| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -enable-if-conversion |
| 2 | |
| 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 | |
| 5 | define fastcc void @DD_dump() nounwind uwtable ssp { |
| 6 | entry: |
| 7 | br i1 undef, label %lor.lhs.false, label %if.end25 |
| 8 | |
| 9 | lor.lhs.false: ; preds = %entry |
| 10 | br i1 undef, label %if.end21, label %if.else |
| 11 | |
| 12 | if.else: ; preds = %lor.lhs.false |
| 13 | br i1 undef, label %num_q.exit, label %while.body.i.preheader |
| 14 | |
| 15 | while.body.i.preheader: ; preds = %if.else |
| 16 | br label %while.body.i |
| 17 | |
| 18 | while.body.i: ; preds = %if.end.i, %while.body.i.preheader |
| 19 | switch i8 undef, label %if.end.i [ |
| 20 | i8 39, label %if.then.i |
| 21 | i8 92, label %if.then.i |
| 22 | ] |
| 23 | |
| 24 | if.then.i: ; preds = %while.body.i, %while.body.i |
| 25 | br label %if.end.i |
| 26 | |
| 27 | if.end.i: ; preds = %if.then.i, %while.body.i |
| 28 | br i1 undef, label %num_q.exit, label %while.body.i |
| 29 | |
| 30 | num_q.exit: ; preds = %if.end.i, %if.else |
| 31 | unreachable |
| 32 | |
| 33 | if.end21: ; preds = %lor.lhs.false |
| 34 | unreachable |
| 35 | |
| 36 | if.end25: ; preds = %entry |
| 37 | ret void |
| 38 | } |
| 39 | |
| 40 | ; PR15990 |
| 41 | ; We can have basic blocks with single entry PHI nodes. |
| 42 | define void @single_entry_phi(i32* %a, i32 *%b) { |
| 43 | entry: |
| 44 | br label %for.cond1.preheader |
| 45 | |
| 46 | for.cond1.preheader: |
| 47 | %inc10 = phi i32 [ 0, %entry ], [ %inc, %for.end ] |
| 48 | br label %for.end |
| 49 | |
| 50 | for.end: |
| 51 | %malicious.phi = phi i32 [ 0, %for.cond1.preheader ] |
| 52 | %inc = add nsw i32 %inc10, 1 |
| 53 | %tobool = icmp eq i32 %inc, 0 |
| 54 | br i1 %tobool, label %for.cond.for.end5, label %for.cond1.preheader |
| 55 | |
| 56 | for.cond.for.end5: |
| 57 | %and.lcssa = phi i32 [ %malicious.phi, %for.end ] |
| 58 | store i32 %and.lcssa, i32* %a, align 4 |
| 59 | ret void |
| 60 | } |