When removing a value from GVN's leaders list, don't drop the Next pointer in a corner case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122822 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index cf82ebc..c78c4c3 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -466,6 +466,7 @@
NumberTableEntry* Next = Curr->Next;
Curr->Val = Next->Val;
Curr->BB = Next->BB;
+ Curr->Next = Next->Next;
}
}
}
@@ -1693,7 +1694,7 @@
return false;
}
-
+
uint32_t NextNum = VN.getNextUnusedValueNumber();
unsigned Num = VN.lookup_or_add(I);