61 lines · plain
1; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -enable-if-conversion2 3target 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 5define fastcc void @DD_dump() nounwind uwtable ssp {6entry:7 br i1 true, label %lor.lhs.false, label %if.end258 9lor.lhs.false: ; preds = %entry10 br i1 false, label %if.end21, label %if.else11 12if.else: ; preds = %lor.lhs.false13 br i1 false, label %num_q.exit, label %while.body.i.preheader14 15while.body.i.preheader: ; preds = %if.else16 br label %while.body.i17 18while.body.i: ; preds = %if.end.i, %while.body.i.preheader19 switch i8 0, label %if.end.i [20 i8 39, label %if.then.i21 i8 92, label %if.then.i22 ]23 24if.then.i: ; preds = %while.body.i, %while.body.i25 br label %if.end.i26 27if.end.i: ; preds = %if.then.i, %while.body.i28 br i1 false, label %num_q.exit, label %while.body.i29 30num_q.exit: ; preds = %if.end.i, %if.else31 unreachable32 33if.end21: ; preds = %lor.lhs.false34 unreachable35 36if.end25: ; preds = %entry37 ret void38}39 40; PR1599041; We can have basic blocks with single entry PHI nodes.42define void @single_entry_phi(ptr %a, ptr %b) {43entry:44 br label %for.cond1.preheader45 46for.cond1.preheader:47 %inc10 = phi i32 [ 0, %entry ], [ %inc, %for.end ]48 br label %for.end49 50for.end:51 %malicious.phi = phi i32 [ 0, %for.cond1.preheader ]52 %inc = add nsw i32 %inc10, 153 %tobool = icmp eq i32 %inc, 054 br i1 %tobool, label %for.cond.for.end5, label %for.cond1.preheader55 56for.cond.for.end5:57 %and.lcssa = phi i32 [ %malicious.phi, %for.end ]58 store i32 %and.lcssa, ptr %a, align 459 ret void60}61