; LLVM IR from codemistic/Data-Structures-and-Algorithms :: CPP/Segment Tree/Sum query.ll (Z13build_segtreeRSt6vectorIxSaIxEExxxS2_)

; 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"

; Function Attrs: mustprogress uwtable
define dso_local void @_Z13build_segtreeRSt6vectorIxSaIxEExxxS2_(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %1, i64 noundef %2, i64 noundef %3, ptr noundef nonnull align 8 dereferenceable(24) %4) #0 {
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store i64 %1, ptr %7, align 8, !tbaa !9
  store i64 %2, ptr %8, align 8, !tbaa !9
  store i64 %3, ptr %9, align 8, !tbaa !9
  store ptr %4, ptr %10, align 8, !tbaa !5
  %12 = load i64, ptr %8, align 8, !tbaa !9
  %13 = load i64, ptr %9, align 8, !tbaa !9
  %14 = icmp eq i64 %12, %13
  br i1 %14, label %15, label %23

15:                                               ; preds = %5
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = load i64, ptr %8, align 8, !tbaa !9
  %18 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %16, i64 noundef %17) #3
  %19 = load i64, ptr %18, align 8, !tbaa !9
  %20 = load ptr, ptr %10, align 8, !tbaa !5
  %21 = load i64, ptr %7, align 8, !tbaa !9
  %22 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %20, i64 noundef %21) #3
  store i64 %19, ptr %22, align 8, !tbaa !9
  br label %60

23:                                               ; preds = %5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %24 = load i64, ptr %8, align 8, !tbaa !9
  %25 = load i64, ptr %9, align 8, !tbaa !9
  %26 = add nsw i64 %24, %25
  %27 = sdiv i64 %26, 2
  %28 = trunc i64 %27 to i32
  store i32 %28, ptr %11, align 4, !tbaa !11
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  %30 = load i64, ptr %7, align 8, !tbaa !9
  %31 = mul nsw i64 2, %30
  %32 = load i64, ptr %8, align 8, !tbaa !9
  %33 = load i32, ptr %11, align 4, !tbaa !11
  %34 = sext i32 %33 to i64
  %35 = load ptr, ptr %10, align 8, !tbaa !5
  call void @_Z13build_segtreeRSt6vectorIxSaIxEExxxS2_(ptr noundef nonnull align 8 dereferenceable(24) %29, i64 noundef %31, i64 noundef %32, i64 noundef %34, ptr noundef nonnull align 8 dereferenceable(24) %35)
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  %37 = load i64, ptr %7, align 8, !tbaa !9
  %38 = mul nsw i64 2, %37
  %39 = add nsw i64 %38, 1
  %40 = load i32, ptr %11, align 4, !tbaa !11
  %41 = add nsw i32 %40, 1
  %42 = sext i32 %41 to i64
  %43 = load i64, ptr %9, align 8, !tbaa !9
  %44 = load ptr, ptr %10, align 8, !tbaa !5
  call void @_Z13build_segtreeRSt6vectorIxSaIxEExxxS2_(ptr noundef nonnull align 8 dereferenceable(24) %36, i64 noundef %39, i64 noundef %42, i64 noundef %43, ptr noundef nonnull align 8 dereferenceable(24) %44)
  %45 = load ptr, ptr %10, align 8, !tbaa !5
  %46 = load i64, ptr %7, align 8, !tbaa !9
  %47 = mul nsw i64 2, %46
  %48 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %45, i64 noundef %47) #3
  %49 = load i64, ptr %48, align 8, !tbaa !9
  %50 = load ptr, ptr %10, align 8, !tbaa !5
  %51 = load i64, ptr %7, align 8, !tbaa !9
  %52 = mul nsw i64 2, %51
  %53 = add nsw i64 %52, 1
  %54 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %50, i64 noundef %53) #3
  %55 = load i64, ptr %54, align 8, !tbaa !9
  %56 = add nsw i64 %49, %55
  %57 = load ptr, ptr %10, align 8, !tbaa !5
  %58 = load i64, ptr %7, align 8, !tbaa !9
  %59 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %57, i64 noundef %58) #3
  store i64 %56, ptr %59, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  br label %60

60:                                               ; preds = %23, %15
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

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

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

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" }
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 = { nocallback nofree nosync 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}


; 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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z13build_segtreeRSt6vectorIxSaIxEExxxS2_(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %1, i64 noundef %2, i64 noundef %3, ptr noundef nonnull align 8 dereferenceable(24) %4) local_unnamed_addr #0 {
  %6 = icmp eq i64 %2, %3
  br i1 %6, label %7, label %11

7:                                                ; preds = %5
  %8 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %2) #1
  %9 = load i64, ptr %8, align 8, !tbaa !5
  br label %common.ret

common.ret:                                       ; preds = %7, %11
  %.sink = phi i64 [ %9, %7 ], [ %22, %11 ]
  %10 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %1) #1
  store i64 %.sink, ptr %10, align 8, !tbaa !5
  ret void

11:                                               ; preds = %5
  %12 = add nsw i64 %3, %2
  %13 = sdiv i64 %12, 2
  %14 = shl nsw i64 %1, 1
  %sext = shl i64 %13, 32
  %15 = ashr exact i64 %sext, 32
  tail call void @_Z13build_segtreeRSt6vectorIxSaIxEExxxS2_(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %14, i64 noundef %2, i64 noundef %15, ptr noundef nonnull align 8 dereferenceable(24) %4)
  %16 = or disjoint i64 %14, 1
  %sext24 = add i64 %sext, 4294967296
  %17 = ashr exact i64 %sext24, 32
  tail call void @_Z13build_segtreeRSt6vectorIxSaIxEExxxS2_(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %16, i64 noundef %17, i64 noundef %3, ptr noundef nonnull align 8 dereferenceable(24) %4)
  %18 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %14) #1
  %19 = load i64, ptr %18, align 8, !tbaa !5
  %20 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %16) #1
  %21 = load i64, ptr %20, align 8, !tbaa !5
  %22 = add nsw i64 %21, %19
  br label %common.ret
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 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 = { 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass