; LLVM IR from CodersForLife/Data-Structures-Algorithms :: Segment Tree/SegmentTree.ll (Z5buildiPiiiS_)

; 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: 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 @_Z5buildiPiiiS_(i32 noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, ptr noundef %4) #1 {
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store i32 %0, ptr %6, align 4, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !9
  store i32 %2, ptr %8, align 4, !tbaa !5
  store i32 %3, ptr %9, align 4, !tbaa !5
  store ptr %4, ptr %10, align 8, !tbaa !9
  %12 = load i32, ptr %8, align 4, !tbaa !5
  %13 = load i32, ptr %9, align 4, !tbaa !5
  %14 = icmp eq i32 %12, %13
  br i1 %14, label %15, label %25

15:                                               ; preds = %5
  %16 = load ptr, ptr %10, align 8, !tbaa !9
  %17 = load i32, ptr %8, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds i32, ptr %16, i64 %18
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = load ptr, ptr %7, align 8, !tbaa !9
  %22 = load i32, ptr %6, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds i32, ptr %21, i64 %23
  store i32 %20, ptr %24, align 4, !tbaa !5
  br label %65

25:                                               ; preds = %5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %26 = load i32, ptr %8, align 4, !tbaa !5
  %27 = load i32, ptr %9, align 4, !tbaa !5
  %28 = add nsw i32 %26, %27
  %29 = sdiv i32 %28, 2
  store i32 %29, ptr %11, align 4, !tbaa !5
  %30 = load i32, ptr %6, align 4, !tbaa !5
  %31 = mul nsw i32 2, %30
  %32 = add nsw i32 %31, 1
  %33 = load ptr, ptr %7, align 8, !tbaa !9
  %34 = load i32, ptr %8, align 4, !tbaa !5
  %35 = load i32, ptr %11, align 4, !tbaa !5
  %36 = load ptr, ptr %10, align 8, !tbaa !9
  %37 = call noundef i32 @_Z5buildiPiiiS_(i32 noundef %32, ptr noundef %33, i32 noundef %34, i32 noundef %35, ptr noundef %36)
  %38 = load i32, ptr %6, align 4, !tbaa !5
  %39 = mul nsw i32 2, %38
  %40 = add nsw i32 %39, 2
  %41 = load ptr, ptr %7, align 8, !tbaa !9
  %42 = load i32, ptr %11, align 4, !tbaa !5
  %43 = add nsw i32 %42, 1
  %44 = load i32, ptr %9, align 4, !tbaa !5
  %45 = load ptr, ptr %10, align 8, !tbaa !9
  %46 = call noundef i32 @_Z5buildiPiiiS_(i32 noundef %40, ptr noundef %41, i32 noundef %43, i32 noundef %44, ptr noundef %45)
  %47 = load ptr, ptr %7, align 8, !tbaa !9
  %48 = load i32, ptr %6, align 4, !tbaa !5
  %49 = mul nsw i32 2, %48
  %50 = add nsw i32 %49, 1
  %51 = sext i32 %50 to i64
  %52 = getelementptr inbounds i32, ptr %47, i64 %51
  %53 = load ptr, ptr %7, align 8, !tbaa !9
  %54 = load i32, ptr %6, align 4, !tbaa !5
  %55 = mul nsw i32 2, %54
  %56 = add nsw i32 %55, 2
  %57 = sext i32 %56 to i64
  %58 = getelementptr inbounds i32, ptr %53, i64 %57
  %59 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %52, ptr noundef nonnull align 4 dereferenceable(4) %58)
  %60 = load i32, ptr %59, align 4, !tbaa !5
  %61 = load ptr, ptr %7, align 8, !tbaa !9
  %62 = load i32, ptr %6, align 4, !tbaa !5
  %63 = sext i32 %62 to i64
  %64 = getelementptr inbounds i32, ptr %61, i64 %63
  store i32 %60, ptr %64, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  br label %65

65:                                               ; preds = %25, %15
  ret i32 0
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #2

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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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 noundef i32 @_Z5buildiPiiiS_(i32 noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, ptr noundef %4) local_unnamed_addr #0 {
  %6 = icmp eq i32 %2, %3
  br i1 %6, label %7, label %13

7:                                                ; preds = %5
  %8 = sext i32 %2 to i64
  %9 = getelementptr inbounds i32, ptr %4, i64 %8
  br label %common.ret

common.ret:                                       ; preds = %7, %13
  %.sink26 = phi ptr [ %9, %7 ], [ %26, %13 ]
  %10 = load i32, ptr %.sink26, align 4, !tbaa !5
  %11 = sext i32 %0 to i64
  %12 = getelementptr inbounds i32, ptr %1, i64 %11
  store i32 %10, ptr %12, align 4, !tbaa !5
  ret i32 0

13:                                               ; preds = %5
  %14 = add nsw i32 %3, %2
  %15 = sdiv i32 %14, 2
  %16 = shl nsw i32 %0, 1
  %17 = or disjoint i32 %16, 1
  %18 = tail call noundef i32 @_Z5buildiPiiiS_(i32 noundef %17, ptr noundef %1, i32 noundef %2, i32 noundef %15, ptr noundef %4)
  %19 = add nsw i32 %16, 2
  %20 = add nsw i32 %15, 1
  %21 = tail call noundef i32 @_Z5buildiPiiiS_(i32 noundef %19, ptr noundef %1, i32 noundef %20, i32 noundef %3, ptr noundef %4)
  %22 = sext i32 %17 to i64
  %23 = getelementptr inbounds i32, ptr %1, i64 %22
  %24 = sext i32 %19 to i64
  %25 = getelementptr inbounds i32, ptr %1, i64 %24
  %26 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %23, ptr noundef nonnull align 4 dereferenceable(4) %25)
  br label %common.ret
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1

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 = { 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" }

!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