; LLVM IR from PaddlePaddle/Serving :: core/predictor/tools/ocrtools/clipper.ll (ZN10ClipperLib13DisposeOutPtsERPNS_5OutPtE)

; 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.ClipperLib::OutPt" = type { i32, %"struct.ClipperLib::IntPoint", ptr, ptr }
%"struct.ClipperLib::IntPoint" = type { i64, i64 }

; 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
define dso_local void @_ZN10ClipperLib13DisposeOutPtsERPNS_5OutPtE(ptr noundef nonnull align 8 dereferenceable(8) %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %7, label %8

7:                                                ; preds = %1
  br label %30

8:                                                ; preds = %1
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  %11 = getelementptr inbounds %"struct.ClipperLib::OutPt", ptr %10, i32 0, i32 3
  %12 = load ptr, ptr %11, align 8, !tbaa !9
  %13 = getelementptr inbounds %"struct.ClipperLib::OutPt", ptr %12, i32 0, i32 2
  store ptr null, ptr %13, align 8, !tbaa !14
  br label %14

14:                                               ; preds = %29, %8
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = load ptr, ptr %15, align 8, !tbaa !5
  %17 = icmp ne ptr %16, null
  br i1 %17, label %18, label %30

18:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = load ptr, ptr %19, align 8, !tbaa !5
  store ptr %20, ptr %3, align 8, !tbaa !5
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = load ptr, ptr %21, align 8, !tbaa !5
  %23 = getelementptr inbounds %"struct.ClipperLib::OutPt", ptr %22, i32 0, i32 2
  %24 = load ptr, ptr %23, align 8, !tbaa !14
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %24, ptr %25, align 8, !tbaa !5
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = icmp eq ptr %26, null
  br i1 %27, label %29, label %28

28:                                               ; preds = %18
  call void @_ZdlPvm(ptr noundef %26, i64 noundef 40) #4
  br label %29

29:                                               ; preds = %28, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %14, !llvm.loop !15

30:                                               ; preds = %14, %7
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #2

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 = { nobuiltin nounwind "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 }
attributes #4 = { builtin 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, !6, i64 32}
!10 = !{!"_ZTSN10ClipperLib5OutPtE", !11, i64 0, !12, i64 8, !6, i64 24, !6, i64 32}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_ZTSN10ClipperLib8IntPointE", !13, i64 0, !13, i64 8}
!13 = !{!"long long", !7, i64 0}
!14 = !{!10, !6, i64 24}
!15 = distinct !{!15, !16}
!16 = !{!"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
define dso_local void @_ZN10ClipperLib13DisposeOutPtsERPNS_5OutPtE(ptr nocapture noundef nonnull align 8 dereferenceable(8) %0) local_unnamed_addr #0 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %3 = icmp eq ptr %2, null
  br i1 %3, label %.loopexit, label %4

4:                                                ; preds = %1
  %5 = getelementptr inbounds i8, ptr %2, i64 32
  %6 = load ptr, ptr %5, align 8, !tbaa !9
  %7 = getelementptr inbounds i8, ptr %6, i64 24
  store ptr null, ptr %7, align 8, !tbaa !14
  %8 = load ptr, ptr %0, align 8, !tbaa !5
  %.not8 = icmp eq ptr %8, null
  br i1 %.not8, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %4, %.lr.ph
  %9 = phi ptr [ %12, %.lr.ph ], [ %8, %4 ]
  %10 = getelementptr inbounds i8, ptr %9, i64 24
  %11 = load ptr, ptr %10, align 8, !tbaa !14
  store ptr %11, ptr %0, align 8, !tbaa !5
  tail call void @_ZdlPvm(ptr noundef nonnull %9, i64 noundef 40) #2
  %12 = load ptr, ptr %0, align 8, !tbaa !5
  %.not = icmp eq ptr %12, null
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !15

.loopexit:                                        ; preds = %.lr.ph, %4, %1
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #1

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 = { nobuiltin nounwind "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 = { builtin 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, !6, i64 32}
!10 = !{!"_ZTSN10ClipperLib5OutPtE", !11, i64 0, !12, i64 8, !6, i64 24, !6, i64 32}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_ZTSN10ClipperLib8IntPointE", !13, i64 0, !13, i64 8}
!13 = !{!"long long", !7, i64 0}
!14 = !{!10, !6, i64 24}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass