; LLVM IR from amritansh22/Data-Structures-and-Algorithms-in-cpp :: lazySegmentTree.ll (Z5buildPiS_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: 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 @_ZSt3minIiERKT_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 @_Z5buildPiS_iii(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #2 {
  %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 %8, align 4, !tbaa !9
  %13 = load i32, ptr %9, 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 %9, 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 %61

25:                                               ; preds = %5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %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
  call void @_Z5buildPiS_iii(ptr noundef %30, ptr noundef %31, i32 noundef %32, i32 noundef %33, i32 noundef %35)
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  %37 = load ptr, ptr %7, align 8, !tbaa !5
  %38 = load i32, ptr %11, align 4, !tbaa !9
  %39 = add nsw i32 %38, 1
  %40 = load i32, ptr %9, align 4, !tbaa !9
  %41 = load i32, ptr %10, align 4, !tbaa !9
  %42 = mul nsw i32 2, %41
  %43 = add nsw i32 %42, 1
  call void @_Z5buildPiS_iii(ptr noundef %36, ptr noundef %37, i32 noundef %39, i32 noundef %40, i32 noundef %43)
  %44 = load ptr, ptr %7, align 8, !tbaa !5
  %45 = load i32, ptr %10, align 4, !tbaa !9
  %46 = mul nsw i32 2, %45
  %47 = sext i32 %46 to i64
  %48 = getelementptr inbounds i32, ptr %44, i64 %47
  %49 = load ptr, ptr %7, align 8, !tbaa !5
  %50 = load i32, ptr %10, align 4, !tbaa !9
  %51 = mul nsw i32 2, %50
  %52 = add nsw i32 %51, 1
  %53 = sext i32 %52 to i64
  %54 = getelementptr inbounds i32, ptr %49, i64 %53
  %55 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %48, ptr noundef nonnull align 4 dereferenceable(4) %54)
  %56 = load i32, ptr %55, align 4, !tbaa !9
  %57 = load ptr, ptr %7, align 8, !tbaa !5
  %58 = load i32, ptr %10, align 4, !tbaa !9
  %59 = sext i32 %58 to i64
  %60 = getelementptr inbounds i32, ptr %57, i64 %59
  store i32 %56, ptr %60, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  br label %61

61:                                               ; preds = %25, %15
  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"

; 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 #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z5buildPiS_iii(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #1 {
  %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 %0, i64 %8
  br label %common.ret

common.ret:                                       ; preds = %7, %13
  %.sink26 = phi ptr [ %9, %7 ], [ %23, %13 ]
  %10 = load i32, ptr %.sink26, align 4, !tbaa !5
  %11 = sext i32 %4 to i64
  %12 = getelementptr inbounds i32, ptr %1, i64 %11
  store i32 %10, 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
  tail call void @_Z5buildPiS_iii(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %15, i32 noundef %16)
  %17 = add nsw i32 %15, 1
  %18 = or disjoint i32 %16, 1
  tail call void @_Z5buildPiS_iii(ptr noundef %0, ptr noundef %1, i32 noundef %17, i32 noundef %3, i32 noundef %18)
  %19 = sext i32 %16 to i64
  %20 = getelementptr inbounds i32, ptr %1, i64 %19
  %21 = sext i32 %18 to i64
  %22 = getelementptr inbounds i32, ptr %1, i64 %21
  %23 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %20, ptr noundef nonnull align 4 dereferenceable(4) %22)
  br label %common.ret
}

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,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass