Fix typo noticed by 'Danny' in PR1901


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45661 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/LangRef.html b/docs/LangRef.html
index 51c308c..1e45e63 100644
--- a/docs/LangRef.html
+++ b/docs/LangRef.html
@@ -4498,7 +4498,7 @@
 <p>
 The '<tt>llvm.memmove.*</tt>' intrinsics move a block of memory from the source
 location to the destination location. It is similar to the
-'<tt>llvm.memcmp</tt>' intrinsic but allows the two memory locations to overlap.
+'<tt>llvm.memcpy</tt>' intrinsic but allows the two memory locations to overlap.
 </p>
 
 <p>