; LLVM IR from ritikbanger/Hacktoberfest2022-DSA :: 01. Mathematics (relace arr[i] by arr[arr[i]])

; 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" }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  %10 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %11 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %12 = getelementptr i8, ptr %11, i64 -24
  %13 = load i64, ptr %12, align 8
  %14 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %13
  %15 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %14, ptr noundef null)
  %16 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %17 = getelementptr i8, ptr %16, i64 -24
  %18 = load i64, ptr %17, align 8
  %19 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %18
  %20 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %19, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #7
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  %22 = load i64, ptr %2, align 8, !tbaa !8
  %23 = call ptr @llvm.stacksave.p0()
  store ptr %23, ptr %3, align 8
  %24 = alloca i32, i64 %22, align 16
  store i64 %22, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #7
  store i64 0, ptr %5, align 8, !tbaa !8
  br label %25

25:                                               ; preds = %34, %0
  %26 = load i64, ptr %5, align 8, !tbaa !8
  %27 = load i64, ptr %2, align 8, !tbaa !8
  %28 = icmp slt i64 %26, %27
  br i1 %28, label %30, label %29

29:                                               ; preds = %25
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #7
  br label %37

30:                                               ; preds = %25
  %31 = load i64, ptr %5, align 8, !tbaa !8
  %32 = getelementptr inbounds i32, ptr %24, i64 %31
  %33 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %32)
  br label %34

34:                                               ; preds = %30
  %35 = load i64, ptr %5, align 8, !tbaa !8
  %36 = add nsw i64 %35, 1
  store i64 %36, ptr %5, align 8, !tbaa !8
  br label %25, !llvm.loop !11

37:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #7
  store i64 0, ptr %6, align 8, !tbaa !8
  br label %38

38:                                               ; preds = %67, %37
  %39 = load i64, ptr %6, align 8, !tbaa !8
  %40 = load i64, ptr %2, align 8, !tbaa !8
  %41 = icmp slt i64 %39, %40
  br i1 %41, label %43, label %42

42:                                               ; preds = %38
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #7
  br label %70

43:                                               ; preds = %38
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #7
  %44 = load i64, ptr %6, align 8, !tbaa !8
  %45 = getelementptr inbounds i32, ptr %24, i64 %44
  %46 = load i32, ptr %45, align 4, !tbaa !13
  %47 = sext i32 %46 to i64
  %48 = load i64, ptr %2, align 8, !tbaa !8
  %49 = srem i64 %47, %48
  store i64 %49, ptr %7, align 8, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #7
  %50 = load i64, ptr %7, align 8, !tbaa !8
  %51 = getelementptr inbounds i32, ptr %24, i64 %50
  %52 = load i32, ptr %51, align 4, !tbaa !13
  %53 = sext i32 %52 to i64
  %54 = load i64, ptr %2, align 8, !tbaa !8
  %55 = srem i64 %53, %54
  store i64 %55, ptr %8, align 8, !tbaa !8
  %56 = load i64, ptr %2, align 8, !tbaa !8
  %57 = load i64, ptr %8, align 8, !tbaa !8
  %58 = mul nsw i64 %56, %57
  %59 = load i64, ptr %6, align 8, !tbaa !8
  %60 = getelementptr inbounds i32, ptr %24, i64 %59
  %61 = load i32, ptr %60, align 4, !tbaa !13
  %62 = sext i32 %61 to i64
  %63 = add nsw i64 %58, %62
  %64 = trunc i64 %63 to i32
  %65 = load i64, ptr %6, align 8, !tbaa !8
  %66 = getelementptr inbounds i32, ptr %24, i64 %65
  store i32 %64, ptr %66, align 4, !tbaa !13
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #7
  br label %67

67:                                               ; preds = %43
  %68 = load i64, ptr %6, align 8, !tbaa !8
  %69 = add nsw i64 %68, 1
  store i64 %69, ptr %6, align 8, !tbaa !8
  br label %38, !llvm.loop !15

70:                                               ; preds = %42
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #7
  store i64 0, ptr %9, align 8, !tbaa !8
  br label %71

71:                                               ; preds = %85, %70
  %72 = load i64, ptr %9, align 8, !tbaa !8
  %73 = load i64, ptr %2, align 8, !tbaa !8
  %74 = icmp slt i64 %72, %73
  br i1 %74, label %76, label %75

75:                                               ; preds = %71
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #7
  br label %88

76:                                               ; preds = %71
  %77 = load i64, ptr %9, align 8, !tbaa !8
  %78 = getelementptr inbounds i32, ptr %24, i64 %77
  %79 = load i32, ptr %78, align 4, !tbaa !13
  %80 = sext i32 %79 to i64
  %81 = load i64, ptr %2, align 8, !tbaa !8
  %82 = sdiv i64 %80, %81
  %83 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %82)
  %84 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %83, ptr noundef @.str.1)
  br label %85

85:                                               ; preds = %76
  %86 = load i64, ptr %9, align 8, !tbaa !8
  %87 = add nsw i64 %86, 1
  store i64 %87, ptr %9, align 8, !tbaa !8
  br label %71, !llvm.loop !16

88:                                               ; preds = %75
  store i32 0, ptr %1, align 4
  %89 = load ptr, ptr %3, align 8
  call void @llvm.stackrestore.p0(ptr %89)
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #7
  %90 = load i32, ptr %1, align 4
  ret i32 %90
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #1

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

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

declare i32 @__isoc99_scanf(ptr noundef, ...) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; 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) #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #6 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

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 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nocallback nofree nosync nounwind willreturn }
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 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !10, i64 0}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !12}


; 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" }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %3 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %4 = getelementptr i8, ptr %3, i64 -24
  %5 = load i64, ptr %4, align 8
  %6 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %5
  %7 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %6, ptr noundef null)
  %8 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %9 = getelementptr i8, ptr %8, i64 -24
  %10 = load i64, ptr %9, align 8
  %11 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %10
  %12 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %11, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #8
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %14 = load i64, ptr %1, align 8, !tbaa !8
  %15 = call ptr @llvm.stacksave.p0()
  %16 = alloca i32, i64 %14, align 16
  %17 = load i64, ptr %1, align 8, !tbaa !8
  %18 = icmp sgt i64 %17, 0
  br i1 %18, label %.lr.ph, label %._crit_edge

.preheader18:                                     ; preds = %.lr.ph
  %19 = icmp sgt i64 %23, 0
  br i1 %19, label %.lr.ph21, label %._crit_edge

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.01419 = phi i64 [ %22, %.lr.ph ], [ 0, %0 ]
  %20 = getelementptr inbounds i32, ptr %16, i64 %.01419
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %20)
  %22 = add nuw nsw i64 %.01419, 1
  %23 = load i64, ptr %1, align 8, !tbaa !8
  %24 = icmp slt i64 %22, %23
  br i1 %24, label %.lr.ph, label %.preheader18, !llvm.loop !11

.preheader:                                       ; preds = %.lr.ph21
  br i1 %19, label %.lr.ph23, label %._crit_edge

.lr.ph21:                                         ; preds = %.preheader18, %.lr.ph21
  %.01520 = phi i64 [ %36, %.lr.ph21 ], [ 0, %.preheader18 ]
  %25 = getelementptr inbounds i32, ptr %16, i64 %.01520
  %26 = load i32, ptr %25, align 4, !tbaa !13
  %27 = sext i32 %26 to i64
  %28 = srem i64 %27, %23
  %29 = getelementptr inbounds i32, ptr %16, i64 %28
  %30 = load i32, ptr %29, align 4, !tbaa !13
  %31 = sext i32 %30 to i64
  %32 = srem i64 %31, %23
  %33 = mul nsw i64 %32, %23
  %34 = trunc i64 %33 to i32
  %35 = add i32 %26, %34
  store i32 %35, ptr %25, align 4, !tbaa !13
  %36 = add nuw nsw i64 %.01520, 1
  %exitcond.not = icmp eq i64 %36, %23
  br i1 %exitcond.not, label %.preheader, label %.lr.ph21, !llvm.loop !15

._crit_edge:                                      ; preds = %.lr.ph23, %0, %.preheader18, %.preheader
  call void @llvm.stackrestore.p0(ptr %15)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #8
  ret i32 0

.lr.ph23:                                         ; preds = %.preheader, %.lr.ph23
  %37 = phi i64 [ %45, %.lr.ph23 ], [ %23, %.preheader ]
  %.022 = phi i64 [ %44, %.lr.ph23 ], [ 0, %.preheader ]
  %38 = getelementptr inbounds i32, ptr %16, i64 %.022
  %39 = load i32, ptr %38, align 4, !tbaa !13
  %40 = sext i32 %39 to i64
  %41 = sdiv i64 %40, %37
  %42 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %41)
  %43 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %42, ptr noundef nonnull @.str.1)
  %44 = add nuw nsw i64 %.022, 1
  %45 = load i64, ptr %1, align 8, !tbaa !8
  %46 = icmp slt i64 %44, %45
  br i1 %46, label %.lr.ph23, label %._crit_edge, !llvm.loop !16
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #1

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

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #5

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; 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 #6

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #7 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #5

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 = { "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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nofree nounwind "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 nocallback nofree nosync nounwind willreturn }
attributes #6 = { 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 #7 = { 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 #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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !10, i64 0}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !12}


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