1; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
2
3; Test that we don't drop a block that has its address taken.
4
5; CHECK: Ltmp0:                                  ## Block address taken
6; CHECK: Ltmp1:                                  ## Block address taken
7
8@a = common global i32 0, align 4
9@p = common global i8* null, align 8
10
11define void @foo() noreturn nounwind uwtable ssp {
12entry:
13  %tmp = load i32* @a, align 4
14  %foo = icmp eq i32 0, %tmp
15  br i1 %foo, label %sw.bb, label %sw.default
16
17sw.bb:                                            ; preds = %entry
18  store i8* blockaddress(@foo, %sw.bb1), i8** @p, align 8
19  br label %sw.bb1
20
21sw.bb1:                                           ; preds = %sw.default, %sw.bb, %entry
22  store i8* blockaddress(@foo, %sw.default), i8** @p, align 8
23  br label %sw.default
24
25sw.default:                                       ; preds = %sw.bb1, %entry
26  store i8* blockaddress(@foo, %sw.bb1), i8** @p, align 8
27  br label %sw.bb1
28}
29