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      1 ; RUN: opt < %s -loop-vectorize -force-vector-unroll=2 -force-vector-width=8 -S | FileCheck %s
      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 target triple = "x86_64-apple-macosx"
      5 
      6 @b = common global i32 0, align 4
      7 @f = common global i32 0, align 4
      8 @a = common global i32 0, align 4
      9 @d = common global i32* null, align 8
     10 @e = common global i32* null, align 8
     11 @c = common global i32 0, align 4
     12 
     13 ; CHECK-LABEL-LABEL: @fn1(
     14 ; CHECK: vector.body
     15 define void @fn1() #0 {
     16 entry:
     17   br label %for.cond
     18 
     19 for.cond:                                         ; preds = %for.cond, %entry
     20   %i.0 = phi i32 [ undef, %entry ], [ %inc, %for.cond ]
     21   %cmp = icmp slt i32 %i.0, 0
     22   %call = tail call i32 @fn2(double fadd (double fsub (double undef, double undef), double 1.000000e+00)) #2
     23   %inc = add nsw i32 %i.0, 1
     24   br i1 %cmp, label %for.cond, label %for.cond4.preheader
     25 
     26 for.cond4.preheader:                              ; preds = %for.cond
     27   %call.lcssa = phi i32 [ %call, %for.cond ]
     28   %cmp514 = icmp sgt i32 %call.lcssa, 0
     29   br i1 %cmp514, label %for.cond7.preheader.lr.ph, label %for.end26
     30 
     31 for.cond7.preheader.lr.ph:                        ; preds = %for.cond4.preheader
     32   %0 = load i32** @e, align 8, !tbaa !0
     33   br label %for.cond7.preheader
     34 
     35 for.cond7.preheader:                              ; preds = %for.cond7.preheader.lr.ph, %for.inc23
     36   %y.017 = phi i32 [ 0, %for.cond7.preheader.lr.ph ], [ %inc24, %for.inc23 ]
     37   %i.116 = phi i32 [ 0, %for.cond7.preheader.lr.ph ], [ %i.2.lcssa, %for.inc23 ]
     38   %n.015 = phi i32 [ undef, %for.cond7.preheader.lr.ph ], [ %inc25, %for.inc23 ]
     39   %1 = load i32* @b, align 4, !tbaa !3
     40   %tobool11 = icmp eq i32 %1, 0
     41   br i1 %tobool11, label %for.inc23, label %for.body8.lr.ph
     42 
     43 for.body8.lr.ph:                                  ; preds = %for.cond7.preheader
     44   %add9 = add i32 %n.015, 1
     45   br label %for.body8
     46 
     47 for.body8:                                        ; preds = %for.body8.lr.ph, %for.inc19
     48   %indvars.iv19 = phi i64 [ 0, %for.body8.lr.ph ], [ %indvars.iv.next20, %for.inc19 ]
     49   %i.213 = phi i32 [ %i.116, %for.body8.lr.ph ], [ 0, %for.inc19 ]
     50   %2 = trunc i64 %indvars.iv19 to i32
     51   %add10 = add i32 %add9, %2
     52   store i32 %add10, i32* @f, align 4, !tbaa !3
     53   %idx.ext = sext i32 %add10 to i64
     54   %add.ptr = getelementptr inbounds i32* @a, i64 %idx.ext
     55   %tobool129 = icmp eq i32 %i.213, 0
     56   br i1 %tobool129, label %for.inc19, label %for.body13.lr.ph
     57 
     58 for.body13.lr.ph:                                 ; preds = %for.body8
     59   %3 = sext i32 %i.213 to i64
     60   br label %for.body13
     61 
     62 for.body13:                                       ; preds = %for.body13.lr.ph, %for.body13
     63   %indvars.iv = phi i64 [ %3, %for.body13.lr.ph ], [ %indvars.iv.next, %for.body13 ]
     64   %add.ptr.sum = add i64 %idx.ext, %indvars.iv
     65   %arrayidx = getelementptr inbounds i32* @a, i64 %add.ptr.sum
     66   %4 = load i32* %arrayidx, align 4, !tbaa !3
     67   %arrayidx15 = getelementptr inbounds i32* %0, i64 %indvars.iv
     68   store i32 %4, i32* %arrayidx15, align 4, !tbaa !3
     69   %indvars.iv.next = add i64 %indvars.iv, 1
     70   %5 = trunc i64 %indvars.iv.next to i32
     71   %tobool12 = icmp eq i32 %5, 0
     72   br i1 %tobool12, label %for.cond11.for.inc19_crit_edge, label %for.body13
     73 
     74 for.cond11.for.inc19_crit_edge:                   ; preds = %for.body13
     75   br label %for.inc19
     76 
     77 for.inc19:                                        ; preds = %for.cond11.for.inc19_crit_edge, %for.body8
     78   %6 = load i32* @c, align 4, !tbaa !3
     79   %inc20 = add nsw i32 %6, 1
     80   store i32 %inc20, i32* @c, align 4, !tbaa !3
     81   %indvars.iv.next20 = add i64 %indvars.iv19, 1
     82   %7 = load i32* @b, align 4, !tbaa !3
     83   %tobool = icmp eq i32 %7, 0
     84   br i1 %tobool, label %for.cond7.for.inc23_crit_edge, label %for.body8
     85 
     86 for.cond7.for.inc23_crit_edge:                    ; preds = %for.inc19
     87   %add.ptr.lcssa = phi i32* [ %add.ptr, %for.inc19 ]
     88   store i32* %add.ptr.lcssa, i32** @d, align 8, !tbaa !0
     89   br label %for.inc23
     90 
     91 for.inc23:                                        ; preds = %for.cond7.for.inc23_crit_edge, %for.cond7.preheader
     92   %i.2.lcssa = phi i32 [ 0, %for.cond7.for.inc23_crit_edge ], [ %i.116, %for.cond7.preheader ]
     93   %inc24 = add nsw i32 %y.017, 1
     94   %inc25 = add nsw i32 %n.015, 1
     95   %exitcond = icmp ne i32 %inc24, %call.lcssa
     96   br i1 %exitcond, label %for.cond7.preheader, label %for.cond4.for.end26_crit_edge
     97 
     98 for.cond4.for.end26_crit_edge:                    ; preds = %for.inc23
     99   br label %for.end26
    100 
    101 for.end26:                                        ; preds = %for.cond4.for.end26_crit_edge, %for.cond4.preheader
    102   ret void
    103 }
    104 declare i32 @fn2(double) #1
    105 
    106 attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
    107 attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
    108 
    109 !0 = metadata !{metadata !"int", metadata !1}
    110 !1 = metadata !{metadata !"omnipotent char", metadata !2}
    111 !2 = metadata !{metadata !"Simple C/C++ TBAA"}
    112 !3 = metadata !{metadata !"double", metadata !1}
    113 !4 = metadata !{metadata !"any pointer", metadata !1}
    114