; LLVM IR from bqi343/cp-notebook :: Contests/Other Solutions/UCF HSPT/2016/UCF HSPT 16 - stacks.ll (Z5solvev)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@a = external dso_local global [10000 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [33 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #5
  %7 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %8

8:                                                ; preds = %18, %0
  %9 = load i32, ptr %2, align 4, !tbaa !5
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = icmp slt i32 %9, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  br label %21

13:                                               ; preds = %8
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [10000 x i32], ptr @a, i64 0, i64 %15
  %17 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %16)
  br label %18

18:                                               ; preds = %13
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = add nsw i32 %19, 1
  store i32 %20, ptr %2, align 4, !tbaa !5
  br label %8, !llvm.loop !9

21:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %22

22:                                               ; preds = %41, %21
  %23 = load i32, ptr %4, align 4, !tbaa !5
  %24 = load i32, ptr %1, align 4, !tbaa !5
  %25 = icmp slt i32 %23, %24
  br i1 %25, label %27, label %26

26:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %44

27:                                               ; preds = %22
  %28 = load i32, ptr %4, align 4, !tbaa !5
  %29 = and i32 %28, 1
  %30 = load i32, ptr %4, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds [10000 x i32], ptr @a, i64 0, i64 %31
  %33 = load i32, ptr %32, align 4, !tbaa !5
  %34 = and i32 %33, 1
  %35 = xor i32 %29, %34
  %36 = icmp ne i32 %35, 0
  br i1 %36, label %37, label %40

37:                                               ; preds = %27
  %38 = load i32, ptr %3, align 4, !tbaa !5
  %39 = add nsw i32 %38, 1
  store i32 %39, ptr %3, align 4, !tbaa !5
  br label %40

40:                                               ; preds = %37, %27
  br label %41

41:                                               ; preds = %40
  %42 = load i32, ptr %4, align 4, !tbaa !5
  %43 = add nsw i32 %42, 1
  store i32 %43, ptr %4, align 4, !tbaa !5
  br label %22, !llvm.loop !11

44:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  store i32 0, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %45

45:                                               ; preds = %63, %44
  %46 = load i32, ptr %6, align 4, !tbaa !5
  %47 = load i32, ptr %1, align 4, !tbaa !5
  %48 = icmp slt i32 %46, %47
  br i1 %48, label %50, label %49

49:                                               ; preds = %45
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  br label %66

50:                                               ; preds = %45
  %51 = load i32, ptr %6, align 4, !tbaa !5
  %52 = and i32 %51, 1
  %53 = load i32, ptr %6, align 4, !tbaa !5
  %54 = sext i32 %53 to i64
  %55 = getelementptr inbounds [10000 x i32], ptr @a, i64 0, i64 %54
  %56 = load i32, ptr %55, align 4, !tbaa !5
  %57 = and i32 %56, 1
  %58 = icmp eq i32 %52, %57
  br i1 %58, label %59, label %62

59:                                               ; preds = %50
  %60 = load i32, ptr %5, align 4, !tbaa !5
  %61 = add nsw i32 %60, 1
  store i32 %61, ptr %5, align 4, !tbaa !5
  br label %62

62:                                               ; preds = %59, %50
  br label %63

63:                                               ; preds = %62
  %64 = load i32, ptr %6, align 4, !tbaa !5
  %65 = add nsw i32 %64, 1
  store i32 %65, ptr %6, align 4, !tbaa !5
  br label %45, !llvm.loop !12

66:                                               ; preds = %49
  %67 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %68 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %69 = load i32, ptr %68, align 4, !tbaa !5
  %70 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %67, i32 noundef %69)
  %71 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %70, ptr noundef @.str.1)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #5
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #4

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@a = external dso_local global [10000 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [33 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  %4 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %6 = icmp sgt i32 %5, 0
  br i1 %6, label %.lr.ph, label %._crit_edge.thread

._crit_edge.thread:                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #6
  br label %._crit_edge18.thread

._crit_edge:                                      ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #6
  %7 = icmp sgt i32 %20, 0
  br i1 %7, label %.lr.ph17.preheader, label %._crit_edge18.thread

.lr.ph17.preheader:                               ; preds = %._crit_edge
  %wide.trip.count = zext nneg i32 %20 to i64
  %min.iters.check = icmp ult i32 %20, 8
  br i1 %min.iters.check, label %.lr.ph17.preheader68, label %vector.ph

.lr.ph17.preheader68:                             ; preds = %middle.block, %.lr.ph17.preheader
  %indvars.iv30.ph = phi i64 [ 0, %.lr.ph17.preheader ], [ %n.vec, %middle.block ]
  %.ph69 = phi i32 [ 0, %.lr.ph17.preheader ], [ %17, %middle.block ]
  br label %.lr.ph17

vector.ph:                                        ; preds = %.lr.ph17.preheader
  %n.vec = and i64 %wide.trip.count, 2147483640
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %vec.phi = phi <4 x i32> [ zeroinitializer, %vector.ph ], [ %14, %vector.body ]
  %vec.phi42 = phi <4 x i32> [ zeroinitializer, %vector.ph ], [ %15, %vector.body ]
  %vec.ind = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %vector.ph ], [ %vec.ind.next, %vector.body ]
  %8 = getelementptr inbounds [10000 x i32], ptr @a, i64 0, i64 %index
  %9 = getelementptr inbounds i8, ptr %8, i64 16
  %wide.load = load <4 x i32>, ptr %8, align 16, !tbaa !5
  %wide.load44 = load <4 x i32>, ptr %9, align 16, !tbaa !5
  %10 = xor <4 x i32> %wide.load, %vec.ind
  %11 = xor <4 x i32> %wide.load44, %vec.ind
  %12 = and <4 x i32> %10, <i32 1, i32 1, i32 1, i32 1>
  %13 = and <4 x i32> %11, <i32 1, i32 1, i32 1, i32 1>
  %14 = add <4 x i32> %vec.phi, %12
  %15 = add <4 x i32> %vec.phi42, %13
  %index.next = add nuw i64 %index, 8
  %vec.ind.next = add <4 x i32> %vec.ind, <i32 8, i32 8, i32 8, i32 8>
  %16 = icmp eq i64 %index.next, %n.vec
  br i1 %16, label %middle.block, label %vector.body, !llvm.loop !9

middle.block:                                     ; preds = %vector.body
  %bin.rdx = add <4 x i32> %15, %14
  %17 = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %bin.rdx)
  %cmp.n = icmp eq i64 %n.vec, %wide.trip.count
  br i1 %cmp.n, label %._crit_edge18, label %.lr.ph17.preheader68

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %18 = getelementptr inbounds [10000 x i32], ptr @a, i64 0, i64 %indvars.iv
  %19 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %18)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %20 = load i32, ptr %1, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = icmp slt i64 %indvars.iv.next, %21
  br i1 %22, label %.lr.ph, label %._crit_edge, !llvm.loop !13

._crit_edge18.thread:                             ; preds = %._crit_edge, %._crit_edge.thread
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #6
  br label %._crit_edge25

._crit_edge18:                                    ; preds = %.lr.ph17, %middle.block
  %spec.select.lcssa = phi i32 [ %17, %middle.block ], [ %spec.select, %.lr.ph17 ]
  store i32 %spec.select.lcssa, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #6
  br i1 %7, label %.lr.ph24.preheader, label %._crit_edge25

.lr.ph24.preheader:                               ; preds = %._crit_edge18
  %wide.trip.count36 = zext nneg i32 %20 to i64
  %min.iters.check47 = icmp ult i32 %20, 8
  br i1 %min.iters.check47, label %.lr.ph24.preheader66, label %vector.ph48

.lr.ph24.preheader66:                             ; preds = %middle.block45, %.lr.ph24.preheader
  %indvars.iv33.ph = phi i64 [ 0, %.lr.ph24.preheader ], [ %n.vec50, %middle.block45 ]
  %.ph = phi i32 [ 0, %.lr.ph24.preheader ], [ %34, %middle.block45 ]
  br label %.lr.ph24

vector.ph48:                                      ; preds = %.lr.ph24.preheader
  %n.vec50 = and i64 %wide.trip.count, 2147483640
  br label %vector.body52

vector.body52:                                    ; preds = %vector.body52, %vector.ph48
  %index53 = phi i64 [ 0, %vector.ph48 ], [ %index.next62, %vector.body52 ]
  %vec.phi54 = phi <4 x i32> [ zeroinitializer, %vector.ph48 ], [ %31, %vector.body52 ]
  %vec.phi55 = phi <4 x i32> [ zeroinitializer, %vector.ph48 ], [ %32, %vector.body52 ]
  %vec.ind56 = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %vector.ph48 ], [ %vec.ind.next59, %vector.body52 ]
  %23 = getelementptr inbounds [10000 x i32], ptr @a, i64 0, i64 %index53
  %24 = getelementptr inbounds i8, ptr %23, i64 16
  %wide.load60 = load <4 x i32>, ptr %23, align 16, !tbaa !5
  %wide.load61 = load <4 x i32>, ptr %24, align 16, !tbaa !5
  %25 = xor <4 x i32> %wide.load60, %vec.ind56
  %26 = xor <4 x i32> %wide.load61, %vec.ind56
  %27 = and <4 x i32> %25, <i32 1, i32 1, i32 1, i32 1>
  %28 = and <4 x i32> %26, <i32 1, i32 1, i32 1, i32 1>
  %29 = xor <4 x i32> %27, <i32 1, i32 1, i32 1, i32 1>
  %30 = xor <4 x i32> %28, <i32 1, i32 1, i32 1, i32 1>
  %31 = add <4 x i32> %vec.phi54, %29
  %32 = add <4 x i32> %vec.phi55, %30
  %index.next62 = add nuw i64 %index53, 8
  %vec.ind.next59 = add <4 x i32> %vec.ind56, <i32 8, i32 8, i32 8, i32 8>
  %33 = icmp eq i64 %index.next62, %n.vec50
  br i1 %33, label %middle.block45, label %vector.body52, !llvm.loop !14

middle.block45:                                   ; preds = %vector.body52
  %bin.rdx63 = add <4 x i32> %32, %31
  %34 = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %bin.rdx63)
  %cmp.n64 = icmp eq i64 %n.vec50, %wide.trip.count
  br i1 %cmp.n64, label %._crit_edge25, label %.lr.ph24.preheader66

.lr.ph17:                                         ; preds = %.lr.ph17.preheader68, %.lr.ph17
  %indvars.iv30 = phi i64 [ %indvars.iv.next31, %.lr.ph17 ], [ %indvars.iv30.ph, %.lr.ph17.preheader68 ]
  %35 = phi i32 [ %spec.select, %.lr.ph17 ], [ %.ph69, %.lr.ph17.preheader68 ]
  %36 = getelementptr inbounds [10000 x i32], ptr @a, i64 0, i64 %indvars.iv30
  %37 = load i32, ptr %36, align 4, !tbaa !5
  %38 = trunc nuw nsw i64 %indvars.iv30 to i32
  %39 = xor i32 %37, %38
  %40 = and i32 %39, 1
  %spec.select = add i32 %35, %40
  %indvars.iv.next31 = add nuw nsw i64 %indvars.iv30, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next31, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge18, label %.lr.ph17, !llvm.loop !15

._crit_edge25:                                    ; preds = %.lr.ph24, %middle.block45, %._crit_edge18.thread, %._crit_edge18
  %.lcssa21 = phi i32 [ 0, %._crit_edge18 ], [ 0, %._crit_edge18.thread ], [ %34, %middle.block45 ], [ %spec.select27, %.lr.ph24 ]
  store i32 %.lcssa21, ptr %3, align 4, !tbaa !5
  %41 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
  %42 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %43 = load i32, ptr %42, align 4, !tbaa !5
  %44 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %41, i32 noundef %43)
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %44, ptr noundef nonnull @.str.1)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  ret void

.lr.ph24:                                         ; preds = %.lr.ph24.preheader66, %.lr.ph24
  %indvars.iv33 = phi i64 [ %indvars.iv.next34, %.lr.ph24 ], [ %indvars.iv33.ph, %.lr.ph24.preheader66 ]
  %46 = phi i32 [ %spec.select27, %.lr.ph24 ], [ %.ph, %.lr.ph24.preheader66 ]
  %47 = getelementptr inbounds [10000 x i32], ptr @a, i64 0, i64 %indvars.iv33
  %48 = load i32, ptr %47, align 4, !tbaa !5
  %49 = trunc nuw nsw i64 %indvars.iv33 to i32
  %50 = xor i32 %48, %49
  %51 = and i32 %50, 1
  %52 = xor i32 %51, 1
  %spec.select27 = add i32 %46, %52
  %indvars.iv.next34 = add nuw nsw i64 %indvars.iv33, 1
  %exitcond37.not = icmp eq i64 %indvars.iv.next34, %wide.trip.count36
  br i1 %exitcond37.not, label %._crit_edge25, label %.lr.ph24, !llvm.loop !16
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.vector.reduce.add.v4i32(<4 x i32>) #5

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #6 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10, !11, !12}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!"llvm.loop.isvectorized", i32 1}
!12 = !{!"llvm.loop.unroll.runtime.disable"}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10, !11, !12}
!15 = distinct !{!15, !10, !12, !11}
!16 = distinct !{!16, !10, !12, !11}


; Effective O3 passes: CorrelatedValuePropagationPass,DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,ReassociatePass,SROAPass,SimplifyCFGPass