; LLVM IR from yangfengzzz/DigitalVox3 :: vox.render/offline (fbx_mesh)

; 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.vox::offline::loader::Mesh" = type { %"class.std::vector.8", %"class.std::vector.4", %"class.std::vector.4", %"class.std::vector.12" }
%"class.std::vector.8" = type { %"struct.std::_Vector_base.9" }
%"struct.std::_Vector_base.9" = type { %"struct.std::_Vector_base<vox::offline::loader::Mesh::Part, vox::StdAllocator<vox::offline::loader::Mesh::Part>>::_Vector_impl" }
%"struct.std::_Vector_base<vox::offline::loader::Mesh::Part, vox::StdAllocator<vox::offline::loader::Mesh::Part>>::_Vector_impl" = type { %"struct.std::_Vector_base<vox::offline::loader::Mesh::Part, vox::StdAllocator<vox::offline::loader::Mesh::Part>>::_Vector_impl_data" }
%"struct.std::_Vector_base<vox::offline::loader::Mesh::Part, vox::StdAllocator<vox::offline::loader::Mesh::Part>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.4" = type { %"struct.std::_Vector_base.5" }
%"struct.std::_Vector_base.5" = type { %"struct.std::_Vector_base<unsigned short, vox::StdAllocator<unsigned short>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned short, vox::StdAllocator<unsigned short>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned short, vox::StdAllocator<unsigned short>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned short, vox::StdAllocator<unsigned short>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.12" = type { %"struct.std::_Vector_base.13" }
%"struct.std::_Vector_base.13" = type { %"struct.std::_Vector_base<vox::math::Float4x4, vox::StdAllocator<vox::math::Float4x4>>::_Vector_impl" }
%"struct.std::_Vector_base<vox::math::Float4x4, vox::StdAllocator<vox::math::Float4x4>>::_Vector_impl" = type { %"struct.std::_Vector_base<vox::math::Float4x4, vox::StdAllocator<vox::math::Float4x4>>::_Vector_impl_data" }
%"struct.std::_Vector_base<vox::math::Float4x4, vox::StdAllocator<vox::math::Float4x4>>::_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 uwtable
declare dso_local void @_ZN3vox2io8IArchiversISt6vectorItNS_12StdAllocatorItEEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9), ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3vox2io6ExternINS_7offline6loader4MeshEE4LoadERNS0_8IArchiveEPS4_mj(ptr noundef nonnull align 8 dereferenceable(9) %0, ptr noundef %1, i64 noundef %2, i32 noundef %3) #1 align 2 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  %9 = alloca i64, align 8
  %10 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i64 %2, ptr %7, align 8, !tbaa !9
  store i32 %3, ptr %8, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  store i64 0, ptr %9, align 8, !tbaa !9
  br label %11

11:                                               ; preds = %32, %4
  %12 = load i64, ptr %9, align 8, !tbaa !9
  %13 = load i64, ptr %7, align 8, !tbaa !9
  %14 = icmp ult i64 %12, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  br label %35

16:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #2
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = load i64, ptr %9, align 8, !tbaa !9
  %19 = getelementptr inbounds %"struct.vox::offline::loader::Mesh", ptr %17, i64 %18
  store ptr %19, ptr %10, align 8, !tbaa !5
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = load ptr, ptr %10, align 8, !tbaa !5
  %22 = getelementptr inbounds %"struct.vox::offline::loader::Mesh", ptr %21, i32 0, i32 0
  call void @_ZN3vox2io8IArchiversISt6vectorINS_7offline6loader4Mesh4PartENS_12StdAllocatorIS7_EEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9) %20, ptr noundef nonnull align 8 dereferenceable(24) %22)
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = load ptr, ptr %10, align 8, !tbaa !5
  %25 = getelementptr inbounds %"struct.vox::offline::loader::Mesh", ptr %24, i32 0, i32 1
  call void @_ZN3vox2io8IArchiversISt6vectorItNS_12StdAllocatorItEEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9) %23, ptr noundef nonnull align 8 dereferenceable(24) %25)
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = load ptr, ptr %10, align 8, !tbaa !5
  %28 = getelementptr inbounds %"struct.vox::offline::loader::Mesh", ptr %27, i32 0, i32 2
  call void @_ZN3vox2io8IArchiversISt6vectorItNS_12StdAllocatorItEEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9) %26, ptr noundef nonnull align 8 dereferenceable(24) %28)
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = load ptr, ptr %10, align 8, !tbaa !5
  %31 = getelementptr inbounds %"struct.vox::offline::loader::Mesh", ptr %30, i32 0, i32 3
  call void @_ZN3vox2io8IArchiversISt6vectorINS_4math8Float4x4ENS_12StdAllocatorIS5_EEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9) %29, ptr noundef nonnull align 8 dereferenceable(24) %31)
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #2
  br label %32

32:                                               ; preds = %16
  %33 = load i64, ptr %9, align 8, !tbaa !9
  %34 = add i64 %33, 1
  store i64 %34, ptr %9, align 8, !tbaa !9
  br label %11, !llvm.loop !13

35:                                               ; preds = %15
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN3vox2io8IArchiversISt6vectorINS_7offline6loader4Mesh4PartENS_12StdAllocatorIS7_EEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9), ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN3vox2io8IArchiversISt6vectorINS_4math8Float4x4ENS_12StdAllocatorIS5_EEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9), ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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"

%"struct.vox::offline::loader::Mesh" = type { %"class.std::vector.8", %"class.std::vector.4", %"class.std::vector.4", %"class.std::vector.12" }
%"class.std::vector.8" = type { %"struct.std::_Vector_base.9" }
%"struct.std::_Vector_base.9" = type { %"struct.std::_Vector_base<vox::offline::loader::Mesh::Part, vox::StdAllocator<vox::offline::loader::Mesh::Part>>::_Vector_impl" }
%"struct.std::_Vector_base<vox::offline::loader::Mesh::Part, vox::StdAllocator<vox::offline::loader::Mesh::Part>>::_Vector_impl" = type { %"struct.std::_Vector_base<vox::offline::loader::Mesh::Part, vox::StdAllocator<vox::offline::loader::Mesh::Part>>::_Vector_impl_data" }
%"struct.std::_Vector_base<vox::offline::loader::Mesh::Part, vox::StdAllocator<vox::offline::loader::Mesh::Part>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.4" = type { %"struct.std::_Vector_base.5" }
%"struct.std::_Vector_base.5" = type { %"struct.std::_Vector_base<unsigned short, vox::StdAllocator<unsigned short>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned short, vox::StdAllocator<unsigned short>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned short, vox::StdAllocator<unsigned short>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned short, vox::StdAllocator<unsigned short>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.12" = type { %"struct.std::_Vector_base.13" }
%"struct.std::_Vector_base.13" = type { %"struct.std::_Vector_base<vox::math::Float4x4, vox::StdAllocator<vox::math::Float4x4>>::_Vector_impl" }
%"struct.std::_Vector_base<vox::math::Float4x4, vox::StdAllocator<vox::math::Float4x4>>::_Vector_impl" = type { %"struct.std::_Vector_base<vox::math::Float4x4, vox::StdAllocator<vox::math::Float4x4>>::_Vector_impl_data" }
%"struct.std::_Vector_base<vox::math::Float4x4, vox::StdAllocator<vox::math::Float4x4>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN3vox2io8IArchiversISt6vectorItNS_12StdAllocatorItEEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3vox2io6ExternINS_7offline6loader4MeshEE4LoadERNS0_8IArchiveEPS4_mj(ptr noundef nonnull align 8 dereferenceable(9) %0, ptr noundef %1, i64 noundef %2, i32 noundef %3) local_unnamed_addr #0 align 2 {
  %.not = icmp eq i64 %2, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %4
  ret void

.lr.ph:                                           ; preds = %4, %.lr.ph
  %.012 = phi i64 [ %9, %.lr.ph ], [ 0, %4 ]
  %5 = getelementptr inbounds %"struct.vox::offline::loader::Mesh", ptr %1, i64 %.012
  tail call void @_ZN3vox2io8IArchiversISt6vectorINS_7offline6loader4Mesh4PartENS_12StdAllocatorIS7_EEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9) %0, ptr noundef nonnull align 8 dereferenceable(24) %5)
  %6 = getelementptr inbounds i8, ptr %5, i64 24
  tail call void @_ZN3vox2io8IArchiversISt6vectorItNS_12StdAllocatorItEEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9) %0, ptr noundef nonnull align 8 dereferenceable(24) %6)
  %7 = getelementptr inbounds i8, ptr %5, i64 48
  tail call void @_ZN3vox2io8IArchiversISt6vectorItNS_12StdAllocatorItEEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9) %0, ptr noundef nonnull align 8 dereferenceable(24) %7)
  %8 = getelementptr inbounds i8, ptr %5, i64 72
  tail call void @_ZN3vox2io8IArchiversISt6vectorINS_4math8Float4x4ENS_12StdAllocatorIS5_EEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9) %0, ptr noundef nonnull align 8 dereferenceable(24) %8)
  %9 = add nuw i64 %.012, 1
  %exitcond.not = icmp eq i64 %9, %2
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN3vox2io8IArchiversISt6vectorINS_7offline6loader4Mesh4PartENS_12StdAllocatorIS7_EEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN3vox2io8IArchiversISt6vectorINS_4math8Float4x4ENS_12StdAllocatorIS5_EEEEEvRT_(ptr noundef nonnull align 8 dereferenceable(9), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

attributes #0 = { 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" }

!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: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass