; LLVM IR from tangjz/acm-icpc :: lydsy/3626.ll (Z5queryi)

; 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"

@fa = external dso_local global [50001 x i32], align 16
@top = external dso_local global [50001 x i32], align 16
@in = external dso_local global [50001 x i32], 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: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z3sumi(i32 noundef) #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z5queryi(i32 noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 0, ptr %3, align 4, !tbaa !5
  br label %4

4:                                                ; preds = %36, %1
  %5 = load i32, ptr %2, align 4, !tbaa !5
  %6 = icmp sge i32 %5, 0
  br i1 %6, label %7, label %44

7:                                                ; preds = %4
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = getelementptr inbounds [50001 x i32], ptr @in, i64 0, i64 %9
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = call noundef i32 @_Z3sumi(i32 noundef %11)
  %13 = load i32, ptr %3, align 4, !tbaa !5
  %14 = add nsw i32 %13, %12
  store i32 %14, ptr %3, align 4, !tbaa !5
  %15 = icmp sge i32 %14, 201314
  br i1 %15, label %16, label %19

16:                                               ; preds = %7
  %17 = load i32, ptr %3, align 4, !tbaa !5
  %18 = sub nsw i32 %17, 201314
  store i32 %18, ptr %3, align 4, !tbaa !5
  br label %19

19:                                               ; preds = %16, %7
  %20 = load i32, ptr %2, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [50001 x i32], ptr @top, i64 0, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds [50001 x i32], ptr @in, i64 0, i64 %24
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %27 = sub nsw i32 %26, 1
  %28 = call noundef i32 @_Z3sumi(i32 noundef %27)
  %29 = load i32, ptr %3, align 4, !tbaa !5
  %30 = sub nsw i32 %29, %28
  store i32 %30, ptr %3, align 4, !tbaa !5
  %31 = icmp slt i32 %30, 0
  br i1 %31, label %32, label %35

32:                                               ; preds = %19
  %33 = load i32, ptr %3, align 4, !tbaa !5
  %34 = add nsw i32 %33, 201314
  store i32 %34, ptr %3, align 4, !tbaa !5
  br label %35

35:                                               ; preds = %32, %19
  br label %36

36:                                               ; preds = %35
  %37 = load i32, ptr %2, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [50001 x i32], ptr @top, i64 0, i64 %38
  %40 = load i32, ptr %39, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [50001 x i32], ptr @fa, i64 0, i64 %41
  %43 = load i32, ptr %42, align 4, !tbaa !5
  store i32 %43, ptr %2, align 4, !tbaa !5
  br label %4, !llvm.loop !9

44:                                               ; preds = %4
  %45 = load i32, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret i32 %45
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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"}


; 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"

@fa = external dso_local local_unnamed_addr global [50001 x i32], align 16
@top = external dso_local local_unnamed_addr global [50001 x i32], align 16
@in = external dso_local local_unnamed_addr global [50001 x i32], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z3sumi(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef range(i32 -2147282334, -2147483648) i32 @_Z5queryi(i32 noundef %0) local_unnamed_addr #0 {
  %2 = icmp sgt i32 %0, -1
  br i1 %2, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.015 = phi i32 [ %.2, %.lr.ph ], [ 0, %1 ]
  %.0914 = phi i32 [ %23, %.lr.ph ], [ %0, %1 ]
  %3 = zext nneg i32 %.0914 to i64
  %4 = getelementptr inbounds [50001 x i32], ptr @in, i64 0, i64 %3
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %6 = tail call noundef i32 @_Z3sumi(i32 noundef %5)
  %7 = add nsw i32 %6, %.015
  %8 = icmp sgt i32 %7, 201313
  %9 = add nsw i32 %7, -201314
  %spec.select = select i1 %8, i32 %9, i32 %7
  %10 = getelementptr inbounds [50001 x i32], ptr @top, i64 0, i64 %3
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = getelementptr inbounds [50001 x i32], ptr @in, i64 0, i64 %12
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %15 = add nsw i32 %14, -1
  %16 = tail call noundef i32 @_Z3sumi(i32 noundef %15)
  %17 = sub nsw i32 %spec.select, %16
  %18 = icmp slt i32 %17, 0
  %19 = add nsw i32 %17, 201314
  %.2 = select i1 %18, i32 %19, i32 %17
  %20 = load i32, ptr %10, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [50001 x i32], ptr @fa, i64 0, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !5
  %24 = icmp sgt i32 %23, -1
  br i1 %24, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %1
  %.0.lcssa = phi i32 [ 0, %1 ], [ %.2, %.lr.ph ]
  ret i32 %.0.lcssa
}

attributes #0 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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