; LLVM IR from eyangch/competitive-programming :: USACOcontests/silver/2020.01 (loan)

; 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" }

@N = external dso_local global i64, align 8
@K = external dso_local global i64, align 8
@M = external dso_local global i64, align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [8 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@stdin = external global ptr, align 8
@.str.2 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1
@stdout = external global ptr, align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z5worksx(i64 noundef) #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i8, align 1
  %6 = alloca i8, align 1
  %7 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %8 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %9 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %10 = getelementptr i8, ptr %9, i64 -24
  %11 = load i64, ptr %10, align 8
  %12 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %11
  %13 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %12, ptr noundef null)
  %14 = load ptr, ptr @stdin, align 8, !tbaa !8
  %15 = call ptr @freopen(ptr noundef @.str, ptr noundef @.str.1, ptr noundef %14)
  %16 = load ptr, ptr @stdout, align 8, !tbaa !8
  %17 = call ptr @freopen(ptr noundef @.str.2, ptr noundef @.str.3, ptr noundef %16)
  %18 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @N)
  %19 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %18, ptr noundef nonnull align 8 dereferenceable(8) @K)
  %20 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %19, ptr noundef nonnull align 8 dereferenceable(8) @M)
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  store i64 1, ptr %2, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  store i64 1000000000000, ptr %3, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  br label %21

21:                                               ; preds = %56, %0
  %22 = load i64, ptr %2, align 8, !tbaa !11
  %23 = load i64, ptr %3, align 8, !tbaa !11
  %24 = icmp slt i64 %22, %23
  br i1 %24, label %25, label %57

25:                                               ; preds = %21
  %26 = load i64, ptr %2, align 8, !tbaa !11
  %27 = load i64, ptr %3, align 8, !tbaa !11
  %28 = add nsw i64 %26, %27
  %29 = sdiv i64 %28, 2
  store i64 %29, ptr %4, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #6
  %30 = load i64, ptr %4, align 8, !tbaa !11
  %31 = call noundef zeroext i1 @_Z5worksx(i64 noundef %30)
  %32 = zext i1 %31 to i8
  store i8 %32, ptr %5, align 1, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #6
  %33 = load i64, ptr %4, align 8, !tbaa !11
  %34 = add nsw i64 %33, 1
  %35 = call noundef zeroext i1 @_Z5worksx(i64 noundef %34)
  %36 = zext i1 %35 to i8
  store i8 %36, ptr %6, align 1, !tbaa !13
  %37 = load i8, ptr %5, align 1, !tbaa !13, !range !15, !noundef !16
  %38 = trunc i8 %37 to i1
  br i1 %38, label %39, label %43

39:                                               ; preds = %25
  %40 = load i8, ptr %6, align 1, !tbaa !13, !range !15, !noundef !16
  %41 = trunc i8 %40 to i1
  br i1 %41, label %43, label %42

42:                                               ; preds = %39
  store i32 3, ptr %7, align 4
  br label %54

43:                                               ; preds = %39, %25
  %44 = load i8, ptr %5, align 1, !tbaa !13, !range !15, !noundef !16
  %45 = trunc i8 %44 to i1
  br i1 %45, label %46, label %49

46:                                               ; preds = %43
  %47 = load i64, ptr %4, align 8, !tbaa !11
  %48 = add nsw i64 %47, 1
  store i64 %48, ptr %2, align 8, !tbaa !11
  br label %52

49:                                               ; preds = %43
  %50 = load i64, ptr %4, align 8, !tbaa !11
  %51 = sub nsw i64 %50, 1
  store i64 %51, ptr %3, align 8, !tbaa !11
  br label %52

52:                                               ; preds = %49, %46
  br label %53

53:                                               ; preds = %52
  store i32 0, ptr %7, align 4
  br label %54

54:                                               ; preds = %53, %42
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  %55 = load i32, ptr %7, align 4
  switch i32 %55, label %82 [
    i32 0, label %56
    i32 3, label %57
  ]

56:                                               ; preds = %54
  br label %21, !llvm.loop !17

57:                                               ; preds = %54, %21
  br label %58

58:                                               ; preds = %61, %57
  %59 = load i64, ptr %4, align 8, !tbaa !11
  %60 = call noundef zeroext i1 @_Z5worksx(i64 noundef %59)
  br i1 %60, label %61, label %64

61:                                               ; preds = %58
  %62 = load i64, ptr %4, align 8, !tbaa !11
  %63 = add nsw i64 %62, 1
  store i64 %63, ptr %4, align 8, !tbaa !11
  br label %58, !llvm.loop !19

64:                                               ; preds = %58
  br label %65

65:                                               ; preds = %74, %64
  %66 = load i64, ptr %4, align 8, !tbaa !11
  %67 = icmp sgt i64 %66, 0
  br i1 %67, label %68, label %72

68:                                               ; preds = %65
  %69 = load i64, ptr %4, align 8, !tbaa !11
  %70 = call noundef zeroext i1 @_Z5worksx(i64 noundef %69)
  %71 = xor i1 %70, true
  br label %72

72:                                               ; preds = %68, %65
  %73 = phi i1 [ false, %65 ], [ %71, %68 ]
  br i1 %73, label %74, label %77

74:                                               ; preds = %72
  %75 = load i64, ptr %4, align 8, !tbaa !11
  %76 = add nsw i64 %75, -1
  store i64 %76, ptr %4, align 8, !tbaa !11
  br label %65, !llvm.loop !20

77:                                               ; preds = %72
  %78 = load i64, ptr %4, align 8, !tbaa !11
  %79 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %78)
  %80 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %79, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  %81 = load i32, ptr %1, align 4
  ret i32 %81

82:                                               ; preds = %54
  unreachable
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #3

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #0 align 2

declare ptr @freopen(ptr noundef, ptr noundef, ptr noundef) #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #4 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #4 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #4 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)) #5

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "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 = { 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 = { 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 #6 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"any pointer", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long long", !10, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"bool", !10, i64 0}
!15 = !{i8 0, i8 2}
!16 = !{}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}
!19 = distinct !{!19, !18}
!20 = distinct !{!20, !18}


; 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" }

@N = external dso_local global i64, align 8
@K = external dso_local global i64, align 8
@M = external dso_local global i64, align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str = external hidden unnamed_addr constant [8 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@stdin = external local_unnamed_addr global ptr, align 8
@.str.2 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1
@stdout = external local_unnamed_addr global ptr, align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z5worksx(i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 {
  %1 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %2 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %3 = getelementptr i8, ptr %2, i64 -24
  %4 = load i64, ptr %3, align 8
  %5 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %4
  %6 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %5, ptr noundef null)
  %7 = load ptr, ptr @stdin, align 8, !tbaa !8
  %8 = tail call ptr @freopen(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, ptr noundef %7)
  %9 = load ptr, ptr @stdout, align 8, !tbaa !8
  %10 = tail call ptr @freopen(ptr noundef nonnull @.str.2, ptr noundef nonnull @.str.3, ptr noundef %9)
  %11 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @N)
  %12 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %11, ptr noundef nonnull align 8 dereferenceable(8) @K)
  %13 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %12, ptr noundef nonnull align 8 dereferenceable(8) @M)
  br label %17

14:                                               ; preds = %17
  %.1 = select i1 %20, i64 %21, i64 %.01927
  %15 = add nsw i64 %19, -1
  %.124 = select i1 %20, i64 %.02326, i64 %15
  %16 = icmp slt i64 %.1, %.124
  br i1 %16, label %17, label %.preheader31

17:                                               ; preds = %0, %14
  %.01927 = phi i64 [ 1, %0 ], [ %.1, %14 ]
  %.02326 = phi i64 [ 1000000000000, %0 ], [ %.124, %14 ]
  %18 = add nsw i64 %.01927, %.02326
  %19 = sdiv i64 %18, 2
  %20 = tail call noundef zeroext i1 @_Z5worksx(i64 noundef %19)
  %21 = add nsw i64 %19, 1
  %22 = tail call noundef zeroext i1 @_Z5worksx(i64 noundef %21)
  %.not = xor i1 %20, true
  %brmerge = or i1 %22, %.not
  br i1 %brmerge, label %14, label %.preheader31

.preheader31:                                     ; preds = %17, %14
  br label %23

23:                                               ; preds = %.preheader31, %23
  %.222 = phi i64 [ %25, %23 ], [ %19, %.preheader31 ]
  %24 = tail call noundef zeroext i1 @_Z5worksx(i64 noundef %.222)
  %25 = add nsw i64 %.222, 1
  br i1 %24, label %23, label %.preheader, !llvm.loop !11

.preheader:                                       ; preds = %23
  %26 = icmp sgt i64 %.222, 0
  br i1 %26, label %.lr.ph, label %.critedge

.lr.ph:                                           ; preds = %.preheader, %28
  %.328 = phi i64 [ %29, %28 ], [ %.222, %.preheader ]
  %27 = tail call noundef zeroext i1 @_Z5worksx(i64 noundef %.328)
  br i1 %27, label %.critedge, label %28

28:                                               ; preds = %.lr.ph
  %29 = add nsw i64 %.328, -1
  %30 = icmp sgt i64 %.328, 1
  br i1 %30, label %.lr.ph, label %.critedge, !llvm.loop !13

.critedge:                                        ; preds = %.lr.ph, %28, %.preheader
  %.3.lcssa = phi i64 [ %.222, %.preheader ], [ 0, %28 ], [ %.328, %.lr.ph ]
  %31 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %.3.lcssa)
  %32 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %31, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret i32 0
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #0 align 2

declare ptr @freopen(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #3 align 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 #3 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

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 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 #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 uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }

!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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"any pointer", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


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