Use correct variable in this example.  Pointed out by waynix on IRC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156067 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/GarbageCollection.html b/docs/GarbageCollection.html
index 778297c..20f2c96 100644
--- a/docs/GarbageCollection.html
+++ b/docs/GarbageCollection.html
@@ -475,7 +475,7 @@
    ;; Tell LLVM that the stack space is a stack root.
    ;; Java has type-tags on objects, so we pass null as metadata.
    %tmp = bitcast %Object** %X to i8**
-   call void @llvm.gcroot(i8** %X, i8* null)
+   call void @llvm.gcroot(i8** %tmp, i8* null)
    ...
 
    ;; "CodeBlock" is the block corresponding to the start