; LLVM IR from wmcnamara/crynn :: lib/thirdparty/assimp/contrib/Open3DGC (o3dgcTriangleFans)

; 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"

; 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 noundef i64 @_ZNK5o3dgc12BinaryStream15ReadUInt32ASCIIERm(ptr noundef nonnull align 8 dereferenceable(28), ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5o3dgc6VectorIlE8AllocateEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5o3dgc6VectorIlE5ClearEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5o3dgc6VectorIlE8PushBackERKl(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN5o3dgc11LoadIntDataERNS_6VectorIlEERKNS_12BinaryStreamERm(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(28) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = load ptr, ptr %6, align 8, !tbaa !5
  %12 = call noundef i64 @_ZNK5o3dgc12BinaryStream15ReadUInt32ASCIIERm(ptr noundef nonnull align 8 dereferenceable(28) %10, ptr noundef nonnull align 8 dereferenceable(8) %11)
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = load ptr, ptr %6, align 8, !tbaa !5
  %15 = call noundef i64 @_ZNK5o3dgc12BinaryStream15ReadUInt32ASCIIERm(ptr noundef nonnull align 8 dereferenceable(28) %13, ptr noundef nonnull align 8 dereferenceable(8) %14)
  store i64 %15, ptr %7, align 8, !tbaa !9
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = load i64, ptr %7, align 8, !tbaa !9
  call void @_ZN5o3dgc6VectorIlE8AllocateEm(ptr noundef nonnull align 8 dereferenceable(24) %16, i64 noundef %17)
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  call void @_ZN5o3dgc6VectorIlE5ClearEv(ptr noundef nonnull align 8 dereferenceable(24) %18)
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 0, ptr %8, align 8, !tbaa !9
  br label %19

19:                                               ; preds = %29, %3
  %20 = load i64, ptr %8, align 8, !tbaa !9
  %21 = load i64, ptr %7, align 8, !tbaa !9
  %22 = icmp ult i64 %20, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %32

24:                                               ; preds = %19
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = call noundef i64 @_ZNK5o3dgc12BinaryStream12ReadIntASCIIERm(ptr noundef nonnull align 8 dereferenceable(28) %26, ptr noundef nonnull align 8 dereferenceable(8) %27)
  store i64 %28, ptr %9, align 8, !tbaa !9
  call void @_ZN5o3dgc6VectorIlE8PushBackERKl(ptr noundef nonnull align 8 dereferenceable(24) %25, ptr noundef nonnull align 8 dereferenceable(8) %9)
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %29

29:                                               ; preds = %24
  %30 = load i64, ptr %8, align 8, !tbaa !9
  %31 = add i64 %30, 1
  store i64 %31, ptr %8, align 8, !tbaa !9
  br label %19, !llvm.loop !11

32:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  ret i32 0
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNK5o3dgc12BinaryStream12ReadIntASCIIERm(ptr noundef nonnull align 8 dereferenceable(28), ptr noundef nonnull align 8 dereferenceable(8)) #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 = { 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 = { 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 = 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"

; 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 uwtable
declare dso_local noundef i64 @_ZNK5o3dgc12BinaryStream15ReadUInt32ASCIIERm(ptr noundef nonnull align 8 dereferenceable(28), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5o3dgc6VectorIlE8AllocateEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN5o3dgc6VectorIlE5ClearEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN5o3dgc6VectorIlE8PushBackERKl(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN5o3dgc11LoadIntDataERNS_6VectorIlEERKNS_12BinaryStreamERm(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(28) %1, ptr noundef nonnull align 8 dereferenceable(8) %2) local_unnamed_addr #1 {
  %4 = alloca i64, align 8
  %5 = tail call noundef i64 @_ZNK5o3dgc12BinaryStream15ReadUInt32ASCIIERm(ptr noundef nonnull align 8 dereferenceable(28) %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %6 = tail call noundef i64 @_ZNK5o3dgc12BinaryStream15ReadUInt32ASCIIERm(ptr noundef nonnull align 8 dereferenceable(28) %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
  tail call void @_ZN5o3dgc6VectorIlE8AllocateEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %6)
  tail call void @_ZN5o3dgc6VectorIlE5ClearEv(ptr noundef nonnull align 8 dereferenceable(24) %0)
  %.not = icmp eq i64 %6, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %3
  ret i32 0

.lr.ph:                                           ; preds = %3, %.lr.ph
  %.012 = phi i64 [ %8, %.lr.ph ], [ 0, %3 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %7 = call noundef i64 @_ZNK5o3dgc12BinaryStream12ReadIntASCIIERm(ptr noundef nonnull align 8 dereferenceable(28) %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
  store i64 %7, ptr %4, align 8, !tbaa !5
  call void @_ZN5o3dgc6VectorIlE8PushBackERKl(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(8) %4)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  %8 = add nuw i64 %.012, 1
  %exitcond.not = icmp eq i64 %8, %6
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNK5o3dgc12BinaryStream12ReadIntASCIIERm(ptr noundef nonnull align 8 dereferenceable(28), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress 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 = { 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 = { 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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