There is no way to guarantee that constants are not forward referenced.
Handle forward referenced constants in a general way.  This fixes bug:
Assembler/2002-10-13-ConstantEncodingProblem.llx and allows the SPEC
197.parser benchmark to be built


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4161 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bytecode/Reader/ReaderInternals.h b/lib/Bytecode/Reader/ReaderInternals.h
index c156f51..8f65677 100644
--- a/lib/Bytecode/Reader/ReaderInternals.h
+++ b/lib/Bytecode/Reader/ReaderInternals.h
@@ -108,6 +108,7 @@
 
   Value      *getValue(const Type *Ty, unsigned num, bool Create = true);
   const Type *getType(unsigned ID);
+  Constant   *getConstantValue(const Type *Ty, unsigned num);
 
   int insertValue(Value *D, std::vector<ValueList> &D);  // -1 = Failure
   bool postResolveValues(ValueTable &ValTab);