| ; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -enable-if-conversion |
| |
| 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" |
| |
| define fastcc void @DD_dump() nounwind uwtable ssp { |
| entry: |
| br i1 true, label %lor.lhs.false, label %if.end25 |
| |
| lor.lhs.false: ; preds = %entry |
| br i1 false, label %if.end21, label %if.else |
| |
| if.else: ; preds = %lor.lhs.false |
| br i1 false, label %num_q.exit, label %while.body.i.preheader |
| |
| while.body.i.preheader: ; preds = %if.else |
| br label %while.body.i |
| |
| while.body.i: ; preds = %if.end.i, %while.body.i.preheader |
| switch i8 0, label %if.end.i [ |
| i8 39, label %if.then.i |
| i8 92, label %if.then.i |
| ] |
| |
| if.then.i: ; preds = %while.body.i, %while.body.i |
| br label %if.end.i |
| |
| if.end.i: ; preds = %if.then.i, %while.body.i |
| br i1 false, label %num_q.exit, label %while.body.i |
| |
| num_q.exit: ; preds = %if.end.i, %if.else |
| unreachable |
| |
| if.end21: ; preds = %lor.lhs.false |
| unreachable |
| |
| if.end25: ; preds = %entry |
| ret void |
| } |
| |
| ; PR15990 |
| ; We can have basic blocks with single entry PHI nodes. |
| define void @single_entry_phi(ptr %a, ptr %b) { |
| entry: |
| br label %for.cond1.preheader |
| |
| for.cond1.preheader: |
| %inc10 = phi i32 [ 0, %entry ], [ %inc, %for.end ] |
| br label %for.end |
| |
| for.end: |
| %malicious.phi = phi i32 [ 0, %for.cond1.preheader ] |
| %inc = add nsw i32 %inc10, 1 |
| %tobool = icmp eq i32 %inc, 0 |
| br i1 %tobool, label %for.cond.for.end5, label %for.cond1.preheader |
| |
| for.cond.for.end5: |
| %and.lcssa = phi i32 [ %malicious.phi, %for.end ] |
| store i32 %and.lcssa, ptr %a, align 4 |
| ret void |
| } |
