; LLVM IR from Tunghohin/Competitive_Coding :: Luogu/p4513.ll (Z6modifyiii)

; 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"

%struct.Node = type { i32, i32, i32, i32, i32, i32 }

@tr = external dso_local global [2000040 x %struct.Node], 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 uwtable
declare dso_local void @_Z7push_upi(i32 noundef) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6modifyiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %struct.Node, align 4
  %8 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  %9 = load i32, ptr %4, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  %11 = getelementptr inbounds [2000040 x %struct.Node], ptr @tr, i64 0, i64 %10
  %12 = getelementptr inbounds %struct.Node, ptr %11, i32 0, i32 0
  %13 = load i32, ptr %12, align 8, !tbaa !9
  %14 = load i32, ptr %5, align 4, !tbaa !5
  %15 = icmp eq i32 %13, %14
  br i1 %15, label %16, label %40

16:                                               ; preds = %3
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [2000040 x %struct.Node], ptr @tr, i64 0, i64 %18
  %20 = getelementptr inbounds %struct.Node, ptr %19, i32 0, i32 1
  %21 = load i32, ptr %20, align 4, !tbaa !11
  %22 = load i32, ptr %5, align 4, !tbaa !5
  %23 = icmp eq i32 %21, %22
  br i1 %23, label %24, label %40

24:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #3
  %25 = getelementptr inbounds %struct.Node, ptr %7, i32 0, i32 0
  %26 = load i32, ptr %5, align 4, !tbaa !5
  store i32 %26, ptr %25, align 4, !tbaa !9
  %27 = getelementptr inbounds %struct.Node, ptr %7, i32 0, i32 1
  %28 = load i32, ptr %5, align 4, !tbaa !5
  store i32 %28, ptr %27, align 4, !tbaa !11
  %29 = getelementptr inbounds %struct.Node, ptr %7, i32 0, i32 2
  %30 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %30, ptr %29, align 4, !tbaa !12
  %31 = getelementptr inbounds %struct.Node, ptr %7, i32 0, i32 3
  %32 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %32, ptr %31, align 4, !tbaa !13
  %33 = getelementptr inbounds %struct.Node, ptr %7, i32 0, i32 4
  %34 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %34, ptr %33, align 4, !tbaa !14
  %35 = getelementptr inbounds %struct.Node, ptr %7, i32 0, i32 5
  %36 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %36, ptr %35, align 4, !tbaa !15
  %37 = load i32, ptr %4, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [2000040 x %struct.Node], ptr @tr, i64 0, i64 %38
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %39, ptr align 4 %7, i64 24, i1 false), !tbaa.struct !16
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #3
  br label %74

40:                                               ; preds = %16, %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %41 = load i32, ptr %4, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds [2000040 x %struct.Node], ptr @tr, i64 0, i64 %42
  %44 = getelementptr inbounds %struct.Node, ptr %43, i32 0, i32 0
  %45 = load i32, ptr %44, align 8, !tbaa !9
  %46 = load i32, ptr %4, align 4, !tbaa !5
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds [2000040 x %struct.Node], ptr @tr, i64 0, i64 %47
  %49 = getelementptr inbounds %struct.Node, ptr %48, i32 0, i32 1
  %50 = load i32, ptr %49, align 4, !tbaa !11
  %51 = add nsw i32 %45, %50
  %52 = ashr i32 %51, 1
  store i32 %52, ptr %8, align 4, !tbaa !5
  %53 = load i32, ptr %5, align 4, !tbaa !5
  %54 = load i32, ptr %8, align 4, !tbaa !5
  %55 = icmp sle i32 %53, %54
  br i1 %55, label %56, label %61

56:                                               ; preds = %40
  %57 = load i32, ptr %4, align 4, !tbaa !5
  %58 = shl i32 %57, 1
  %59 = load i32, ptr %5, align 4, !tbaa !5
  %60 = load i32, ptr %6, align 4, !tbaa !5
  call void @_Z6modifyiii(i32 noundef %58, i32 noundef %59, i32 noundef %60)
  br label %72

61:                                               ; preds = %40
  %62 = load i32, ptr %5, align 4, !tbaa !5
  %63 = load i32, ptr %8, align 4, !tbaa !5
  %64 = icmp sgt i32 %62, %63
  br i1 %64, label %65, label %71

65:                                               ; preds = %61
  %66 = load i32, ptr %4, align 4, !tbaa !5
  %67 = shl i32 %66, 1
  %68 = or i32 %67, 1
  %69 = load i32, ptr %5, align 4, !tbaa !5
  %70 = load i32, ptr %6, align 4, !tbaa !5
  call void @_Z6modifyiii(i32 noundef %68, i32 noundef %69, i32 noundef %70)
  br label %71

71:                                               ; preds = %65, %61
  br label %72

72:                                               ; preds = %71, %56
  %73 = load i32, ptr %4, align 4, !tbaa !5
  call void @_Z7push_upi(i32 noundef %73)
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %74

74:                                               ; preds = %72, %24
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 nounwind willreturn memory(argmem: readwrite) }
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, !6, i64 0}
!10 = !{!"_ZTS4Node", !6, i64 0, !6, i64 4, !6, i64 8, !6, i64 12, !6, i64 16, !6, i64 20}
!11 = !{!10, !6, i64 4}
!12 = !{!10, !6, i64 8}
!13 = !{!10, !6, i64 12}
!14 = !{!10, !6, i64 16}
!15 = !{!10, !6, i64 20}
!16 = !{i64 0, i64 4, !5, i64 4, i64 4, !5, i64 8, i64 4, !5, i64 12, i64 4, !5, i64 16, i64 4, !5, i64 20, i64 4, !5}


; 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"

%struct.Node = type { i32, i32, i32, i32, i32, i32 }

@tr = external dso_local local_unnamed_addr global [2000040 x %struct.Node], align 16

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z7push_upi(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6modifyiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = sext i32 %0 to i64
  %5 = getelementptr inbounds [2000040 x %struct.Node], ptr @tr, i64 0, i64 %4
  %6 = load i32, ptr %5, align 8, !tbaa !5
  %7 = icmp eq i32 %6, %1
  %8 = getelementptr inbounds i8, ptr %5, i64 4
  %9 = load i32, ptr %8, align 4, !tbaa !10
  %10 = icmp eq i32 %9, %1
  %or.cond = select i1 %7, i1 %10, i1 false
  br i1 %or.cond, label %11, label %._crit_edge

11:                                               ; preds = %3
  store i32 %1, ptr %5, align 8, !tbaa !11
  %.sroa.5.0..sroa_idx = getelementptr inbounds i8, ptr %5, i64 8
  %12 = insertelement <4 x i32> poison, i32 %2, i64 0
  %13 = shufflevector <4 x i32> %12, <4 x i32> poison, <4 x i32> zeroinitializer
  store <4 x i32> %13, ptr %.sroa.5.0..sroa_idx, align 8, !tbaa !11
  br label %common.ret

common.ret:                                       ; preds = %11, %._crit_edge
  ret void

._crit_edge:                                      ; preds = %3
  %14 = add nsw i32 %9, %6
  %15 = ashr i32 %14, 1
  %.not = icmp slt i32 %15, %1
  %16 = shl i32 %0, 1
  %17 = zext i1 %.not to i32
  %.sink = or disjoint i32 %16, %17
  tail call void @_Z6modifyiii(i32 noundef %.sink, i32 noundef %1, i32 noundef %2)
  tail call void @_Z7push_upi(i32 noundef %0)
  br label %common.ret
}

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" }

!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, !7, i64 0}
!6 = !{!"_ZTS4Node", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !7, i64 20}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 4}
!11 = !{!7, !7, i64 0}


; Effective O3 passes: BDCEPass,DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass