1 ; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -enable-if-conversion
3 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
4 target triple = "x86_64-apple-macosx10.8.0"
6 define fastcc void @DD_dump() nounwind uwtable ssp {
8 br i1 undef, label %lor.lhs.false, label %if.end25
10 lor.lhs.false: ; preds = %entry
11 br i1 undef, label %if.end21, label %if.else
13 if.else: ; preds = %lor.lhs.false
14 br i1 undef, label %num_q.exit, label %while.body.i.preheader
16 while.body.i.preheader: ; preds = %if.else
17 br label %while.body.i
19 while.body.i: ; preds = %if.end.i, %while.body.i.preheader
20 switch i8 undef, label %if.end.i [
21 i8 39, label %if.then.i
22 i8 92, label %if.then.i
25 if.then.i: ; preds = %while.body.i, %while.body.i
28 if.end.i: ; preds = %if.then.i, %while.body.i
29 br i1 undef, label %num_q.exit, label %while.body.i
31 num_q.exit: ; preds = %if.end.i, %if.else
34 if.end21: ; preds = %lor.lhs.false
37 if.end25: ; preds = %entry
42 ; We can have basic blocks with single entry PHI nodes.
43 define void @single_entry_phi(i32* %a, i32 *%b) {
45 br label %for.cond1.preheader
48 %inc10 = phi i32 [ 0, %entry ], [ %inc, %for.end ]
52 %malicious.phi = phi i32 [ 0, %for.cond1.preheader ]
53 %inc = add nsw i32 %inc10, 1
54 %tobool = icmp eq i32 %inc, 0
55 br i1 %tobool, label %for.cond.for.end5, label %for.cond1.preheader
58 %and.lcssa = phi i32 [ %malicious.phi, %for.end ]
59 store i32 %and.lcssa, i32* %a, align 4