], Elts[1]);
2405 assert(Opc == Instruction::InsertElement && "Unknown opcode");
2406 if (Elts.size() != 3)
2407 return Error(ID.Loc, "expected three operands to insertelement");
2408 if (!InsertElementInst::isValidOperands(Elts[0], Elts[1], Elts[2]))
2409 return Error(ID.Loc, "invalid insertelement operands");
2411 ConstantExpr::getInsertElement(Elts[0], Elts[1],Elts[2]);
2414 ID.Kind = ValID::t_Constant;
2423 /// ParseGlobalValue - Parse a global value with the specified type.
2424 bool LLParser::ParseGlobalValue(const Type *Ty, Constant *&C) {
2428 bool Parsed = ParseValID(ID) ||
2429 ConvertValIDToValue(Ty, ID, V, NULL);
2430 if (V && !(C = dyn_cast<Constant>(V)))
2431 return Error(ID.Loc, "global values must be constants");
2435 bool LLParser::ParseGlobalTypeAndValue(Constant *&V) {
2436 PATypeHolder Type(Type::getVoidTy(Context));
2437 return ParseType(Type) ||
2438 ParseGlobalValue(Type, V);
2441 /// ParseGlobalValueVector
2443 /// ::= TypeAndValue (',' TypeAndValue)*
2444 bool LLParser::ParseGlobalValueVector(SmallVectorImpl<Constant*> &Elts) {
2446 if (Lex.getKind() == lltok::rbrace ||
2447 Lex.getKind() == lltok::rsquare ||
2448 Lex.getKind() == lltok::greater ||
2449 Lex.getKind() == lltok::rparen)
2453 if (ParseGlobalTypeAndValue(C)) return true;
2456 while (EatIfPresent(lltok::comma)) {
2457 if (ParseGlobalTypeAndValue(C)) return true;
2465 //===----------------------------------------------------------------------===//
2466 // Function Parsing.
2467 //===----------------------------------------------------------------------===//
2469 bool LLParser::ConvertValIDToValue(const Type *Ty, ValID &ID, Value *&V,
2470 PerFunctionState *PFS) {
2471 if (Ty->isFunctionTy())
2472 return Error(ID.Loc, "functions are not values, refer to them as pointers");
2475 default: llvm_unreachable("Unknown ValID!");
2476 case ValID::t_LocalID:
2477 if (!PFS) return Error(ID.Loc, "invalid use of function-local name");
2478 V = PFS->GetVal(ID.UIntVal, Ty, ID.Loc);
2480 case ValID::t_LocalName:
2481 if (!PFS) return Error(ID.Loc, "invalid use of function-local name");
2482 V = PFS->GetVal(ID.StrVal, Ty, ID.Loc);
2484 case ValID::t_InlineAsm: {
2485 const PointerType *PTy = dyn_cast<PointerType>(Ty);
2486 const FunctionType *FTy =
2487 PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
2488 if (!FTy || !InlineAsm::Verify(FTy, ID.StrVal2))
2489 return Error(ID.Loc, "invalid type for inline asm constraint string");
2490 V = InlineAsm::get(FTy, ID.StrVal, ID.StrVal2, ID.UIntVal&1, ID.UIntVal>>1);
2493 case ValID::t_MDNode:
2494 if (!Ty->isMetadataTy())
2495 return Error(ID.Loc, "metadata value must have metadata type");
2498 case ValID::t_MDString:
2499 if (!Ty->isMetadataTy())
2500 return Error(ID.Loc, "metadata value must have metadata type");
2503 case ValID::t_GlobalName:
2504 V = GetGlobalVal(ID.StrVal, Ty, ID.Loc);
2506 case ValID::t_GlobalID:
2507 V = GetGlobalVal(ID.UIntVal, Ty, ID.Loc);
2509 case ValID::t_APSInt:
2510 if (!Ty->isIntegerTy())
2511 return Error(ID.Loc, "integer constant must have integer type");
2512 ID.APSIntVal.extOrTrunc(Ty->getPrimitiveSizeInBits());
2513 V = ConstantInt::get(Context, ID.APSIntVal);
2515 case ValID::t_APFloat:
2516 if (!Ty->isFloatingPointTy() ||
2517 !ConstantFP::isValueValidForType(Ty, ID.APFloatVal))
2518 return Error(ID.Loc, "floating point constant invalid for type");
2520 // The lexer has no type info, so builds all float and double FP constants
2521 // as double. Fix this here. Long double does not need this.
2522 if (&ID.APFloatVal.getSemantics() == &APFloat::IEEEdouble &&
2525 ID.APFloatVal.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven,
2528 V = ConstantFP::get(Context, ID.APFloatVal);
2530 if (V->getType() != Ty)
2531 return Error(ID.Loc, "floating point constant does not have type '" +
2532 Ty->getDescription() + "'");
2536 if (!Ty->isPointerTy())
2537 return Error(ID.Loc, "null must be a pointer type");
2538 V = ConstantPointerNull::get(cast<PointerType>(Ty));
2540 case ValID::t_Undef:
2541 // FIXME: LabelTy should not be a first-class type.
2542 if ((!Ty->isFirstClassType() || Ty->isLabelTy()) &&
2544 return Error(ID.Loc, "invalid type for undef constant");
2545 V = UndefValue::get(Ty);
2547 case ValID::t_EmptyArray:
2548 if (!Ty->isArrayTy() || cast<ArrayType>(Ty)->getNumElements() != 0)
2549 return Error(ID.Loc, "invalid empty array initializer");
2550 V = UndefValue::get(Ty);
2553 // FIXME: LabelTy should not be a first-class type.
2554 if (!Ty->isFirstClassType() || Ty->isLabelTy())
2555 return Error(ID.Loc, "invalid type for null constant");
2556 V = Constant::getNullValue(Ty);
2558 case ValID::t_Constant:
2559 if (ID.ConstantVal->getType() != Ty) {
2560 // Allow a constant struct with a single member to be converted
2561 // to a union, if the union has a member which is the same type
2562 // as the struct member.
2563 if (const UnionType* utype = dyn_cast<UnionType>(Ty)) {
2564 return ParseUnionValue(utype, ID, V);
2567 return Error(ID.Loc, "constant expression type mismatch");
2575 bool LLParser::ParseValue(const Type *Ty, Value *&V, PerFunctionState &PFS) {
2578 return ParseValID(ID, &PFS) ||
2579 ConvertValIDToValue(Ty, ID, V, &PFS);
2582 bool LLParser::ParseTypeAndValue(Value *&V, PerFunctionState &PFS) {
2583 PATypeHolder T(Type::getVoidTy(Context));
2584 return ParseType(T) ||
2585 ParseValue(T, V, PFS);
2588 bool LLParser::ParseTypeAndBasicBlock(BasicBlock *&BB, LocTy &Loc,
2589 PerFunctionState &PFS) {
2592 if (ParseTypeAndValue(V, PFS)) return true;
2593 if (!isa<BasicBlock>(V))
2594 return Error(Loc, "expected a basic block");
2595 BB = cast<BasicBlock>(V);
2599 bool LLParser::ParseUnionValue(const UnionType* utype, ValID &ID, Value *&V) {
2600 if (const StructType* stype = dyn_cast<StructType>(ID.ConstantVal->getType())) {
2601 if (stype->getNumContainedTypes() != 1)
2602 return Error(ID.Loc, "constant expression type mismatch");
2603 int index = utype->getElementTypeIndex(stype->getContainedType(0));
2605 return Error(ID.Loc, "initializer type is not a member of the union");
2607 V = ConstantUnion::get(
2608 utype, cast<Constant>(ID.ConstantVal->getOperand(0)));
2612 return Error(ID.Loc, "constant expression type mismatch");
2617 /// ::= OptionalLinkage OptionalVisibility OptionalCallingConv OptRetAttrs
2618 /// Type GlobalName '(' ArgList ')' OptFuncAttrs OptSection
2619 /// OptionalAlign OptGC
2620 bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) {
2621 // Parse the linkage.
2622 LocTy LinkageLoc = Lex.getLoc();
2625 unsigned Visibility, RetAttrs;
2627 PATypeHolder RetType(Type::getVoidTy(Context));
2628 LocTy RetTypeLoc = Lex.getLoc();
2629 if (ParseOptionalLinkage(Linkage) ||
2630 ParseOptionalVisibility(Visibility) ||
2631 ParseOptionalCallingConv(CC) ||
2632 ParseOptionalAttrs(RetAttrs, 1) ||
2633 ParseType(RetType, RetTypeLoc, true /*void allowed*/))
2636 // Verify that the linkage is ok.
2637 switch ((GlobalValue::LinkageTypes)Linkage) {
2638 case GlobalValue::ExternalLinkage:
2639 break; // always ok.
2640 case GlobalValue::DLLImportLinkage:
2641 case GlobalValue::ExternalWeakLinkage:
2643 return Error(LinkageLoc, "invalid linkage for function definition");
2645 case GlobalValue::PrivateLinkage:
2646 case GlobalValue::LinkerPrivateLinkage:
2647 case GlobalValue::InternalLinkage:
2648 case GlobalValue::AvailableExternallyLinkage:
2649 case GlobalValue::LinkOnceAnyLinkage:
2650 case GlobalValue::LinkOnceODRLinkage:
2651 case GlobalValue::WeakAnyLinkage:
2652 case GlobalValue::WeakODRLinkage:
2653 case GlobalValue::DLLExportLinkage:
2655 return Error(LinkageLoc, "invalid linkage for function declaration");
2657 case GlobalValue::AppendingLinkage:
2658 case GlobalValue::CommonLinkage:
2659 return Error(LinkageLoc, "invalid function linkage type");
2662 if (!FunctionType::isValidReturnType(RetType) ||
2663 RetType->isOpaqueTy())
2664 return Error(RetTypeLoc, "invalid function return type");
2666 LocTy NameLoc = Lex.getLoc();
2668 std::string FunctionName;
2669 if (Lex.getKind() == lltok::GlobalVar) {
2670 FunctionName = Lex.getStrVal();
2671 } else if (Lex.getKind() == lltok::GlobalID) { // @42 is ok.
2672 unsigned NameID = Lex.getUIntVal();
2674 if (NameID != NumberedVals.size())
2675 return TokError("function expected to be numbered '%" +
2676 utostr(NumberedVals.size()) + "'");
2678 return TokError("expected function name");
2683 if (Lex.getKind() != lltok::lparen)
2684 return TokError("expected '(' in function argument list");
2686 std::vector<ArgInfo> ArgList;
2689 std::string Section;
2693 if (ParseArgumentList(ArgList, isVarArg, false) ||
2694 ParseOptionalAttrs(FuncAttrs, 2) ||
2695 (EatIfPresent(lltok::kw_section) &&
2696 ParseStringConstant(Section)) ||
2697 ParseOptionalAlignment(Alignment) ||
2698 (EatIfPresent(lltok::kw_gc) &&
2699 ParseStringConstant(GC)))
2702 // If the alignment was parsed as an attribute, move to the alignment field.
2703 if (FuncAttrs & Attribute::Alignment) {
2704 Alignment = Attribute::getAlignmentFromAttrs(FuncAttrs);
2705 FuncAttrs &= ~Attribute::Alignment;
2708 // Okay, if we got here, the function is syntactically valid. Convert types
2709 // and do semantic checks.
2710 std::vector<const Type*> ParamTypeList;
2711 SmallVector<AttributeWithIndex, 8> Attrs;
2712 // FIXME : In 3.0, stop accepting zext, sext and inreg as optional function
2714 unsigned ObsoleteFuncAttrs = Attribute::ZExt|Attribute::SExt|Attribute::InReg;
2715 if (FuncAttrs & ObsoleteFuncAttrs) {
2716 RetAttrs |= FuncAttrs & ObsoleteFuncAttrs;
2717 FuncAttrs &= ~ObsoleteFuncAttrs;
2720 if (RetAttrs != Attribute::None)
2721 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
2723 for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
2724 ParamTypeList.push_back(ArgList[i].Type);
2725 if (ArgList[i].Attrs != Attribute::None)
2726 Attrs.push_back(AttributeWithIndex::get(i+1, ArgList[i].Attrs));
2729 if (FuncAttrs != Attribute::None)
2730 Attrs.push_back(AttributeWithIndex::get(~0, FuncAttrs));
2732 AttrListPtr PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
2734 if (PAL.paramHasAttr(1, Attribute::StructRet) && !RetType->isVoidTy())
2735 return Error(RetTypeLoc, "functions with 'sret' argument must return void");
2737 const FunctionType *FT =
2738 FunctionType::get(RetType, ParamTypeList, isVarArg);
2739 const PointerType *PFT = PointerType::getUnqual(FT);
2742 if (!FunctionName.empty()) {
2743 // If this was a definition of a forward reference, remove the definition
2744 // from the forward reference table and fill in the forward ref.
2745 std::map<std::string, std::pair<GlobalValue*, LocTy> >::iterator FRVI =
2746 ForwardRefVals.find(FunctionName);
2747 if (FRVI != ForwardRefVals.end()) {
2748 Fn = M->getFunction(FunctionName);
2749 ForwardRefVals.erase(FRVI);
2750 } else if ((Fn = M->getFunction(FunctionName))) {
2751 // If this function already exists in the symbol table, then it is
2752 // multiply defined. We accept a few cases for old backwards compat.
2753 // FIXME: Remove this stuff for LLVM 3.0.
2754 if (Fn->getType() != PFT || Fn->getAttributes() != PAL ||
2755 (!Fn->isDeclaration() && isDefine)) {
2756 // If the redefinition has different type or different attributes,
2757 // reject it. If both have bodies, reject it.
2758 return Error(NameLoc, "invalid redefinition of function '" +
2759 FunctionName + "'");
2760 } else if (Fn->isDeclaration()) {
2761 // Make sure to strip off any argument names so we can't get conflicts.
2762 for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
2766 } else if (M->getNamedValue(FunctionName)) {
2767 return Error(NameLoc, "redefinition of function '@" + FunctionName + "'");
2771 // If this is a definition of a forward referenced function, make sure the
2773 std::map<unsigned, std::pair<GlobalValue*, LocTy> >::iterator I
2774 = ForwardRefValIDs.find(NumberedVals.size());
2775 if (I != ForwardRefValIDs.end()) {
2776 Fn = cast<Function>(I->second.first);
2777 if (Fn->getType() != PFT)
2778 return Error(NameLoc, "type of definition and forward reference of '@" +
2779 utostr(NumberedVals.size()) +"' disagree");
2780 ForwardRefValIDs.erase(I);
2785 Fn = Function::Create(FT, GlobalValue::ExternalLinkage, FunctionName, M);
2786 else // Move the forward-reference to the correct spot in the module.
2787 M->getFunctionList().splice(M->end(), M->getFunctionList(), Fn);
2789 if (FunctionName.empty())
2790 NumberedVals.push_back(Fn);
2792 Fn->setLinkage((GlobalValue::LinkageTypes)Linkage);
2793 Fn->setVisibility((GlobalValue::VisibilityTypes)Visibility);
2794 Fn->setCallingConv(CC);
2795 Fn->setAttributes(PAL);
2796 Fn->setAlignment(Alignment);
2797 Fn->setSection(Section);
2798 if (!GC.empty()) Fn->setGC(GC.c_str());
2800 // Add all of the arguments we parsed to the function.
2801 Function::arg_iterator ArgIt = Fn->arg_begin();
2802 for (unsigned i = 0, e = ArgList.size(); i != e; ++i, ++ArgIt) {
2803 // If we run out of arguments in the Function prototype, exit early.
2804 // FIXME: REMOVE THIS IN LLVM 3.0, this is just for the mismatch case above.
2805 if (ArgIt == Fn->arg_end()) break;
2807 // If the argument has a name, insert it into the argument symbol table.
2808 if (ArgList[i].Name.empty()) continue;
2810 // Set the name, if it conflicted, it will be auto-renamed.
2811 ArgIt->setName(ArgList[i].Name);
2813 if (ArgIt->getNameStr() != ArgList[i].Name)
2814 return Error(ArgList[i].Loc, "redefinition of argument '%" +
2815 ArgList[i].Name + "'");
2822 /// ParseFunctionBody
2823 /// ::= '{' BasicBlock+ '}'
2824 /// ::= 'begin' BasicBlock+ 'end' // FIXME: remove in LLVM 3.0
2826 bool LLParser::ParseFunctionBody(Function &Fn) {
2827 if (Lex.getKind() != lltok::lbrace && Lex.getKind() != lltok::kw_begin)
2828 return TokError("expected '{' in function body");
2829 Lex.Lex(); // eat the {.
2831 int FunctionNumber = -1;
2832 if (!Fn.hasName()) FunctionNumber = NumberedVals.size()-1;
2834 PerFunctionState PFS(*this, Fn, FunctionNumber);
2836 // We need at least one basic block.
2837 if (Lex.getKind() == lltok::rbrace || Lex.getKind() == lltok::kw_end)
2838 return TokError("function body requires at least one basic block");
2840 while (Lex.getKind() != lltok::rbrace && Lex.getKind() != lltok::kw_end)
2841 if (ParseBasicBlock(PFS)) return true;
2846 // Verify function is ok.
2847 return PFS.FinishFunction();
2851 /// ::= LabelStr? Instruction*
2852 bool LLParser::ParseBasicBlock(PerFunctionState &PFS) {
2853 // If this basic block starts out with a name, remember it.
2855 LocTy NameLoc = Lex.getLoc();
2856 if (Lex.getKind() == lltok::LabelStr) {
2857 Name = Lex.getStrVal();
2861 BasicBlock *BB = PFS.DefineBB(Name, NameLoc);
2862 if (BB == 0) return true;
2864 std::string NameStr;
2866 // Parse the instructions in this block until we get a terminator.
2868 SmallVector<std::pair<unsigned, MDNode *>, 4> MetadataOnInst;
2870 // This instruction may have three possibilities for a name: a) none
2871 // specified, b) name specified "%foo =", c) number specified: "%4 =".
2872 LocTy NameLoc = Lex.getLoc();
2876 if (Lex.getKind() == lltok::LocalVarID) {
2877 NameID = Lex.getUIntVal();
2879 if (ParseToken(lltok::equal, "expected '=' after instruction id"))
2881 } else if (Lex.getKind() == lltok::LocalVar ||
2882 // FIXME: REMOVE IN LLVM 3.0
2883 Lex.getKind() == lltok::StringConstant) {
2884 NameStr = Lex.getStrVal();
2886 if (ParseToken(lltok::equal, "expected '=' after instruction name"))
2890 switch (ParseInstruction(Inst, BB, PFS)) {
2891 default: assert(0 && "Unknown ParseInstruction result!");
2892 case InstError: return true;
2894 // With a normal result, we check to see if the instruction is followed by
2895 // a comma and metadata.
2896 if (EatIfPresent(lltok::comma))
2897 if (ParseInstructionMetadata(Inst))
2900 case InstExtraComma:
2901 // If the instruction parser ate an extra comma at the end of it, it
2902 // *must* be followed by metadata.
2903 if (ParseInstructionMetadata(Inst))
2908 BB->getInstList().push_back(Inst);
2910 // Set the name on the instruction.
2911 if (PFS.SetInstName(NameID, NameStr, NameLoc, Inst)) return true;
2912 } while (!isa<TerminatorInst>(Inst));
2917 //===----------------------------------------------------------------------===//
2918 // Instruction Parsing.
2919 //===----------------------------------------------------------------------===//
2921 /// ParseInstruction - Parse one of the many different instructions.
2923 int LLParser::ParseInstruction(Instruction *&Inst, BasicBlock *BB,
2924 PerFunctionState &PFS) {
2925 lltok::Kind Token = Lex.getKind();
2926 if (Token == lltok::Eof)
2927 return TokError("found end of file when expecting more instructions");
2928 LocTy Loc = Lex.getLoc();
2929 unsigned KeywordVal = Lex.getUIntVal();
2930 Lex.Lex(); // Eat the keyword.
2933 default: return Error(Loc, "expected instruction opcode");
2934 // Terminator Instructions.
2935 case lltok::kw_unwind: Inst = new UnwindInst(Context); return false;
2936 case lltok::kw_unreachable: Inst = new UnreachableInst(Context); return false;
2937 case lltok::kw_ret: return ParseRet(Inst, BB, PFS);
2938 case lltok::kw_br: return ParseBr(Inst, PFS);
2939 case lltok::kw_switch: return ParseSwitch(Inst, PFS);
2940 case lltok::kw_indirectbr: return ParseIndirectBr(Inst, PFS);
2941 case lltok::kw_invoke: return ParseInvoke(Inst, PFS);
2942 // Binary Operators.
2945 case lltok::kw_mul: {
2948 LocTy ModifierLoc = Lex.getLoc();
2949 if (EatIfPresent(lltok::kw_nuw))
2951 if (EatIfPresent(lltok::kw_nsw)) {
2953 if (EatIfPresent(lltok::kw_nuw))
2956 // API compatibility: Accept either integer or floating-point types.
2957 bool Result = ParseArithmetic(Inst, PFS, KeywordVal, 0);
2959 if (!Inst->getType()->isIntOrIntVectorTy()) {
2961 return Error(ModifierLoc, "nuw only applies to integer operations");
2963 return Error(ModifierLoc, "nsw only applies to integer operations");
2966 cast<BinaryOperator>(Inst)->setHasNoUnsignedWrap(true);
2968 cast<BinaryOperator>(Inst)->setHasNoSignedWrap(true);
2972 case lltok::kw_fadd:
2973 case lltok::kw_fsub:
2974 case lltok::kw_fmul: return ParseArithmetic(Inst, PFS, KeywordVal, 2);
2976 case lltok::kw_sdiv: {
2978 if (EatIfPresent(lltok::kw_exact))
2980 bool Result = ParseArithmetic(Inst, PFS, KeywordVal, 1);
2983 cast<BinaryOperator>(Inst)->setIsExact(true);
2987 case lltok::kw_udiv:
2988 case lltok::kw_urem:
2989 case lltok::kw_srem: return ParseArithmetic(Inst, PFS, KeywordVal, 1);
2990 case lltok::kw_fdiv:
2991 case lltok::kw_frem: return ParseArithmetic(Inst, PFS, KeywordVal, 2);
2993 case lltok::kw_lshr:
2994 case lltok::kw_ashr:
2997 case lltok::kw_xor: return ParseLogical(Inst, PFS, KeywordVal);
2998 case lltok::kw_icmp:
2999 case lltok::kw_fcmp: return ParseCompare(Inst, PFS, KeywordVal);
3001 case lltok::kw_trunc:
3002 case lltok::kw_zext:
3003 case lltok::kw_sext:
3004 case lltok::kw_fptrunc:
3005 case lltok::kw_fpext:
3006 case lltok::kw_bitcast:
3007 case lltok::kw_uitofp:
3008 case lltok::kw_sitofp:
3009 case lltok::kw_fptoui:
3010 case lltok::kw_fptosi:
3011 case lltok::kw_inttoptr:
3012 case lltok::kw_ptrtoint: return ParseCast(Inst, PFS, KeywordVal);
3014 case lltok::kw_select: return ParseSelect(Inst, PFS);
3015 case lltok::kw_va_arg: return ParseVA_Arg(Inst, PFS);
3016 case lltok::kw_extractelement: return ParseExtractElement(Inst, PFS);
3017 case lltok::kw_insertelement: return ParseInsertElement(Inst, PFS);
3018 case lltok::kw_shufflevector: return ParseShuffleVector(Inst, PFS);
3019 case lltok::kw_phi: return ParsePHI(Inst, PFS);
3020 case lltok::kw_call: return ParseCall(Inst, PFS, false);
3021 case lltok::kw_tail: return ParseCall(Inst, PFS, true);
3023 case lltok::kw_alloca: return ParseAlloc(Inst, PFS);
3024 case lltok::kw_malloc: return ParseAlloc(Inst, PFS, BB, false);
3025 case lltok::kw_free: return ParseFree(Inst, PFS, BB);
3026 case lltok::kw_load: return ParseLoad(Inst, PFS, false);
3027 case lltok::kw_store: return ParseStore(Inst, PFS, false);
3028 case lltok::kw_volatile:
3029 if (EatIfPresent(lltok::kw_load))
3030 return ParseLoad(Inst, PFS, true);
3031 else if (EatIfPresent(lltok::kw_store))
3032 return ParseStore(Inst, PFS, true);
3034 return TokError("expected 'load' or 'store'");
3035 case lltok::kw_getresult: return ParseGetResult(Inst, PFS);
3036 case lltok::kw_getelementptr: return ParseGetElementPtr(Inst, PFS);
3037 case lltok::kw_extractvalue: return ParseExtractValue(Inst, PFS);
3038 case lltok::kw_insertvalue: return ParseInsertValue(Inst, PFS);
3042 /// ParseCmpPredicate - Parse an integer or fp predicate, based on Kind.
3043 bool LLParser::ParseCmpPredicate(unsigned &P, unsigned Opc) {
3044 if (Opc == Instruction::FCmp) {
3045 switch (Lex.getKind()) {
3046 default: TokError("expected fcmp predicate (e.g. 'oeq')");
3047 case lltok::kw_oeq: P = CmpInst::FCMP_OEQ; break;
3048 case lltok::kw_one: P = CmpInst::FCMP_ONE; break;
3049 case lltok::kw_olt: P = CmpInst::FCMP_OLT; break;
3050 case lltok::kw_ogt: P = CmpInst::FCMP_OGT; break;
3051 case lltok::kw_ole: P = CmpInst::FCMP_OLE; break;
3052 case lltok::kw_oge: P = CmpInst::FCMP_OGE; break;
3053 case lltok::kw_ord: P = CmpInst::FCMP_ORD; break;
3054 case lltok::kw_uno: P = CmpInst::FCMP_UNO; break;
3055 case lltok::kw_ueq: P = CmpInst::FCMP_UEQ; break;
3056 case lltok::kw_une: P = CmpInst::FCMP_UNE; break;
3057 case lltok::kw_ult: P = CmpInst::FCMP_ULT; break;
3058 case lltok::kw_ugt: P = CmpInst::FCMP_UGT; break;
3059 case lltok::kw_ule: P = CmpInst::FCMP_ULE; break;
3060 case lltok::kw_uge: P = CmpInst::FCMP_UGE; break;
3061 case lltok::kw_true: P = CmpInst::FCMP_TRUE; break;
3062 case lltok::kw_false: P = CmpInst::FCMP_FALSE; break;
3065 switch (Lex.getKind()) {
3066 default: TokError("expected icmp predicate (e.g. 'eq')");
3067 case lltok::kw_eq: P = CmpInst::ICMP_EQ; break;
3068 case lltok::kw_ne: P = CmpInst::ICMP_NE; break;
3069 case lltok::kw_slt: P = CmpInst::ICMP_SLT; break;
3070 case lltok::kw_sgt: P = CmpInst::ICMP_SGT; break;
3071 case lltok::kw_sle: P = CmpInst::ICMP_SLE; break;
3072 case lltok::kw_sge: P = CmpInst::ICMP_SGE; break;
3073 case lltok::kw_ult: P = CmpInst::ICMP_ULT; break;
3074 case lltok::kw_ugt: P = CmpInst::ICMP_UGT; break;
3075 case lltok::kw_ule: P = CmpInst::ICMP_ULE; break;
3076 case lltok::kw_uge: P = CmpInst::ICMP_UGE; break;
3083 //===----------------------------------------------------------------------===//
3084 // Terminator Instructions.
3085 //===----------------------------------------------------------------------===//
3087 /// ParseRet - Parse a return instruction.
3088 /// ::= 'ret' void (',' !dbg, !1)*
3089 /// ::= 'ret' TypeAndValue (',' !dbg, !1)*
3090 /// ::= 'ret' TypeAndValue (',' TypeAndValue)+ (',' !dbg, !1)*
3091 /// [[obsolete: LLVM 3.0]]
3092 int LLParser::ParseRet(Instruction *&Inst, BasicBlock *BB,
3093 PerFunctionState &PFS) {
3094 PATypeHolder Ty(Type::getVoidTy(Context));
3095 if (ParseType(Ty, true /*void allowed*/)) return true;
3097 if (Ty->isVoidTy()) {
3098 Inst = ReturnInst::Create(Context);
3103 if (ParseValue(Ty, RV, PFS)) return true;
3105 bool ExtraComma = false;
3106 if (EatIfPresent(lltok::comma)) {
3107 // Parse optional custom metadata, e.g. !dbg
3108 if (Lex.getKind() == lltok::MetadataVar) {
3111 // The normal case is one return value.
3112 // FIXME: LLVM 3.0 remove MRV support for 'ret i32 1, i32 2', requiring
3113 // use of 'ret {i32,i32} {i32 1, i32 2}'
3114 SmallVector<Value*, 8> RVs;
3118 // If optional custom metadata, e.g. !dbg is seen then this is the
3120 if (Lex.getKind() == lltok::MetadataVar)
3122 if (ParseTypeAndValue(RV, PFS)) return true;
3124 } while (EatIfPresent(lltok::comma));
3126 RV = UndefValue::get(PFS.getFunction().getReturnType());
3127 for (unsigned i = 0, e = RVs.size(); i != e; ++i) {
3128 Instruction *I = InsertValueInst::Create(RV, RVs[i], i, "mrv");
3129 BB->getInstList().push_back(I);
3135 Inst = ReturnInst::Create(Context, RV);
3136 return ExtraComma ? InstExtraComma : InstNormal;
3141 /// ::= 'br' TypeAndValue
3142 /// ::= 'br' TypeAndValue ',' TypeAndValue ',' TypeAndValue
3143 bool LLParser::ParseBr(Instruction *&Inst, PerFunctionState &PFS) {
3146 BasicBlock *Op1, *Op2;
3147 if (ParseTypeAndValue(Op0, Loc, PFS)) return true;
3149 if (BasicBlock *BB = dyn_cast<BasicBlock>(Op0)) {
3150 Inst = BranchInst::Create(BB);
3154 if (Op0->getType() != Type::getInt1Ty(Context))
3155 return Error(Loc, "branch condition must have 'i1' type");
3157 if (ParseToken(lltok::comma, "expected ',' after branch condition") ||
3158 ParseTypeAndBasicBlock(Op1, Loc, PFS) ||
3159 ParseToken(lltok::comma, "expected ',' after true destination") ||
3160 ParseTypeAndBasicBlock(Op2, Loc2, PFS))
3163 Inst = BranchInst::Create(Op1, Op2, Op0);
3169 /// ::= 'switch' TypeAndValue ',' TypeAndValue '[' JumpTable ']'
3171 /// ::= (TypeAndValue ',' TypeAndValue)*
3172 bool LLParser::ParseSwitch(Instruction *&Inst, PerFunctionState &PFS) {
3173 LocTy CondLoc, BBLoc;
3175 BasicBlock *DefaultBB;
3176 if (ParseTypeAndValue(Cond, CondLoc, PFS) ||
3177 ParseToken(lltok::comma, "expected ',' after switch condition") ||
3178 ParseTypeAndBasicBlock(DefaultBB, BBLoc, PFS) ||
3179 ParseToken(lltok::lsquare, "expected '[' with switch table"))
3182 if (!Cond->getType()->isIntegerTy())
3183 return Error(CondLoc, "switch condition must have integer type");
3185 // Parse the jump table pairs.
3186 SmallPtrSet<Value*, 32> SeenCases;
3187 SmallVector<std::pair<ConstantInt*, BasicBlock*>, 32> Table;
3188 while (Lex.getKind() != lltok::rsquare) {
3192 if (ParseTypeAndValue(Constant, CondLoc, PFS) ||
3193 ParseToken(lltok::comma, "expected ',' after case value") ||
3194 ParseTypeAndBasicBlock(DestBB, PFS))
3197 if (!SeenCases.insert(Constant))
3198 return Error(CondLoc, "duplicate case value in switch");
3199 if (!isa<ConstantInt>(Constant))
3200 return Error(CondLoc, "case value is not a constant integer");
3202 Table.push_back(std::make_pair(cast<ConstantInt>(Constant), DestBB));
3205 Lex.Lex(); // Eat the ']'.
3207 SwitchInst *SI = SwitchInst::Create(Cond, DefaultBB, Table.size());
3208 for (unsigned i = 0, e = Table.size(); i != e; ++i)
3209 SI->addCase(Table[i].first, Table[i].second);
3216 /// ::= 'indirectbr' TypeAndValue ',' '[' LabelList ']'
3217 bool LLParser::ParseIndirectBr(Instruction *&Inst, PerFunctionState &PFS) {
3220 if (ParseTypeAndValue(Address, AddrLoc, PFS) ||
3221 ParseToken(lltok::comma, "expected ',' after indirectbr address") ||
3222 ParseToken(lltok::lsquare, "expected '[' with indirectbr"))
3225 if (!Address->getType()->isPointerTy())
3226 return Error(AddrLoc, "indirectbr address must have pointer type");
3228 // Parse the destination list.
3229 SmallVector<BasicBlock*, 16> DestList;
3231 if (Lex.getKind() != lltok::rsquare) {
3233 if (ParseTypeAndBasicBlock(DestBB, PFS))
3235 DestList.push_back(DestBB);
3237 while (EatIfPresent(lltok::comma)) {
3238 if (ParseTypeAndBasicBlock(DestBB, PFS))
3240 DestList.push_back(DestBB);
3244 if (ParseToken(lltok::rsquare, "expected ']' at end of block list"))
3247 IndirectBrInst *IBI = IndirectBrInst::Create(Address, DestList.size());
3248 for (unsigned i = 0, e = DestList.size(); i != e; ++i)
3249 IBI->addDestination(DestList[i]);
3256 /// ::= 'invoke' OptionalCallingConv OptionalAttrs Type Value ParamList
3257 /// OptionalAttrs 'to' TypeAndValue 'unwind' TypeAndValue
3258 bool LLParser::ParseInvoke(Instruction *&Inst, PerFunctionState &PFS) {
3259 LocTy CallLoc = Lex.getLoc();
3260 unsigned RetAttrs, FnAttrs;
3262 PATypeHolder RetType(Type::getVoidTy(Context));
3265 SmallVector<ParamInfo, 16> ArgList;
3267 BasicBlock *NormalBB, *UnwindBB;
3268 if (ParseOptionalCallingConv(CC) ||
3269 ParseOptionalAttrs(RetAttrs, 1) ||
3270 ParseType(RetType, RetTypeLoc, true /*void allowed*/) ||
3271 ParseValID(CalleeID) ||
3272 ParseParameterList(ArgList, PFS) ||
3273 ParseOptionalAttrs(FnAttrs, 2) ||
3274 ParseToken(lltok::kw_to, "expected 'to' in invoke") ||
3275 ParseTypeAndBasicBlock(NormalBB, PFS) ||
3276 ParseToken(lltok::kw_unwind, "expected 'unwind' in invoke") ||
3277 ParseTypeAndBasicBlock(UnwindBB, PFS))
3280 // If RetType is a non-function pointer type, then this is the short syntax
3281 // for the call, which means that RetType is just the return type. Infer the
3282 // rest of the function argument types from the arguments that are present.
3283 const PointerType *PFTy = 0;
3284 const FunctionType *Ty = 0;
3285 if (!(PFTy = dyn_cast<PointerType>(RetType)) ||
3286 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3287 // Pull out the types of all of the arguments...
3288 std::vector<const Type*> ParamTypes;
3289 for (unsigned i = 0, e = ArgList.size(); i != e; ++i)
3290 ParamTypes.push_back(ArgList[i].V->getType());
3292 if (!FunctionType::isValidReturnType(RetType))
3293 return Error(RetTypeLoc, "Invalid result type for LLVM function");
3295 Ty = FunctionType::get(RetType, ParamTypes, false);
3296 PFTy = PointerType::getUnqual(Ty);
3299 // Look up the callee.
3301 if (ConvertValIDToValue(PFTy, CalleeID, Callee, &PFS)) return true;
3303 // FIXME: In LLVM 3.0, stop accepting zext, sext and inreg as optional
3304 // function attributes.
3305 unsigned ObsoleteFuncAttrs = Attribute::ZExt|Attribute::SExt|Attribute::InReg;
3306 if (FnAttrs & ObsoleteFuncAttrs) {
3307 RetAttrs |= FnAttrs & ObsoleteFuncAttrs;
3308 FnAttrs &= ~ObsoleteFuncAttrs;
3311 // Set up the Attributes for the function.
3312 SmallVector<AttributeWithIndex, 8> Attrs;
3313 if (RetAttrs != Attribute::None)
3314 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
3316 SmallVector<Value*, 8> Args;
3318 // Loop through FunctionType's arguments and ensure they are specified
3319 // correctly. Also, gather any parameter attributes.
3320 FunctionType::param_iterator I = Ty->param_begin();
3321 FunctionType::param_iterator E = Ty->param_end();
3322 for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
3323 const Type *ExpectedTy = 0;
3326 } else if (!Ty->isVarArg()) {
3327 return Error(ArgList[i].Loc, "too many arguments specified");
3330 if (ExpectedTy && ExpectedTy != ArgList[i].V->getType())
3331 return Error(ArgList[i].Loc, "argument is not of expected type '" +
3332 ExpectedTy->getDescription() + "'");
3333 Args.push_back(ArgList[i].V);
3334 if (ArgList[i].Attrs != Attribute::None)
3335 Attrs.push_back(AttributeWithIndex::get(i+1, ArgList[i].Attrs));
3339 return Error(CallLoc, "not enough parameters specified for call");
3341 if (FnAttrs != Attribute::None)
3342 Attrs.push_back(AttributeWithIndex::get(~0, FnAttrs));
3344 // Finish off the Attributes and check them
3345 AttrListPtr PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
3347 InvokeInst *II = InvokeInst::Create(Callee, NormalBB, UnwindBB,
3348 Args.begin(), Args.end());
3349 II->setCallingConv(CC);
3350 II->setAttributes(PAL);
3357 //===----------------------------------------------------------------------===//
3358 // Binary Operators.
3359 //===----------------------------------------------------------------------===//
3362 /// ::= ArithmeticOps TypeAndValue ',' Value
3364 /// If OperandType is 0, then any FP or integer operand is allowed. If it is 1,
3365 /// then any integer operand is allowed, if it is 2, any fp operand is allowed.
3366 bool LLParser::ParseArithmetic(Instruction *&Inst, PerFunctionState &PFS,
3367 unsigned Opc, unsigned OperandType) {
3368 LocTy Loc; Value *LHS, *RHS;
3369 if (ParseTypeAndValue(LHS, Loc, PFS) ||
3370 ParseToken(lltok::comma, "expected ',' in arithmetic operation") ||
3371 ParseValue(LHS->getType(), RHS, PFS))
3375 switch (OperandType) {
3376 default: llvm_unreachable("Unknown operand type!");
3377 case 0: // int or FP.
3378 Valid = LHS->getType()->isIntOrIntVectorTy() ||
3379 LHS->getType()->isFPOrFPVectorTy();
3381 case 1: Valid = LHS->getType()->isIntOrIntVectorTy(); break;
3382 case 2: Valid = LHS->getType()->isFPOrFPVectorTy(); break;
3386 return Error(Loc, "invalid operand type for instruction");
3388 Inst = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS);
3393 /// ::= ArithmeticOps TypeAndValue ',' Value {
3394 bool LLParser::ParseLogical(Instruction *&Inst, PerFunctionState &PFS,
3396 LocTy Loc; Value *LHS, *RHS;
3397 if (ParseTypeAndValue(LHS, Loc, PFS) ||
3398 ParseToken(lltok::comma, "expected ',' in logical operation") ||
3399 ParseValue(LHS->getType(), RHS, PFS))
3402 if (!LHS->getType()->isIntOrIntVectorTy())
3403 return Error(Loc,"instruction requires integer or integer vector operands");
3405 Inst = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS);
3411 /// ::= 'icmp' IPredicates TypeAndValue ',' Value
3412 /// ::= 'fcmp' FPredicates TypeAndValue ',' Value
3413 bool LLParser::ParseCompare(Instruction *&Inst, PerFunctionState &PFS,
3415 // Parse the integer/fp comparison predicate.
3419 if (ParseCmpPredicate(Pred, Opc) ||
3420 ParseTypeAndValue(LHS, Loc, PFS) ||
3421 ParseToken(lltok::comma, "expected ',' after compare value") ||
3422 ParseValue(LHS->getType(), RHS, PFS))
3425 if (Opc == Instruction::FCmp) {
3426 if (!LHS->getType()->isFPOrFPVectorTy())
3427 return Error(Loc, "fcmp requires floating point operands");
3428 Inst = new FCmpInst(CmpInst::Predicate(Pred), LHS, RHS);
3430 assert(Opc == Instruction::ICmp && "Unknown opcode for CmpInst!");
3431 if (!LHS->getType()->isIntOrIntVectorTy() &&
3432 !LHS->getType()->isPointerTy())
3433 return Error(Loc, "icmp requires integer operands");
3434 Inst = new ICmpInst(CmpInst::Predicate(Pred), LHS, RHS);
3439 //===----------------------------------------------------------------------===//
3440 // Other Instructions.
3441 //===----------------------------------------------------------------------===//
3445 /// ::= CastOpc TypeAndValue 'to' Type
3446 bool LLParser::ParseCast(Instruction *&Inst, PerFunctionState &PFS,
3448 LocTy Loc; Value *Op;
3449 PATypeHolder DestTy(Type::getVoidTy(Context));
3450 if (ParseTypeAndValue(Op, Loc, PFS) ||
3451 ParseToken(lltok::kw_to, "expected 'to' after cast value") ||
3455 if (!CastInst::castIsValid((Instruction::CastOps)Opc, Op, DestTy)) {
3456 CastInst::castIsValid((Instruction::CastOps)Opc, Op, DestTy);
3457 return Error(Loc, "invalid cast opcode for cast from '" +
3458 Op->getType()->getDescription() + "' to '" +
3459 DestTy->getDescription() + "'");
3461 Inst = CastInst::Create((Instruction::CastOps)Opc, Op, DestTy);
3466 /// ::= 'select' TypeAndValue ',' TypeAndValue ',' TypeAndValue
3467 bool LLParser::ParseSelect(Instruction *&Inst, PerFunctionState &PFS) {
3469 Value *Op0, *Op1, *Op2;
3470 if (ParseTypeAndValue(Op0, Loc, PFS) ||
3471 ParseToken(lltok::comma, "expected ',' after select condition") ||
3472 ParseTypeAndValue(Op1, PFS) ||
3473 ParseToken(lltok::comma, "expected ',' after select value") ||
3474 ParseTypeAndValue(Op2, PFS))
3477 if (const char *Reason = SelectInst::areInvalidOperands(Op0, Op1, Op2))
3478 return Error(Loc, Reason);
3480 Inst = SelectInst::Create(Op0, Op1, Op2);
3485 /// ::= 'va_arg' TypeAndValue ',' Type
3486 bool LLParser::ParseVA_Arg(Instruction *&Inst, PerFunctionState &PFS) {
3488 PATypeHolder EltTy(Type::getVoidTy(Context));
3490 if (ParseTypeAndValue(Op, PFS) ||
3491 ParseToken(lltok::comma, "expected ',' after vaarg operand") ||
3492 ParseType(EltTy, TypeLoc))
3495 if (!EltTy->isFirstClassType())
3496 return Error(TypeLoc, "va_arg requires operand with first class type");
3498 Inst = new VAArgInst(Op, EltTy);
3502 /// ParseExtractElement
3503 /// ::= 'extractelement' TypeAndValue ',' TypeAndValue
3504 bool LLParser::ParseExtractElement(Instruction *&Inst, PerFunctionState &PFS) {
3507 if (ParseTypeAndValue(Op0, Loc, PFS) ||
3508 ParseToken(lltok::comma, "expected ',' after extract value") ||
3509 ParseTypeAndValue(Op1, PFS))
3512 if (!ExtractElementInst::isValidOperands(Op0, Op1))
3513 return Error(Loc, "invalid extractelement operands");
3515 Inst = ExtractElementInst::Create(Op0, Op1);
3519 /// ParseInsertElement
3520 /// ::= 'insertelement' TypeAndValue ',' TypeAndValue ',' TypeAndValue
3521 bool LLParser::ParseInsertElement(Instruction *&Inst, PerFunctionState &PFS) {
3523 Value *Op0, *Op1, *Op2;
3524 if (ParseTypeAndValue(Op0, Loc, PFS) ||
3525 ParseToken(lltok::comma, "expected ',' after insertelement value") ||
3526 ParseTypeAndValue(Op1, PFS) ||
3527 ParseToken(lltok::comma, "expected ',' after insertelement value") ||
3528 ParseTypeAndValue(Op2, PFS))
3531 if (!InsertElementInst::isValidOperands(Op0, Op1, Op2))
3532 return Error(Loc, "invalid insertelement operands");
3534 Inst = InsertElementInst::Create(Op0, Op1, Op2);
3538 /// ParseShuffleVector
3539 /// ::= 'shufflevector' TypeAndValue ',' TypeAndValue ',' TypeAndValue
3540 bool LLParser::ParseShuffleVector(Instruction *&Inst, PerFunctionState &PFS) {
3542 Value *Op0, *Op1, *Op2;
3543 if (ParseTypeAndValue(Op0, Loc, PFS) ||
3544 ParseToken(lltok::comma, "expected ',' after shuffle mask") ||
3545 ParseTypeAndValue(Op1, PFS) ||
3546 ParseToken(lltok::comma, "expected ',' after shuffle value") ||
3547 ParseTypeAndValue(Op2, PFS))
3550 if (!ShuffleVectorInst::isValidOperands(Op0, Op1, Op2))
3551 return Error(Loc, "invalid extractelement operands");
3553 Inst = new ShuffleVectorInst(Op0, Op1, Op2);
3558 /// ::= 'phi' Type '[' Value ',' Value ']' (',' '[' Value ',' Value ']')*
3559 int LLParser::ParsePHI(Instruction *&Inst, PerFunctionState &PFS) {
3560 PATypeHolder Ty(Type::getVoidTy(Context));
3562 LocTy TypeLoc = Lex.getLoc();
3564 if (ParseType(Ty) ||
3565 ParseToken(lltok::lsquare, "expected '[' in phi value list") ||
3566 ParseValue(Ty, Op0, PFS) ||
3567 ParseToken(lltok::comma, "expected ',' after insertelement value") ||
3568 ParseValue(Type::getLabelTy(Context), Op1, PFS) ||
3569 ParseToken(lltok::rsquare, "expected ']' in phi value list"))
3572 bool AteExtraComma = false;
3573 SmallVector<std::pair<Value*, BasicBlock*>, 16> PHIVals;
3575 PHIVals.push_back(std::make_pair(Op0, cast<BasicBlock>(Op1)));
3577 if (!EatIfPresent(lltok::comma))
3580 if (Lex.getKind() == lltok::MetadataVar) {
3581 AteExtraComma = true;
3585 if (ParseToken(lltok::lsquare, "expected '[' in phi value list") ||
3586 ParseValue(Ty, Op0, PFS) ||
3587 ParseToken(lltok::comma, "expected ',' after insertelement value") ||
3588 ParseValue(Type::getLabelTy(Context), Op1, PFS) ||
3589 ParseToken(lltok::rsquare, "expected ']' in phi value list"))
3593 if (!Ty->isFirstClassType())
3594 return Error(TypeLoc, "phi node must have first class type");
3596 PHINode *PN = PHINode::Create(Ty);
3597 PN->reserveOperandSpace(PHIVals.size());
3598 for (unsigned i = 0, e = PHIVals.size(); i != e; ++i)
3599 PN->addIncoming(PHIVals[i].first, PHIVals[i].second);
3601 return AteExtraComma ? InstExtraComma : InstNormal;
3605 /// ::= 'tail'? 'call' OptionalCallingConv OptionalAttrs Type Value
3606 /// ParameterList OptionalAttrs
3607 bool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS,
3609 unsigned RetAttrs, FnAttrs;
3611 PATypeHolder RetType(Type::getVoidTy(Context));
3614 SmallVector<ParamInfo, 16> ArgList;
3615 LocTy CallLoc = Lex.getLoc();
3617 if ((isTail && ParseToken(lltok::kw_call, "expected 'tail call'")) ||
3618 ParseOptionalCallingConv(CC) ||
3619 ParseOptionalAttrs(RetAttrs, 1) ||
3620 ParseType(RetType, RetTypeLoc, true /*void allowed*/) ||
3621 ParseValID(CalleeID) ||
3622 ParseParameterList(ArgList, PFS) ||
3623 ParseOptionalAttrs(FnAttrs, 2))
3626 // If RetType is a non-function pointer type, then this is the short syntax
3627 // for the call, which means that RetType is just the return type. Infer the
3628 // rest of the function argument types from the arguments that are present.
3629 const PointerType *PFTy = 0;
3630 const FunctionType *Ty = 0;
3631 if (!(PFTy = dyn_cast<PointerType>(RetType)) ||
3632 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3633 // Pull out the types of all of the arguments...
3634 std::vector<const Type*> ParamTypes;
3635 for (unsigned i = 0, e = ArgList.size(); i != e; ++i)
3636 ParamTypes.push_back(ArgList[i].V->getType());
3638 if (!FunctionType::isValidReturnType(RetType))
3639 return Error(RetTypeLoc, "Invalid result type for LLVM function");
3641 Ty = FunctionType::get(RetType, ParamTypes, false);
3642 PFTy = PointerType::getUnqual(Ty);
3645 // Look up the callee.
3647 if (ConvertValIDToValue(PFTy, CalleeID, Callee, &PFS)) return true;
3649 // FIXME: In LLVM 3.0, stop accepting zext, sext and inreg as optional
3650 // function attributes.
3651 unsigned ObsoleteFuncAttrs = Attribute::ZExt|Attribute::SExt|Attribute::InReg;
3652 if (FnAttrs & ObsoleteFuncAttrs) {
3653 RetAttrs |= FnAttrs & ObsoleteFuncAttrs;
3654 FnAttrs &= ~ObsoleteFuncAttrs;
3657 // Set up the Attributes for the function.
3658 SmallVector<AttributeWithIndex, 8> Attrs;
3659 if (RetAttrs != Attribute::None)
3660 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
3662 SmallVector<Value*, 8> Args;
3664 // Loop through FunctionType's arguments and ensure they are specified
3665 // correctly. Also, gather any parameter attributes.
3666 FunctionType::param_iterator I = Ty->param_begin();
3667 FunctionType::param_iterator E = Ty->param_end();
3668 for (unsigned i = 0, e = ArgList.size(); i != e; ++i) {
3669 const Type *ExpectedTy = 0;
3672 } else if (!Ty->isVarArg()) {
3673 return Error(ArgList[i].Loc, "too many arguments specified");
3676 if (ExpectedTy && ExpectedTy != ArgList[i].V->getType())
3677 return Error(ArgList[i].Loc, "argument is not of expected type '" +
3678 ExpectedTy->getDescription() + "'");
3679 Args.push_back(ArgList[i].V);
3680 if (ArgList[i].Attrs != Attribute::None)
3681 Attrs.push_back(AttributeWithIndex::get(i+1, ArgList[i].Attrs));
3685 return Error(CallLoc, "not enough parameters specified for call");
3687 if (FnAttrs != Attribute::None)
3688 Attrs.push_back(AttributeWithIndex::get(~0, FnAttrs));
3690 // Finish off the Attributes and check them
3691 AttrListPtr PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
3693 CallInst *CI = CallInst::Create(Callee, Args.begin(), Args.end());
3694 CI->setTailCall(isTail);
3695 CI->setCallingConv(CC);
3696 CI->setAttributes(PAL);
3701 //===----------------------------------------------------------------------===//
3702 // Memory Instructions.
3703 //===----------------------------------------------------------------------===//
3706 /// ::= 'malloc' Type (',' TypeAndValue)? (',' OptionalInfo)?
3707 /// ::= 'alloca' Type (',' TypeAndValue)? (',' OptionalInfo)?
3708 int LLParser::ParseAlloc(Instruction *&Inst, PerFunctionState &PFS,
3709 BasicBlock* BB, bool isAlloca) {
3710 PATypeHolder Ty(Type::getVoidTy(Context));
3713 unsigned Alignment = 0;
3714 if (ParseType(Ty)) return true;
3716 bool AteExtraComma = false;
3717 if (EatIfPresent(lltok::comma)) {
3718 if (Lex.getKind() == lltok::kw_align) {
3719 if (ParseOptionalAlignment(Alignment)) return true;
3720 } else if (Lex.getKind() == lltok::MetadataVar) {
3721 AteExtraComma = true;
3723 if (ParseTypeAndValue(Size, SizeLoc, PFS) ||
3724 ParseOptionalCommaAlign(Alignment, AteExtraComma))
3729 if (Size && !Size->getType()->isIntegerTy(32))
3730 return Error(SizeLoc, "element count must be i32");
3733 Inst = new AllocaInst(Ty, Size, Alignment);
3734 return AteExtraComma ? InstExtraComma : InstNormal;
3737 // Autoupgrade old malloc instruction to malloc call.
3738 // FIXME: Remove in LLVM 3.0.
3739 const Type *IntPtrTy = Type::getInt32Ty(Context);
3740 Constant *AllocSize = ConstantExpr::getSizeOf(Ty);
3741 AllocSize = ConstantExpr::getTruncOrBitCast(AllocSize, IntPtrTy);
3743 // Prototype malloc as "void *(int32)".
3744 // This function is renamed as "malloc" in ValidateEndOfModule().
3745 MallocF = cast<Function>(
3746 M->getOrInsertFunction("", Type::getInt8PtrTy(Context), IntPtrTy, NULL));
3747 Inst = CallInst::CreateMalloc(BB, IntPtrTy, Ty, AllocSize, Size, MallocF);
3748 return AteExtraComma ? InstExtraComma : InstNormal;
3752 /// ::= 'free' TypeAndValue
3753 bool LLParser::ParseFree(Instruction *&Inst, PerFunctionState &PFS,
3755 Value *Val; LocTy Loc;
3756 if (ParseTypeAndValue(Val, Loc, PFS)) return true;
3757 if (!Val->getType()->isPointerTy())
3758 return Error(Loc, "operand to free must be a pointer");
3759 Inst = CallInst::CreateFree(Val, BB);
3764 /// ::= 'volatile'? 'load' TypeAndValue (',' OptionalInfo)?
3765 int LLParser::ParseLoad(Instruction *&Inst, PerFunctionState &PFS,
3767 Value *Val; LocTy Loc;
3768 unsigned Alignment = 0;
3769 bool AteExtraComma = false;
3770 if (ParseTypeAndValue(Val, Loc, PFS) ||
3771 ParseOptionalCommaAlign(Alignment, AteExtraComma))
3774 if (!Val->getType()->isPointerTy() ||
3775 !cast<PointerType>(Val->getType())->getElementType()->isFirstClassType())
3776 return Error(Loc, "load operand must be a pointer to a first class type");
3778 Inst = new LoadInst(Val, "", isVolatile, Alignment);
3779 return AteExtraComma ? InstExtraComma : InstNormal;
3783 /// ::= 'volatile'? 'store' TypeAndValue ',' TypeAndValue (',' 'align' i32)?
3784 int LLParser::ParseStore(Instruction *&Inst, PerFunctionState &PFS,
3786 Value *Val, *Ptr; LocTy Loc, PtrLoc;
3787 unsigned Alignment = 0;
3788 bool AteExtraComma = false;
3789 if (ParseTypeAndValue(Val, Loc, PFS) ||
3790 ParseToken(lltok::comma, "expected ',' after store operand") ||
3791 ParseTypeAndValue(Ptr, PtrLoc, PFS) ||
3792 ParseOptionalCommaAlign(Alignment, AteExtraComma))
3795 if (!Ptr->getType()->isPointerTy())
3796 return Error(PtrLoc, "store operand must be a pointer");
3797 if (!Val->getType()->isFirstClassType())
3798 return Error(Loc, "store operand must be a first class value");
3799 if (cast<PointerType>(Ptr->getType())->getElementType() != Val->getType())
3800 return Error(Loc, "stored value and pointer type do not match");
3802 Inst = new StoreInst(Val, Ptr, isVolatile, Alignment);
3803 return AteExtraComma ? InstExtraComma : InstNormal;
3807 /// ::= 'getresult' TypeAndValue ',' i32
3808 /// FIXME: Remove support for getresult in LLVM 3.0
3809 bool LLParser::ParseGetResult(Instruction *&Inst, PerFunctionState &PFS) {
3810 Value *Val; LocTy ValLoc, EltLoc;
3812 if (ParseTypeAndValue(Val, ValLoc, PFS) ||
3813 ParseToken(lltok::comma, "expected ',' after getresult operand") ||
3814 ParseUInt32(Element, EltLoc))
3817 if (!Val->getType()->isStructTy() && !Val->getType()->isArrayTy())
3818 return Error(ValLoc, "getresult inst requires an aggregate operand");
3819 if (!ExtractValueInst::getIndexedType(Val->getType(), Element))
3820 return Error(EltLoc, "invalid getresult index for value");
3821 Inst = ExtractValueInst::Create(Val, Element);
3825 /// ParseGetElementPtr
3826 /// ::= 'getelementptr' 'inbounds'? TypeAndValue (',' TypeAndValue)*
3827 int LLParser::ParseGetElementPtr(Instruction *&Inst, PerFunctionState &PFS) {
3828 Value *Ptr, *Val; LocTy Loc, EltLoc;
3830 bool InBounds = EatIfPresent(lltok::kw_inbounds);
3832 if (ParseTypeAndValue(Ptr, Loc, PFS)) return true;
3834 if (!Ptr->getType()->isPointerTy())
3835 return Error(Loc, "base of getelementptr must be a pointer");
3837 SmallVector<Value*, 16> Indices;
3838 bool AteExtraComma = false;
3839 while (EatIfPresent(lltok::comma)) {
3840 if (Lex.getKind() == lltok::MetadataVar) {
3841 AteExtraComma = true;
3844 if (ParseTypeAndValue(Val, EltLoc, PFS)) return true;
3845 if (!Val->getType()->isIntegerTy())
3846 return Error(EltLoc, "getelementptr index must be an integer");
3847 Indices.push_back(Val);
3850 if (!GetElementPtrInst::getIndexedType(Ptr->getType(),
3851 Indices.begin(), Indices.end()))
3852 return Error(Loc, "invalid getelementptr indices");
3853 Inst = GetElementPtrInst::Create(Ptr, Indices.begin(), Indices.end());
3855 cast<GetElementPtrInst>(Inst)->setIsInBounds(true);
3856 return AteExtraComma ? InstExtraComma : InstNormal;
3859 /// ParseExtractValue
3860 /// ::= 'extractvalue' TypeAndValue (',' uint32)+
3861 int LLParser::ParseExtractValue(Instruction *&Inst, PerFunctionState &PFS) {
3862 Value *Val; LocTy Loc;
3863 SmallVector<unsigned, 4> Indices;
3865 if (ParseTypeAndValue(Val, Loc, PFS) ||
3866 ParseIndexList(Indices, AteExtraComma))
3869 if (!Val->getType()->isAggregateType())
3870 return Error(Loc, "extractvalue operand must be aggregate type");
3872 if (!ExtractValueInst::getIndexedType(Val->getType(), Indices.begin(),
3874 return Error(Loc, "invalid indices for extractvalue");
3875 Inst = ExtractValueInst::Create(Val, Indices.begin(), Indices.end());
3876 return AteExtraComma ? InstExtraComma : InstNormal;
3879 /// ParseInsertValue
3880 /// ::= 'insertvalue' TypeAndValue ',' TypeAndValue (',' uint32)+
3881 int LLParser::ParseInsertValue(Instruction *&Inst, PerFunctionState &PFS) {
3882 Value *Val0, *Val1; LocTy Loc0, Loc1;
3883 SmallVector<unsigned, 4> Indices;
3885 if (ParseTypeAndValue(Val0, Loc0, PFS) ||
3886 ParseToken(lltok::comma, "expected comma after insertvalue operand") ||
3887 ParseTypeAndValue(Val1, Loc1, PFS) ||
3888 ParseIndexList(Indices, AteExtraComma))
3891 if (!Val0->getType()->isAggregateType())
3892 return Error(Loc0, "insertvalue operand must be aggregate type");
3894 if (!ExtractValueInst::getIndexedType(Val0->getType(), Indices.begin(),
3896 return Error(Loc0, "invalid indices for insertvalue");
3897 Inst = InsertValueInst::Create(Val0, Val1, Indices.begin(), Indices.end());
3898 return AteExtraComma ? InstExtraComma : InstNormal;
3901 //===----------------------------------------------------------------------===//
3902 // Embedded metadata.
3903 //===----------------------------------------------------------------------===//
3905 /// ParseMDNodeVector
3906 /// ::= Element (',' Element)*
3908 /// ::= 'null' | TypeAndValue
3909 bool LLParser::ParseMDNodeVector(SmallVectorImpl<Value*> &Elts,
3910 PerFunctionState *PFS) {
3912 // Null is a special case since it is typeless.
3913 if (EatIfPresent(lltok::kw_null)) {
3919 PATypeHolder Ty(Type::getVoidTy(Context));
3921 if (ParseType(Ty) || ParseValID(ID, PFS) ||
3922 ConvertValIDToValue(Ty, ID, V, PFS))
3926 } while (EatIfPresent(lltok::comma));