; LLVM IR from lzyrapx/Competitive-Programming :: ACdream/1104（Splay+Hash+二分）.ll (Z5Splayii)

; 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"

@son = external dso_local global [200010 x [2 x i32]], align 16
@fa = external dso_local global [200010 x i32], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z2upi(i32 noundef) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5Splayii(i32 noundef %0, i32 noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  br label %7

7:                                                ; preds = %55, %2
  %8 = load i32, ptr %3, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = getelementptr inbounds [200010 x i32], ptr @fa, i64 0, i64 %9
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = load i32, ptr %4, align 4, !tbaa !5
  %13 = sub nsw i32 %11, %12
  %14 = icmp ne i32 %13, 0
  br i1 %14, label %15, label %56

15:                                               ; preds = %7
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [200010 x i32], ptr @fa, i64 0, i64 %17
  %19 = load i32, ptr %18, align 4, !tbaa !5
  store i32 %19, ptr %5, align 4, !tbaa !5
  %20 = load i32, ptr %5, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [200010 x i32], ptr @fa, i64 0, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !5
  store i32 %23, ptr %6, align 4, !tbaa !5
  %24 = load i32, ptr %6, align 4, !tbaa !5
  %25 = load i32, ptr %4, align 4, !tbaa !5
  %26 = icmp eq i32 %24, %25
  br i1 %26, label %27, label %29

27:                                               ; preds = %15
  %28 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z6Rotatei(i32 noundef %28)
  br label %55

29:                                               ; preds = %15
  %30 = load i32, ptr %5, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds [200010 x [2 x i32]], ptr @son, i64 0, i64 %31
  %33 = getelementptr inbounds [2 x i32], ptr %32, i64 0, i64 1
  %34 = load i32, ptr %33, align 4, !tbaa !5
  %35 = load i32, ptr %3, align 4, !tbaa !5
  %36 = icmp eq i32 %34, %35
  %37 = zext i1 %36 to i32
  %38 = load i32, ptr %6, align 4, !tbaa !5
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds [200010 x [2 x i32]], ptr @son, i64 0, i64 %39
  %41 = getelementptr inbounds [2 x i32], ptr %40, i64 0, i64 1
  %42 = load i32, ptr %41, align 4, !tbaa !5
  %43 = load i32, ptr %5, align 4, !tbaa !5
  %44 = icmp eq i32 %42, %43
  %45 = zext i1 %44 to i32
  %46 = xor i32 %37, %45
  %47 = icmp ne i32 %46, 0
  br i1 %47, label %48, label %51

48:                                               ; preds = %29
  %49 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z6Rotatei(i32 noundef %49)
  %50 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z6Rotatei(i32 noundef %50)
  br label %54

51:                                               ; preds = %29
  %52 = load i32, ptr %5, align 4, !tbaa !5
  call void @_Z6Rotatei(i32 noundef %52)
  %53 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z6Rotatei(i32 noundef %53)
  br label %54

54:                                               ; preds = %51, %48
  br label %55

55:                                               ; preds = %54, %27
  br label %7, !llvm.loop !9

56:                                               ; preds = %7
  %57 = load i32, ptr %3, align 4, !tbaa !5
  call void @_Z2upi(i32 noundef %57)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_Z6Rotatei(i32 noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

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" }
attributes #1 = { 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #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"}


; 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"

@son = external dso_local local_unnamed_addr global [200010 x [2 x i32]], align 16
@fa = external dso_local local_unnamed_addr global [200010 x i32], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z2upi(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z5Splayii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = sext i32 %0 to i64
  %4 = getelementptr inbounds [200010 x i32], ptr @fa, i64 0, i64 %3
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %.not16 = icmp eq i32 %5, %1
  br i1 %.not16, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %19
  %6 = phi i32 [ %20, %19 ], [ %5, %2 ]
  %7 = sext i32 %6 to i64
  %8 = getelementptr inbounds [200010 x i32], ptr @fa, i64 0, i64 %7
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %10 = icmp eq i32 %9, %1
  br i1 %10, label %19, label %.sink.split

.sink.split:                                      ; preds = %.lr.ph
  %11 = getelementptr inbounds [200010 x [2 x i32]], ptr @son, i64 0, i64 %7, i64 1
  %12 = load i32, ptr %11, align 4, !tbaa !5
  %13 = icmp eq i32 %12, %0
  %14 = sext i32 %9 to i64
  %15 = getelementptr inbounds [200010 x [2 x i32]], ptr @son, i64 0, i64 %14, i64 1
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = icmp eq i32 %16, %6
  %18 = xor i1 %13, %17
  %. = select i1 %18, i32 %0, i32 %6
  tail call void @_Z6Rotatei(i32 noundef %.)
  br label %19

19:                                               ; preds = %.sink.split, %.lr.ph
  tail call void @_Z6Rotatei(i32 noundef %0)
  %20 = load i32, ptr %4, align 4, !tbaa !5
  %.not = icmp eq i32 %20, %1
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %19, %2
  tail call void @_Z2upi(i32 noundef %0)
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_Z6Rotatei(i32 noundef) local_unnamed_addr #1

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" }
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" }

!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,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass