; LLVM IR from tangjz/acm-icpc :: TDL_training/2016-04-10 (D - Archer in Archery - lzy)

; 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"

@T = external dso_local global i32, align 4
@n = external dso_local global i32, align 4
@h = external dso_local global [10009 x i32], align 16
@s = external dso_local global [10009 x i32], align 16
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z5checki(i32 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 i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @T)
  br label %8

8:                                                ; preds = %71, %0
  %9 = load i32, ptr @T, align 4, !tbaa !5
  %10 = add nsw i32 %9, -1
  store i32 %10, ptr @T, align 4, !tbaa !5
  %11 = icmp ne i32 %9, 0
  br i1 %11, label %12, label %74

12:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #4
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 100000000, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @n)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %14

14:                                               ; preds = %36, %12
  %15 = load i32, ptr %5, align 4, !tbaa !5
  %16 = load i32, ptr @n, align 4, !tbaa !5
  %17 = icmp slt i32 %15, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %39

19:                                               ; preds = %14
  %20 = load i32, ptr %5, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds i32, ptr @h, i64 %21
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %22)
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds [10009 x i32], ptr @h, i64 0, i64 %26
  %28 = load i32, ptr %27, align 4, !tbaa !5
  %29 = icmp slt i32 %24, %28
  br i1 %29, label %30, label %35

30:                                               ; preds = %19
  %31 = load i32, ptr %5, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [10009 x i32], ptr @h, i64 0, i64 %32
  %34 = load i32, ptr %33, align 4, !tbaa !5
  store i32 %34, ptr %2, align 4, !tbaa !5
  br label %35

35:                                               ; preds = %30, %19
  br label %36

36:                                               ; preds = %35
  %37 = load i32, ptr %5, align 4, !tbaa !5
  %38 = add nsw i32 %37, 1
  store i32 %38, ptr %5, align 4, !tbaa !5
  br label %14, !llvm.loop !9

39:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %40

40:                                               ; preds = %50, %39
  %41 = load i32, ptr %6, align 4, !tbaa !5
  %42 = load i32, ptr @n, align 4, !tbaa !5
  %43 = icmp slt i32 %41, %42
  br i1 %43, label %45, label %44

44:                                               ; preds = %40
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %53

45:                                               ; preds = %40
  %46 = load i32, ptr %6, align 4, !tbaa !5
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds i32, ptr @s, i64 %47
  %49 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %48)
  br label %50

50:                                               ; preds = %45
  %51 = load i32, ptr %6, align 4, !tbaa !5
  %52 = add nsw i32 %51, 1
  store i32 %52, ptr %6, align 4, !tbaa !5
  br label %40, !llvm.loop !11

53:                                               ; preds = %44
  br label %54

54:                                               ; preds = %70, %53
  %55 = load i32, ptr %2, align 4, !tbaa !5
  %56 = load i32, ptr %3, align 4, !tbaa !5
  %57 = icmp slt i32 %55, %56
  br i1 %57, label %58, label %71

58:                                               ; preds = %54
  %59 = load i32, ptr %2, align 4, !tbaa !5
  %60 = load i32, ptr %3, align 4, !tbaa !5
  %61 = add nsw i32 %59, %60
  %62 = ashr i32 %61, 1
  store i32 %62, ptr %4, align 4, !tbaa !5
  %63 = load i32, ptr %4, align 4, !tbaa !5
  %64 = call noundef zeroext i1 @_Z5checki(i32 noundef %63)
  br i1 %64, label %65, label %67

65:                                               ; preds = %58
  %66 = load i32, ptr %4, align 4, !tbaa !5
  store i32 %66, ptr %3, align 4, !tbaa !5
  br label %70

67:                                               ; preds = %58
  %68 = load i32, ptr %4, align 4, !tbaa !5
  %69 = add nsw i32 %68, 1
  store i32 %69, ptr %2, align 4, !tbaa !5
  br label %70

70:                                               ; preds = %67, %65
  br label %54, !llvm.loop !12

71:                                               ; preds = %54
  %72 = load i32, ptr %2, align 4, !tbaa !5
  %73 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %72)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  br label %8, !llvm.loop !13

74:                                               ; preds = %8
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #3

declare i32 @printf(ptr noundef, ...) #3

attributes #0 = { 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 #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 = { 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"

@T = external dso_local global i32, align 4
@n = external dso_local global i32, align 4
@h = external dso_local global [10009 x i32], align 16
@s = external dso_local global [10009 x i32], align 16
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z5checki(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 {
  %1 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @T)
  %2 = load i32, ptr @T, align 4, !tbaa !5
  %3 = add nsw i32 %2, -1
  store i32 %3, ptr @T, align 4, !tbaa !5
  %.not31 = icmp eq i32 %2, 0
  br i1 %.not31, label %._crit_edge34, label %.lr.ph33

.lr.ph33:                                         ; preds = %0, %._crit_edge
  %4 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @n)
  %5 = load i32, ptr @n, align 4, !tbaa !5
  %6 = icmp sgt i32 %5, 0
  br i1 %6, label %.lr.ph, label %.lr.ph29.preheader

.preheader22:                                     ; preds = %.lr.ph
  %7 = icmp sgt i32 %11, 0
  br i1 %7, label %.lr.ph26, label %.preheader

.lr.ph:                                           ; preds = %.lr.ph33, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.lr.ph33 ]
  %.01823 = phi i32 [ %spec.select, %.lr.ph ], [ 0, %.lr.ph33 ]
  %8 = getelementptr inbounds i32, ptr @h, i64 %indvars.iv
  %9 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %8)
  %10 = load i32, ptr %8, align 4, !tbaa !5
  %spec.select = tail call i32 @llvm.smax.i32(i32 %.01823, i32 %10)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %11 = load i32, ptr @n, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = icmp slt i64 %indvars.iv.next, %12
  br i1 %13, label %.lr.ph, label %.preheader22, !llvm.loop !9

.preheader:                                       ; preds = %.lr.ph26, %.preheader22
  %14 = icmp slt i32 %spec.select, 100000000
  br i1 %14, label %.lr.ph29.preheader, label %._crit_edge

.lr.ph29.preheader:                               ; preds = %.lr.ph33, %.preheader
  %.228.ph = phi i32 [ 0, %.lr.ph33 ], [ %spec.select, %.preheader ]
  br label %.lr.ph29

.lr.ph26:                                         ; preds = %.preheader22, %.lr.ph26
  %indvars.iv36 = phi i64 [ %indvars.iv.next37, %.lr.ph26 ], [ 0, %.preheader22 ]
  %15 = getelementptr inbounds i32, ptr @s, i64 %indvars.iv36
  %16 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %15)
  %indvars.iv.next37 = add nuw nsw i64 %indvars.iv36, 1
  %17 = load i32, ptr @n, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = icmp slt i64 %indvars.iv.next37, %18
  br i1 %19, label %.lr.ph26, label %.preheader, !llvm.loop !11

.lr.ph29:                                         ; preds = %.lr.ph29.preheader, %.lr.ph29
  %.228 = phi i32 [ %.3, %.lr.ph29 ], [ %.228.ph, %.lr.ph29.preheader ]
  %.01927 = phi i32 [ %.120, %.lr.ph29 ], [ 100000000, %.lr.ph29.preheader ]
  %20 = add nsw i32 %.228, %.01927
  %21 = ashr i32 %20, 1
  %22 = tail call noundef zeroext i1 @_Z5checki(i32 noundef %21)
  %23 = add nsw i32 %21, 1
  %.120 = select i1 %22, i32 %21, i32 %.01927
  %.3 = select i1 %22, i32 %.228, i32 %23
  %24 = icmp slt i32 %.3, %.120
  br i1 %24, label %.lr.ph29, label %._crit_edge, !llvm.loop !12

._crit_edge:                                      ; preds = %.lr.ph29, %.preheader
  %.2.lcssa = phi i32 [ %spec.select, %.preheader ], [ %.3, %.lr.ph29 ]
  %25 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %.2.lcssa)
  %26 = load i32, ptr @T, align 4, !tbaa !5
  %27 = add nsw i32 %26, -1
  store i32 %27, ptr @T, align 4, !tbaa !5
  %.not = icmp eq i32 %26, 0
  br i1 %.not, label %._crit_edge34, label %.lr.ph33, !llvm.loop !13

._crit_edge34:                                    ; preds = %._crit_edge, %0
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #3

attributes #0 = { 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 #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 = { 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 #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass