; LLVM IR from VAR-solutions/Algorithms :: Tree/segment tree/cpp/segmentTree.ll (Z13constructTreePiS_iii)

; 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 @_Z13constructTreePiS_iii(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #0 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !9
  store i32 %3, ptr %9, align 4, !tbaa !9
  store i32 %4, ptr %10, align 4, !tbaa !9
  %12 = load i32, ptr %9, align 4, !tbaa !9
  %13 = load i32, ptr %8, align 4, !tbaa !9
  %14 = icmp eq i32 %12, %13
  br i1 %14, label %15, label %25

15:                                               ; preds = %5
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = load i32, ptr %8, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds i32, ptr %16, i64 %18
  %20 = load i32, ptr %19, align 4, !tbaa !9
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  %22 = load i32, ptr %10, align 4, !tbaa !9
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds i32, ptr %21, i64 %23
  store i32 %20, ptr %24, align 4, !tbaa !9
  br label %64

25:                                               ; preds = %5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #2
  %26 = load i32, ptr %8, align 4, !tbaa !9
  %27 = load i32, ptr %9, align 4, !tbaa !9
  %28 = add nsw i32 %26, %27
  %29 = sdiv i32 %28, 2
  store i32 %29, ptr %11, align 4, !tbaa !9
  %30 = load ptr, ptr %6, align 8, !tbaa !5
  %31 = load ptr, ptr %7, align 8, !tbaa !5
  %32 = load i32, ptr %8, align 4, !tbaa !9
  %33 = load i32, ptr %11, align 4, !tbaa !9
  %34 = load i32, ptr %10, align 4, !tbaa !9
  %35 = mul nsw i32 2, %34
  %36 = add nsw i32 %35, 1
  call void @_Z13constructTreePiS_iii(ptr noundef %30, ptr noundef %31, i32 noundef %32, i32 noundef %33, i32 noundef %36)
  %37 = load ptr, ptr %6, align 8, !tbaa !5
  %38 = load ptr, ptr %7, align 8, !tbaa !5
  %39 = load i32, ptr %11, align 4, !tbaa !9
  %40 = add nsw i32 %39, 1
  %41 = load i32, ptr %9, align 4, !tbaa !9
  %42 = load i32, ptr %10, align 4, !tbaa !9
  %43 = mul nsw i32 2, %42
  %44 = add nsw i32 %43, 2
  call void @_Z13constructTreePiS_iii(ptr noundef %37, ptr noundef %38, i32 noundef %40, i32 noundef %41, i32 noundef %44)
  %45 = load ptr, ptr %7, align 8, !tbaa !5
  %46 = load i32, ptr %10, align 4, !tbaa !9
  %47 = mul nsw i32 2, %46
  %48 = add nsw i32 %47, 1
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds i32, ptr %45, i64 %49
  %51 = load i32, ptr %50, align 4, !tbaa !9
  %52 = load ptr, ptr %7, align 8, !tbaa !5
  %53 = load i32, ptr %10, align 4, !tbaa !9
  %54 = mul nsw i32 2, %53
  %55 = add nsw i32 %54, 2
  %56 = sext i32 %55 to i64
  %57 = getelementptr inbounds i32, ptr %52, i64 %56
  %58 = load i32, ptr %57, align 4, !tbaa !9
  %59 = and i32 %51, %58
  %60 = load ptr, ptr %7, align 8, !tbaa !5
  %61 = load i32, ptr %10, align 4, !tbaa !9
  %62 = sext i32 %61 to i64
  %63 = getelementptr inbounds i32, ptr %60, i64 %62
  store i32 %59, ptr %63, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #2
  br label %64

64:                                               ; preds = %25, %15
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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

; Function Attrs: mustprogress nofree nosync nounwind memory(argmem: readwrite) uwtable
define dso_local void @_Z13constructTreePiS_iii(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #0 {
  %6 = icmp eq i32 %3, %2
  br i1 %6, label %7, label %13

7:                                                ; preds = %5
  %8 = sext i32 %3 to i64
  %9 = getelementptr inbounds i32, ptr %0, i64 %8
  %10 = load i32, ptr %9, align 4, !tbaa !5
  br label %common.ret

common.ret:                                       ; preds = %7, %13
  %.sink = phi i32 [ %10, %7 ], [ %26, %13 ]
  %11 = sext i32 %4 to i64
  %12 = getelementptr inbounds i32, ptr %1, i64 %11
  store i32 %.sink, ptr %12, align 4, !tbaa !5
  ret void

13:                                               ; preds = %5
  %14 = add nsw i32 %3, %2
  %15 = sdiv i32 %14, 2
  %16 = shl nsw i32 %4, 1
  %17 = or disjoint i32 %16, 1
  tail call void @_Z13constructTreePiS_iii(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %15, i32 noundef %17)
  %18 = add nsw i32 %15, 1
  %19 = add nsw i32 %16, 2
  tail call void @_Z13constructTreePiS_iii(ptr noundef %0, ptr noundef %1, i32 noundef %18, i32 noundef %3, i32 noundef %19)
  %20 = sext i32 %17 to i64
  %21 = getelementptr inbounds i32, ptr %1, i64 %20
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %23 = sext i32 %19 to i64
  %24 = getelementptr inbounds i32, ptr %1, i64 %23
  %25 = load i32, ptr %24, align 4, !tbaa !5
  %26 = and i32 %25, %22
  br label %common.ret
}

attributes #0 = { mustprogress nofree nosync nounwind memory(argmem: readwrite) 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,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass