Merging r340125:

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r340125 | lhames | 2018-08-18 11:38:37 -0700 (Sat, 18 Aug 2018) | 6 lines

[RuntimeDyld] Fix a bug in RuntimeDyld::loadObjectImpl that was over-allocating
space for common symbols.

Patch by Dmitry Sidorov. Thanks Dmitry!

Differential revision: https://reviews.llvm.org/D50240
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_70@348555 91177308-0d34-0410-b5e6-96231b3b80d8

Author: tstellar

lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp

@@ -275,7 +275,7 @@ RuntimeDyldImpl::loadObjectImpl(const object::ObjectFile &Obj) {
           uint64_t Size = I->getCommonSize();
           if (!CommonAlign)
             CommonAlign = Align;
-          CommonSize += alignTo(CommonSize, Align) + Size;
+          CommonSize = alignTo(CommonSize, Align) + Size;
           CommonSymbolsToAllocate.push_back(*I);
         }
       } else