; LLVM IR from openanolis/openssl :: crypto/lhash (lhash)

; 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.lhash_st = type { ptr, ptr, ptr, i32, i32, i32, i32, i64, i64, i64, i32 }
%struct.lhash_node_st = type { ptr, ptr, i64 }

@.str = external hidden unnamed_addr constant [73 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare void @CRYPTO_free(ptr noundef, ptr noundef, i32 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local void @OPENSSL_LH_flush(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  br i1 %8, label %9, label %10

9:                                                ; preds = %1
  store i32 1, ptr %6, align 4
  br label %47

10:                                               ; preds = %1
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %41, %10
  %12 = load i32, ptr %3, align 4, !tbaa !9
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.lhash_st, ptr %13, i32 0, i32 3
  %15 = load i32, ptr %14, align 8, !tbaa !11
  %16 = icmp ult i32 %12, %15
  br i1 %16, label %17, label %44

17:                                               ; preds = %11
  %18 = load ptr, ptr %2, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.lhash_st, ptr %18, i32 0, i32 0
  %20 = load ptr, ptr %19, align 8, !tbaa !14
  %21 = load i32, ptr %3, align 4, !tbaa !9
  %22 = zext i32 %21 to i64
  %23 = getelementptr inbounds ptr, ptr %20, i64 %22
  %24 = load ptr, ptr %23, align 8, !tbaa !5
  store ptr %24, ptr %4, align 8, !tbaa !5
  br label %25

25:                                               ; preds = %28, %17
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = icmp ne ptr %26, null
  br i1 %27, label %28, label %34

28:                                               ; preds = %25
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.lhash_node_st, ptr %29, i32 0, i32 1
  %31 = load ptr, ptr %30, align 8, !tbaa !15
  store ptr %31, ptr %5, align 8, !tbaa !5
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  call void @CRYPTO_free(ptr noundef %32, ptr noundef @.str, i32 noundef 92)
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %33, ptr %4, align 8, !tbaa !5
  br label %25, !llvm.loop !17

34:                                               ; preds = %25
  %35 = load ptr, ptr %2, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.lhash_st, ptr %35, i32 0, i32 0
  %37 = load ptr, ptr %36, align 8, !tbaa !14
  %38 = load i32, ptr %3, align 4, !tbaa !9
  %39 = zext i32 %38 to i64
  %40 = getelementptr inbounds ptr, ptr %37, i64 %39
  store ptr null, ptr %40, align 8, !tbaa !5
  br label %41

41:                                               ; preds = %34
  %42 = load i32, ptr %3, align 4, !tbaa !9
  %43 = add i32 %42, 1
  store i32 %43, ptr %3, align 4, !tbaa !9
  br label %11, !llvm.loop !19

44:                                               ; preds = %11
  %45 = load ptr, ptr %2, align 8, !tbaa !5
  %46 = getelementptr inbounds %struct.lhash_st, ptr %45, i32 0, i32 9
  store i64 0, ptr %46, align 8, !tbaa !20
  store i32 0, ptr %6, align 4
  br label %47

47:                                               ; preds = %44, %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  %48 = load i32, ptr %6, align 4
  switch i32 %48, label %50 [
    i32 0, label %49
    i32 1, label %49
  ]

49:                                               ; preds = %47, %47
  ret void

50:                                               ; preds = %47
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 = { 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 #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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 24}
!12 = !{!"lhash_st", !6, i64 0, !6, i64 8, !6, i64 16, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !13, i64 40, !13, i64 48, !13, i64 56, !10, i64 64}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !6, i64 0}
!15 = !{!16, !6, i64 8}
!16 = !{!"lhash_node_st", !6, i64 0, !6, i64 8, !13, i64 16}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}
!19 = distinct !{!19, !18}
!20 = !{!12, !13, i64 56}


; 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"

@.str = external hidden unnamed_addr constant [73 x i8], align 1

declare void @CRYPTO_free(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @OPENSSL_LH_flush(ptr noundef %0) local_unnamed_addr #1 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %17, label %.preheader

.preheader:                                       ; preds = %1
  %3 = getelementptr inbounds i8, ptr %0, i64 24
  %4 = load i32, ptr %3, align 8, !tbaa !5
  %.not19 = icmp eq i32 %4, 0
  br i1 %.not19, label %._crit_edge18, label %.lr.ph17

.lr.ph17:                                         ; preds = %.preheader, %._crit_edge
  %5 = phi i32 [ %11, %._crit_edge ], [ %4, %.preheader ]
  %indvars.iv = phi i64 [ %indvars.iv.next, %._crit_edge ], [ 0, %.preheader ]
  %6 = load ptr, ptr %0, align 8, !tbaa !12
  %7 = getelementptr inbounds ptr, ptr %6, i64 %indvars.iv
  %8 = load ptr, ptr %7, align 8, !tbaa !13
  %.not14 = icmp eq ptr %8, null
  br i1 %.not14, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph17, %.lr.ph
  %.01215 = phi ptr [ %10, %.lr.ph ], [ %8, %.lr.ph17 ]
  %9 = getelementptr inbounds i8, ptr %.01215, i64 8
  %10 = load ptr, ptr %9, align 8, !tbaa !14
  tail call void @CRYPTO_free(ptr noundef nonnull %.01215, ptr noundef nonnull @.str, i32 noundef 92) #2
  %.not = icmp eq ptr %10, null
  br i1 %.not, label %._crit_edge.loopexit, label %.lr.ph, !llvm.loop !16

._crit_edge.loopexit:                             ; preds = %.lr.ph
  %.pre = load ptr, ptr %0, align 8, !tbaa !12
  %.pre21 = load i32, ptr %3, align 8, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.lr.ph17
  %11 = phi i32 [ %.pre21, %._crit_edge.loopexit ], [ %5, %.lr.ph17 ]
  %12 = phi ptr [ %.pre, %._crit_edge.loopexit ], [ %6, %.lr.ph17 ]
  %13 = getelementptr inbounds ptr, ptr %12, i64 %indvars.iv
  store ptr null, ptr %13, align 8, !tbaa !13
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %14 = zext i32 %11 to i64
  %15 = icmp ult i64 %indvars.iv.next, %14
  br i1 %15, label %.lr.ph17, label %._crit_edge18, !llvm.loop !18

._crit_edge18:                                    ; preds = %._crit_edge, %.preheader
  %16 = getelementptr inbounds i8, ptr %0, i64 56
  store i64 0, ptr %16, align 8, !tbaa !19
  br label %17

17:                                               ; preds = %1, %._crit_edge18
  ret void
}

attributes #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 = { 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 = { 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, !10, i64 24}
!6 = !{!"lhash_st", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !11, i64 40, !11, i64 48, !11, i64 56, !10, i64 64}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"long", !8, i64 0}
!12 = !{!6, !7, i64 0}
!13 = !{!7, !7, i64 0}
!14 = !{!15, !7, i64 8}
!15 = !{!"lhash_node_st", !7, i64 0, !7, i64 8, !11, i64 16}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}
!18 = distinct !{!18, !17}
!19 = !{!6, !11, i64 56}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass