; LLVM IR from Tunghohin/Competitive_Coding :: Hdu/hdu1166.ll (Z5queryiii)

; 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 }

@tr = external dso_local global [200040 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
define dso_local noundef i32 @_Z5queryiii(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 i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !5
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds [200040 x %struct.Node], ptr @tr, i64 0, i64 %11
  %13 = getelementptr inbounds %struct.Node, ptr %12, i32 0, i32 0
  %14 = load i32, ptr %13, align 4, !tbaa !9
  %15 = load i32, ptr %6, align 4, !tbaa !5
  %16 = icmp sge i32 %14, %15
  br i1 %16, label %17, label %31

17:                                               ; preds = %3
  %18 = load i32, ptr %5, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [200040 x %struct.Node], ptr @tr, i64 0, i64 %19
  %21 = getelementptr inbounds %struct.Node, ptr %20, i32 0, i32 1
  %22 = load i32, ptr %21, align 4, !tbaa !11
  %23 = load i32, ptr %7, align 4, !tbaa !5
  %24 = icmp sle i32 %22, %23
  br i1 %24, label %25, label %31

25:                                               ; preds = %17
  %26 = load i32, ptr %5, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [200040 x %struct.Node], ptr @tr, i64 0, i64 %27
  %29 = getelementptr inbounds %struct.Node, ptr %28, i32 0, i32 2
  %30 = load i32, ptr %29, align 4, !tbaa !12
  store i32 %30, ptr %4, align 4
  br label %68

31:                                               ; preds = %17, %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  %32 = load i32, ptr %5, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds [200040 x %struct.Node], ptr @tr, i64 0, i64 %33
  %35 = getelementptr inbounds %struct.Node, ptr %34, i32 0, i32 0
  %36 = load i32, ptr %35, align 4, !tbaa !9
  %37 = load i32, ptr %5, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [200040 x %struct.Node], ptr @tr, i64 0, i64 %38
  %40 = getelementptr inbounds %struct.Node, ptr %39, i32 0, i32 1
  %41 = load i32, ptr %40, align 4, !tbaa !11
  %42 = add nsw i32 %36, %41
  %43 = ashr i32 %42, 1
  store i32 %43, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  store i32 0, ptr %9, align 4, !tbaa !5
  %44 = load i32, ptr %6, align 4, !tbaa !5
  %45 = load i32, ptr %8, align 4, !tbaa !5
  %46 = icmp sle i32 %44, %45
  br i1 %46, label %47, label %53

47:                                               ; preds = %31
  %48 = load i32, ptr %5, align 4, !tbaa !5
  %49 = shl i32 %48, 1
  %50 = load i32, ptr %6, align 4, !tbaa !5
  %51 = load i32, ptr %7, align 4, !tbaa !5
  %52 = call noundef i32 @_Z5queryiii(i32 noundef %49, i32 noundef %50, i32 noundef %51)
  store i32 %52, ptr %9, align 4, !tbaa !5
  br label %53

53:                                               ; preds = %47, %31
  %54 = load i32, ptr %7, align 4, !tbaa !5
  %55 = load i32, ptr %8, align 4, !tbaa !5
  %56 = icmp sgt i32 %54, %55
  br i1 %56, label %57, label %66

57:                                               ; preds = %53
  %58 = load i32, ptr %5, align 4, !tbaa !5
  %59 = shl i32 %58, 1
  %60 = or i32 %59, 1
  %61 = load i32, ptr %6, align 4, !tbaa !5
  %62 = load i32, ptr %7, align 4, !tbaa !5
  %63 = call noundef i32 @_Z5queryiii(i32 noundef %60, i32 noundef %61, i32 noundef %62)
  %64 = load i32, ptr %9, align 4, !tbaa !5
  %65 = add nsw i32 %64, %63
  store i32 %65, ptr %9, align 4, !tbaa !5
  br label %66

66:                                               ; preds = %57, %53
  %67 = load i32, ptr %9, align 4, !tbaa !5
  store i32 %67, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  br label %68

68:                                               ; preds = %66, %25
  %69 = load i32, ptr %4, align 4
  ret i32 %69
}

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 = { 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}
!11 = !{!10, !6, i64 4}
!12 = !{!10, !6, i64 8}


; 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 }

@tr = external dso_local local_unnamed_addr global [200040 x %struct.Node], align 16

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(read, argmem: none, inaccessiblemem: none) uwtable
define dso_local noundef i32 @_Z5queryiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = sext i32 %0 to i64
  %5 = getelementptr inbounds [200040 x %struct.Node], ptr @tr, i64 0, i64 %4
  %6 = load i32, ptr %5, align 4, !tbaa !5
  %.not39 = icmp slt i32 %6, %1
  %.phi.trans.insert40 = getelementptr inbounds i8, ptr %5, i64 4
  %.pre41 = load i32, ptr %.phi.trans.insert40, align 4, !tbaa !10
  %.not2342 = icmp sgt i32 %.pre41, %2
  %or.cond43 = select i1 %.not39, i1 true, i1 %.not2342
  br i1 %or.cond43, label %tailrecurse._crit_edge, label %tailrecurse._crit_edge47

tailrecurse._crit_edge47:                         ; preds = %tailrecurse, %3
  %accumulator.tr.lcssa = phi i32 [ 0, %3 ], [ %20, %tailrecurse ]
  %7 = phi i64 [ %4, %3 ], [ %21, %tailrecurse ]
  %8 = getelementptr inbounds [200040 x %struct.Node], ptr @tr, i64 0, i64 %7, i32 2
  %9 = load i32, ptr %8, align 4, !tbaa !11
  br label %.loopexit

tailrecurse._crit_edge:                           ; preds = %3, %tailrecurse
  %.pre46 = phi i32 [ %.pre, %tailrecurse ], [ %.pre41, %3 ]
  %10 = phi i32 [ %23, %tailrecurse ], [ %6, %3 ]
  %.tr45 = phi i32 [ %19, %tailrecurse ], [ %0, %3 ]
  %accumulator.tr44 = phi i32 [ %20, %tailrecurse ], [ 0, %3 ]
  %11 = add nsw i32 %.pre46, %10
  %12 = ashr i32 %11, 1
  %.not24 = icmp slt i32 %12, %1
  br i1 %.not24, label %16, label %13

13:                                               ; preds = %tailrecurse._crit_edge
  %14 = shl i32 %.tr45, 1
  %15 = tail call noundef i32 @_Z5queryiii(i32 noundef %14, i32 noundef %1, i32 noundef %2)
  br label %16

16:                                               ; preds = %13, %tailrecurse._crit_edge
  %.0 = phi i32 [ %15, %13 ], [ 0, %tailrecurse._crit_edge ]
  %17 = icmp slt i32 %12, %2
  br i1 %17, label %tailrecurse, label %.loopexit

tailrecurse:                                      ; preds = %16
  %18 = shl i32 %.tr45, 1
  %19 = or disjoint i32 %18, 1
  %20 = add nsw i32 %.0, %accumulator.tr44
  %21 = sext i32 %19 to i64
  %22 = getelementptr inbounds [200040 x %struct.Node], ptr @tr, i64 0, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !5
  %.not = icmp slt i32 %23, %1
  %.phi.trans.insert = getelementptr inbounds i8, ptr %22, i64 4
  %.pre = load i32, ptr %.phi.trans.insert, align 8, !tbaa !10
  %.not23 = icmp sgt i32 %.pre, %2
  %or.cond = select i1 %.not, i1 true, i1 %.not23
  br i1 %or.cond, label %tailrecurse._crit_edge, label %tailrecurse._crit_edge47

.loopexit:                                        ; preds = %16, %tailrecurse._crit_edge47
  %accumulator.tr38 = phi i32 [ %accumulator.tr.lcssa, %tailrecurse._crit_edge47 ], [ %accumulator.tr44, %16 ]
  %.020 = phi i32 [ %9, %tailrecurse._crit_edge47 ], [ %.0, %16 ]
  %accumulator.ret.tr = add nsw i32 %.020, %accumulator.tr38
  ret i32 %accumulator.ret.tr
}

attributes #0 = { mustprogress nofree nosync nounwind willreturn memory(read, argmem: none, inaccessiblemem: none) 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 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 4}
!11 = !{!6, !7, i64 8}


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