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- ; RUN: opt < %s -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"
- target triple = "x86_64-apple-macosx10.8.0"
- define fastcc void @DD_dump() nounwind uwtable ssp {
- entry:
- br i1 undef, label %lor.lhs.false, label %if.end25
- lor.lhs.false: ; preds = %entry
- br i1 undef, label %if.end21, label %if.else
- if.else: ; preds = %lor.lhs.false
- br i1 undef, 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 undef, 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 undef, 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(i32* %a, i32 *%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, i32* %a, align 4
- ret void
- }
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