; LLVM IR from Algo-Phantoms/Algo-Tree :: Code/C++/Root_to_leaf_path_with_given_sum.ll (Z12has_path_sumP4Nodei)

; 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"

%class.Node = type { i32, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z12has_path_sumP4Nodei(ptr noundef %0, i32 noundef %1) #0 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %8, label %9

8:                                                ; preds = %2
  store i1 false, ptr %3, align 1
  br label %48

9:                                                ; preds = %2
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %class.Node, ptr %10, i32 0, i32 0
  %12 = load i32, ptr %11, align 8, !tbaa !11
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = icmp eq i32 %12, %13
  br i1 %14, label %15, label %26

15:                                               ; preds = %9
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %class.Node, ptr %16, i32 0, i32 1
  %18 = load ptr, ptr %17, align 8, !tbaa !13
  %19 = icmp eq ptr %18, null
  br i1 %19, label %20, label %26

20:                                               ; preds = %15
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds %class.Node, ptr %21, i32 0, i32 2
  %23 = load ptr, ptr %22, align 8, !tbaa !14
  %24 = icmp eq ptr %23, null
  br i1 %24, label %25, label %26

25:                                               ; preds = %20
  store i1 true, ptr %3, align 1
  br label %48

26:                                               ; preds = %20, %15, %9
  %27 = load ptr, ptr %4, align 8, !tbaa !5
  %28 = getelementptr inbounds %class.Node, ptr %27, i32 0, i32 1
  %29 = load ptr, ptr %28, align 8, !tbaa !13
  %30 = load i32, ptr %5, align 4, !tbaa !9
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = getelementptr inbounds %class.Node, ptr %31, i32 0, i32 0
  %33 = load i32, ptr %32, align 8, !tbaa !11
  %34 = sub nsw i32 %30, %33
  %35 = call noundef zeroext i1 @_Z12has_path_sumP4Nodei(ptr noundef %29, i32 noundef %34)
  br i1 %35, label %46, label %36

36:                                               ; preds = %26
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  %38 = getelementptr inbounds %class.Node, ptr %37, i32 0, i32 2
  %39 = load ptr, ptr %38, align 8, !tbaa !14
  %40 = load i32, ptr %5, align 4, !tbaa !9
  %41 = load ptr, ptr %4, align 8, !tbaa !5
  %42 = getelementptr inbounds %class.Node, ptr %41, i32 0, i32 0
  %43 = load i32, ptr %42, align 8, !tbaa !11
  %44 = sub nsw i32 %40, %43
  %45 = call noundef zeroext i1 @_Z12has_path_sumP4Nodei(ptr noundef %39, i32 noundef %44)
  br label %46

46:                                               ; preds = %36, %26
  %47 = phi i1 [ true, %26 ], [ %45, %36 ]
  store i1 %47, ptr %3, align 1
  br label %48

48:                                               ; preds = %46, %25, %8
  %49 = load i1, ptr %3, align 1
  ret i1 %49
}

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" }

!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}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS4Node", !10, i64 0, !6, i64 8, !6, i64 16}
!13 = !{!12, !6, i64 8}
!14 = !{!12, !6, i64 16}


; 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 willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local noundef zeroext i1 @_Z12has_path_sumP4Nodei(ptr noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = icmp eq ptr %0, null
  br i1 %3, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %tailrecurse
  %.tr1214 = phi i32 [ %14, %tailrecurse ], [ %1, %2 ]
  %.tr13 = phi ptr [ %17, %tailrecurse ], [ %0, %2 ]
  %4 = load i32, ptr %.tr13, align 8, !tbaa !5
  %5 = icmp eq i32 %4, %.tr1214
  %6 = getelementptr inbounds i8, ptr %.tr13, i64 8
  %7 = load ptr, ptr %6, align 8, !tbaa !11
  %8 = icmp eq ptr %7, null
  %or.cond = select i1 %5, i1 %8, i1 false
  br i1 %or.cond, label %9, label %.lr.ph._crit_edge

9:                                                ; preds = %.lr.ph
  %10 = getelementptr inbounds i8, ptr %.tr13, i64 16
  %11 = load ptr, ptr %10, align 8, !tbaa !12
  %12 = icmp eq ptr %11, null
  br i1 %12, label %._crit_edge, label %.lr.ph._crit_edge

.lr.ph._crit_edge:                                ; preds = %.lr.ph, %9
  %13 = phi ptr [ null, %9 ], [ %7, %.lr.ph ]
  %14 = sub nsw i32 %.tr1214, %4
  %15 = tail call noundef zeroext i1 @_Z12has_path_sumP4Nodei(ptr noundef %13, i32 noundef %14)
  br i1 %15, label %._crit_edge, label %tailrecurse

tailrecurse:                                      ; preds = %.lr.ph._crit_edge
  %16 = getelementptr inbounds i8, ptr %.tr13, i64 16
  %17 = load ptr, ptr %16, align 8, !tbaa !12
  %18 = icmp eq ptr %17, null
  br i1 %18, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %tailrecurse, %9, %.lr.ph._crit_edge, %2
  %.0 = phi i1 [ false, %2 ], [ true, %.lr.ph._crit_edge ], [ true, %9 ], [ false, %tailrecurse ]
  ret i1 %.0
}

attributes #0 = { mustprogress nofree nosync nounwind willreturn memory(read, inaccessiblemem: none) 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, !7, i64 0}
!6 = !{!"_ZTS4Node", !7, i64 0, !10, i64 8, !10, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!6, !10, i64 16}


; Effective O3 passes: BDCEPass,EarlyCSEPass,GVNPass,GlobalOptPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass