; LLVM IR from Lut1n/ImpGears :: src/ImpGears/Geometry/Polygon.ll (ZN3imp7PolygondVERKNS_4Vec3E)

; 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"

%"class.__gnu_cxx::__normal_iterator.5" = type { ptr }
%"class.imp::Polygon" = type { %"class.imp::Object", %"class.std::vector" }
%"class.imp::Object" = type { ptr, %"class.std::shared_ptr" }
%"class.std::shared_ptr" = type { %"class.std::__shared_ptr" }
%"class.std::__shared_ptr" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<imp::Path, std::allocator<imp::Path>>::_Vector_impl" }
%"struct.std::_Vector_base<imp::Path, std::allocator<imp::Path>>::_Vector_impl" = type { %"struct.std::_Vector_base<imp::Path, std::allocator<imp::Path>>::_Vector_impl_data" }
%"struct.std::_Vector_base<imp::Path, std::allocator<imp::Path>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.imp::Path" = type { %"class.imp::Object", %"class.std::vector.0" }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<imp::Vec3, std::allocator<imp::Vec3>>::_Vector_impl" }
%"struct.std::_Vector_base<imp::Vec3, std::allocator<imp::Vec3>>::_Vector_impl" = type { %"struct.std::_Vector_base<imp::Vec3, std::allocator<imp::Vec3>>::_Vector_impl_data" }
%"struct.std::_Vector_base<imp::Vec3, std::allocator<imp::Vec3>>::_Vector_impl_data" = type { ptr, ptr, 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 ptr @_ZNSt6vectorIN3imp4PathESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIN3imp4PathESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPN3imp4PathESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(48) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPN3imp4PathESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

declare noundef i32 @_ZNK3imp4Path5countEv(ptr noundef nonnull align 8 dereferenceable(48)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(36) ptr @_ZNSt6vectorIN3imp4Vec3ESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPN3imp4PathESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3imp7PolygondVERKNS_4Vec3E(ptr noundef nonnull align 8 dereferenceable(48) %0, ptr noundef nonnull align 8 dereferenceable(36) %1) #4 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator.5", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator.5", align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %11 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %12 = getelementptr inbounds %"class.imp::Polygon", ptr %11, i32 0, i32 1
  store ptr %12, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = call ptr @_ZNSt6vectorIN3imp4PathESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #5
  %15 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.5", ptr %6, i32 0, i32 0
  store ptr %14, ptr %15, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = call ptr @_ZNSt6vectorIN3imp4PathESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %16) #5
  %18 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.5", ptr %7, i32 0, i32 0
  store ptr %17, ptr %18, align 8
  br label %19

19:                                               ; preds = %42, %2
  %20 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPN3imp4PathESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  br i1 %20, label %22, label %21

21:                                               ; preds = %19
  store i32 2, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %44

22:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  %23 = call noundef nonnull align 8 dereferenceable(48) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPN3imp4PathESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #5
  store ptr %23, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %24

24:                                               ; preds = %38, %22
  %25 = load i32, ptr %10, align 4, !tbaa !9
  %26 = load ptr, ptr %9, align 8, !tbaa !5
  %27 = call noundef i32 @_ZNK3imp4Path5countEv(ptr noundef nonnull align 8 dereferenceable(48) %26)
  %28 = icmp slt i32 %25, %27
  br i1 %28, label %30, label %29

29:                                               ; preds = %24
  store i32 4, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %41

30:                                               ; preds = %24
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = load ptr, ptr %9, align 8, !tbaa !5
  %33 = getelementptr inbounds %"class.imp::Path", ptr %32, i32 0, i32 1
  %34 = load i32, ptr %10, align 4, !tbaa !9
  %35 = sext i32 %34 to i64
  %36 = call noundef nonnull align 8 dereferenceable(36) ptr @_ZNSt6vectorIN3imp4Vec3ESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %33, i64 noundef %35) #5
  %37 = call noundef nonnull align 8 dereferenceable(36) ptr @_ZN3imp3VecILi3EfEdVERKS1_(ptr noundef nonnull align 8 dereferenceable(36) %36, ptr noundef nonnull align 8 dereferenceable(36) %31)
  br label %38

38:                                               ; preds = %30
  %39 = load i32, ptr %10, align 4, !tbaa !9
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %10, align 4, !tbaa !9
  br label %24, !llvm.loop !11

41:                                               ; preds = %29
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %42

42:                                               ; preds = %41
  %43 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPN3imp4PathESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %6) #5
  br label %19

44:                                               ; preds = %21
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(36) ptr @_ZN3imp3VecILi3EfEdVERKS1_(ptr noundef nonnull align 8 dereferenceable(36), ptr noundef nonnull align 8 dereferenceable(36)) #1 align 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 = { inlinehint 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 #3 = { "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 = { 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 #5 = { 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 = distinct !{!11, !12}
!12 = !{!"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"

%"class.__gnu_cxx::__normal_iterator.5" = type { ptr }

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

; Function Attrs: mustprogress 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 ptr @_ZNSt6vectorIN3imp4PathESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIN3imp4PathESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPN3imp4PathESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(48) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPN3imp4PathESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

declare noundef i32 @_ZNK3imp4Path5countEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(36) ptr @_ZNSt6vectorIN3imp4Vec3ESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPN3imp4PathESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3imp7PolygondVERKNS_4Vec3E(ptr noundef nonnull align 8 dereferenceable(48) %0, ptr noundef nonnull align 8 dereferenceable(36) %1) local_unnamed_addr #4 align 2 {
  %3 = alloca %"class.__gnu_cxx::__normal_iterator.5", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator.5", align 8
  %5 = getelementptr inbounds i8, ptr %0, i64 24
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  %6 = tail call ptr @_ZNSt6vectorIN3imp4PathESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  store ptr %6, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %7 = tail call ptr @_ZNSt6vectorIN3imp4PathESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  store ptr %7, ptr %4, align 8
  %8 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPN3imp4PathESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #5
  br i1 %8, label %.lr.ph10, label %._crit_edge11

._crit_edge11:                                    ; preds = %._crit_edge, %2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  ret void

.lr.ph10:                                         ; preds = %2, %._crit_edge
  %9 = call noundef nonnull align 8 dereferenceable(48) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPN3imp4PathESt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %10 = call noundef i32 @_ZNK3imp4Path5countEv(ptr noundef nonnull align 8 dereferenceable(48) %9)
  %11 = icmp sgt i32 %10, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %.lr.ph10
  %12 = getelementptr inbounds i8, ptr %9, i64 24
  br label %15

._crit_edge:                                      ; preds = %15, %.lr.ph10
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPN3imp4PathESt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #5
  %14 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPN3imp4PathESt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #5
  br i1 %14, label %.lr.ph10, label %._crit_edge11

15:                                               ; preds = %.lr.ph, %15
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %15 ]
  %16 = call noundef nonnull align 8 dereferenceable(36) ptr @_ZNSt6vectorIN3imp4Vec3ESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %12, i64 noundef %indvars.iv) #5
  %17 = call noundef nonnull align 8 dereferenceable(36) ptr @_ZN3imp3VecILi3EfEdVERKS1_(ptr noundef nonnull align 8 dereferenceable(36) %16, ptr noundef nonnull align 8 dereferenceable(36) %1)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %18 = call noundef i32 @_ZNK3imp4Path5countEv(ptr noundef nonnull align 8 dereferenceable(48) %9)
  %19 = sext i32 %18 to i64
  %20 = icmp slt i64 %indvars.iv.next, %19
  br i1 %20, label %15, label %._crit_edge, !llvm.loop !5
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(36) ptr @_ZN3imp3VecILi3EfEdVERKS1_(ptr noundef nonnull align 8 dereferenceable(36), ptr noundef nonnull align 8 dereferenceable(36)) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress 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 = { inlinehint 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 #3 = { "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 = { 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 #5 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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