; LLVM IR from lzyrapx/Competitive-Programming :: LibreOJ/106（Splay）（104基础上加区间）.ll (Z5Buildiii)

; 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"

@qc = external dso_local global i32, align 4
@root = external dso_local global [200040 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 uwtable
declare dso_local void @_Z7InsertYRii(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5Buildiii(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
  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
  store i32 1000000010, ptr @qc, align 4, !tbaa !5
  %8 = load i32, ptr %4, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = getelementptr inbounds [200040 x i32], ptr @root, i64 0, i64 %9
  call void @_Z7InsertYRii(ptr noundef nonnull align 4 dereferenceable(4) %10, i32 noundef 0)
  store i32 -1000000010, ptr @qc, align 4, !tbaa !5
  %11 = load i32, ptr %4, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = getelementptr inbounds [200040 x i32], ptr @root, i64 0, i64 %12
  call void @_Z7InsertYRii(ptr noundef nonnull align 4 dereferenceable(4) %13, i32 noundef 0)
  %14 = load i32, ptr %5, align 4, !tbaa !5
  %15 = load i32, ptr %6, align 4, !tbaa !5
  %16 = icmp eq i32 %14, %15
  br i1 %16, label %17, label %18

17:                                               ; preds = %3
  br label %33

18:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %19 = load i32, ptr %5, align 4, !tbaa !5
  %20 = load i32, ptr %6, align 4, !tbaa !5
  %21 = add nsw i32 %19, %20
  %22 = ashr i32 %21, 1
  store i32 %22, ptr %7, align 4, !tbaa !5
  %23 = load i32, ptr %4, align 4, !tbaa !5
  %24 = shl i32 %23, 1
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = load i32, ptr %7, align 4, !tbaa !5
  call void @_Z5Buildiii(i32 noundef %24, i32 noundef %25, i32 noundef %26)
  %27 = load i32, ptr %4, align 4, !tbaa !5
  %28 = shl i32 %27, 1
  %29 = or i32 %28, 1
  %30 = load i32, ptr %7, align 4, !tbaa !5
  %31 = add nsw i32 %30, 1
  %32 = load i32, ptr %6, align 4, !tbaa !5
  call void @_Z5Buildiii(i32 noundef %29, i32 noundef %31, i32 noundef %32)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  br label %33

33:                                               ; preds = %18, %17
  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 = { 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"}


; 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"

@qc = external dso_local local_unnamed_addr global i32, align 4
@root = external dso_local global [200040 x i32], align 16

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z7InsertYRii(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5Buildiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  store i32 1000000010, ptr @qc, align 4, !tbaa !5
  %4 = sext i32 %0 to i64
  %5 = getelementptr inbounds [200040 x i32], ptr @root, i64 0, i64 %4
  tail call void @_Z7InsertYRii(ptr noundef nonnull align 4 dereferenceable(4) %5, i32 noundef 0)
  store i32 -1000000010, ptr @qc, align 4, !tbaa !5
  tail call void @_Z7InsertYRii(ptr noundef nonnull align 4 dereferenceable(4) %5, i32 noundef 0)
  %6 = icmp eq i32 %1, %2
  br i1 %6, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse:                                      ; preds = %3, %tailrecurse
  %.tr1316 = phi i32 [ %11, %tailrecurse ], [ %1, %3 ]
  %.tr15 = phi i32 [ %10, %tailrecurse ], [ %0, %3 ]
  %7 = add nsw i32 %.tr1316, %2
  %8 = ashr i32 %7, 1
  %9 = shl i32 %.tr15, 1
  tail call void @_Z5Buildiii(i32 noundef %9, i32 noundef %.tr1316, i32 noundef %8)
  %10 = or disjoint i32 %9, 1
  %11 = add nsw i32 %8, 1
  store i32 1000000010, ptr @qc, align 4, !tbaa !5
  %12 = sext i32 %10 to i64
  %13 = getelementptr inbounds [200040 x i32], ptr @root, i64 0, i64 %12
  tail call void @_Z7InsertYRii(ptr noundef nonnull align 4 dereferenceable(4) %13, i32 noundef 0)
  store i32 -1000000010, ptr @qc, align 4, !tbaa !5
  tail call void @_Z7InsertYRii(ptr noundef nonnull align 4 dereferenceable(4) %13, i32 noundef 0)
  %14 = icmp eq i32 %11, %2
  br i1 %14, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse._crit_edge:                           ; preds = %tailrecurse, %3
  ret void
}

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, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass