Extend the AsmWriter to print unnamed numbered types as "%0 = type ..."
and unnamed numbered global variables as "@0 = global ...". Extend the
AsmParser to recognize these forms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78859 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index b5699ff..ab686ce 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -117,8 +117,10 @@
case lltok::kw_target: if (ParseTargetDefinition()) return true; break;
case lltok::kw_deplibs: if (ParseDepLibs()) return true; break;
case lltok::kw_type: if (ParseUnnamedType()) return true; break;
+ case lltok::LocalVarID: if (ParseUnnamedType()) return true; break;
case lltok::StringConstant: // FIXME: REMOVE IN LLVM 3.0
case lltok::LocalVar: if (ParseNamedType()) return true; break;
+ case lltok::GlobalID: if (ParseUnnamedGlobal()) return true; break;
case lltok::GlobalVar: if (ParseNamedGlobal()) return true; break;
case lltok::Metadata: if (ParseStandaloneMetadata()) return true; break;
case lltok::NamedMD: if (ParseNamedMetadata()) return true; break;
@@ -236,9 +238,23 @@
return ParseToken(lltok::rsquare, "expected ']' at end of list");
}
-/// toplevelentity
+/// ParseUnnamedType:
/// ::= 'type' type
+/// ::= LocalVarID '=' 'type' type
bool LLParser::ParseUnnamedType() {
+ unsigned TypeID = NumberedTypes.size();
+
+ // Handle the LocalVarID form.
+ if (Lex.getKind() == lltok::LocalVarID) {
+ if (Lex.getUIntVal() != TypeID)
+ return Error(Lex.getLoc(), "type expected to be numbered '%" +
+ utostr(TypeID) + "'");
+ Lex.Lex(); // eat LocalVarID;
+
+ if (ParseToken(lltok::equal, "expected '=' after name"))
+ return true;
+ }
+
assert(Lex.getKind() == lltok::kw_type);
LocTy TypeLoc = Lex.getLoc();
Lex.Lex(); // eat kw_type
@@ -246,8 +262,6 @@
PATypeHolder Ty(Type::VoidTy);
if (ParseType(Ty)) return true;
- unsigned TypeID = NumberedTypes.size();
-
// See if this type was previously referenced.
std::map<unsigned, std::pair<PATypeHolder, LocTy> >::iterator
FI = ForwardRefTypeIDs.find(TypeID);
@@ -348,6 +362,38 @@
return false;
}
+/// ParseUnnamedGlobal:
+/// OptionalVisibility ALIAS ...
+/// OptionalLinkage OptionalVisibility ... -> global variable
+/// GlobalID '=' OptionalVisibility ALIAS ...
+/// GlobalID '=' OptionalLinkage OptionalVisibility ... -> global variable
+bool LLParser::ParseUnnamedGlobal() {
+ unsigned VarID = NumberedVals.size();
+ std::string Name;
+ LocTy NameLoc = Lex.getLoc();
+
+ // Handle the GlobalID form.
+ if (Lex.getKind() == lltok::GlobalID) {
+ if (Lex.getUIntVal() != VarID)
+ return Error(Lex.getLoc(), "variable expected to be numbered '%" +
+ utostr(VarID) + "'");
+ Lex.Lex(); // eat GlobalID;
+
+ if (ParseToken(lltok::equal, "expected '=' after name"))
+ return true;
+ }
+
+ bool HasLinkage;
+ unsigned Linkage, Visibility;
+ if (ParseOptionalLinkage(Linkage, HasLinkage) ||
+ ParseOptionalVisibility(Visibility))
+ return true;
+
+ if (HasLinkage || Lex.getKind() != lltok::kw_alias)
+ return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility);
+ return ParseAlias(Name, NameLoc, Visibility);
+}
+
/// ParseNamedGlobal:
/// GlobalVar '=' OptionalVisibility ALIAS ...
/// GlobalVar '=' OptionalLinkage OptionalVisibility ... -> global variable