; LLVM IR from manishbisht/Competitive-Programming :: Codechef/COOK72 (Chef and Proportion)

; 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" }

@b = external dso_local global [4 x double], align 16
@i = external dso_local global i32, align 4
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [11 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  store i32 0, ptr @i, align 4, !tbaa !5
  br label %2

2:                                                ; preds = %10, %0
  %3 = load i32, ptr @i, align 4, !tbaa !5
  %4 = icmp slt i32 %3, 4
  br i1 %4, label %5, label %13

5:                                                ; preds = %2
  %6 = load i32, ptr @i, align 4, !tbaa !5
  %7 = sext i32 %6 to i64
  %8 = getelementptr inbounds [4 x double], ptr @b, i64 0, i64 %7
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERd(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %8)
  br label %10

10:                                               ; preds = %5
  %11 = load i32, ptr @i, align 4, !tbaa !5
  %12 = add nsw i32 %11, 1
  store i32 %12, ptr @i, align 4, !tbaa !5
  br label %2, !llvm.loop !9

13:                                               ; preds = %2
  %14 = load double, ptr @b, align 16, !tbaa !11
  %15 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 2), align 16, !tbaa !11
  %16 = fdiv double %14, %15
  %17 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 1), align 8, !tbaa !11
  %18 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 3), align 8, !tbaa !11
  %19 = fdiv double %17, %18
  %20 = fcmp oeq double %16, %19
  br i1 %20, label %21, label %24

21:                                               ; preds = %13
  %22 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %22, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %111

24:                                               ; preds = %13
  %25 = load double, ptr @b, align 16, !tbaa !11
  %26 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 2), align 16, !tbaa !11
  %27 = fdiv double %25, %26
  %28 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 3), align 8, !tbaa !11
  %29 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 1), align 8, !tbaa !11
  %30 = fdiv double %28, %29
  %31 = fcmp oeq double %27, %30
  br i1 %31, label %32, label %35

32:                                               ; preds = %24
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %34 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %33, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %110

35:                                               ; preds = %24
  %36 = load double, ptr @b, align 16, !tbaa !11
  %37 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 3), align 8, !tbaa !11
  %38 = fdiv double %36, %37
  %39 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 1), align 8, !tbaa !11
  %40 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 2), align 16, !tbaa !11
  %41 = fdiv double %39, %40
  %42 = fcmp oeq double %38, %41
  br i1 %42, label %43, label %46

43:                                               ; preds = %35
  %44 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %44, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %109

46:                                               ; preds = %35
  %47 = load double, ptr @b, align 16, !tbaa !11
  %48 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 3), align 8, !tbaa !11
  %49 = fdiv double %47, %48
  %50 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 3), align 8, !tbaa !11
  %51 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 1), align 8, !tbaa !11
  %52 = fdiv double %50, %51
  %53 = fcmp oeq double %49, %52
  br i1 %53, label %54, label %57

54:                                               ; preds = %46
  %55 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %55, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %108

57:                                               ; preds = %46
  %58 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 2), align 16, !tbaa !11
  %59 = load double, ptr @b, align 16, !tbaa !11
  %60 = fdiv double %58, %59
  %61 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 1), align 8, !tbaa !11
  %62 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 3), align 8, !tbaa !11
  %63 = fdiv double %61, %62
  %64 = fcmp oeq double %60, %63
  br i1 %64, label %65, label %68

65:                                               ; preds = %57
  %66 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %67 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %66, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %107

68:                                               ; preds = %57
  %69 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 2), align 16, !tbaa !11
  %70 = load double, ptr @b, align 16, !tbaa !11
  %71 = fdiv double %69, %70
  %72 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 3), align 8, !tbaa !11
  %73 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 1), align 8, !tbaa !11
  %74 = fdiv double %72, %73
  %75 = fcmp oeq double %71, %74
  br i1 %75, label %76, label %79

76:                                               ; preds = %68
  %77 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %78 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %77, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %106

79:                                               ; preds = %68
  %80 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 3), align 8, !tbaa !11
  %81 = load double, ptr @b, align 16, !tbaa !11
  %82 = fdiv double %80, %81
  %83 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 1), align 8, !tbaa !11
  %84 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 2), align 16, !tbaa !11
  %85 = fdiv double %83, %84
  %86 = fcmp oeq double %82, %85
  br i1 %86, label %87, label %90

87:                                               ; preds = %79
  %88 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %89 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %88, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %105

90:                                               ; preds = %79
  %91 = load double, ptr @b, align 16, !tbaa !11
  %92 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 3), align 8, !tbaa !11
  %93 = fdiv double %91, %92
  %94 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 3), align 8, !tbaa !11
  %95 = load double, ptr getelementptr inbounds ([4 x double], ptr @b, i64 0, i64 1), align 8, !tbaa !11
  %96 = fdiv double %94, %95
  %97 = fcmp oeq double %93, %96
  br i1 %97, label %98, label %101

98:                                               ; preds = %90
  %99 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %100 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %99, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %104

101:                                              ; preds = %90
  %102 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
  %103 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %102, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %104

104:                                              ; preds = %101, %98
  br label %105

105:                                              ; preds = %104, %87
  br label %106

106:                                              ; preds = %105, %76
  br label %107

107:                                              ; preds = %106, %65
  br label %108

108:                                              ; preds = %107, %54
  br label %109

109:                                              ; preds = %108, %43
  br label %110

110:                                              ; preds = %109, %32
  br label %111

111:                                              ; preds = %110, %21
  ret i32 0
}

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERd(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; 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) #2

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

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 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 = { 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" }

!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 = !{!12, !12, i64 0}
!12 = !{!"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_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" }

@b = external dso_local global [4 x double], align 16
@i = external dso_local local_unnamed_addr global i32, align 4
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [11 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  store i32 0, ptr @i, align 4, !tbaa !5
  br label %1

1:                                                ; preds = %0, %1
  %storemerge7 = phi i32 [ 0, %0 ], [ %6, %1 ]
  %2 = sext i32 %storemerge7 to i64
  %3 = getelementptr inbounds [4 x double], ptr @b, i64 0, i64 %2
  %4 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERd(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %5 = load i32, ptr @i, align 4, !tbaa !5
  %6 = add nsw i32 %5, 1
  store i32 %6, ptr @i, align 4, !tbaa !5
  %7 = icmp slt i32 %5, 3
  br i1 %7, label %1, label %8, !llvm.loop !9

8:                                                ; preds = %1
  %9 = load <2 x double>, ptr @b, align 16, !tbaa !11
  %10 = load <2 x double>, ptr getelementptr inbounds (i8, ptr @b, i64 16), align 16, !tbaa !11
  %11 = shufflevector <2 x double> %10, <2 x double> poison, <2 x i32> <i32 1, i32 0>
  %12 = fdiv <2 x double> %9, %10
  %13 = extractelement <2 x double> %12, i64 0
  %14 = extractelement <2 x double> %12, i64 1
  %15 = fcmp oeq double %13, %14
  br i1 %15, label %36, label %16

16:                                               ; preds = %8
  %17 = extractelement <2 x double> %9, i64 1
  %18 = extractelement <2 x double> %10, i64 1
  %19 = fdiv double %18, %17
  %20 = fcmp oeq double %13, %19
  br i1 %20, label %36, label %21

21:                                               ; preds = %16
  %22 = fdiv <2 x double> %9, %11
  %23 = extractelement <2 x double> %22, i64 0
  %24 = extractelement <2 x double> %22, i64 1
  %25 = fcmp oeq double %23, %24
  %26 = fcmp oeq double %23, %19
  %or.cond = or i1 %25, %26
  br i1 %or.cond, label %36, label %27

27:                                               ; preds = %21
  %28 = extractelement <2 x double> %9, i64 0
  %29 = extractelement <2 x double> %10, i64 0
  %30 = fdiv double %29, %28
  %31 = fcmp oeq double %30, %14
  %32 = fcmp oeq double %30, %19
  %or.cond8 = or i1 %31, %32
  br i1 %or.cond8, label %36, label %33

33:                                               ; preds = %27
  %34 = fdiv double %18, %28
  %35 = fcmp oeq double %34, %24
  %.str..str.1 = select i1 %35, ptr @.str, ptr @.str.1
  br label %36

36:                                               ; preds = %33, %27, %21, %16, %8
  %.str.sink = phi ptr [ @.str, %8 ], [ @.str, %16 ], [ @.str, %21 ], [ @.str, %27 ], [ %.str..str.1, %33 ]
  %37 = 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.sink)
  %38 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %37, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret i32 0
}

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERd(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; 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 #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 #1 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)) #2

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 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 = { 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" }

!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 = !{!12, !12, i64 0}
!12 = !{!"double", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,LoopRotatePass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass