; LLVM IR from TheAlgorithms/C-Plus-Plus :: sorting (shell_sort2)

; 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_ostream" = type { ptr, %"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 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [36 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [36 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [37 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [38 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [38 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [39 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [25 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [42 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [21 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z8test_inti(i32 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 speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #2

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

; Function Attrs: nounwind
declare i32 @rand() #4

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

; Function Attrs: nounwind
declare i64 @clock() #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7sorting10shell_sortIiEEvPT_m(ptr noundef, i64 noundef) #5

; 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) #6

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEd(ptr noundef nonnull align 8 dereferenceable(8), double noundef) #0 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #7

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z6test_fi(i32 noundef) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr noundef %1) #8 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  %12 = alloca double, align 8
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  %13 = call i64 @time(ptr noundef null) #10
  %14 = trunc i64 %13 to i32
  call void @srand(i32 noundef %14) #10
  call void @_Z8test_inti(i32 noundef 100)
  %15 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.5)
  call void @_Z8test_inti(i32 noundef 1000)
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.6)
  call void @_Z8test_inti(i32 noundef 10000)
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.7)
  call void @_Z6test_fi(i32 noundef 100)
  %18 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.8)
  call void @_Z6test_fi(i32 noundef 1000)
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.9)
  call void @_Z6test_fi(i32 noundef 10000)
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.10)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #10
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #10
  %21 = load i32, ptr %4, align 4, !tbaa !5
  %22 = icmp eq i32 %21, 2
  br i1 %22, label %23, label %28

23:                                               ; preds = %2
  %24 = load ptr, ptr %5, align 8, !tbaa !9
  %25 = getelementptr inbounds ptr, ptr %24, i64 1
  %26 = load ptr, ptr %25, align 8, !tbaa !9
  %27 = call i32 @atoi(ptr noundef %26) #11
  store i32 %27, ptr %7, align 4, !tbaa !5
  br label %29

28:                                               ; preds = %2
  store i32 200, ptr %7, align 4, !tbaa !5
  br label %29

29:                                               ; preds = %28, %23
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #10
  %30 = load i32, ptr %7, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %31, i64 4)
  %33 = extractvalue { i64, i1 } %32, 1
  %34 = extractvalue { i64, i1 } %32, 0
  %35 = select i1 %33, i64 -1, i64 %34
  %36 = call noalias noundef nonnull ptr @_Znam(i64 noundef %35) #12
  store ptr %36, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #10
  store i32 1800, ptr %9, align 4, !tbaa !5
  %37 = call i64 @time(ptr noundef null) #10
  %38 = trunc i64 %37 to i32
  call void @srand(i32 noundef %38) #10
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %39

39:                                               ; preds = %54, %29
  %40 = load i32, ptr %6, align 4, !tbaa !5
  %41 = load i32, ptr %7, align 4, !tbaa !5
  %42 = icmp slt i32 %40, %41
  br i1 %42, label %43, label %57

43:                                               ; preds = %39
  %44 = call i32 @rand() #10
  %45 = load i32, ptr %9, align 4, !tbaa !5
  %46 = srem i32 %44, %45
  %47 = load i32, ptr %9, align 4, !tbaa !5
  %48 = ashr i32 %47, 1
  %49 = sub nsw i32 %46, %48
  %50 = load ptr, ptr %8, align 8, !tbaa !9
  %51 = load i32, ptr %6, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds i32, ptr %50, i64 %52
  store i32 %49, ptr %53, align 4, !tbaa !5
  br label %54

54:                                               ; preds = %43
  %55 = load i32, ptr %6, align 4, !tbaa !5
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr %6, align 4, !tbaa !5
  br label %39, !llvm.loop !11

57:                                               ; preds = %39
  %58 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.11)
  %59 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %58, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %60 = load ptr, ptr %8, align 8, !tbaa !9
  %61 = load i32, ptr %7, align 4, !tbaa !5
  %62 = sext i32 %61 to i64
  call void @_Z9show_dataIiEvPT_m(ptr noundef %60, i64 noundef %62)
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #10
  %63 = call i64 @clock() #10
  store i64 %63, ptr %10, align 8, !tbaa !13
  %64 = load ptr, ptr %8, align 8, !tbaa !9
  %65 = load i32, ptr %7, align 4, !tbaa !5
  %66 = sext i32 %65 to i64
  call void @_ZN7sorting10shell_sortIiEEvPT_m(ptr noundef %64, i64 noundef %66)
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #10
  %67 = call i64 @clock() #10
  store i64 %67, ptr %11, align 8, !tbaa !13
  %68 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %69 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %68, ptr noundef @.str.12)
  %70 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %69, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %71 = load ptr, ptr %8, align 8, !tbaa !9
  %72 = load i32, ptr %7, align 4, !tbaa !5
  %73 = sext i32 %72 to i64
  call void @_Z9show_dataIiEvPT_m(ptr noundef %71, i64 noundef %73)
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #10
  %74 = load i64, ptr %11, align 8, !tbaa !13
  %75 = load i64, ptr %10, align 8, !tbaa !13
  %76 = sub nsw i64 %74, %75
  %77 = sitofp i64 %76 to float
  %78 = fmul float %77, 1.000000e+00
  %79 = fdiv float %78, 1.000000e+06
  %80 = fpext float %79 to double
  store double %80, ptr %12, align 8, !tbaa !15
  %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.13)
  %82 = load double, ptr %12, align 8, !tbaa !15
  %83 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEd(ptr noundef nonnull align 8 dereferenceable(8) %81, double noundef %82)
  %84 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %83, ptr noundef @.str.1)
  %85 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %84, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %86 = load ptr, ptr %8, align 8, !tbaa !9
  %87 = icmp eq ptr %86, null
  br i1 %87, label %89, label %88

88:                                               ; preds = %57
  call void @_ZdaPv(ptr noundef %86) #13
  br label %89

89:                                               ; preds = %88, %57
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #10
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #10
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #10
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #10
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #10
  ret i32 0
}

; Function Attrs: nounwind
declare void @srand(i32 noundef) #4

; Function Attrs: nounwind
declare i64 @time(ptr noundef) #4

; Function Attrs: inlinehint mustprogress nounwind willreturn memory(read) uwtable
declare i32 @atoi(ptr noundef nonnull) #9

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #6

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z9show_dataIiEvPT_m(ptr noundef, i64 noundef) #0

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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = { nounwind "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 = { 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 #6 = { 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 #7 = { nobuiltin nounwind "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 #8 = { 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 #9 = { inlinehint mustprogress nounwind willreturn memory(read) 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 #10 = { nounwind }
attributes #11 = { nounwind willreturn memory(read) }
attributes #12 = { builtin allocsize(0) }
attributes #13 = { builtin 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 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"long", !7, i64 0}
!15 = !{!16, !16, i64 0}
!16 = !{!"double", !7, i64 0}


; 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_ostream" = type { ptr, %"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 }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [36 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [36 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [37 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [38 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [38 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [39 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [25 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [42 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [21 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z8test_inti(i32 noundef) local_unnamed_addr #0

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind
declare i32 @rand() local_unnamed_addr #2

; Function Attrs: nounwind
declare i64 @clock() local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7sorting10shell_sortIiEEvPT_m(ptr noundef, 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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEd(ptr noundef nonnull align 8 dereferenceable(8), double noundef) local_unnamed_addr #0 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #5

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z6test_fi(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #6 {
  %3 = tail call i64 @time(ptr noundef null) #8
  %4 = trunc i64 %3 to i32
  tail call void @srand(i32 noundef %4) #8
  tail call void @_Z8test_inti(i32 noundef 100)
  %5 = tail 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.5)
  tail call void @_Z8test_inti(i32 noundef 1000)
  %6 = tail 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.6)
  tail call void @_Z8test_inti(i32 noundef 10000)
  %7 = tail 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.7)
  tail call void @_Z6test_fi(i32 noundef 100)
  %8 = tail 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.8)
  tail call void @_Z6test_fi(i32 noundef 1000)
  %9 = tail 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.9)
  tail call void @_Z6test_fi(i32 noundef 10000)
  %10 = tail 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.10)
  %11 = icmp eq i32 %0, 2
  br i1 %11, label %12, label %.thread

12:                                               ; preds = %2
  %13 = getelementptr inbounds i8, ptr %1, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !5
  %15 = tail call i32 @atoi(ptr nocapture noundef %14) #9
  %.fr = freeze i32 %15
  %16 = sext i32 %.fr to i64
  %17 = icmp slt i32 %.fr, 0
  %18 = shl nsw i64 %16, 2
  %spec.select = select i1 %17, i64 -1, i64 %18
  br label %.thread

.thread:                                          ; preds = %12, %2
  %19 = phi i64 [ 200, %2 ], [ %16, %12 ]
  %.01922 = phi i32 [ 200, %2 ], [ %.fr, %12 ]
  %20 = phi i64 [ 800, %2 ], [ %spec.select, %12 ]
  %21 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %20) #10
  %22 = tail call i64 @time(ptr noundef null) #8
  %23 = trunc i64 %22 to i32
  tail call void @srand(i32 noundef %23) #8
  %24 = icmp sgt i32 %.01922, 0
  br i1 %24, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %.thread
  %wide.trip.count = zext nneg i32 %.01922 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %25 = tail call i32 @rand() #8
  %26 = srem i32 %25, 1800
  %27 = add nsw i32 %26, -900
  %28 = getelementptr inbounds i32, ptr %21, i64 %indvars.iv
  store i32 %27, ptr %28, align 4, !tbaa !9
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph, %.thread
  %29 = tail 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.11)
  %30 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %29, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  tail call void @_Z9show_dataIiEvPT_m(ptr noundef nonnull %21, i64 noundef %19)
  %31 = tail call i64 @clock() #8
  tail call void @_ZN7sorting10shell_sortIiEEvPT_m(ptr noundef nonnull %21, i64 noundef %19)
  %32 = tail call i64 @clock() #8
  %33 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %34 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %33, ptr noundef nonnull @.str.12)
  %35 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %34, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  tail call void @_Z9show_dataIiEvPT_m(ptr noundef nonnull %21, i64 noundef %19)
  %36 = sub nsw i64 %32, %31
  %37 = sitofp i64 %36 to float
  %38 = fdiv float %37, 1.000000e+06
  %39 = fpext float %38 to double
  %40 = tail 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.13)
  %41 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEd(ptr noundef nonnull align 8 dereferenceable(8) %40, double noundef %39)
  %42 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %41, ptr noundef nonnull @.str.1)
  %43 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %42, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  tail call void @_ZdaPv(ptr noundef nonnull %21) #11
  ret i32 0
}

; Function Attrs: nounwind
declare void @srand(i32 noundef) local_unnamed_addr #2

; Function Attrs: nounwind
declare i64 @time(ptr noundef) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nofree nounwind willreturn memory(read) uwtable
declare i32 @atoi(ptr nocapture noundef nonnull) local_unnamed_addr #7

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z9show_dataIiEvPT_m(ptr noundef, i64 noundef) local_unnamed_addr #0

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 = { 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 #2 = { nounwind "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 = { 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 = { 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 = { nobuiltin nounwind "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 = { 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 #7 = { inlinehint mustprogress nofree nounwind willreturn memory(read) 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 #8 = { nounwind }
attributes #9 = { nounwind willreturn memory(read) }
attributes #10 = { builtin allocsize(0) }
attributes #11 = { builtin 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass