; LLVM IR from wmcnamara/crynn :: lib/thirdparty/assimp/contrib/Open3DGC (o3dgcArithmeticCodec)

; 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.o3dgc::Arithmetic_Codec" = type <{ ptr, ptr, ptr, i32, i32, i32, i32, i32, [4 x i8] }>

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN5o3dgc16Arithmetic_Codec19renorm_dec_intervalEv(ptr noundef nonnull align 8 dereferenceable(44)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN5o3dgc16Arithmetic_Codec8get_bitsEj(ptr noundef nonnull align 8 dereferenceable(44) %0, i32 noundef %1) #2 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %6 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %7 = getelementptr inbounds %"class.o3dgc::Arithmetic_Codec", ptr %6, i32 0, i32 4
  %8 = load i32, ptr %7, align 4, !tbaa !11
  %9 = load i32, ptr %4, align 4, !tbaa !9
  %10 = getelementptr inbounds %"class.o3dgc::Arithmetic_Codec", ptr %6, i32 0, i32 5
  %11 = load i32, ptr %10, align 8, !tbaa !13
  %12 = lshr i32 %11, %9
  store i32 %12, ptr %10, align 8, !tbaa !13
  %13 = udiv i32 %8, %12
  store i32 %13, ptr %5, align 4, !tbaa !9
  %14 = getelementptr inbounds %"class.o3dgc::Arithmetic_Codec", ptr %6, i32 0, i32 5
  %15 = load i32, ptr %14, align 8, !tbaa !13
  %16 = load i32, ptr %5, align 4, !tbaa !9
  %17 = mul i32 %15, %16
  %18 = getelementptr inbounds %"class.o3dgc::Arithmetic_Codec", ptr %6, i32 0, i32 4
  %19 = load i32, ptr %18, align 4, !tbaa !11
  %20 = sub i32 %19, %17
  store i32 %20, ptr %18, align 4, !tbaa !11
  %21 = getelementptr inbounds %"class.o3dgc::Arithmetic_Codec", ptr %6, i32 0, i32 5
  %22 = load i32, ptr %21, align 8, !tbaa !13
  %23 = icmp ult i32 %22, 16777216
  br i1 %23, label %24, label %25

24:                                               ; preds = %2
  call void @_ZN5o3dgc16Arithmetic_Codec19renorm_dec_intervalEv(ptr noundef nonnull align 8 dereferenceable(44) %6)
  br label %25

25:                                               ; preds = %24, %2
  %26 = load i32, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret i32 %26
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #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, !10, i64 28}
!12 = !{!"_ZTSN5o3dgc16Arithmetic_CodecE", !6, i64 0, !6, i64 8, !6, i64 16, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !10, i64 40}
!13 = !{!12, !10, i64 32}


; 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: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN5o3dgc16Arithmetic_Codec19renorm_dec_intervalEv(ptr noundef nonnull align 8 dereferenceable(44)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_ZN5o3dgc16Arithmetic_Codec8get_bitsEj(ptr noundef nonnull align 8 dereferenceable(44) %0, i32 noundef %1) local_unnamed_addr #1 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 28
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 32
  %6 = load i32, ptr %5, align 8, !tbaa !11
  %7 = lshr i32 %6, %1
  store i32 %7, ptr %5, align 8, !tbaa !11
  %8 = udiv i32 %4, %7
  %9 = mul i32 %8, %7
  %.recomposed = urem i32 %4, %7
  store i32 %.recomposed, ptr %3, align 4, !tbaa !5
  %10 = icmp ult i32 %7, 16777216
  br i1 %10, label %11, label %12

11:                                               ; preds = %2
  tail call void @_ZN5o3dgc16Arithmetic_Codec19renorm_dec_intervalEv(ptr noundef nonnull align 8 dereferenceable(44) %0)
  br label %12

12:                                               ; preds = %11, %2
  ret i32 %8
}

attributes #0 = { 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 #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" }

!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, !10, i64 28}
!6 = !{!"_ZTSN5o3dgc16Arithmetic_CodecE", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !10, i64 40}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 32}


; Effective O3 passes: DivRemPairsPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,TailCallElimPass