; LLVM IR from eyangch/competitive-programming :: Codeforces/1325 (c)

; 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" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }

@_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 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.std::vector", align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca %"struct.std::pair", align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca i32, align 4
  %17 = alloca i32, align 4
  %18 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  %19 = 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)
  %20 = load i32, ptr %2, align 4, !tbaa !5
  %21 = zext i32 %20 to i64
  %22 = call ptr @llvm.stacksave.p0()
  store ptr %22, ptr %3, align 8
  %23 = alloca i32, i64 %21, align 16
  store i64 %21, ptr %4, align 8
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds i32, ptr %23, i64 %25
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  store i32 0, ptr %5, align 4, !tbaa !5
  call void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef %23, ptr noundef %26, ptr noundef nonnull align 4 dereferenceable(4) %5)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %27

27:                                               ; preds = %52, %0
  %28 = load i32, ptr %7, align 4, !tbaa !5
  %29 = load i32, ptr %2, align 4, !tbaa !5
  %30 = sub nsw i32 %29, 1
  %31 = icmp slt i32 %28, %30
  br i1 %31, label %33, label %32

32:                                               ; preds = %27
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  br label %64

33:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #7
  %34 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %35 unwind label %55

35:                                               ; preds = %33
  %36 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %34, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %37 unwind label %55

37:                                               ; preds = %35
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #7
  invoke void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %12, ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %38 unwind label %59

38:                                               ; preds = %37
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %6, ptr noundef nonnull align 4 dereferenceable(8) %12)
          to label %39 unwind label %59

39:                                               ; preds = %38
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #7
  %40 = load i32, ptr %8, align 4, !tbaa !5
  %41 = sub nsw i32 %40, 1
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds i32, ptr %23, i64 %42
  %44 = load i32, ptr %43, align 4, !tbaa !5
  %45 = add nsw i32 %44, 1
  store i32 %45, ptr %43, align 4, !tbaa !5
  %46 = load i32, ptr %9, align 4, !tbaa !5
  %47 = sub nsw i32 %46, 1
  %48 = sext i32 %47 to i64
  %49 = getelementptr inbounds i32, ptr %23, i64 %48
  %50 = load i32, ptr %49, align 4, !tbaa !5
  %51 = add nsw i32 %50, 1
  store i32 %51, ptr %49, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %52

52:                                               ; preds = %39
  %53 = load i32, ptr %7, align 4, !tbaa !5
  %54 = add nsw i32 %53, 1
  store i32 %54, ptr %7, align 4, !tbaa !5
  br label %27, !llvm.loop !9

55:                                               ; preds = %35, %33
  %56 = landingpad { ptr, i32 }
          cleanup
  %57 = extractvalue { ptr, i32 } %56, 0
  store ptr %57, ptr %10, align 8
  %58 = extractvalue { ptr, i32 } %56, 1
  store i32 %58, ptr %11, align 4
  br label %63

59:                                               ; preds = %38, %37
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %10, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #7
  br label %63

63:                                               ; preds = %59, %55
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  br label %138

64:                                               ; preds = %32
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #7
  store i32 0, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #7
  store i32 0, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #7
  store i32 0, ptr %15, align 4, !tbaa !5
  br label %65

65:                                               ; preds = %84, %64
  %66 = load i32, ptr %15, align 4, !tbaa !5
  %67 = load i32, ptr %2, align 4, !tbaa !5
  %68 = icmp slt i32 %66, %67
  br i1 %68, label %70, label %69

69:                                               ; preds = %65
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #7
  br label %87

70:                                               ; preds = %65
  %71 = load i32, ptr %15, align 4, !tbaa !5
  %72 = sext i32 %71 to i64
  %73 = getelementptr inbounds i32, ptr %23, i64 %72
  %74 = load i32, ptr %73, align 4, !tbaa !5
  %75 = load i32, ptr %13, align 4, !tbaa !5
  %76 = icmp sgt i32 %74, %75
  br i1 %76, label %77, label %83

77:                                               ; preds = %70
  %78 = load i32, ptr %15, align 4, !tbaa !5
  %79 = sext i32 %78 to i64
  %80 = getelementptr inbounds i32, ptr %23, i64 %79
  %81 = load i32, ptr %80, align 4, !tbaa !5
  store i32 %81, ptr %13, align 4, !tbaa !5
  %82 = load i32, ptr %15, align 4, !tbaa !5
  store i32 %82, ptr %14, align 4, !tbaa !5
  br label %83

83:                                               ; preds = %77, %70
  br label %84

84:                                               ; preds = %83
  %85 = load i32, ptr %15, align 4, !tbaa !5
  %86 = add nsw i32 %85, 1
  store i32 %86, ptr %15, align 4, !tbaa !5
  br label %65, !llvm.loop !11

87:                                               ; preds = %69
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #7
  store i32 0, ptr %16, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #7
  %88 = load i32, ptr %13, align 4, !tbaa !5
  store i32 %88, ptr %17, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %18) #7
  store i32 0, ptr %18, align 4, !tbaa !5
  br label %89

89:                                               ; preds = %132, %87
  %90 = load i32, ptr %18, align 4, !tbaa !5
  %91 = load i32, ptr %2, align 4, !tbaa !5
  %92 = sub nsw i32 %91, 1
  %93 = icmp slt i32 %90, %92
  br i1 %93, label %95, label %94

94:                                               ; preds = %89
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #7
  br label %135

95:                                               ; preds = %89
  %96 = load i32, ptr %18, align 4, !tbaa !5
  %97 = sext i32 %96 to i64
  %98 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %97) #7
  %99 = getelementptr inbounds %"struct.std::pair", ptr %98, i32 0, i32 0
  %100 = load i32, ptr %99, align 4, !tbaa !12
  %101 = sub nsw i32 %100, 1
  %102 = load i32, ptr %14, align 4, !tbaa !5
  %103 = icmp eq i32 %101, %102
  br i1 %103, label %113, label %104

104:                                              ; preds = %95
  %105 = load i32, ptr %18, align 4, !tbaa !5
  %106 = sext i32 %105 to i64
  %107 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %106) #7
  %108 = getelementptr inbounds %"struct.std::pair", ptr %107, i32 0, i32 1
  %109 = load i32, ptr %108, align 4, !tbaa !14
  %110 = sub nsw i32 %109, 1
  %111 = load i32, ptr %14, align 4, !tbaa !5
  %112 = icmp eq i32 %110, %111
  br i1 %112, label %113, label %124

113:                                              ; preds = %104, %95
  %114 = load i32, ptr %16, align 4, !tbaa !5
  %115 = add nsw i32 %114, 1
  store i32 %115, ptr %16, align 4, !tbaa !5
  %116 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %114)
          to label %117 unwind label %120

117:                                              ; preds = %113
  %118 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %116, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %119 unwind label %120

119:                                              ; preds = %117
  br label %131

120:                                              ; preds = %128, %124, %117, %113
  %121 = landingpad { ptr, i32 }
          cleanup
  %122 = extractvalue { ptr, i32 } %121, 0
  store ptr %122, ptr %10, align 8
  %123 = extractvalue { ptr, i32 } %121, 1
  store i32 %123, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  br label %138

124:                                              ; preds = %104
  %125 = load i32, ptr %17, align 4, !tbaa !5
  %126 = add nsw i32 %125, 1
  store i32 %126, ptr %17, align 4, !tbaa !5
  %127 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %125)
          to label %128 unwind label %120

128:                                              ; preds = %124
  %129 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %127, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %130 unwind label %120

130:                                              ; preds = %128
  br label %131

131:                                              ; preds = %130, %119
  br label %132

132:                                              ; preds = %131
  %133 = load i32, ptr %18, align 4, !tbaa !5
  %134 = add nsw i32 %133, 1
  store i32 %134, ptr %18, align 4, !tbaa !5
  br label %89, !llvm.loop !15

135:                                              ; preds = %94
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #7
  %136 = load ptr, ptr %3, align 8
  call void @llvm.stackrestore.p0(ptr %136)
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %137 = load i32, ptr %1, align 4
  ret i32 %137

138:                                              ; preds = %120, %63
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %139

139:                                              ; preds = %138
  %140 = load ptr, ptr %10, align 8
  %141 = load i32, ptr %11, align 4
  %142 = insertvalue { ptr, i32 } poison, ptr %140, 0
  %143 = insertvalue { ptr, i32 } %142, i32 %141, 1
  resume { ptr, i32 } %143
}

; 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
declare ptr @llvm.stacksave.p0() #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef, ptr noundef, ptr noundef nonnull align 4 dereferenceable(4)) #4

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) #6 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #5 align 2

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #6 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 nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #3

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 = { nocallback nofree nosync nounwind willreturn }
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 = { 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 = { 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 = { 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 = !{!13, !6, i64 0}
!13 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!14 = !{!13, !6, i64 4}
!15 = distinct !{!15, !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" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }

@_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 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::pair", align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #8
  %7 = 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)
  %8 = load i32, ptr %1, align 4, !tbaa !5
  %9 = zext i32 %8 to i64
  %10 = call ptr @llvm.stacksave.p0()
  %11 = alloca i32, i64 %9, align 16
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds i32, ptr %11, i64 %13
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #8
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef nonnull %11, ptr noundef nonnull %14, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #8
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #8
  %invariant.gep = getelementptr i8, ptr %11, i64 -4
  %15 = load i32, ptr %1, align 4, !tbaa !5
  %16 = icmp sgt i32 %15, 1
  br i1 %16, label %.lr.ph, label %.preheader37

.preheader37:                                     ; preds = %24, %0
  %17 = phi i32 [ %15, %0 ], [ %34, %24 ]
  %18 = icmp sgt i32 %17, 0
  br i1 %18, label %.lr.ph46.preheader, label %._crit_edge

.lr.ph46.preheader:                               ; preds = %.preheader37
  %wide.trip.count = zext nneg i32 %17 to i64
  %xtraiter = and i64 %wide.trip.count, 3
  %19 = icmp ult i32 %17, 4
  br i1 %19, label %.preheader.unr-lcssa, label %.lr.ph46.preheader.new

.lr.ph46.preheader.new:                           ; preds = %.lr.ph46.preheader
  %unroll_iter = and i64 %wide.trip.count, 2147483644
  br label %.lr.ph46

.lr.ph:                                           ; preds = %0, %24
  %.03242 = phi i32 [ %33, %24 ], [ 0, %0 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #8
  %20 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %21 unwind label %37

21:                                               ; preds = %.lr.ph
  %22 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %20, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %23 unwind label %37

23:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #8
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %6, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 4 dereferenceable(8) %6)
          to label %24 unwind label %39

24:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #8
  %25 = load i32, ptr %4, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %gep = getelementptr i32, ptr %invariant.gep, i64 %26
  %27 = load i32, ptr %gep, align 4, !tbaa !5
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %gep, align 4, !tbaa !5
  %29 = load i32, ptr %5, align 4, !tbaa !5
  %30 = sext i32 %29 to i64
  %gep41 = getelementptr i32, ptr %invariant.gep, i64 %30
  %31 = load i32, ptr %gep41, align 4, !tbaa !5
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr %gep41, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #8
  %33 = add nuw nsw i32 %.03242, 1
  %34 = load i32, ptr %1, align 4, !tbaa !5
  %35 = add nsw i32 %34, -1
  %36 = icmp slt i32 %33, %35
  br i1 %36, label %.lr.ph, label %.preheader37, !llvm.loop !9

37:                                               ; preds = %21, %.lr.ph
  %38 = landingpad { ptr, i32 }
          cleanup
  br label %41

39:                                               ; preds = %23
  %40 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #8
  br label %41

41:                                               ; preds = %39, %37
  %.pn = phi { ptr, i32 } [ %40, %39 ], [ %38, %37 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #8
  br label %89

.preheader.unr-lcssa:                             ; preds = %.lr.ph46, %.lr.ph46.preheader
  %spec.select.lcssa.ph = phi i32 [ poison, %.lr.ph46.preheader ], [ %spec.select.3, %.lr.ph46 ]
  %spec.select36.lcssa.ph = phi i32 [ poison, %.lr.ph46.preheader ], [ %spec.select36.3, %.lr.ph46 ]
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph46.preheader ], [ %indvars.iv.next.3, %.lr.ph46 ]
  %.02444.unr = phi i32 [ 0, %.lr.ph46.preheader ], [ %spec.select36.3, %.lr.ph46 ]
  %.02643.unr = phi i32 [ 0, %.lr.ph46.preheader ], [ %spec.select.3, %.lr.ph46 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.preheader, label %.lr.ph46.epil

.lr.ph46.epil:                                    ; preds = %.preheader.unr-lcssa, %.lr.ph46.epil
  %indvars.iv.epil = phi i64 [ %indvars.iv.next.epil, %.lr.ph46.epil ], [ %indvars.iv.unr, %.preheader.unr-lcssa ]
  %.02444.epil = phi i32 [ %spec.select36.epil, %.lr.ph46.epil ], [ %.02444.unr, %.preheader.unr-lcssa ]
  %.02643.epil = phi i32 [ %spec.select.epil, %.lr.ph46.epil ], [ %.02643.unr, %.preheader.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph46.epil ], [ 0, %.preheader.unr-lcssa ]
  %42 = getelementptr inbounds i32, ptr %11, i64 %indvars.iv.epil
  %43 = load i32, ptr %42, align 4, !tbaa !5
  %44 = icmp sgt i32 %43, %.02643.epil
  %spec.select.epil = call i32 @llvm.smax.i32(i32 %43, i32 %.02643.epil)
  %45 = trunc nuw nsw i64 %indvars.iv.epil to i32
  %spec.select36.epil = select i1 %44, i32 %45, i32 %.02444.epil
  %indvars.iv.next.epil = add nuw nsw i64 %indvars.iv.epil, 1
  %epil.iter.next = add i64 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i64 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %.preheader, label %.lr.ph46.epil, !llvm.loop !11

.preheader:                                       ; preds = %.lr.ph46.epil, %.preheader.unr-lcssa
  %spec.select.lcssa = phi i32 [ %spec.select.lcssa.ph, %.preheader.unr-lcssa ], [ %spec.select.epil, %.lr.ph46.epil ]
  %spec.select36.lcssa = phi i32 [ %spec.select36.lcssa.ph, %.preheader.unr-lcssa ], [ %spec.select36.epil, %.lr.ph46.epil ]
  %.not = icmp eq i32 %17, 1
  br i1 %.not, label %._crit_edge, label %.lr.ph52

.lr.ph46:                                         ; preds = %.lr.ph46, %.lr.ph46.preheader.new
  %indvars.iv = phi i64 [ 0, %.lr.ph46.preheader.new ], [ %indvars.iv.next.3, %.lr.ph46 ]
  %.02444 = phi i32 [ 0, %.lr.ph46.preheader.new ], [ %spec.select36.3, %.lr.ph46 ]
  %.02643 = phi i32 [ 0, %.lr.ph46.preheader.new ], [ %spec.select.3, %.lr.ph46 ]
  %niter = phi i64 [ 0, %.lr.ph46.preheader.new ], [ %niter.next.3, %.lr.ph46 ]
  %46 = getelementptr inbounds i32, ptr %11, i64 %indvars.iv
  %47 = load i32, ptr %46, align 16, !tbaa !5
  %48 = icmp sgt i32 %47, %.02643
  %spec.select = call i32 @llvm.smax.i32(i32 %47, i32 %.02643)
  %49 = trunc nuw nsw i64 %indvars.iv to i32
  %spec.select36 = select i1 %48, i32 %49, i32 %.02444
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %50 = getelementptr inbounds i32, ptr %11, i64 %indvars.iv.next
  %51 = load i32, ptr %50, align 4, !tbaa !5
  %52 = icmp sgt i32 %51, %spec.select
  %spec.select.1 = call i32 @llvm.smax.i32(i32 %51, i32 %spec.select)
  %53 = trunc nuw nsw i64 %indvars.iv.next to i32
  %spec.select36.1 = select i1 %52, i32 %53, i32 %spec.select36
  %indvars.iv.next.1 = or disjoint i64 %indvars.iv, 2
  %54 = getelementptr inbounds i32, ptr %11, i64 %indvars.iv.next.1
  %55 = load i32, ptr %54, align 8, !tbaa !5
  %56 = icmp sgt i32 %55, %spec.select.1
  %spec.select.2 = call i32 @llvm.smax.i32(i32 %55, i32 %spec.select.1)
  %57 = trunc nuw nsw i64 %indvars.iv.next.1 to i32
  %spec.select36.2 = select i1 %56, i32 %57, i32 %spec.select36.1
  %indvars.iv.next.2 = or disjoint i64 %indvars.iv, 3
  %58 = getelementptr inbounds i32, ptr %11, i64 %indvars.iv.next.2
  %59 = load i32, ptr %58, align 4, !tbaa !5
  %60 = icmp sgt i32 %59, %spec.select.2
  %spec.select.3 = call i32 @llvm.smax.i32(i32 %59, i32 %spec.select.2)
  %61 = trunc nuw nsw i64 %indvars.iv.next.2 to i32
  %spec.select36.3 = select i1 %60, i32 %61, i32 %spec.select36.2
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 4
  %niter.next.3 = add i64 %niter, 4
  %niter.ncmp.3 = icmp eq i64 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3, label %.preheader.unr-lcssa, label %.lr.ph46, !llvm.loop !13

._crit_edge:                                      ; preds = %84, %.preheader37, %.preheader
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #8
  call void @llvm.stackrestore.p0(ptr %10)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #8
  ret i32 0

.lr.ph52:                                         ; preds = %.preheader, %84
  %indvars.iv55 = phi i64 [ %indvars.iv.next56, %84 ], [ 0, %.preheader ]
  %.02050 = phi i32 [ %.1, %84 ], [ %spec.select.lcssa, %.preheader ]
  %.02149 = phi i32 [ %.122, %84 ], [ 0, %.preheader ]
  %62 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv55) #8
  %63 = load i32, ptr %62, align 4, !tbaa !14
  %64 = add nsw i32 %63, -1
  %65 = icmp eq i32 %64, %spec.select36.lcssa
  br i1 %65, label %72, label %66

66:                                               ; preds = %.lr.ph52
  %67 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv55) #8
  %68 = getelementptr inbounds i8, ptr %67, i64 4
  %69 = load i32, ptr %68, align 4, !tbaa !16
  %70 = add nsw i32 %69, -1
  %71 = icmp eq i32 %70, %spec.select36.lcssa
  br i1 %71, label %72, label %79

72:                                               ; preds = %66, %.lr.ph52
  %73 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.02149)
          to label %74 unwind label %77

74:                                               ; preds = %72
  %75 = add nsw i32 %.02149, 1
  %76 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %73, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %84 unwind label %77

77:                                               ; preds = %81, %79, %74, %72
  %78 = landingpad { ptr, i32 }
          cleanup
  br label %89

79:                                               ; preds = %66
  %80 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.02050)
          to label %81 unwind label %77

81:                                               ; preds = %79
  %82 = add nuw nsw i32 %.02050, 1
  %83 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %80, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %84 unwind label %77

84:                                               ; preds = %74, %81
  %.122 = phi i32 [ %75, %74 ], [ %.02149, %81 ]
  %.1 = phi i32 [ %.02050, %74 ], [ %82, %81 ]
  %indvars.iv.next56 = add nuw nsw i64 %indvars.iv55, 1
  %85 = load i32, ptr %1, align 4, !tbaa !5
  %86 = add nsw i32 %85, -1
  %87 = sext i32 %86 to i64
  %88 = icmp slt i64 %indvars.iv.next56, %87
  br i1 %88, label %.lr.ph52, label %._crit_edge, !llvm.loop !17

89:                                               ; preds = %77, %41
  %.pn.pn = phi { ptr, i32 } [ %.pn, %41 ], [ %78, %77 ]
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #8
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #8
  resume { ptr, i32 } %.pn.pn
}

; 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
declare ptr @llvm.stacksave.p0() #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef, ptr noundef, ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4

; 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 nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #6 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #5 align 2

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

; 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 #6 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 nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #3

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #7

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 = { mustprogress nocallback nofree nosync nounwind willreturn }
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 = { 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 = { 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #8 = { 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, !12}
!12 = !{!"llvm.loop.unroll.disable"}
!13 = distinct !{!13, !10}
!14 = !{!15, !6, i64 0}
!15 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!16 = !{!15, !6, i64 4}
!17 = distinct !{!17, !10}


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