; LLVM IR from tangjz/acm-icpc :: self_training/2015-01-26 (G)

; 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"

@a = external dso_local global i32, align 4
@b = external dso_local global i32, align 4
@n = external dso_local global i32, align 4
@seq = external dso_local global [3001 x i32], align 16
@hash = external dso_local global [3001 x i32], align 16
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [48 x i8], align 1

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

4:                                                ; preds = %106, %0
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @a, ptr noundef @b)
  %6 = icmp eq i32 %5, 2
  br i1 %6, label %7, label %114

7:                                                ; preds = %4
  call void @llvm.memset.p0.i64(ptr align 16 @hash, i8 -1, i64 12004, i1 false)
  store i32 0, ptr @n, align 4, !tbaa !5
  %8 = load i32, ptr @a, align 4, !tbaa !5
  %9 = load i32, ptr @b, align 4, !tbaa !5
  %10 = load i32, ptr @a, align 4, !tbaa !5
  %11 = load i32, ptr @b, align 4, !tbaa !5
  %12 = sdiv i32 %10, %11
  %13 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %8, i32 noundef %9, i32 noundef %12)
  %14 = load i32, ptr @b, align 4, !tbaa !5
  %15 = load i32, ptr @a, align 4, !tbaa !5
  %16 = srem i32 %15, %14
  store i32 %16, ptr @a, align 4, !tbaa !5
  %17 = load i32, ptr @n, align 4, !tbaa !5
  %18 = load i32, ptr @a, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %19
  store i32 %17, ptr %20, align 4, !tbaa !5
  br label %21

21:                                               ; preds = %44, %7
  %22 = load i32, ptr @a, align 4, !tbaa !5
  %23 = mul nsw i32 %22, 10
  store i32 %23, ptr @a, align 4, !tbaa !5
  %24 = load i32, ptr @a, align 4, !tbaa !5
  %25 = load i32, ptr @b, align 4, !tbaa !5
  %26 = sdiv i32 %24, %25
  %27 = load i32, ptr @n, align 4, !tbaa !5
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr @n, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [3001 x i32], ptr @seq, i64 0, i64 %29
  store i32 %26, ptr %30, align 4, !tbaa !5
  %31 = load i32, ptr @b, align 4, !tbaa !5
  %32 = load i32, ptr @a, align 4, !tbaa !5
  %33 = srem i32 %32, %31
  store i32 %33, ptr @a, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %34
  %36 = load i32, ptr %35, align 4, !tbaa !5
  %37 = icmp eq i32 %36, -1
  br i1 %37, label %38, label %43

38:                                               ; preds = %21
  %39 = load i32, ptr @n, align 4, !tbaa !5
  %40 = load i32, ptr @a, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %41
  store i32 %39, ptr %42, align 4, !tbaa !5
  br label %44

43:                                               ; preds = %21
  br label %45

44:                                               ; preds = %38
  br label %21, !llvm.loop !9

45:                                               ; preds = %43
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  store i32 1, ptr %2, align 4, !tbaa !5
  br label %46

46:                                               ; preds = %61, %45
  %47 = load i32, ptr %2, align 4, !tbaa !5
  %48 = load i32, ptr @a, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %49
  %51 = load i32, ptr %50, align 4, !tbaa !5
  %52 = icmp sle i32 %47, %51
  br i1 %52, label %54, label %53

53:                                               ; preds = %46
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  br label %64

54:                                               ; preds = %46
  %55 = load i32, ptr %2, align 4, !tbaa !5
  %56 = sext i32 %55 to i64
  %57 = getelementptr inbounds [3001 x i32], ptr @seq, i64 0, i64 %56
  %58 = load i32, ptr %57, align 4, !tbaa !5
  %59 = add nsw i32 48, %58
  %60 = call i32 @putchar(i32 noundef %59)
  br label %61

61:                                               ; preds = %54
  %62 = load i32, ptr %2, align 4, !tbaa !5
  %63 = add nsw i32 %62, 1
  store i32 %63, ptr %2, align 4, !tbaa !5
  br label %46, !llvm.loop !11

64:                                               ; preds = %53
  %65 = call i32 @putchar(i32 noundef 40)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  store i32 1, ptr %3, align 4, !tbaa !5
  br label %66

66:                                               ; preds = %93, %64
  %67 = load i32, ptr %3, align 4, !tbaa !5
  %68 = icmp sle i32 %67, 50
  br i1 %68, label %69, label %78

69:                                               ; preds = %66
  %70 = load i32, ptr @a, align 4, !tbaa !5
  %71 = sext i32 %70 to i64
  %72 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %71
  %73 = load i32, ptr %72, align 4, !tbaa !5
  %74 = load i32, ptr %3, align 4, !tbaa !5
  %75 = add nsw i32 %73, %74
  %76 = load i32, ptr @n, align 4, !tbaa !5
  %77 = icmp sle i32 %75, %76
  br label %78

78:                                               ; preds = %69, %66
  %79 = phi i1 [ false, %66 ], [ %77, %69 ]
  br i1 %79, label %81, label %80

80:                                               ; preds = %78
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  br label %96

81:                                               ; preds = %78
  %82 = load i32, ptr @a, align 4, !tbaa !5
  %83 = sext i32 %82 to i64
  %84 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %83
  %85 = load i32, ptr %84, align 4, !tbaa !5
  %86 = load i32, ptr %3, align 4, !tbaa !5
  %87 = add nsw i32 %85, %86
  %88 = sext i32 %87 to i64
  %89 = getelementptr inbounds [3001 x i32], ptr @seq, i64 0, i64 %88
  %90 = load i32, ptr %89, align 4, !tbaa !5
  %91 = add nsw i32 48, %90
  %92 = call i32 @putchar(i32 noundef %91)
  br label %93

93:                                               ; preds = %81
  %94 = load i32, ptr %3, align 4, !tbaa !5
  %95 = add nsw i32 %94, 1
  store i32 %95, ptr %3, align 4, !tbaa !5
  br label %66, !llvm.loop !12

96:                                               ; preds = %80
  %97 = load i32, ptr @a, align 4, !tbaa !5
  %98 = sext i32 %97 to i64
  %99 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %98
  %100 = load i32, ptr %99, align 4, !tbaa !5
  %101 = add nsw i32 %100, 50
  %102 = load i32, ptr @n, align 4, !tbaa !5
  %103 = icmp slt i32 %101, %102
  br i1 %103, label %104, label %106

104:                                              ; preds = %96
  %105 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  br label %106

106:                                              ; preds = %104, %96
  %107 = load i32, ptr @n, align 4, !tbaa !5
  %108 = load i32, ptr @a, align 4, !tbaa !5
  %109 = sext i32 %108 to i64
  %110 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %109
  %111 = load i32, ptr %110, align 4, !tbaa !5
  %112 = sub nsw i32 %107, %111
  %113 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i32 noundef %112)
  br label %4, !llvm.loop !13

114:                                              ; preds = %4
  ret i32 0
}

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

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

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

; Function Attrs: inlinehint mustprogress uwtable
declare i32 @putchar(i32 noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { "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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = distinct !{!12, !10}
!13 = distinct !{!13, !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"

@a = external dso_local global i32, align 4
@b = external dso_local global i32, align 4
@n = external dso_local local_unnamed_addr global i32, align 4
@seq = external dso_local local_unnamed_addr global [3001 x i32], align 16
@hash = external dso_local local_unnamed_addr global [3001 x i32], align 16
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [48 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @a, ptr noundef nonnull @b)
  %2 = icmp eq i32 %1, 2
  br i1 %2, label %.lr.ph15, label %._crit_edge16

.lr.ph15:                                         ; preds = %0, %64
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(12004) @hash, i8 -1, i64 12004, i1 false)
  store i32 0, ptr @n, align 4, !tbaa !5
  %3 = load i32, ptr @a, align 4, !tbaa !5
  %4 = load i32, ptr @b, align 4, !tbaa !5
  %5 = sdiv i32 %3, %4
  %6 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %3, i32 noundef %4, i32 noundef %5)
  %7 = load i32, ptr @b, align 4, !tbaa !5
  %8 = load i32, ptr @a, align 4, !tbaa !5
  %9 = srem i32 %8, %7
  %10 = load i32, ptr @n, align 4, !tbaa !5
  %11 = sext i32 %9 to i64
  %12 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %11
  store i32 %10, ptr %12, align 4, !tbaa !5
  %13 = sext i32 %10 to i64
  %14 = mul nsw i32 %9, 10
  %15 = sdiv i32 %14, %7
  %indvars.iv.next41 = add nsw i64 %13, 1
  %16 = getelementptr inbounds [3001 x i32], ptr @seq, i64 0, i64 %indvars.iv.next41
  store i32 %15, ptr %16, align 4, !tbaa !5
  %17 = srem i32 %14, %7
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %18
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = icmp eq i32 %20, -1
  br i1 %21, label %.lr.ph43, label %.preheader

.preheader:                                       ; preds = %.lr.ph43, %.lr.ph15
  %indvars.iv.next.lcssa = phi i64 [ %indvars.iv.next41, %.lr.ph15 ], [ %indvars.iv.next, %.lr.ph43 ]
  %.lcssa36 = phi i32 [ %17, %.lr.ph15 ], [ %29, %.lr.ph43 ]
  %.lcssa = phi i32 [ %20, %.lr.ph15 ], [ %32, %.lr.ph43 ]
  %22 = trunc nsw i64 %indvars.iv.next.lcssa to i32
  store i32 %.lcssa36, ptr @a, align 4, !tbaa !5
  store i32 %22, ptr @n, align 4, !tbaa !5
  %.not11 = icmp slt i32 %.lcssa, 1
  br i1 %.not11, label %._crit_edge, label %.lr.ph

.lr.ph43:                                         ; preds = %.lr.ph15, %.lr.ph43
  %23 = phi ptr [ %31, %.lr.ph43 ], [ %19, %.lr.ph15 ]
  %24 = phi i32 [ %29, %.lr.ph43 ], [ %17, %.lr.ph15 ]
  %indvars.iv.next42 = phi i64 [ %indvars.iv.next, %.lr.ph43 ], [ %indvars.iv.next41, %.lr.ph15 ]
  %25 = trunc nsw i64 %indvars.iv.next42 to i32
  store i32 %25, ptr %23, align 4, !tbaa !5
  %26 = mul nsw i32 %24, 10
  %27 = sdiv i32 %26, %7
  %indvars.iv.next = add nsw i64 %indvars.iv.next42, 1
  %28 = getelementptr inbounds [3001 x i32], ptr @seq, i64 0, i64 %indvars.iv.next
  store i32 %27, ptr %28, align 4, !tbaa !5
  %29 = srem i32 %26, %7
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %30
  %32 = load i32, ptr %31, align 4, !tbaa !5
  %33 = icmp eq i32 %32, -1
  br i1 %33, label %.lr.ph43, label %.preheader, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  %34 = tail call i32 @putchar(i32 noundef 40)
  br label %44

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %indvars.iv19 = phi i64 [ %indvars.iv.next20, %.lr.ph ], [ 1, %.preheader ]
  %35 = getelementptr inbounds [3001 x i32], ptr @seq, i64 0, i64 %indvars.iv19
  %36 = load i32, ptr %35, align 4, !tbaa !5
  %37 = add nsw i32 %36, 48
  %38 = tail call i32 @putchar(i32 noundef %37)
  %indvars.iv.next20 = add nuw nsw i64 %indvars.iv19, 1
  %39 = load i32, ptr @a, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %40
  %42 = load i32, ptr %41, align 4, !tbaa !5
  %43 = sext i32 %42 to i64
  %.not.not = icmp slt i64 %indvars.iv19, %43
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !11

44:                                               ; preds = %._crit_edge, %55
  %.013 = phi i32 [ 1, %._crit_edge ], [ %61, %55 ]
  %45 = load i32, ptr @a, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %46
  %48 = load i32, ptr %47, align 4, !tbaa !5
  %49 = add nsw i32 %48, %.013
  %50 = load i32, ptr @n, align 4, !tbaa !5
  %.not9 = icmp sgt i32 %49, %50
  br i1 %.not9, label %.critedge, label %55

.critedge:                                        ; preds = %44, %..critedge_crit_edge
  %51 = phi i32 [ %.pre24, %..critedge_crit_edge ], [ %50, %44 ]
  %52 = phi i32 [ %.pre23, %..critedge_crit_edge ], [ %48, %44 ]
  %53 = add nsw i32 %52, 50
  %54 = icmp slt i32 %53, %51
  br i1 %54, label %62, label %64

55:                                               ; preds = %44
  %56 = sext i32 %49 to i64
  %57 = getelementptr inbounds [3001 x i32], ptr @seq, i64 0, i64 %56
  %58 = load i32, ptr %57, align 4, !tbaa !5
  %59 = add nsw i32 %58, 48
  %60 = tail call i32 @putchar(i32 noundef %59)
  %61 = add nuw nsw i32 %.013, 1
  %exitcond.not = icmp eq i32 %61, 51
  br i1 %exitcond.not, label %..critedge_crit_edge, label %44, !llvm.loop !12

..critedge_crit_edge:                             ; preds = %55
  %.pre = load i32, ptr @a, align 4, !tbaa !5
  %.phi.trans.insert = sext i32 %.pre to i64
  %.phi.trans.insert22 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %.phi.trans.insert
  %.pre23 = load i32, ptr %.phi.trans.insert22, align 4, !tbaa !5
  %.pre24 = load i32, ptr @n, align 4, !tbaa !5
  br label %.critedge

62:                                               ; preds = %.critedge
  %63 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  %.pre25 = load i32, ptr @n, align 4, !tbaa !5
  %.pre26 = load i32, ptr @a, align 4, !tbaa !5
  %.phi.trans.insert27 = sext i32 %.pre26 to i64
  %.phi.trans.insert28 = getelementptr inbounds [3001 x i32], ptr @hash, i64 0, i64 %.phi.trans.insert27
  %.pre29 = load i32, ptr %.phi.trans.insert28, align 4, !tbaa !5
  br label %64

64:                                               ; preds = %62, %.critedge
  %65 = phi i32 [ %.pre29, %62 ], [ %52, %.critedge ]
  %66 = phi i32 [ %.pre25, %62 ], [ %51, %.critedge ]
  %67 = sub nsw i32 %66, %65
  %68 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i32 noundef %67)
  %69 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @a, ptr noundef nonnull @b)
  %70 = icmp eq i32 %69, 2
  br i1 %70, label %.lr.ph15, label %._crit_edge16, !llvm.loop !13

._crit_edge16:                                    ; preds = %64, %0
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress nofree nounwind uwtable
declare noundef i32 @putchar(i32 noundef) local_unnamed_addr #3

attributes #0 = { mustprogress nofree norecurse 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 = { 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 #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { inlinehint mustprogress nofree 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" }

!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 = distinct !{!12, !10}
!13 = distinct !{!13, !10}


; Effective O3 passes: BDCEPass,DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass