; LLVM IR from bhrigukansra/algorithms-in-C-Cplusplus-Java-Python-JavaScript :: Data Structures/Stack/C++ (infixCalculator)

; 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::stack.1" = type { %"class.std::deque.2" }
%"class.std::deque.2" = type { %"class.std::_Deque_base.3" }
%"class.std::_Deque_base.3" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator.7", %"struct.std::_Deque_iterator.7" }
%"struct.std::_Deque_iterator.7" = type { ptr, ptr, ptr, ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind willreturn memory(read)
declare i32 @isdigit(i32 noundef) #1

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z11postfixEvalNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0) #3 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.std::stack.1", align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 80, ptr %3) #5
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %14

14:                                               ; preds = %111, %1
  %15 = load i32, ptr %4, align 4, !tbaa !9
  %16 = sext i32 %15 to i64
  %17 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %16)
          to label %18 unwind label %22

18:                                               ; preds = %14
  %19 = load i8, ptr %17, align 1, !tbaa !11
  %20 = icmp ne i8 %19, 0
  br i1 %20, label %26, label %21

21:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %115

22:                                               ; preds = %26, %14
  %23 = landingpad { ptr, i32 }
          cleanup
  %24 = extractvalue { ptr, i32 } %23, 0
  store ptr %24, ptr %5, align 8
  %25 = extractvalue { ptr, i32 } %23, 1
  store i32 %25, ptr %6, align 4
  br label %114

26:                                               ; preds = %18
  %27 = load i32, ptr %4, align 4, !tbaa !9
  %28 = sext i32 %27 to i64
  %29 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %28)
          to label %30 unwind label %22

30:                                               ; preds = %26
  %31 = load i8, ptr %29, align 1, !tbaa !11
  %32 = sext i8 %31 to i32
  %33 = call i32 @isdigit(i32 noundef %32) #6
  %34 = icmp ne i32 %33, 0
  br i1 %34, label %35, label %48

35:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  %36 = load i32, ptr %4, align 4, !tbaa !9
  %37 = sext i32 %36 to i64
  %38 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %37)
          to label %39 unwind label %44

39:                                               ; preds = %35
  %40 = load i8, ptr %38, align 1, !tbaa !11
  %41 = sext i8 %40 to i32
  %42 = sub nsw i32 %41, 48
  store i32 %42, ptr %7, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %7)
          to label %43 unwind label %44

43:                                               ; preds = %39
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %110

44:                                               ; preds = %39, %35
  %45 = landingpad { ptr, i32 }
          cleanup
  %46 = extractvalue { ptr, i32 } %45, 0
  store ptr %46, ptr %5, align 8
  %47 = extractvalue { ptr, i32 } %45, 1
  store i32 %47, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %114

48:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  %49 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %50 unwind label %63

50:                                               ; preds = %48
  %51 = load i32, ptr %49, align 4, !tbaa !9
  store i32 %51, ptr %8, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %52 unwind label %63

52:                                               ; preds = %50
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  %53 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %54 unwind label %67

54:                                               ; preds = %52
  %55 = load i32, ptr %53, align 4, !tbaa !9
  store i32 %55, ptr %9, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %56 unwind label %67

56:                                               ; preds = %54
  %57 = load i32, ptr %4, align 4, !tbaa !9
  %58 = sext i32 %57 to i64
  %59 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %58)
          to label %60 unwind label %67

60:                                               ; preds = %56
  %61 = load i8, ptr %59, align 1, !tbaa !11
  %62 = sext i8 %61 to i32
  switch i32 %62, label %107 [
    i32 43, label %71
    i32 45, label %80
    i32 42, label %89
    i32 47, label %98
  ]

63:                                               ; preds = %50, %48
  %64 = landingpad { ptr, i32 }
          cleanup
  %65 = extractvalue { ptr, i32 } %64, 0
  store ptr %65, ptr %5, align 8
  %66 = extractvalue { ptr, i32 } %64, 1
  store i32 %66, ptr %6, align 4
  br label %109

67:                                               ; preds = %56, %54, %52
  %68 = landingpad { ptr, i32 }
          cleanup
  %69 = extractvalue { ptr, i32 } %68, 0
  store ptr %69, ptr %5, align 8
  %70 = extractvalue { ptr, i32 } %68, 1
  store i32 %70, ptr %6, align 4
  br label %108

71:                                               ; preds = %60
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  %72 = load i32, ptr %9, align 4, !tbaa !9
  %73 = load i32, ptr %8, align 4, !tbaa !9
  %74 = add nsw i32 %72, %73
  store i32 %74, ptr %10, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %10)
          to label %75 unwind label %76

75:                                               ; preds = %71
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %107

76:                                               ; preds = %71
  %77 = landingpad { ptr, i32 }
          cleanup
  %78 = extractvalue { ptr, i32 } %77, 0
  store ptr %78, ptr %5, align 8
  %79 = extractvalue { ptr, i32 } %77, 1
  store i32 %79, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %108

80:                                               ; preds = %60
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #5
  %81 = load i32, ptr %9, align 4, !tbaa !9
  %82 = load i32, ptr %8, align 4, !tbaa !9
  %83 = sub nsw i32 %81, %82
  store i32 %83, ptr %11, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %11)
          to label %84 unwind label %85

84:                                               ; preds = %80
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  br label %107

85:                                               ; preds = %80
  %86 = landingpad { ptr, i32 }
          cleanup
  %87 = extractvalue { ptr, i32 } %86, 0
  store ptr %87, ptr %5, align 8
  %88 = extractvalue { ptr, i32 } %86, 1
  store i32 %88, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  br label %108

89:                                               ; preds = %60
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #5
  %90 = load i32, ptr %9, align 4, !tbaa !9
  %91 = load i32, ptr %8, align 4, !tbaa !9
  %92 = mul nsw i32 %90, %91
  store i32 %92, ptr %12, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %12)
          to label %93 unwind label %94

93:                                               ; preds = %89
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #5
  br label %107

94:                                               ; preds = %89
  %95 = landingpad { ptr, i32 }
          cleanup
  %96 = extractvalue { ptr, i32 } %95, 0
  store ptr %96, ptr %5, align 8
  %97 = extractvalue { ptr, i32 } %95, 1
  store i32 %97, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #5
  br label %108

98:                                               ; preds = %60
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #5
  %99 = load i32, ptr %9, align 4, !tbaa !9
  %100 = load i32, ptr %8, align 4, !tbaa !9
  %101 = sdiv i32 %99, %100
  store i32 %101, ptr %13, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %102 unwind label %103

102:                                              ; preds = %98
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #5
  br label %107

103:                                              ; preds = %98
  %104 = landingpad { ptr, i32 }
          cleanup
  %105 = extractvalue { ptr, i32 } %104, 0
  store ptr %105, ptr %5, align 8
  %106 = extractvalue { ptr, i32 } %104, 1
  store i32 %106, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #5
  br label %108

107:                                              ; preds = %102, %93, %84, %75, %60
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  br label %110

108:                                              ; preds = %103, %94, %85, %76, %67
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  br label %109

109:                                              ; preds = %108, %63
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  br label %114

110:                                              ; preds = %107, %43
  br label %111

111:                                              ; preds = %110
  %112 = load i32, ptr %4, align 4, !tbaa !9
  %113 = add nsw i32 %112, 1
  store i32 %113, ptr %4, align 4, !tbaa !9
  br label %14, !llvm.loop !12

114:                                              ; preds = %109, %44, %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %123

115:                                              ; preds = %21
  %116 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %117 unwind label %119

117:                                              ; preds = %115
  %118 = load i32, ptr %116, align 4, !tbaa !9
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #5
  ret i32 %118

119:                                              ; preds = %115
  %120 = landingpad { ptr, i32 }
          cleanup
  %121 = extractvalue { ptr, i32 } %120, 0
  store ptr %121, ptr %5, align 8
  %122 = extractvalue { ptr, i32 } %120, 1
  store i32 %122, ptr %6, align 4
  br label %123

123:                                              ; preds = %119, %114
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #5
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #5
  br label %124

124:                                              ; preds = %123
  %125 = load ptr, ptr %5, align 8
  %126 = load i32, ptr %6, align 4
  %127 = insertvalue { ptr, i32 } poison, ptr %125, 0
  %128 = insertvalue { ptr, i32 } %127, i32 %126, 1
  resume { ptr, i32 } %128
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(4)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #4 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind willreturn memory(read) "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 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 #3 = { 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 }
attributes #6 = { nounwind willreturn memory(read) }

!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 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


; 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::stack.1" = type { %"class.std::deque.2" }
%"class.std::deque.2" = type { %"class.std::_Deque_base.3" }
%"class.std::_Deque_base.3" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator.7", %"struct.std::_Deque_iterator.7" }
%"struct.std::_Deque_iterator.7" = type { ptr, ptr, ptr, ptr }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z11postfixEvalNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::stack.1", align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %2) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %8 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef 0)
  %9 = load i8, ptr %8, align 1, !tbaa !5
  %.not20 = icmp eq i8 %9, 0
  br i1 %.not20, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %50, %1
  %10 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %11 = load i32, ptr %10, align 4, !tbaa !8
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #4
  ret i32 %11

.lr.ph:                                           ; preds = %1, %50
  %indvars.iv = phi i64 [ %indvars.iv.next, %50 ], [ 0, %1 ]
  %12 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %13 = load i8, ptr %12, align 1, !tbaa !5
  %14 = sext i8 %13 to i32
  %isdigittmp = add nsw i32 %14, -48
  %isdigit = icmp ult i32 %isdigittmp, 10
  br i1 %isdigit, label %15, label %23

15:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  %16 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %17 = load i8, ptr %16, align 1, !tbaa !5
  %18 = sext i8 %17 to i32
  %19 = add nsw i32 %18, -48
  store i32 %19, ptr %3, align 4, !tbaa !8
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %20 unwind label %21

20:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  br label %50

21:                                               ; preds = %15
  %22 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  br label %53

23:                                               ; preds = %.lr.ph
  %24 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %25 = load i32, ptr %24, align 4, !tbaa !8
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %26 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %27 = load i32, ptr %26, align 4, !tbaa !8
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %28 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %29 = load i8, ptr %28, align 1, !tbaa !5
  switch i8 %29, label %50 [
    i8 43, label %30
    i8 45, label %35
    i8 42, label %40
    i8 47, label %45
  ]

30:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  %31 = add nsw i32 %27, %25
  store i32 %31, ptr %4, align 4, !tbaa !8
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %32 unwind label %33

32:                                               ; preds = %30
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  br label %50

33:                                               ; preds = %30
  %34 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  br label %53

35:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #4
  %36 = sub nsw i32 %27, %25
  store i32 %36, ptr %5, align 4, !tbaa !8
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %37 unwind label %38

37:                                               ; preds = %35
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #4
  br label %50

38:                                               ; preds = %35
  %39 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #4
  br label %53

40:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #4
  %41 = mul nsw i32 %27, %25
  store i32 %41, ptr %6, align 4, !tbaa !8
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %42 unwind label %43

42:                                               ; preds = %40
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  br label %50

43:                                               ; preds = %40
  %44 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  br label %53

45:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #4
  %46 = sdiv i32 %27, %25
  store i32 %46, ptr %7, align 4, !tbaa !8
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %7)
          to label %47 unwind label %48

47:                                               ; preds = %45
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  br label %50

48:                                               ; preds = %45
  %49 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  br label %53

50:                                               ; preds = %23, %32, %37, %42, %47, %20
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %51 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv.next)
  %52 = load i8, ptr %51, align 1, !tbaa !5
  %.not = icmp eq i8 %52, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !10

53:                                               ; preds = %33, %38, %43, %48, %21
  %.pn18 = phi { ptr, i32 } [ %22, %21 ], [ %49, %48 ], [ %44, %43 ], [ %39, %38 ], [ %34, %33 ]
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #4
  resume { ptr, i32 } %.pn18
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


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