Add back support for reading and parsing 'deplibs'.

This is for backwards compatibility for pre-3.x bc files. The code reads the
code, but does nothing with it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168779 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 23 insertions, 0 deletions

diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index 8a9f951908..57b67fe612 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -168,6 +168,7 @@ bool LLParser::ParseTopLevelEntities() {
     case lltok::kw_define:  if (ParseDefine()) return true; break;
     case lltok::kw_module:  if (ParseModuleAsm()) return true; break;
     case lltok::kw_target:  if (ParseTargetDefinition()) return true; break;
+    case lltok::kw_deplibs: if (ParseDepLibs()) return true; break;
     case lltok::LocalVarID: if (ParseUnnamedType()) return true; break;
     case lltok::LocalVar:   if (ParseNamedType()) return true; break;
     case lltok::GlobalID:   if (ParseUnnamedGlobal()) return true; break;
@@ -263,6 +264,28 @@ bool LLParser::ParseTargetDefinition() {
   }
 }
 
+/// toplevelentity
+///   ::= 'deplibs' '=' '[' ']'
+///   ::= 'deplibs' '=' '[' STRINGCONSTANT (',' STRINGCONSTANT)* ']'
+/// FIXME: Remove in 4.0. Currently parse, but ignore.
+bool LLParser::ParseDepLibs() {
+  assert(Lex.getKind() == lltok::kw_deplibs);
+  Lex.Lex();
+  if (ParseToken(lltok::equal, "expected '=' after deplibs") ||
+      ParseToken(lltok::lsquare, "expected '=' after deplibs"))
+    return true;
+
+  if (EatIfPresent(lltok::rsquare))
+    return false;
+
+  do {
+    std::string Str;
+    if (ParseStringConstant(Str)) return true;
+  } while (EatIfPresent(lltok::comma));
+
+  return ParseToken(lltok::rsquare, "expected ']' at end of list");
+}
+
 /// ParseUnnamedType:
 ///   ::= LocalVarID '=' 'type' type
 bool LLParser::ParseUnnamedType() {