; LLVM IR from Thre4dripper/DSA-Programs :: 18. Hashing/Open Hashing/LinearChaining.ll (Z6InsertiPP4Node)

; 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 }

; 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 nounwind uwtable
declare dso_local noundef i32 @_Z2hxi(i32 noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z6SearchiPP4Node(i32 noundef, ptr noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6InsertiPP4Node(i32 noundef %0, ptr noundef %1) #2 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !9
  %8 = load i32, ptr %3, align 4, !tbaa !5
  %9 = load ptr, ptr %4, align 8, !tbaa !9
  %10 = call noundef zeroext i1 @_Z6SearchiPP4Node(i32 noundef %8, ptr noundef %9)
  %11 = zext i1 %10 to i32
  %12 = icmp eq i32 %11, 1
  br i1 %12, label %13, label %14

13:                                               ; preds = %2
  br label %51

14:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %15 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 16) #5
  store ptr %15, ptr %5, align 8, !tbaa !9
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = load ptr, ptr %5, align 8, !tbaa !9
  %18 = getelementptr inbounds %struct.Node, ptr %17, i32 0, i32 0
  store i32 %16, ptr %18, align 8, !tbaa !11
  %19 = load ptr, ptr %5, align 8, !tbaa !9
  %20 = getelementptr inbounds %struct.Node, ptr %19, i32 0, i32 1
  store ptr null, ptr %20, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  %21 = load i32, ptr %3, align 4, !tbaa !5
  %22 = call noundef i32 @_Z2hxi(i32 noundef %21)
  store i32 %22, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %23 = load ptr, ptr %4, align 8, !tbaa !9
  %24 = load i32, ptr %6, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds ptr, ptr %23, i64 %25
  %27 = load ptr, ptr %26, align 8, !tbaa !9
  store ptr %27, ptr %7, align 8, !tbaa !9
  %28 = load ptr, ptr %7, align 8, !tbaa !9
  %29 = icmp eq ptr %28, null
  br i1 %29, label %30, label %36

30:                                               ; preds = %14
  %31 = load ptr, ptr %5, align 8, !tbaa !9
  %32 = load ptr, ptr %4, align 8, !tbaa !9
  %33 = load i32, ptr %6, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds ptr, ptr %32, i64 %34
  store ptr %31, ptr %35, align 8, !tbaa !9
  br label %50

36:                                               ; preds = %14
  br label %37

37:                                               ; preds = %42, %36
  %38 = load ptr, ptr %7, align 8, !tbaa !9
  %39 = getelementptr inbounds %struct.Node, ptr %38, i32 0, i32 1
  %40 = load ptr, ptr %39, align 8, !tbaa !13
  %41 = icmp ne ptr %40, null
  br i1 %41, label %42, label %46

42:                                               ; preds = %37
  %43 = load ptr, ptr %7, align 8, !tbaa !9
  %44 = getelementptr inbounds %struct.Node, ptr %43, i32 0, i32 1
  %45 = load ptr, ptr %44, align 8, !tbaa !13
  store ptr %45, ptr %7, align 8, !tbaa !9
  br label %37, !llvm.loop !14

46:                                               ; preds = %37
  %47 = load ptr, ptr %5, align 8, !tbaa !9
  %48 = load ptr, ptr %7, align 8, !tbaa !9
  %49 = getelementptr inbounds %struct.Node, ptr %48, i32 0, i32 1
  store ptr %47, ptr %49, align 8, !tbaa !13
  br label %50

50:                                               ; preds = %46, %30
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  br label %51

51:                                               ; preds = %50, %13
  ret void
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
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 = { nobuiltin allocsize(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 #4 = { nounwind }
attributes #5 = { builtin allocsize(0) }

!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, !6, i64 0}
!12 = !{!"_ZTS4Node", !6, i64 0, !10, i64 8}
!13 = !{!12, !10, i64 8}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; 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 @_Z2hxi(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z6SearchiPP4Node(i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6InsertiPP4Node(i32 noundef %0, ptr noundef %1) local_unnamed_addr #1 {
  %3 = tail call noundef zeroext i1 @_Z6SearchiPP4Node(i32 noundef %0, ptr noundef %1)
  br i1 %3, label %16, label %4

4:                                                ; preds = %2
  %5 = tail call noalias noundef nonnull dereferenceable(16) ptr @_Znwm(i64 noundef 16) #3
  store i32 %0, ptr %5, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %5, i64 8
  store ptr null, ptr %6, align 8, !tbaa !11
  %7 = tail call noundef i32 @_Z2hxi(i32 noundef %0)
  %8 = sext i32 %7 to i64
  %9 = getelementptr inbounds ptr, ptr %1, i64 %8
  %10 = load ptr, ptr %9, align 8, !tbaa !12
  %11 = icmp eq ptr %10, null
  br i1 %11, label %.sink.split, label %.preheader

.preheader:                                       ; preds = %4, %.preheader
  %.0 = phi ptr [ %13, %.preheader ], [ %10, %4 ]
  %12 = getelementptr inbounds i8, ptr %.0, i64 8
  %13 = load ptr, ptr %12, align 8, !tbaa !11
  %.not = icmp eq ptr %13, null
  br i1 %.not, label %14, label %.preheader, !llvm.loop !13

14:                                               ; preds = %.preheader
  %15 = getelementptr inbounds i8, ptr %.0, i64 8
  br label %.sink.split

.sink.split:                                      ; preds = %4, %14
  %.sink = phi ptr [ %15, %14 ], [ %9, %4 ]
  store ptr %5, ptr %.sink, align 8, !tbaa !12
  br label %16

16:                                               ; preds = %.sink.split, %2
  ret void
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #2

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 = { 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 = { nobuiltin allocsize(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 = { builtin allocsize(0) }

!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}
!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 = !{!10, !10, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LICMPass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass