you can't take the address of the entry block of a function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85321 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/LangRef.html b/docs/LangRef.html
index 6025b41..3d4783a 100644
--- a/docs/LangRef.html
+++ b/docs/LangRef.html
@@ -2179,8 +2179,8 @@
<p><b><tt>blockaddress(@function, %block)</tt></b></p>
<p>The '<tt>blockaddress</tt>' constant computes the address of the specified
- basic block in the specified function, and always has an i8* type.</p>
-
+ basic block in the specified function, and always has an i8* type. Taking
+ the address of the entry block is illegal.</p>
<p>This value only has defined behavior when used as an operand to the
'<a href="#i_indbr"><tt>indbr</tt></a>' instruction or for comparisons