; LLVM IR from MinaFaried3/Assiut-University-Training---Newcomers :: l-sheet9_general_medium/C-Dragons.ll (Z9Solution1v)

; 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
@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z14insertion_sortPxS_x(ptr noundef, ptr noundef, i64 noundef) #0

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

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z9Solution1v() #2 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i8, align 1
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %1)
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef nonnull align 8 dereferenceable(8) %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %11, i64 8)
  %13 = extractvalue { i64, i1 } %12, 1
  %14 = extractvalue { i64, i1 } %12, 0
  %15 = select i1 %13, i64 -1, i64 %14
  %16 = call noalias noundef nonnull ptr @_Znam(i64 noundef %15) #7
  store ptr %16, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  %17 = load i64, ptr %2, align 8, !tbaa !5
  %18 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %17, i64 8)
  %19 = extractvalue { i64, i1 } %18, 1
  %20 = extractvalue { i64, i1 } %18, 0
  %21 = select i1 %19, i64 -1, i64 %20
  %22 = call noalias noundef nonnull ptr @_Znam(i64 noundef %21) #7
  store ptr %22, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  store i32 0, ptr %5, align 4, !tbaa !11
  br label %23

23:                                               ; preds = %40, %0
  %24 = load i32, ptr %5, align 4, !tbaa !11
  %25 = sext i32 %24 to i64
  %26 = load i64, ptr %2, align 8, !tbaa !5
  %27 = icmp slt i64 %25, %26
  br i1 %27, label %29, label %28

28:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  br label %43

29:                                               ; preds = %23
  %30 = load ptr, ptr %3, align 8, !tbaa !9
  %31 = load i32, ptr %5, align 4, !tbaa !11
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds i64, ptr %30, i64 %32
  %34 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %33)
  %35 = load ptr, ptr %4, align 8, !tbaa !9
  %36 = load i32, ptr %5, align 4, !tbaa !11
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds i64, ptr %35, i64 %37
  %39 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %34, ptr noundef nonnull align 8 dereferenceable(8) %38)
  br label %40

40:                                               ; preds = %29
  %41 = load i32, ptr %5, align 4, !tbaa !11
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %5, align 4, !tbaa !11
  br label %23, !llvm.loop !13

43:                                               ; preds = %28
  %44 = load ptr, ptr %3, align 8, !tbaa !9
  %45 = load ptr, ptr %4, align 8, !tbaa !9
  %46 = load i64, ptr %2, align 8, !tbaa !5
  call void @_Z14insertion_sortPxS_x(ptr noundef %44, ptr noundef %45, i64 noundef %46)
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #6
  store i8 1, ptr %6, align 1, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  store i32 0, ptr %7, align 4, !tbaa !11
  br label %47

47:                                               ; preds = %71, %43
  %48 = load i32, ptr %7, align 4, !tbaa !11
  %49 = sext i32 %48 to i64
  %50 = load i64, ptr %2, align 8, !tbaa !5
  %51 = icmp slt i64 %49, %50
  br i1 %51, label %53, label %52

52:                                               ; preds = %47
  store i32 5, ptr %8, align 4
  br label %74

53:                                               ; preds = %47
  %54 = load i64, ptr %1, align 8, !tbaa !5
  %55 = load ptr, ptr %3, align 8, !tbaa !9
  %56 = load i32, ptr %7, align 4, !tbaa !11
  %57 = sext i32 %56 to i64
  %58 = getelementptr inbounds i64, ptr %55, i64 %57
  %59 = load i64, ptr %58, align 8, !tbaa !5
  %60 = icmp sgt i64 %54, %59
  br i1 %60, label %61, label %69

61:                                               ; preds = %53
  %62 = load ptr, ptr %4, align 8, !tbaa !9
  %63 = load i32, ptr %7, align 4, !tbaa !11
  %64 = sext i32 %63 to i64
  %65 = getelementptr inbounds i64, ptr %62, i64 %64
  %66 = load i64, ptr %65, align 8, !tbaa !5
  %67 = load i64, ptr %1, align 8, !tbaa !5
  %68 = add nsw i64 %67, %66
  store i64 %68, ptr %1, align 8, !tbaa !5
  br label %70

69:                                               ; preds = %53
  store i8 0, ptr %6, align 1, !tbaa !15
  store i32 5, ptr %8, align 4
  br label %74

70:                                               ; preds = %61
  br label %71

71:                                               ; preds = %70
  %72 = load i32, ptr %7, align 4, !tbaa !11
  %73 = add nsw i32 %72, 1
  store i32 %73, ptr %7, align 4, !tbaa !11
  br label %47, !llvm.loop !17

74:                                               ; preds = %69, %52
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  br label %75

75:                                               ; preds = %74
  %76 = load i8, ptr %6, align 1, !tbaa !15, !range !18, !noundef !19
  %77 = trunc i8 %76 to i1
  br i1 %77, label %78, label %80

78:                                               ; preds = %75
  %79 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  br label %82

80:                                               ; preds = %75
  %81 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
  br label %82

82:                                               ; preds = %80, %78
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #6
  ret void
}

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #4

; 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) #5

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nobuiltin allocsize(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 = { 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 #6 = { nounwind }
attributes #7 = { builtin allocsize(0) }

!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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{!16, !16, i64 0}
!16 = !{!"bool", !7, i64 0}
!17 = distinct !{!17, !14}
!18 = !{i8 0, i8 2}
!19 = !{}


; 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
@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z14insertion_sortPxS_x(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #0

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

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z9Solution1v() local_unnamed_addr #2 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #5
  %3 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %1)
  %4 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %5 = load i64, ptr %2, align 8, !tbaa !5
  %6 = icmp ugt i64 %5, 2305843009213693951
  %7 = shl i64 %5, 3
  %8 = select i1 %6, i64 -1, i64 %7
  %9 = call noalias noundef nonnull ptr @_Znam(i64 noundef %8) #6
  %10 = call noalias noundef nonnull ptr @_Znam(i64 noundef %8) #6
  %11 = icmp sgt i64 %5, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  %.lcssa = phi i64 [ %5, %0 ], [ %17, %.lr.ph ]
  call void @_Z14insertion_sortPxS_x(ptr noundef nonnull %9, ptr noundef nonnull %10, i64 noundef %.lcssa)
  %12 = load i64, ptr %2, align 8, !tbaa !5
  %.not21 = icmp sgt i64 %12, 0
  br i1 %.not21, label %.lr.ph24.preheader, label %.critedge

.lr.ph24.preheader:                               ; preds = %._crit_edge
  %.promoted = load i64, ptr %1, align 8, !tbaa !5
  br label %.lr.ph24

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %13 = getelementptr inbounds i64, ptr %9, i64 %indvars.iv
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %13)
  %15 = getelementptr inbounds i64, ptr %10, i64 %indvars.iv
  %16 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %14, ptr noundef nonnull align 8 dereferenceable(8) %15)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %17 = load i64, ptr %2, align 8, !tbaa !5
  %18 = icmp sgt i64 %17, %indvars.iv.next
  br i1 %18, label %.lr.ph, label %._crit_edge, !llvm.loop !9

.lr.ph24:                                         ; preds = %.lr.ph24.preheader, %23
  %indvars.iv27 = phi i64 [ 0, %.lr.ph24.preheader ], [ %indvars.iv.next28, %23 ]
  %19 = phi i64 [ %.promoted, %.lr.ph24.preheader ], [ %26, %23 ]
  %20 = getelementptr inbounds i64, ptr %9, i64 %indvars.iv27
  %21 = load i64, ptr %20, align 8, !tbaa !5
  %22 = icmp sgt i64 %19, %21
  br i1 %22, label %23, label %.critedge

23:                                               ; preds = %.lr.ph24
  %24 = getelementptr inbounds i64, ptr %10, i64 %indvars.iv27
  %25 = load i64, ptr %24, align 8, !tbaa !5
  %26 = add nsw i64 %25, %19
  store i64 %26, ptr %1, align 8, !tbaa !5
  %indvars.iv.next28 = add nuw nsw i64 %indvars.iv27, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next28, %12
  br i1 %exitcond.not, label %.critedge, label %.lr.ph24, !llvm.loop !11

.critedge:                                        ; preds = %.lr.ph24, %23, %._crit_edge
  %.str.1.sink = phi ptr [ @.str, %._crit_edge ], [ @.str, %23 ], [ @.str.1, %.lr.ph24 ]
  %27 = 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.1.sink)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  ret void
}

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #3

; 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 #4

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { nobuiltin allocsize(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 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 }
attributes #6 = { builtin allocsize(0) }

!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 = !{!"long long", !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}


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