1; RUN: llc %s -o - -enable-shrink-wrap=true | FileCheck %s
2
3target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
4target triple = "i686-pc-linux"
5
6@b = global i32 1, align 4
7@a = common global i32 0, align 4
8
9declare void @fn1() #0
10
11; CHECK-LABEL: fn2:
12define void @fn2() #0 {
13entry:
14  %0 = load i32, i32* @b, align 4
15  %tobool = icmp eq i32 %0, 0
16  br i1 %tobool, label %if.end, label %lbl
17
18lbl:                                              ; preds = %if.end, %entry
19  store i32 0, i32* @b, align 4
20  br label %if.end
21
22if.end:                                           ; preds = %entry, %lbl
23  tail call void @fn1()
24  %1 = load i32, i32* @b, align 4
25  %tobool1 = icmp eq i32 %1, 0
26  br i1 %tobool1, label %if.end3, label %lbl
27
28if.end3:                                          ; preds = %if.end
29  ret void
30}
31
32attributes #0 = { norecurse nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
33