; LLVM IR from hanzohasashi33/Competetive_programming :: HackerEarth/Algorithms/Binary_Search (Bishu_And_Soldiers)

; 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"

@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
declare dso_local void @mergesort(ptr noundef, i32 noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #1 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #4
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  %13 = load i32, ptr %2, align 4, !tbaa !5
  %14 = zext i32 %13 to i64
  %15 = call ptr @llvm.stacksave.p0()
  store ptr %15, ptr %3, align 8
  %16 = alloca i32, i64 %14, align 16
  store i64 %14, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %17

17:                                               ; preds = %27, %0
  %18 = load i32, ptr %5, align 4, !tbaa !5
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = icmp slt i32 %18, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %30

22:                                               ; preds = %17
  %23 = load i32, ptr %5, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds i32, ptr %16, i64 %24
  %26 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %25)
  br label %27

27:                                               ; preds = %22
  %28 = load i32, ptr %5, align 4, !tbaa !5
  %29 = add nsw i32 %28, 1
  store i32 %29, ptr %5, align 4, !tbaa !5
  br label %17, !llvm.loop !9

30:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  %31 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %6)
  %32 = load i32, ptr %2, align 4, !tbaa !5
  %33 = sub nsw i32 %32, 1
  call void @mergesort(ptr noundef %16, i32 noundef 0, i32 noundef %33)
  br label %34

34:                                               ; preds = %66, %30
  %35 = load i32, ptr %6, align 4, !tbaa !5
  %36 = icmp sgt i32 %35, 0
  br i1 %36, label %37, label %72

37:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  %38 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %7)
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store i32 0, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  store i32 0, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  store i32 0, ptr %10, align 4, !tbaa !5
  br label %39

39:                                               ; preds = %62, %37
  %40 = load i32, ptr %10, align 4, !tbaa !5
  %41 = load i32, ptr %2, align 4, !tbaa !5
  %42 = icmp slt i32 %40, %41
  br i1 %42, label %44, label %43

43:                                               ; preds = %39
  store i32 7, ptr %11, align 4
  br label %65

44:                                               ; preds = %39
  %45 = load i32, ptr %10, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds i32, ptr %16, i64 %46
  %48 = load i32, ptr %47, align 4, !tbaa !5
  %49 = load i32, ptr %7, align 4, !tbaa !5
  %50 = icmp sle i32 %48, %49
  br i1 %50, label %51, label %60

51:                                               ; preds = %44
  %52 = load i32, ptr %10, align 4, !tbaa !5
  %53 = sext i32 %52 to i64
  %54 = getelementptr inbounds i32, ptr %16, i64 %53
  %55 = load i32, ptr %54, align 4, !tbaa !5
  %56 = load i32, ptr %9, align 4, !tbaa !5
  %57 = add nsw i32 %56, %55
  store i32 %57, ptr %9, align 4, !tbaa !5
  %58 = load i32, ptr %8, align 4, !tbaa !5
  %59 = add nsw i32 %58, 1
  store i32 %59, ptr %8, align 4, !tbaa !5
  br label %61

60:                                               ; preds = %44
  store i32 7, ptr %11, align 4
  br label %65

61:                                               ; preds = %51
  br label %62

62:                                               ; preds = %61
  %63 = load i32, ptr %10, align 4, !tbaa !5
  %64 = add nsw i32 %63, 1
  store i32 %64, ptr %10, align 4, !tbaa !5
  br label %39, !llvm.loop !11

65:                                               ; preds = %60, %43
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  br label %66

66:                                               ; preds = %65
  %67 = load i32, ptr %8, align 4, !tbaa !5
  %68 = load i32, ptr %9, align 4, !tbaa !5
  %69 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %67, i32 noundef %68)
  %70 = load i32, ptr %6, align 4, !tbaa !5
  %71 = add nsw i32 %70, -1
  store i32 %71, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %34, !llvm.loop !12

72:                                               ; preds = %34
  store i32 0, ptr %1, align 4
  store i32 1, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %73 = load ptr, ptr %3, align 8
  call void @llvm.stackrestore.p0(ptr %73)
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  %74 = load i32, ptr %1, align 4
  ret i32 %74
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #3

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { nocallback nofree nosync nounwind willreturn }
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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !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"

@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
declare dso_local void @mergesort(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #4
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %6 = zext i32 %5 to i64
  %7 = call ptr @llvm.stacksave.p0()
  %8 = alloca i32, i64 %6, align 16
  %9 = load i32, ptr %1, align 4, !tbaa !5
  %10 = icmp sgt i32 %9, 0
  br i1 %10, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = add nsw i32 %12, -1
  call void @mergesort(ptr noundef nonnull %8, i32 noundef 0, i32 noundef %13)
  %.pr = load i32, ptr %2, align 4, !tbaa !5
  %14 = icmp sgt i32 %.pr, 0
  br i1 %14, label %.lr.ph28, label %._crit_edge29

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %15 = getelementptr inbounds i32, ptr %8, i64 %indvars.iv
  %16 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %15)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %17 = load i32, ptr %1, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = icmp slt i64 %indvars.iv.next, %18
  br i1 %19, label %.lr.ph, label %._crit_edge, !llvm.loop !9

.lr.ph28:                                         ; preds = %._crit_edge, %._crit_edge22
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  %20 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3)
  %21 = load i32, ptr %1, align 4, !tbaa !5
  %22 = icmp sgt i32 %21, 0
  br i1 %22, label %.lr.ph21, label %._crit_edge22

.lr.ph21:                                         ; preds = %.lr.ph28
  %23 = load i32, ptr %3, align 4, !tbaa !5
  %wide.trip.count = zext nneg i32 %21 to i64
  br label %24

24:                                               ; preds = %.lr.ph21, %27
  %indvars.iv31 = phi i64 [ 0, %.lr.ph21 ], [ %indvars.iv.next32, %27 ]
  %.01218 = phi i32 [ 0, %.lr.ph21 ], [ %28, %27 ]
  %25 = getelementptr inbounds i32, ptr %8, i64 %indvars.iv31
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %.not = icmp sgt i32 %26, %23
  br i1 %.not, label %._crit_edge22.loopexit.split.loop.exit, label %27

27:                                               ; preds = %24
  %28 = add nsw i32 %26, %.01218
  %indvars.iv.next32 = add nuw nsw i64 %indvars.iv31, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next32, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge22, label %24, !llvm.loop !11

._crit_edge22.loopexit.split.loop.exit:           ; preds = %24
  %indvars35.le = trunc i64 %indvars.iv31 to i32
  br label %._crit_edge22

._crit_edge22:                                    ; preds = %27, %._crit_edge22.loopexit.split.loop.exit, %.lr.ph28
  %.013.lcssa = phi i32 [ 0, %.lr.ph28 ], [ %indvars35.le, %._crit_edge22.loopexit.split.loop.exit ], [ %21, %27 ]
  %.012.lcssa = phi i32 [ 0, %.lr.ph28 ], [ %.01218, %._crit_edge22.loopexit.split.loop.exit ], [ %28, %27 ]
  %29 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %.013.lcssa, i32 noundef %.012.lcssa)
  %30 = load i32, ptr %2, align 4, !tbaa !5
  %31 = add nsw i32 %30, -1
  store i32 %31, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  %32 = icmp sgt i32 %30, 1
  br i1 %32, label %.lr.ph28, label %._crit_edge29, !llvm.loop !12

._crit_edge29:                                    ; preds = %._crit_edge22, %._crit_edge
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  call void @llvm.stackrestore.p0(ptr %7)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #4
  ret i32 0
}

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

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #3

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

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { mustprogress nocallback nofree nosync nounwind willreturn }
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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


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