; LLVM IR from HarshCasper/NeoAlgo :: C-Plus-Plus/other/Lazy_Propagation_in_Segment_Tree.ll (Z13constructHelpPiiii)

; 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"

@tree = external dso_local global [1000 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #1

; 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 void @_Z13constructHelpPiiii(ptr noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) #2 {
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  store i32 %3, ptr %8, align 4, !tbaa !9
  %10 = load i32, ptr %6, align 4, !tbaa !9
  %11 = load i32, ptr %7, align 4, !tbaa !9
  %12 = icmp sgt i32 %10, %11
  br i1 %12, label %13, label %14

13:                                               ; preds = %4
  br label %60

14:                                               ; preds = %4
  %15 = load i32, ptr %6, align 4, !tbaa !9
  %16 = load i32, ptr %7, align 4, !tbaa !9
  %17 = icmp eq i32 %15, %16
  br i1 %17, label %18, label %27

18:                                               ; preds = %14
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds i32, ptr %19, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !9
  %24 = load i32, ptr %8, align 4, !tbaa !9
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [1000 x i32], ptr @tree, i64 0, i64 %25
  store i32 %23, ptr %26, align 4, !tbaa !9
  br label %60

27:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %28 = load i32, ptr %6, align 4, !tbaa !9
  %29 = load i32, ptr %7, align 4, !tbaa !9
  %30 = add nsw i32 %28, %29
  %31 = sdiv i32 %30, 2
  store i32 %31, ptr %9, align 4, !tbaa !9
  %32 = load ptr, ptr %5, align 8, !tbaa !5
  %33 = load i32, ptr %6, align 4, !tbaa !9
  %34 = load i32, ptr %9, align 4, !tbaa !9
  %35 = load i32, ptr %8, align 4, !tbaa !9
  %36 = mul nsw i32 %35, 2
  %37 = add nsw i32 %36, 1
  call void @_Z13constructHelpPiiii(ptr noundef %32, i32 noundef %33, i32 noundef %34, i32 noundef %37)
  %38 = load ptr, ptr %5, align 8, !tbaa !5
  %39 = load i32, ptr %9, align 4, !tbaa !9
  %40 = add nsw i32 %39, 1
  %41 = load i32, ptr %7, align 4, !tbaa !9
  %42 = load i32, ptr %8, align 4, !tbaa !9
  %43 = mul nsw i32 %42, 2
  %44 = add nsw i32 %43, 2
  call void @_Z13constructHelpPiiii(ptr noundef %38, i32 noundef %40, i32 noundef %41, i32 noundef %44)
  %45 = load i32, ptr %8, align 4, !tbaa !9
  %46 = mul nsw i32 %45, 2
  %47 = add nsw i32 %46, 1
  %48 = sext i32 %47 to i64
  %49 = getelementptr inbounds [1000 x i32], ptr @tree, i64 0, i64 %48
  %50 = load i32, ptr %8, align 4, !tbaa !9
  %51 = mul nsw i32 %50, 2
  %52 = add nsw i32 %51, 2
  %53 = sext i32 %52 to i64
  %54 = getelementptr inbounds [1000 x i32], ptr @tree, i64 0, i64 %53
  %55 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %49, ptr noundef nonnull align 4 dereferenceable(4) %54)
  %56 = load i32, ptr %55, align 4, !tbaa !9
  %57 = load i32, ptr %8, align 4, !tbaa !9
  %58 = sext i32 %57 to i64
  %59 = getelementptr inbounds [1000 x i32], ptr @tree, i64 0, i64 %58
  store i32 %56, ptr %59, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  br label %60

60:                                               ; preds = %27, %18, %13
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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 #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 = !{!"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"

@tree = external dso_local global [1000 x i32], align 16

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z13constructHelpPiiii(ptr noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) local_unnamed_addr #1 {
  %5 = icmp sgt i32 %1, %2
  br i1 %5, label %common.ret, label %6

6:                                                ; preds = %4
  %7 = icmp eq i32 %1, %2
  br i1 %7, label %8, label %14

8:                                                ; preds = %6
  %9 = sext i32 %1 to i64
  %10 = getelementptr inbounds i32, ptr %0, i64 %9
  br label %common.ret.sink.split

common.ret.sink.split:                            ; preds = %14, %8
  %.sink22 = phi ptr [ %10, %8 ], [ %25, %14 ]
  %11 = load i32, ptr %.sink22, align 4, !tbaa !5
  %12 = sext i32 %3 to i64
  %13 = getelementptr inbounds [1000 x i32], ptr @tree, i64 0, i64 %12
  store i32 %11, ptr %13, align 4, !tbaa !5
  br label %common.ret

common.ret:                                       ; preds = %common.ret.sink.split, %4
  ret void

14:                                               ; preds = %6
  %15 = add nsw i32 %2, %1
  %16 = sdiv i32 %15, 2
  %17 = shl nsw i32 %3, 1
  %18 = or disjoint i32 %17, 1
  tail call void @_Z13constructHelpPiiii(ptr noundef %0, i32 noundef %1, i32 noundef %16, i32 noundef %18)
  %19 = add nsw i32 %16, 1
  %20 = add nsw i32 %17, 2
  tail call void @_Z13constructHelpPiiii(ptr noundef %0, i32 noundef %19, i32 noundef %2, i32 noundef %20)
  %21 = sext i32 %18 to i64
  %22 = getelementptr inbounds [1000 x i32], ptr @tree, i64 0, i64 %21
  %23 = sext i32 %20 to i64
  %24 = getelementptr inbounds [1000 x i32], ptr @tree, i64 0, i64 %23
  %25 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %22, ptr noundef nonnull align 4 dereferenceable(4) %24)
  br label %common.ret.sink.split
}

attributes #0 = { 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 #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" }

!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,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass