; LLVM IR from tangjz/acm-icpc :: lydsy/4115.ll (Z5queryiiii)

; 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"

@seg = external dso_local global [1048576 x i32], align 16
@f = external dso_local global [500001 x i64], align 16

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z7seg_idxii(i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5queryiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) #2 {
  %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
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  store i32 %0, ptr %6, align 4, !tbaa !5
  store i32 %1, ptr %7, align 4, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !5
  store i32 %3, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  %15 = load i32, ptr %6, align 4, !tbaa !5
  %16 = load i32, ptr %7, align 4, !tbaa !5
  %17 = call noundef i32 @_Z7seg_idxii(i32 noundef %15, i32 noundef %16)
  store i32 %17, ptr %10, align 4, !tbaa !5
  %18 = load i32, ptr %8, align 4, !tbaa !5
  %19 = load i32, ptr %6, align 4, !tbaa !5
  %20 = icmp sle i32 %18, %19
  br i1 %20, label %21, label %30

21:                                               ; preds = %4
  %22 = load i32, ptr %7, align 4, !tbaa !5
  %23 = load i32, ptr %9, align 4, !tbaa !5
  %24 = icmp sle i32 %22, %23
  br i1 %24, label %25, label %30

25:                                               ; preds = %21
  %26 = load i32, ptr %10, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [1048576 x i32], ptr @seg, i64 0, i64 %27
  %29 = load i32, ptr %28, align 4, !tbaa !5
  store i32 %29, ptr %5, align 4
  store i32 1, ptr %11, align 4
  br label %72

30:                                               ; preds = %21, %4
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  %31 = load i32, ptr %6, align 4, !tbaa !5
  %32 = load i32, ptr %7, align 4, !tbaa !5
  %33 = add nsw i32 %31, %32
  %34 = ashr i32 %33, 1
  store i32 %34, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  store i32 -1, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  %35 = load i32, ptr %8, align 4, !tbaa !5
  %36 = load i32, ptr %12, align 4, !tbaa !5
  %37 = icmp sle i32 %35, %36
  br i1 %37, label %38, label %44

38:                                               ; preds = %30
  %39 = load i32, ptr %6, align 4, !tbaa !5
  %40 = load i32, ptr %12, align 4, !tbaa !5
  %41 = load i32, ptr %8, align 4, !tbaa !5
  %42 = load i32, ptr %9, align 4, !tbaa !5
  %43 = call noundef i32 @_Z5queryiiii(i32 noundef %39, i32 noundef %40, i32 noundef %41, i32 noundef %42)
  store i32 %43, ptr %13, align 4, !tbaa !5
  br label %44

44:                                               ; preds = %38, %30
  %45 = load i32, ptr %9, align 4, !tbaa !5
  %46 = load i32, ptr %12, align 4, !tbaa !5
  %47 = icmp sgt i32 %45, %46
  br i1 %47, label %48, label %70

48:                                               ; preds = %44
  %49 = load i32, ptr %12, align 4, !tbaa !5
  %50 = add nsw i32 %49, 1
  %51 = load i32, ptr %7, align 4, !tbaa !5
  %52 = load i32, ptr %8, align 4, !tbaa !5
  %53 = load i32, ptr %9, align 4, !tbaa !5
  %54 = call noundef i32 @_Z5queryiiii(i32 noundef %50, i32 noundef %51, i32 noundef %52, i32 noundef %53)
  store i32 %54, ptr %14, align 4, !tbaa !5
  %55 = load i32, ptr %13, align 4, !tbaa !5
  %56 = icmp eq i32 %55, -1
  br i1 %56, label %67, label %57

57:                                               ; preds = %48
  %58 = load i32, ptr %13, align 4, !tbaa !5
  %59 = sext i32 %58 to i64
  %60 = getelementptr inbounds [500001 x i64], ptr @f, i64 0, i64 %59
  %61 = load i64, ptr %60, align 8, !tbaa !9
  %62 = load i32, ptr %14, align 4, !tbaa !5
  %63 = sext i32 %62 to i64
  %64 = getelementptr inbounds [500001 x i64], ptr @f, i64 0, i64 %63
  %65 = load i64, ptr %64, align 8, !tbaa !9
  %66 = icmp slt i64 %61, %65
  br i1 %66, label %67, label %69

67:                                               ; preds = %57, %48
  %68 = load i32, ptr %14, align 4, !tbaa !5
  store i32 %68, ptr %13, align 4, !tbaa !5
  br label %69

69:                                               ; preds = %67, %57
  br label %70

70:                                               ; preds = %69, %44
  %71 = load i32, ptr %13, align 4, !tbaa !5
  store i32 %71, ptr %5, align 4
  store i32 1, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  br label %72

72:                                               ; preds = %70, %25
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  %73 = load i32, ptr %5, align 4
  ret i32 %73
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 #2 = { 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 #3 = { 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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}


; 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"

@seg = external dso_local local_unnamed_addr global [1048576 x i32], align 16
@f = external dso_local local_unnamed_addr global [500001 x i64], align 16

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z7seg_idxii(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z5queryiiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) local_unnamed_addr #1 {
  %5 = tail call noundef i32 @_Z7seg_idxii(i32 noundef %0, i32 noundef %1)
  %.not = icmp sgt i32 %2, %0
  %.not32 = icmp sgt i32 %1, %3
  %or.cond = or i1 %.not, %.not32
  br i1 %or.cond, label %10, label %6

6:                                                ; preds = %4
  %7 = sext i32 %5 to i64
  %8 = getelementptr inbounds [1048576 x i32], ptr @seg, i64 0, i64 %7
  %9 = load i32, ptr %8, align 4, !tbaa !5
  br label %30

10:                                               ; preds = %4
  %11 = add nsw i32 %1, %0
  %12 = ashr i32 %11, 1
  %.not33 = icmp slt i32 %12, %2
  br i1 %.not33, label %15, label %13

13:                                               ; preds = %10
  %14 = tail call noundef i32 @_Z5queryiiii(i32 noundef %0, i32 noundef %12, i32 noundef %2, i32 noundef %3)
  br label %15

15:                                               ; preds = %13, %10
  %.027 = phi i32 [ %14, %13 ], [ -1, %10 ]
  %16 = icmp slt i32 %12, %3
  br i1 %16, label %17, label %30

17:                                               ; preds = %15
  %18 = add nsw i32 %12, 1
  %19 = tail call noundef i32 @_Z5queryiiii(i32 noundef %18, i32 noundef %1, i32 noundef %2, i32 noundef %3)
  %20 = icmp eq i32 %.027, -1
  br i1 %20, label %29, label %21

21:                                               ; preds = %17
  %22 = sext i32 %.027 to i64
  %23 = getelementptr inbounds [500001 x i64], ptr @f, i64 0, i64 %22
  %24 = load i64, ptr %23, align 8, !tbaa !9
  %25 = sext i32 %19 to i64
  %26 = getelementptr inbounds [500001 x i64], ptr @f, i64 0, i64 %25
  %27 = load i64, ptr %26, align 8, !tbaa !9
  %28 = icmp slt i64 %24, %27
  br i1 %28, label %29, label %30

29:                                               ; preds = %21, %17
  br label %30

30:                                               ; preds = %15, %29, %21, %6
  %.0 = phi i32 [ %9, %6 ], [ %19, %29 ], [ %.027, %21 ], [ %.027, %15 ]
  ret i32 %.0
}

attributes #0 = { inlinehint 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 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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass