; LLVM IR from upupming/algorithm :: AdvancedLevel_C++/1067. Sort with Swap(0,i) (25)  (main)

; 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" }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca [100010 x i32], align 16
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 400040, ptr %5) #4
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %20, %0
  %10 = load i32, ptr %6, align 4, !tbaa !5
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %23

14:                                               ; preds = %9
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %16 = load i32, ptr %6, align 4, !tbaa !5
  %17 = load i32, ptr %3, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [100010 x i32], ptr %5, i64 0, i64 %18
  store i32 %16, ptr %19, align 4, !tbaa !5
  br label %20

20:                                               ; preds = %14
  %21 = load i32, ptr %6, align 4, !tbaa !5
  %22 = add nsw i32 %21, 1
  store i32 %22, ptr %6, align 4, !tbaa !5
  br label %9, !llvm.loop !9

23:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 1, ptr %7, align 4, !tbaa !5
  br label %24

24:                                               ; preds = %65, %23
  %25 = load i32, ptr %7, align 4, !tbaa !5
  %26 = load i32, ptr %2, align 4, !tbaa !5
  %27 = icmp slt i32 %25, %26
  br i1 %27, label %29, label %28

28:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %68

29:                                               ; preds = %24
  %30 = load i32, ptr %7, align 4, !tbaa !5
  %31 = load i32, ptr %7, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [100010 x i32], ptr %5, i64 0, i64 %32
  %34 = load i32, ptr %33, align 4, !tbaa !5
  %35 = icmp ne i32 %30, %34
  br i1 %35, label %36, label %64

36:                                               ; preds = %29
  br label %37

37:                                               ; preds = %41, %36
  %38 = getelementptr inbounds [100010 x i32], ptr %5, i64 0, i64 0
  %39 = load i32, ptr %38, align 16, !tbaa !5
  %40 = icmp ne i32 %39, 0
  br i1 %40, label %41, label %49

41:                                               ; preds = %37
  %42 = getelementptr inbounds [100010 x i32], ptr %5, i64 0, i64 0
  %43 = getelementptr inbounds [100010 x i32], ptr %5, i64 0, i64 0
  %44 = load i32, ptr %43, align 16, !tbaa !5
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds [100010 x i32], ptr %5, i64 0, i64 %45
  call void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4) %42, ptr noundef nonnull align 4 dereferenceable(4) %46) #4
  %47 = load i32, ptr %4, align 4, !tbaa !5
  %48 = add nsw i32 %47, 1
  store i32 %48, ptr %4, align 4, !tbaa !5
  br label %37, !llvm.loop !11

49:                                               ; preds = %37
  %50 = load i32, ptr %7, align 4, !tbaa !5
  %51 = load i32, ptr %7, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds [100010 x i32], ptr %5, i64 0, i64 %52
  %54 = load i32, ptr %53, align 4, !tbaa !5
  %55 = icmp ne i32 %50, %54
  br i1 %55, label %56, label %63

56:                                               ; preds = %49
  %57 = getelementptr inbounds [100010 x i32], ptr %5, i64 0, i64 0
  %58 = load i32, ptr %7, align 4, !tbaa !5
  %59 = sext i32 %58 to i64
  %60 = getelementptr inbounds [100010 x i32], ptr %5, i64 0, i64 %59
  call void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4) %57, ptr noundef nonnull align 4 dereferenceable(4) %60) #4
  %61 = load i32, ptr %4, align 4, !tbaa !5
  %62 = add nsw i32 %61, 1
  store i32 %62, ptr %4, align 4, !tbaa !5
  br label %63

63:                                               ; preds = %56, %49
  br label %64

64:                                               ; preds = %63, %29
  br label %65

65:                                               ; preds = %64
  %66 = load i32, ptr %7, align 4, !tbaa !5
  %67 = add nsw i32 %66, 1
  store i32 %67, ptr %7, align 4, !tbaa !5
  br label %24, !llvm.loop !12

68:                                               ; preds = %28
  %69 = load i32, ptr %4, align 4, !tbaa !5
  %70 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %69)
  call void @llvm.lifetime.end.p0(i64 400040, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  ret i32 0
}

; 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 nounwind uwtable
declare dso_local void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

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

attributes #0 = { mustprogress norecurse 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 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 #4 = { 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" }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca [100010 x i32], align 16
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 400040, ptr nonnull %3) #4
  %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_edge26

.preheader18:                                     ; preds = %.lr.ph
  %7 = icmp sgt i32 %13, 1
  br i1 %7, label %.lr.ph25, label %._crit_edge26

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.01319 = phi i32 [ %12, %.lr.ph ], [ 0, %0 ]
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %9 = load i32, ptr %2, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  %11 = getelementptr inbounds [100010 x i32], ptr %3, i64 0, i64 %10
  store i32 %.01319, ptr %11, align 4, !tbaa !5
  %12 = add nuw nsw i32 %.01319, 1
  %13 = load i32, ptr %1, align 4, !tbaa !5
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %.lr.ph, label %.preheader18, !llvm.loop !9

._crit_edge26:                                    ; preds = %27, %0, %.preheader18
  %.014.lcssa = phi i32 [ 0, %.preheader18 ], [ 0, %0 ], [ %.2, %27 ]
  %15 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.014.lcssa)
  call void @llvm.lifetime.end.p0(i64 400040, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #4
  ret i32 0

.lr.ph25:                                         ; preds = %.preheader18, %27
  %indvars.iv = phi i64 [ %indvars.iv.next, %27 ], [ 1, %.preheader18 ]
  %.01423 = phi i32 [ %.2, %27 ], [ 0, %.preheader18 ]
  %16 = getelementptr inbounds [100010 x i32], ptr %3, i64 0, i64 %indvars.iv
  %17 = load i32, ptr %16, align 4, !tbaa !5
  %18 = zext i32 %17 to i64
  %.not = icmp eq i64 %indvars.iv, %18
  br i1 %.not, label %27, label %.preheader

.preheader:                                       ; preds = %.lr.ph25
  %19 = load i32, ptr %3, align 16, !tbaa !5
  %.not1620 = icmp eq i32 %19, 0
  br i1 %.not1620, label %._crit_edge, label %.lr.ph22

.lr.ph22:                                         ; preds = %.preheader, %.lr.ph22
  %20 = phi i32 [ %24, %.lr.ph22 ], [ %19, %.preheader ]
  %.121 = phi i32 [ %23, %.lr.ph22 ], [ %.01423, %.preheader ]
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [100010 x i32], ptr %3, i64 0, i64 %21
  call void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %22) #4
  %23 = add nsw i32 %.121, 1
  %24 = load i32, ptr %3, align 16, !tbaa !5
  %.not16 = icmp eq i32 %24, 0
  br i1 %.not16, label %._crit_edge.loopexit, label %.lr.ph22, !llvm.loop !11

._crit_edge.loopexit:                             ; preds = %.lr.ph22
  %.pre = load i32, ptr %16, align 4, !tbaa !5
  %.pre29 = zext i32 %.pre to i64
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.preheader
  %.pre-phi = phi i64 [ %.pre29, %._crit_edge.loopexit ], [ %18, %.preheader ]
  %.1.lcssa = phi i32 [ %23, %._crit_edge.loopexit ], [ %.01423, %.preheader ]
  %.not17 = icmp eq i64 %indvars.iv, %.pre-phi
  br i1 %.not17, label %27, label %25

25:                                               ; preds = %._crit_edge
  call void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %16) #4
  %26 = add nsw i32 %.1.lcssa, 1
  br label %27

27:                                               ; preds = %.lr.ph25, %25, %._crit_edge
  %.2 = phi i32 [ %26, %25 ], [ %.1.lcssa, %._crit_edge ], [ %.01423, %.lr.ph25 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %28 = load i32, ptr %1, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = icmp slt i64 %indvars.iv.next, %29
  br i1 %30, label %.lr.ph25, label %._crit_edge26, !llvm.loop !12
}

; 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 nounwind uwtable
declare dso_local void @_ZSt4swapIiENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) 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

attributes #0 = { mustprogress norecurse 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 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 #4 = { 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}


; Effective O3 passes: BDCEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass