; LLVM IR from amritansh22/Data-Structures-and-Algorithms-in-cpp :: Segment_tree.ll (Z15constructSTUtilPiiiS_i)

; 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 nounwind uwtable
declare dso_local noundef i32 @_Z6getMidii(i32 noundef, i32 noundef) #0

; 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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z15constructSTUtilPiiiS_i(ptr noundef %0, i32 noundef %1, i32 noundef %2, ptr noundef %3, i32 noundef %4) #2 {
  %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
  %12 = alloca i32, align 4
  store ptr %0, ptr %7, align 8, !tbaa !5
  store i32 %1, ptr %8, align 4, !tbaa !9
  store i32 %2, ptr %9, align 4, !tbaa !9
  store ptr %3, ptr %10, align 8, !tbaa !5
  store i32 %4, ptr %11, align 4, !tbaa !9
  %13 = load i32, ptr %8, align 4, !tbaa !9
  %14 = load i32, ptr %9, align 4, !tbaa !9
  %15 = icmp eq i32 %13, %14
  br i1 %15, label %16, label %31

16:                                               ; preds = %5
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = load i32, ptr %8, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds i32, ptr %17, i64 %19
  %21 = load i32, ptr %20, align 4, !tbaa !9
  %22 = load ptr, ptr %10, align 8, !tbaa !5
  %23 = load i32, ptr %11, align 4, !tbaa !9
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds i32, ptr %22, i64 %24
  store i32 %21, ptr %25, align 4, !tbaa !9
  %26 = load ptr, ptr %7, align 8, !tbaa !5
  %27 = load i32, ptr %8, align 4, !tbaa !9
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds i32, ptr %26, i64 %28
  %30 = load i32, ptr %29, align 4, !tbaa !9
  store i32 %30, ptr %6, align 4
  br label %62

31:                                               ; preds = %5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  %32 = load i32, ptr %8, align 4, !tbaa !9
  %33 = load i32, ptr %9, align 4, !tbaa !9
  %34 = call noundef i32 @_Z6getMidii(i32 noundef %32, i32 noundef %33)
  store i32 %34, ptr %12, align 4, !tbaa !9
  %35 = load ptr, ptr %7, align 8, !tbaa !5
  %36 = load i32, ptr %8, align 4, !tbaa !9
  %37 = load i32, ptr %12, align 4, !tbaa !9
  %38 = load ptr, ptr %10, align 8, !tbaa !5
  %39 = load i32, ptr %11, align 4, !tbaa !9
  %40 = mul nsw i32 %39, 2
  %41 = add nsw i32 %40, 1
  %42 = call noundef i32 @_Z15constructSTUtilPiiiS_i(ptr noundef %35, i32 noundef %36, i32 noundef %37, ptr noundef %38, i32 noundef %41)
  %43 = load ptr, ptr %7, align 8, !tbaa !5
  %44 = load i32, ptr %12, align 4, !tbaa !9
  %45 = add nsw i32 %44, 1
  %46 = load i32, ptr %9, align 4, !tbaa !9
  %47 = load ptr, ptr %10, align 8, !tbaa !5
  %48 = load i32, ptr %11, align 4, !tbaa !9
  %49 = mul nsw i32 %48, 2
  %50 = add nsw i32 %49, 2
  %51 = call noundef i32 @_Z15constructSTUtilPiiiS_i(ptr noundef %43, i32 noundef %45, i32 noundef %46, ptr noundef %47, i32 noundef %50)
  %52 = add nsw i32 %42, %51
  %53 = load ptr, ptr %10, align 8, !tbaa !5
  %54 = load i32, ptr %11, align 4, !tbaa !9
  %55 = sext i32 %54 to i64
  %56 = getelementptr inbounds i32, ptr %53, i64 %55
  store i32 %52, ptr %56, align 4, !tbaa !9
  %57 = load ptr, ptr %10, align 8, !tbaa !5
  %58 = load i32, ptr %11, align 4, !tbaa !9
  %59 = sext i32 %58 to i64
  %60 = getelementptr inbounds i32, ptr %57, i64 %59
  %61 = load i32, ptr %60, align 4, !tbaa !9
  store i32 %61, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  br label %62

62:                                               ; preds = %31, %16
  %63 = load i32, ptr %6, align 4
  ret i32 %63
}

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z6getMidii(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z15constructSTUtilPiiiS_i(ptr noundef %0, i32 noundef %1, i32 noundef %2, ptr noundef %3, i32 noundef %4) local_unnamed_addr #0 {
  %6 = icmp eq i32 %1, %2
  br i1 %6, label %7, label %13

7:                                                ; preds = %5
  %8 = sext i32 %1 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 ], [ %21, %13 ]
  %11 = sext i32 %4 to i64
  %12 = getelementptr inbounds i32, ptr %3, i64 %11
  store i32 %.sink, ptr %12, align 4, !tbaa !5
  ret i32 %.sink

13:                                               ; preds = %5
  %14 = tail call noundef i32 @_Z6getMidii(i32 noundef %1, i32 noundef %2)
  %15 = shl nsw i32 %4, 1
  %16 = or disjoint i32 %15, 1
  %17 = tail call noundef i32 @_Z15constructSTUtilPiiiS_i(ptr noundef %0, i32 noundef %1, i32 noundef %14, ptr noundef %3, i32 noundef %16)
  %18 = add nsw i32 %14, 1
  %19 = add nsw i32 %15, 2
  %20 = tail call noundef i32 @_Z15constructSTUtilPiiiS_i(ptr noundef %0, i32 noundef %18, i32 noundef %2, ptr noundef %3, i32 noundef %19)
  %21 = add nsw i32 %20, %17
  br label %common.ret
}

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" }

!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