1; RUN: llc < %s -verify-machineinstrs -mtriple=i686-linux -mattr=-sse | FileCheck %s
2; PR11768
3
4@ptr = external global i8*
5
6define void @baz() nounwind ssp {
7entry:
8  %0 = load i8** @ptr, align 4
9  %cmp = icmp eq i8* %0, null
10  fence seq_cst
11  br i1 %cmp, label %if.then, label %if.else
12
13; Make sure the fence comes before the comparison, since it
14; clobbers EFLAGS.
15
16; CHECK: lock
17; CHECK-NEXT: orl {{.*}}, (%esp)
18; CHECK-NEXT: testl [[REG:%e[a-z]+]], [[REG]]
19
20if.then:                                          ; preds = %entry
21  tail call void bitcast (void (...)* @foo to void ()*)() nounwind
22  br label %if.end
23
24if.else:                                          ; preds = %entry
25  tail call void bitcast (void (...)* @bar to void ()*)() nounwind
26  br label %if.end
27
28if.end:                                           ; preds = %if.else, %if.then
29  ret void
30}
31
32declare void @foo(...)
33
34declare void @bar(...)
35