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" "no-frame-pointer-elim"="false" "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