Make the AttrListPtr object a part of the LLVMContext.

When code deletes the context, the AttributeImpls that the AttrListPtr points to
are now invalid. Therefore, instead of keeping a separate managed static for the
AttrListPtrs that's reference counted, move it into the LLVMContext and delete
it when deleting the AttributeImpls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168354 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index 327ce75..41cca68 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -2793,7 +2793,7 @@
                               Attributes::get(RetType->getContext(),
                                               FuncAttrs)));
 
-  AttrListPtr PAL = AttrListPtr::get(Attrs);
+  AttrListPtr PAL = AttrListPtr::get(Context, Attrs);
 
   if (PAL.getParamAttributes(1).hasAttribute(Attributes::StructRet) &&
       !RetType->isVoidTy())
@@ -3350,7 +3350,7 @@
                                               FnAttrs)));
 
   // Finish off the Attributes and check them
-  AttrListPtr PAL = AttrListPtr::get(Attrs);
+  AttrListPtr PAL = AttrListPtr::get(Context, Attrs);
 
   InvokeInst *II = InvokeInst::Create(Callee, NormalBB, UnwindBB, Args);
   II->setCallingConv(CC);
@@ -3752,7 +3752,7 @@
                                               FnAttrs)));
 
   // Finish off the Attributes and check them
-  AttrListPtr PAL = AttrListPtr::get(Attrs);
+  AttrListPtr PAL = AttrListPtr::get(Context, Attrs);
 
   CallInst *CI = CallInst::Create(Callee, Args);
   CI->setTailCall(isTail);