|  | ; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s | 
|  |  | 
|  | @bb = constant [1 x i8*] [i8* blockaddress(@main, %l2)] | 
|  |  | 
|  | define void @main() { | 
|  | entry: | 
|  | br label %l1 | 
|  |  | 
|  | l1:                                               ; preds = %l2, %entry | 
|  | %a = zext i1 false to i32 | 
|  | br label %l2 | 
|  |  | 
|  | l2:                                               ; preds = %l1 | 
|  | %b = zext i1 false to i32 | 
|  | br label %l1 | 
|  | } | 
|  |  | 
|  | ; It is correct for either l1 or l2 to be removed. | 
|  | ; If l2 is removed, the message should be "Address of block that was removed by CodeGen" | 
|  | ; If l1 is removed, it should be "Block address taken." | 
|  | ; CHECK: .Ltmp0:                                 # {{Address of block that was removed by CodeGen|Block address taken}} | 
|  | ; CHECK: .quad	.Ltmp0 |