Don't stack-allocate an IntegerLiteral which can be referred to after the current method returns. PR11744, part 2.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148995 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 3 deletions

diff --git a/lib/Sema/TreeTransform.h b/lib/Sema/TreeTransform.h
index 5d761d382a..240445190b 100644
--- a/lib/Sema/TreeTransform.h
+++ b/lib/Sema/TreeTransform.h
@@ -8325,9 +8325,12 @@ TreeTransform<Derived>::RebuildArrayType(QualType ElementType,
       break;
     }
 
-  IntegerLiteral ArraySize(SemaRef.Context, *Size, SizeType,
-                           /*FIXME*/BracketsRange.getBegin());
-  return SemaRef.BuildArrayType(ElementType, SizeMod, &ArraySize,
+  // Note that we can return a VariableArrayType here in the case where
+  // the element type was a dependent VariableArrayType.
+  IntegerLiteral *ArraySize
+      = IntegerLiteral::Create(SemaRef.Context, *Size, SizeType,
+                               /*FIXME*/BracketsRange.getBegin());
+  return SemaRef.BuildArrayType(ElementType, SizeMod, ArraySize,
                                 IndexTypeQuals, BracketsRange,
                                 getDerived().getBaseEntity());
 }