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      1 ; RUN: opt -loop-reduce -S %s
      2 
      3 
      4 target datalayout = "e-m:e-p:32:32-i64:64-f80:128-n8:16:32:64-S128"
      5 target triple = "x86_64-pc-linux-gnux32"
      6 
      7 %"class.llvm::AttributeSetNode.230.2029.3828.6141.6912.7683.8454.9482.9996.10253.18506" = type { %"class.llvm::FoldingSetImpl::Node.1.1801.3600.5913.6684.7455.8226.9254.9768.10025.18505", i32 }
      8 %"class.llvm::FoldingSetImpl::Node.1.1801.3600.5913.6684.7455.8226.9254.9768.10025.18505" = type { i8* }
      9 %"struct.std::pair.241.2040.3839.6152.6923.7694.8465.9493.10007.10264.18507" = type { i32, %"class.llvm::AttributeSetNode.230.2029.3828.6141.6912.7683.8454.9482.9996.10253.18506"* }
     10 %"class.llvm::Attribute.222.2021.3820.6133.6904.7675.8446.9474.9988.10245.18509" = type { %"class.llvm::AttributeImpl.2.1802.3601.5914.6685.7456.8227.9255.9769.10026.18508"* }
     11 %"class.llvm::AttributeImpl.2.1802.3601.5914.6685.7456.8227.9255.9769.10026.18508" = type <{ i32 (...)**, %"class.llvm::FoldingSetImpl::Node.1.1801.3600.5913.6684.7455.8226.9254.9768.10025.18505", i8, [3 x i8] }>
     12 
     13 ; Function Attrs: nounwind uwtable
     14 define void @_ZNK4llvm11AttrBuilder13hasAttributesENS_12AttributeSetEy() #0 align 2 {
     15 entry:
     16   br i1 undef, label %cond.false, label %_ZNK4llvm12AttributeSet11getNumSlotsEv.exit
     17 
     18 _ZNK4llvm12AttributeSet11getNumSlotsEv.exit:      ; preds = %entry
     19   br i1 undef, label %cond.false, label %for.body.lr.ph.for.body.lr.ph.split_crit_edge
     20 
     21 for.body.lr.ph.for.body.lr.ph.split_crit_edge:    ; preds = %_ZNK4llvm12AttributeSet11getNumSlotsEv.exit
     22   br label %land.lhs.true.i
     23 
     24 land.lhs.true.i:                                  ; preds = %for.inc, %for.body.lr.ph.for.body.lr.ph.split_crit_edge
     25   %I.099 = phi i32 [ 0, %for.body.lr.ph.for.body.lr.ph.split_crit_edge ], [ %inc, %for.inc ]
     26   %cmp.i = icmp ugt i32 undef, %I.099
     27   br i1 %cmp.i, label %_ZNK4llvm12AttributeSet12getSlotIndexEj.exit, label %cond.false.i.split
     28 
     29 cond.false.i.split:                               ; preds = %land.lhs.true.i
     30   unreachable
     31 
     32 _ZNK4llvm12AttributeSet12getSlotIndexEj.exit:     ; preds = %land.lhs.true.i
     33   br i1 undef, label %for.end, label %for.inc
     34 
     35 for.inc:                                          ; preds = %_ZNK4llvm12AttributeSet12getSlotIndexEj.exit
     36   %inc = add i32 %I.099, 1
     37   br i1 undef, label %cond.false, label %land.lhs.true.i
     38 
     39 for.end:                                          ; preds = %_ZNK4llvm12AttributeSet12getSlotIndexEj.exit
     40   %I.099.lcssa129 = phi i32 [ %I.099, %_ZNK4llvm12AttributeSet12getSlotIndexEj.exit ]
     41   br i1 undef, label %cond.false, label %_ZNK4llvm12AttributeSet3endEj.exit
     42 
     43 cond.false:                                       ; preds = %for.end, %for.inc, %_ZNK4llvm12AttributeSet11getNumSlotsEv.exit, %entry
     44   unreachable
     45 
     46 _ZNK4llvm12AttributeSet3endEj.exit:               ; preds = %for.end
     47   %second.i.i.i = getelementptr inbounds %"struct.std::pair.241.2040.3839.6152.6923.7694.8465.9493.10007.10264.18507", %"struct.std::pair.241.2040.3839.6152.6923.7694.8465.9493.10007.10264.18507"* undef, i32 %I.099.lcssa129, i32 1
     48   %0 = load %"class.llvm::AttributeSetNode.230.2029.3828.6141.6912.7683.8454.9482.9996.10253.18506"*, %"class.llvm::AttributeSetNode.230.2029.3828.6141.6912.7683.8454.9482.9996.10253.18506"** %second.i.i.i, align 4, !tbaa !2
     49   %NumAttrs.i.i.i = getelementptr inbounds %"class.llvm::AttributeSetNode.230.2029.3828.6141.6912.7683.8454.9482.9996.10253.18506", %"class.llvm::AttributeSetNode.230.2029.3828.6141.6912.7683.8454.9482.9996.10253.18506"* %0, i32 0, i32 1
     50   %1 = load i32, i32* %NumAttrs.i.i.i, align 4, !tbaa !8
     51   %add.ptr.i.i.i55 = getelementptr inbounds %"class.llvm::Attribute.222.2021.3820.6133.6904.7675.8446.9474.9988.10245.18509", %"class.llvm::Attribute.222.2021.3820.6133.6904.7675.8446.9474.9988.10245.18509"* undef, i32 %1
     52   br i1 undef, label %return, label %for.body11
     53 
     54 for.cond9:                                        ; preds = %_ZNK4llvm9Attribute13getKindAsEnumEv.exit
     55   %cmp10 = icmp eq %"class.llvm::Attribute.222.2021.3820.6133.6904.7675.8446.9474.9988.10245.18509"* %incdec.ptr, %add.ptr.i.i.i55
     56   br i1 %cmp10, label %return, label %for.body11
     57 
     58 for.body11:                                       ; preds = %for.cond9, %_ZNK4llvm12AttributeSet3endEj.exit
     59   %I5.096 = phi %"class.llvm::Attribute.222.2021.3820.6133.6904.7675.8446.9474.9988.10245.18509"* [ %incdec.ptr, %for.cond9 ], [ undef, %_ZNK4llvm12AttributeSet3endEj.exit ]
     60   %2 = bitcast %"class.llvm::Attribute.222.2021.3820.6133.6904.7675.8446.9474.9988.10245.18509"* %I5.096 to i32*
     61   %3 = load i32, i32* %2, align 4, !tbaa !10
     62   %tobool.i59 = icmp eq i32 %3, 0
     63   br i1 %tobool.i59, label %cond.false21, label %_ZNK4llvm9Attribute15isEnumAttributeEv.exit
     64 
     65 _ZNK4llvm9Attribute15isEnumAttributeEv.exit:      ; preds = %for.body11
     66   switch i8 undef, label %cond.false21 [
     67     i8 0, label %_ZNK4llvm9Attribute13getKindAsEnumEv.exit
     68     i8 1, label %_ZNK4llvm9Attribute13getKindAsEnumEv.exit
     69     i8 2, label %_ZNK4llvm9Attribute15getKindAsStringEv.exit
     70   ]
     71 
     72 _ZNK4llvm9Attribute13getKindAsEnumEv.exit:        ; preds = %_ZNK4llvm9Attribute15isEnumAttributeEv.exit, %_ZNK4llvm9Attribute15isEnumAttributeEv.exit
     73   %incdec.ptr = getelementptr inbounds %"class.llvm::Attribute.222.2021.3820.6133.6904.7675.8446.9474.9988.10245.18509", %"class.llvm::Attribute.222.2021.3820.6133.6904.7675.8446.9474.9988.10245.18509"* %I5.096, i32 1
     74   br i1 undef, label %for.cond9, label %return
     75 
     76 cond.false21:                                     ; preds = %_ZNK4llvm9Attribute15isEnumAttributeEv.exit, %for.body11
     77   unreachable
     78 
     79 _ZNK4llvm9Attribute15getKindAsStringEv.exit:      ; preds = %_ZNK4llvm9Attribute15isEnumAttributeEv.exit
     80   unreachable
     81 
     82 return:                                           ; preds = %_ZNK4llvm9Attribute13getKindAsEnumEv.exit, %for.cond9, %_ZNK4llvm12AttributeSet3endEj.exit
     83   ret void
     84 }
     85 
     86 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
     87 
     88 !llvm.module.flags = !{!0}
     89 !llvm.ident = !{!1}
     90 
     91 !0 = !{i32 1, !"PIC Level", i32 2}
     92 !1 = !{!"clang version 3.7.0 (ssh://llvm (a] gnu-4.sc.intel.com/export/server/git/llvm/clang 4c31740d4f81614b6d278c7825cfdae5a1c78799) (llvm/llvm.git b693958bd09144aed90312709a7e2ccf7124eb53)"}
     93 !2 = !{!3, !7, i64 4}
     94 !3 = !{!"_ZTSSt4pairIjPN4llvm16AttributeSetNodeEE", !4, i64 0, !7, i64 4}
     95 !4 = !{!"int", !5, i64 0}
     96 !5 = !{!"omnipotent char", !6, i64 0}
     97 !6 = !{!"Simple C/C++ TBAA"}
     98 !7 = !{!"any pointer", !5, i64 0}
     99 !8 = !{!9, !4, i64 4}
    100 !9 = !{!"_ZTSN4llvm16AttributeSetNodeE", !4, i64 4}
    101 !10 = !{!7, !7, i64 0}
    102