; LLVM IR from VastoLorde95/Competitive-Programming :: Codeforces/86 Beta Division 1/Problem A/C.ll (Z3adjv)

; 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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

@_Z1sB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z3adjv() #1 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca i1, align 1
  %9 = alloca i1, align 1
  %10 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11) #4
  %11 = icmp ult i64 %10, 4
  br i1 %11, label %12, label %13

12:                                               ; preds = %0
  store i32 -1, ptr %1, align 4
  br label %66

13:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #4
  %14 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11) #4
  %15 = trunc i64 %14 to i32
  store i32 %15, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #4
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = sub nsw i32 %16, 4
  %18 = sext i32 %17 to i64
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %3, ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %18, i64 noundef 4)
  %19 = invoke noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef @.str)
          to label %20 unwind label %27

20:                                               ; preds = %13
  br i1 %19, label %24, label %21

21:                                               ; preds = %20
  %22 = invoke noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, ptr noundef @.str)
          to label %23 unwind label %27

23:                                               ; preds = %21
  br label %24

24:                                               ; preds = %23, %20
  %25 = phi i1 [ true, %20 ], [ %22, %23 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #4
  br i1 %25, label %26, label %31

26:                                               ; preds = %24
  store i32 1, ptr %1, align 4
  store i32 1, ptr %6, align 4
  br label %64

27:                                               ; preds = %21, %13
  %28 = landingpad { ptr, i32 }
          cleanup
  %29 = extractvalue { ptr, i32 } %28, 0
  store ptr %29, ptr %4, align 8
  %30 = extractvalue { ptr, i32 } %28, 1
  store i32 %30, ptr %5, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #4
  br label %65

31:                                               ; preds = %24
  %32 = load i32, ptr %2, align 4, !tbaa !5
  %33 = icmp sge i32 %32, 5
  store i1 false, ptr %8, align 1
  store i1 false, ptr %9, align 1
  br i1 %33, label %34, label %40

34:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 32, ptr %7) #4
  store i1 true, ptr %8, align 1
  %35 = load i32, ptr %2, align 4, !tbaa !5
  %36 = sub nsw i32 %35, 5
  %37 = sext i32 %36 to i64
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %7, ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %37, i64 noundef 5)
  store i1 true, ptr %9, align 1
  %38 = invoke noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef @.str.2)
          to label %39 unwind label %52

39:                                               ; preds = %34
  br i1 %38, label %43, label %40

40:                                               ; preds = %39, %31
  %41 = invoke noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, ptr noundef @.str.2)
          to label %42 unwind label %52

42:                                               ; preds = %40
  br label %43

43:                                               ; preds = %42, %39
  %44 = phi i1 [ true, %39 ], [ %41, %42 ]
  %45 = load i1, ptr %9, align 1
  br i1 %45, label %46, label %47

46:                                               ; preds = %43
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #4
  br label %47

47:                                               ; preds = %46, %43
  %48 = load i1, ptr %8, align 1
  br i1 %48, label %49, label %50

49:                                               ; preds = %47
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #4
  br label %50

50:                                               ; preds = %49, %47
  br i1 %44, label %51, label %62

51:                                               ; preds = %50
  store i32 2, ptr %1, align 4
  store i32 1, ptr %6, align 4
  br label %64

52:                                               ; preds = %40, %34
  %53 = landingpad { ptr, i32 }
          cleanup
  %54 = extractvalue { ptr, i32 } %53, 0
  store ptr %54, ptr %4, align 8
  %55 = extractvalue { ptr, i32 } %53, 1
  store i32 %55, ptr %5, align 4
  %56 = load i1, ptr %9, align 1
  br i1 %56, label %57, label %58

57:                                               ; preds = %52
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #4
  br label %58

58:                                               ; preds = %57, %52
  %59 = load i1, ptr %8, align 1
  br i1 %59, label %60, label %61

60:                                               ; preds = %58
  call void @llvm.lifetime.end.p0(i64 32, ptr %7) #4
  br label %61

61:                                               ; preds = %60, %58
  br label %65

62:                                               ; preds = %50
  br label %63

63:                                               ; preds = %62
  store i32 -1, ptr %1, align 4
  store i32 1, ptr %6, align 4
  br label %64

64:                                               ; preds = %63, %51, %26
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  br label %66

65:                                               ; preds = %61, %27
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  br label %68

66:                                               ; preds = %64, %12
  %67 = load i32, ptr %1, align 4
  ret i32 %67

68:                                               ; preds = %65
  %69 = load ptr, ptr %4, align 8
  %70 = load i32, ptr %5, align 4
  %71 = insertvalue { ptr, i32 } poison, ptr %69, 0
  %72 = insertvalue { ptr, i32 } %71, i32 %70, 1
  resume { ptr, i32 } %72
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #3

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

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 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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"}


; 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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

@_Z1sB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef range(i32 -1, 3) i32 @_Z3adjv() local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11) #4
  %4 = icmp ult i64 %3, 4
  br i1 %4, label %24, label %5

5:                                                ; preds = %0
  %6 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11) #4
  %7 = trunc i64 %6 to i32
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #4
  %8 = shl i64 %6, 32
  %sext = add i64 %8, -17179869184
  %9 = ashr exact i64 %sext, 32
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %1, ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %9, i64 noundef 4)
  %10 = call noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull @.str)
  br i1 %10, label %.critedge, label %11

11:                                               ; preds = %5
  %12 = call noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, ptr noundef nonnull @.str)
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #4
  br i1 %12, label %24, label %13

.critedge:                                        ; preds = %5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #4
  br label %24

13:                                               ; preds = %11
  %14 = icmp sgt i32 %7, 4
  br i1 %14, label %15, label %20

15:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #4
  %16 = add i64 %6, 4294967291
  %17 = and i64 %16, 4294967295
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %2, ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, i64 noundef %17, i64 noundef 5)
  %18 = call noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull @.str.2)
  br i1 %18, label %.thread, label %.thread13

.thread13:                                        ; preds = %15
  %19 = call noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, ptr noundef nonnull @.str.2)
  br label %.thread

20:                                               ; preds = %13
  %21 = call noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32) @_Z1sB5cxx11, ptr noundef nonnull @.str.2)
  br label %.critedge11

.thread:                                          ; preds = %15, %.thread13
  %22 = phi i1 [ %19, %.thread13 ], [ true, %15 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #4
  br label %.critedge11

.critedge11:                                      ; preds = %20, %.thread
  %23 = phi i1 [ %21, %20 ], [ %22, %.thread ]
  %. = select i1 %23, i32 2, i32 -1
  br label %24

24:                                               ; preds = %.critedge, %11, %.critedge11, %0
  %.18 = phi i32 [ -1, %0 ], [ 1, %.critedge ], [ 1, %11 ], [ %., %.critedge11 ]
  ret i32 %.18
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIcSt11char_traitsIcESaIcEEbRKNSt7__cxx1112basic_stringIT_T0_T1_EEPKS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) local_unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

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 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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)"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass