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

; 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::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 noundef double @_ZN10ClipperLib4AreaERKSt6vectorINS_8IntPointESaIS1_EE(ptr noundef nonnull align 8 dereferenceable(24) %0) #1 {
  %2 = alloca double, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca double, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = call noundef i64 @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %9) #3
  %11 = trunc i64 %10 to i32
  store i32 %11, ptr %4, align 4, !tbaa !9
  %12 = load i32, ptr %4, align 4, !tbaa !9
  %13 = icmp slt i32 %12, 3
  br i1 %13, label %14, label %15

14:                                               ; preds = %1
  store double 0.000000e+00, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %64

15:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store double 0.000000e+00, ptr %6, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %16 = load i32, ptr %4, align 4, !tbaa !9
  %17 = sub nsw i32 %16, 1
  store i32 %17, ptr %8, align 4, !tbaa !9
  br label %18

18:                                               ; preds = %57, %15
  %19 = load i32, ptr %7, align 4, !tbaa !9
  %20 = load i32, ptr %4, align 4, !tbaa !9
  %21 = icmp slt i32 %19, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  store i32 2, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %60

23:                                               ; preds = %18
  %24 = load ptr, ptr %3, align 8, !tbaa !5
  %25 = load i32, ptr %8, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %24, i64 noundef %26) #3
  %28 = getelementptr inbounds %"struct.ClipperLib::IntPoint", ptr %27, i32 0, i32 0
  %29 = load i64, ptr %28, align 8, !tbaa !13
  %30 = sitofp i64 %29 to double
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = load i32, ptr %7, align 4, !tbaa !9
  %33 = sext i32 %32 to i64
  %34 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %31, i64 noundef %33) #3
  %35 = getelementptr inbounds %"struct.ClipperLib::IntPoint", ptr %34, i32 0, i32 0
  %36 = load i64, ptr %35, align 8, !tbaa !13
  %37 = sitofp i64 %36 to double
  %38 = fadd double %30, %37
  %39 = load ptr, ptr %3, align 8, !tbaa !5
  %40 = load i32, ptr %8, align 4, !tbaa !9
  %41 = sext i32 %40 to i64
  %42 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %39, i64 noundef %41) #3
  %43 = getelementptr inbounds %"struct.ClipperLib::IntPoint", ptr %42, i32 0, i32 1
  %44 = load i64, ptr %43, align 8, !tbaa !16
  %45 = sitofp i64 %44 to double
  %46 = load ptr, ptr %3, align 8, !tbaa !5
  %47 = load i32, ptr %7, align 4, !tbaa !9
  %48 = sext i32 %47 to i64
  %49 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %46, i64 noundef %48) #3
  %50 = getelementptr inbounds %"struct.ClipperLib::IntPoint", ptr %49, i32 0, i32 1
  %51 = load i64, ptr %50, align 8, !tbaa !16
  %52 = sitofp i64 %51 to double
  %53 = fsub double %45, %52
  %54 = load double, ptr %6, align 8, !tbaa !11
  %55 = call double @llvm.fmuladd.f64(double %38, double %53, double %54)
  store double %55, ptr %6, align 8, !tbaa !11
  %56 = load i32, ptr %7, align 4, !tbaa !9
  store i32 %56, ptr %8, align 4, !tbaa !9
  br label %57

57:                                               ; preds = %23
  %58 = load i32, ptr %7, align 4, !tbaa !9
  %59 = add nsw i32 %58, 1
  store i32 %59, ptr %7, align 4, !tbaa !9
  br label %18, !llvm.loop !17

60:                                               ; preds = %22
  %61 = load double, ptr %6, align 8, !tbaa !11
  %62 = fneg double %61
  %63 = fmul double %62, 5.000000e-01
  store double %63, ptr %2, align 8
  store i32 1, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %64

64:                                               ; preds = %60, %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  %65 = load double, ptr %2, align 8
  ret double %65
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"double", !7, i64 0}
!13 = !{!14, !15, i64 0}
!14 = !{!"_ZTSN10ClipperLib8IntPointE", !15, i64 0, !15, i64 8}
!15 = !{!"long long", !7, i64 0}
!16 = !{!14, !15, i64 8}
!17 = distinct !{!17, !18}
!18 = !{!"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 noundef double @_ZN10ClipperLib4AreaERKSt6vectorINS_8IntPointESaIS1_EE(ptr noundef nonnull align 8 dereferenceable(24) %0) local_unnamed_addr #0 {
  %2 = tail call noundef i64 @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #2
  %3 = trunc i64 %2 to i32
  %4 = icmp slt i32 %3, 3
  br i1 %4, label %28, label %5

5:                                                ; preds = %1
  %6 = add i64 %2, -1
  %wide.trip.count = and i64 %2, 2147483647
  br label %9

7:                                                ; preds = %9
  %8 = fmul double %27, -5.000000e-01
  br label %28

9:                                                ; preds = %5, %9
  %indvars.iv = phi i64 [ 0, %5 ], [ %indvars.iv.next, %9 ]
  %.023 = phi i64 [ %6, %5 ], [ %indvars.iv, %9 ]
  %.01821 = phi double [ 0.000000e+00, %5 ], [ %27, %9 ]
  %sext = shl i64 %.023, 32
  %10 = ashr exact i64 %sext, 32
  %11 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %10) #2
  %12 = load i64, ptr %11, align 8, !tbaa !5
  %13 = sitofp i64 %12 to double
  %14 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv) #2
  %15 = load i64, ptr %14, align 8, !tbaa !5
  %16 = sitofp i64 %15 to double
  %17 = fadd double %13, %16
  %18 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %10) #2
  %19 = getelementptr inbounds i8, ptr %18, i64 8
  %20 = load i64, ptr %19, align 8, !tbaa !10
  %21 = sitofp i64 %20 to double
  %22 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv) #2
  %23 = getelementptr inbounds i8, ptr %22, i64 8
  %24 = load i64, ptr %23, align 8, !tbaa !10
  %25 = sitofp i64 %24 to double
  %26 = fsub double %21, %25
  %27 = tail call double @llvm.fmuladd.f64(double %17, double %26, double %.01821)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %7, label %9, !llvm.loop !11

28:                                               ; preds = %1, %7
  %.019 = phi double [ %8, %7 ], [ 0.000000e+00, %1 ]
  ret double %.019
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNKSt6vectorIN10ClipperLib8IntPointESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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, !7, i64 0}
!6 = !{!"_ZTSN10ClipperLib8IntPointE", !7, i64 0, !7, i64 8}
!7 = !{!"long long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 8}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopRotatePass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass