; LLVM IR from Thre4dripper/DSA-Programs :: 18. Hashing/Open Hashing/nonLinearChaining.ll (Z9SearchBSTiP4Node)

; 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"

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

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z9SearchBSTiP4Node(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i1, align 1
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  %6 = load ptr, ptr %5, align 8, !tbaa !9
  %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 %39

9:                                                ; preds = %2
  %10 = load ptr, ptr %5, align 8, !tbaa !9
  %11 = getelementptr inbounds %struct.Node, ptr %10, i32 0, i32 1
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %20

14:                                               ; preds = %9
  %15 = load i32, ptr %4, align 4, !tbaa !5
  %16 = load ptr, ptr %5, align 8, !tbaa !9
  %17 = getelementptr inbounds %struct.Node, ptr %16, i32 0, i32 1
  %18 = load ptr, ptr %17, align 8, !tbaa !11
  %19 = call noundef zeroext i1 @_Z9SearchBSTiP4Node(i32 noundef %15, ptr noundef %18)
  store i1 %19, ptr %3, align 1
  br label %39

20:                                               ; preds = %9
  %21 = load ptr, ptr %5, align 8, !tbaa !9
  %22 = getelementptr inbounds %struct.Node, ptr %21, i32 0, i32 0
  %23 = load i32, ptr %22, align 8, !tbaa !13
  %24 = load i32, ptr %4, align 4, !tbaa !5
  %25 = icmp eq i32 %23, %24
  br i1 %25, label %26, label %27

26:                                               ; preds = %20
  store i1 true, ptr %3, align 1
  br label %39

27:                                               ; preds = %20
  %28 = load ptr, ptr %5, align 8, !tbaa !9
  %29 = getelementptr inbounds %struct.Node, ptr %28, i32 0, i32 2
  %30 = load ptr, ptr %29, align 8, !tbaa !14
  %31 = icmp ne ptr %30, null
  br i1 %31, label %32, label %38

32:                                               ; preds = %27
  %33 = load i32, ptr %4, align 4, !tbaa !5
  %34 = load ptr, ptr %5, align 8, !tbaa !9
  %35 = getelementptr inbounds %struct.Node, ptr %34, i32 0, i32 2
  %36 = load ptr, ptr %35, align 8, !tbaa !14
  %37 = call noundef zeroext i1 @_Z9SearchBSTiP4Node(i32 noundef %33, ptr noundef %36)
  store i1 %37, ptr %3, align 1
  br label %39

38:                                               ; preds = %27
  store i1 false, ptr %3, align 1
  br label %39

39:                                               ; preds = %38, %32, %26, %14, %8
  %40 = load i1, ptr %3, align 1
  ret i1 %40
}

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 = !{!"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}
!11 = !{!12, !10, i64 8}
!12 = !{!"_ZTS4Node", !6, i64 0, !10, i64 8, !10, i64 16}
!13 = !{!12, !6, i64 0}
!14 = !{!12, !10, 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 norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local noundef zeroext i1 @_Z9SearchBSTiP4Node(i32 noundef %0, ptr noundef readonly %1) local_unnamed_addr #0 {
  %3 = icmp eq ptr %1, null
  br i1 %3, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %.lr.ph.backedge
  %.tr1415 = phi ptr [ %.tr1415.be, %.lr.ph.backedge ], [ %1, %2 ]
  %4 = getelementptr inbounds i8, ptr %.tr1415, i64 8
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %.not = icmp eq ptr %5, null
  br i1 %.not, label %6, label %.lr.ph.backedge

.lr.ph.backedge:                                  ; preds = %.lr.ph, %9
  %.tr1415.be = phi ptr [ %5, %.lr.ph ], [ %11, %9 ]
  br label %.lr.ph

6:                                                ; preds = %.lr.ph
  %7 = load i32, ptr %.tr1415, align 8, !tbaa !11
  %8 = icmp eq i32 %7, %0
  br i1 %8, label %._crit_edge, label %9

9:                                                ; preds = %6
  %10 = getelementptr inbounds i8, ptr %.tr1415, i64 16
  %11 = load ptr, ptr %10, align 8, !tbaa !12
  %.not13 = icmp eq ptr %11, null
  br i1 %.not13, label %._crit_edge, label %.lr.ph.backedge

._crit_edge:                                      ; preds = %6, %9, %2
  %.0 = phi i1 [ false, %2 ], [ %8, %9 ], [ %8, %6 ]
  ret i1 %.0
}

attributes #0 = { mustprogress nofree norecurse 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, !10, i64 8}
!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, !7, i64 0}
!12 = !{!6, !10, i64 16}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass