; LLVM IR from facebookresearch/habitat-sim :: src/deps/basis-universal/encoder (basisu_frontend)

; 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.basisu::basisu_frontend" = type { %"struct.basisu::basisu_frontend::params", i32, i32, i8, i8, i8, i32, i32, %"class.basisu::vector", %"class.basisu::vector.0", %"class.basisu::vector.0", %"class.basisu::vector.0", %"class.basisu::tree_vector_quant", %"class.basisu::vector.6", %"class.basisu::vector.6", %"class.basisu::vector.8", %"class.basisu::vector.6", %"class.basisu::vector.10", %"class.basisu::vector.12", %"class.basisu::vector.6", %"class.basisu::vector.0", %"class.basisu::vector.6", %"class.basisu::vector.8", %"class.basisu::vector.6", %"class.basisu::vector.14", %"class.basisu::vector.16", %"class.basisu::vector.18", %"class.basisu::vector.20", %"class.std::mutex" }
%"struct.basisu::basisu_frontend::params" = type { i32, ptr, i32, i32, i32, i8, i8, i8, i8, i8, i8, i8, ptr, i32, i32, i8, float, i32, ptr, ptr }
%"class.basisu::vector" = type { ptr, i32, i32 }
%"class.basisu::tree_vector_quant" = type <{ %"class.basisu::vector.2", %"class.basisu::vector.4", i32, [4 x i8] }>
%"class.basisu::vector.2" = type { ptr, i32, i32 }
%"class.basisu::vector.4" = type { ptr, i32, i32 }
%"class.basisu::vector.10" = type { ptr, i32, i32 }
%"class.basisu::vector.12" = type { ptr, i32, i32 }
%"class.basisu::vector.0" = type { ptr, i32, i32 }
%"class.basisu::vector.8" = type { ptr, i32, i32 }
%"class.basisu::vector.6" = type { ptr, i32, i32 }
%"class.basisu::vector.14" = type { ptr, i32, i32 }
%"class.basisu::vector.16" = type { ptr, i32, i32 }
%"class.basisu::vector.18" = type { ptr, i32, i32 }
%"class.basisu::vector.20" = type { ptr, i32, i32 }
%"class.std::mutex" = type { %"class.std::__mutex_base" }
%"class.std::__mutex_base" = type { %union.pthread_mutex_t }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%"struct.basisu::basisu_frontend::endpoint_cluster_etc_params" = type <{ [2 x %"class.basisu::color_rgba"], [2 x i32], [2 x i64], %"class.basisu::vector.18", [2 x i8], i8, [5 x i8] }>
%"class.basisu::color_rgba" = type { %union.anon }
%union.anon = type { [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: mustprogress uwtable
define dso_local void @_ZN6basisu15basisu_frontend8finalizeEv(ptr noundef nonnull align 8 dereferenceable(496) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %7 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %33, %1
  %9 = load i32, ptr %3, align 4, !tbaa !9
  %10 = getelementptr inbounds %"class.basisu::basisu_frontend", ptr %7, i32 0, i32 1
  %11 = load i32, ptr %10, align 8, !tbaa !11
  %12 = icmp ult i32 %9, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %8
  store i32 2, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %36

14:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %15

15:                                               ; preds = %29, %14
  %16 = load i32, ptr %5, align 4, !tbaa !9
  %17 = icmp ult i32 %16, 2
  br i1 %17, label %19, label %18

18:                                               ; preds = %15
  store i32 5, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %32

19:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %20 = load i32, ptr %3, align 4, !tbaa !9
  %21 = load i32, ptr %5, align 4, !tbaa !9
  %22 = call noundef i32 @_ZNK6basisu15basisu_frontend35get_subblock_endpoint_cluster_indexEjj(ptr noundef nonnull align 8 dereferenceable(496) %7, i32 noundef %20, i32 noundef %21)
  store i32 %22, ptr %6, align 4, !tbaa !9
  %23 = getelementptr inbounds %"class.basisu::basisu_frontend", ptr %7, i32 0, i32 17
  %24 = load i32, ptr %6, align 4, !tbaa !9
  %25 = zext i32 %24 to i64
  %26 = call noundef nonnull align 8 dereferenceable(51) ptr @_ZN6basisu6vectorINS_15basisu_frontend27endpoint_cluster_etc_paramsEEixEm(ptr noundef nonnull align 8 dereferenceable(16) %23, i64 noundef %25)
  %27 = getelementptr inbounds %"struct.basisu::basisu_frontend::endpoint_cluster_etc_params", ptr %26, i32 0, i32 4
  %28 = getelementptr inbounds [2 x i8], ptr %27, i64 0, i64 0
  store i8 1, ptr %28, align 8, !tbaa !32
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %29

29:                                               ; preds = %19
  %30 = load i32, ptr %5, align 4, !tbaa !9
  %31 = add i32 %30, 1
  store i32 %31, ptr %5, align 4, !tbaa !9
  br label %15, !llvm.loop !33

32:                                               ; preds = %18
  br label %33

33:                                               ; preds = %32
  %34 = load i32, ptr %3, align 4, !tbaa !9
  %35 = add i32 %34, 1
  store i32 %35, ptr %3, align 4, !tbaa !9
  br label %8, !llvm.loop !35

36:                                               ; preds = %13
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(51) ptr @_ZN6basisu6vectorINS_15basisu_frontend27endpoint_cluster_etc_paramsEEixEm(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZNK6basisu15basisu_frontend35get_subblock_endpoint_cluster_indexEjj(ptr noundef nonnull align 8 dereferenceable(496), i32 noundef, i32 noundef) #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 = { 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 = { 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 88}
!12 = !{!"_ZTSN6basisu15basisu_frontendE", !13, i64 0, !10, i64 88, !10, i64 92, !14, i64 96, !14, i64 97, !14, i64 98, !10, i64 100, !10, i64 104, !17, i64 112, !18, i64 128, !18, i64 144, !18, i64 160, !19, i64 176, !22, i64 216, !22, i64 232, !23, i64 248, !22, i64 264, !24, i64 280, !25, i64 296, !22, i64 312, !18, i64 328, !22, i64 344, !23, i64 360, !22, i64 376, !26, i64 392, !27, i64 408, !28, i64 424, !29, i64 440, !30, i64 456}
!13 = !{!"_ZTSN6basisu15basisu_frontend6paramsE", !10, i64 0, !6, i64 8, !10, i64 16, !10, i64 20, !10, i64 24, !14, i64 28, !14, i64 29, !14, i64 30, !14, i64 31, !14, i64 32, !14, i64 33, !14, i64 34, !6, i64 40, !10, i64 48, !10, i64 52, !14, i64 56, !15, i64 60, !16, i64 64, !6, i64 72, !6, i64 80}
!14 = !{!"bool", !7, i64 0}
!15 = !{!"float", !7, i64 0}
!16 = !{!"_ZTSN6basist18basis_texture_typeE", !7, i64 0}
!17 = !{!"_ZTSN6basisu6vectorINS_11pixel_blockEEE", !6, i64 0, !10, i64 8, !10, i64 12}
!18 = !{!"_ZTSN6basisu6vectorINS_9etc_blockEEE", !6, i64 0, !10, i64 8, !10, i64 12}
!19 = !{!"_ZTSN6basisu17tree_vector_quantINS_3vecILj6EfEEEE", !20, i64 0, !21, i64 16, !10, i64 32}
!20 = !{!"_ZTSN6basisu6vectorINS_17tree_vector_quantINS_3vecILj6EfEEE9tsvq_nodeEEE", !6, i64 0, !10, i64 8, !10, i64 12}
!21 = !{!"_ZTSN6basisu6vectorISt4pairINS_3vecILj6EfEEmEEE", !6, i64 0, !10, i64 8, !10, i64 12}
!22 = !{!"_ZTSN6basisu6vectorINS0_IjEEEE", !6, i64 0, !10, i64 8, !10, i64 12}
!23 = !{!"_ZTSN6basisu6vectorIhEE", !6, i64 0, !10, i64 8, !10, i64 12}
!24 = !{!"_ZTSN6basisu6vectorINS_15basisu_frontend27endpoint_cluster_etc_paramsEEE", !6, i64 0, !10, i64 8, !10, i64 12}
!25 = !{!"_ZTSN6basisu6vectorINS_5vec2UEEE", !6, i64 0, !10, i64 8, !10, i64 12}
!26 = !{!"_ZTSN6basisu6vectorIN6basist38etc1_global_selector_codebook_entry_idEEE", !6, i64 0, !10, i64 8, !10, i64 12}
!27 = !{!"_ZTSN6basisu6vectorIbEE", !6, i64 0, !10, i64 8, !10, i64 12}
!28 = !{!"_ZTSN6basisu6vectorIjEE", !6, i64 0, !10, i64 8, !10, i64 12}
!29 = !{!"_ZTSN6basisu6vectorINS_15basisu_frontend27subblock_endpoint_quant_errEEE", !6, i64 0, !10, i64 8, !10, i64 12}
!30 = !{!"_ZTSSt5mutex", !31, i64 0}
!31 = !{!"_ZTSSt12__mutex_base", !7, i64 0}
!32 = !{!14, !14, i64 0}
!33 = distinct !{!33, !34}
!34 = !{!"llvm.loop.mustprogress"}
!35 = distinct !{!35, !34}


; 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 uwtable
define dso_local void @_ZN6basisu15basisu_frontend8finalizeEv(ptr noundef nonnull align 8 dereferenceable(496) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 88
  %3 = load i32, ptr %2, align 8, !tbaa !5
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %._crit_edge, label %.preheader.lr.ph

.preheader.lr.ph:                                 ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 280
  br label %.preheader

.preheader:                                       ; preds = %.preheader.lr.ph, %.preheader
  %.09 = phi i32 [ 0, %.preheader.lr.ph ], [ %13, %.preheader ]
  %5 = tail call noundef i32 @_ZNK6basisu15basisu_frontend35get_subblock_endpoint_cluster_indexEjj(ptr noundef nonnull align 8 dereferenceable(496) %0, i32 noundef %.09, i32 noundef 0)
  %6 = zext i32 %5 to i64
  %7 = tail call noundef nonnull align 8 dereferenceable(51) ptr @_ZN6basisu6vectorINS_15basisu_frontend27endpoint_cluster_etc_paramsEEixEm(ptr noundef nonnull align 8 dereferenceable(16) %4, i64 noundef %6)
  %8 = getelementptr inbounds i8, ptr %7, i64 48
  store i8 1, ptr %8, align 8, !tbaa !30
  %9 = tail call noundef i32 @_ZNK6basisu15basisu_frontend35get_subblock_endpoint_cluster_indexEjj(ptr noundef nonnull align 8 dereferenceable(496) %0, i32 noundef %.09, i32 noundef 1)
  %10 = zext i32 %9 to i64
  %11 = tail call noundef nonnull align 8 dereferenceable(51) ptr @_ZN6basisu6vectorINS_15basisu_frontend27endpoint_cluster_etc_paramsEEixEm(ptr noundef nonnull align 8 dereferenceable(16) %4, i64 noundef %10)
  %12 = getelementptr inbounds i8, ptr %11, i64 48
  store i8 1, ptr %12, align 8, !tbaa !30
  %13 = add nuw i32 %.09, 1
  %14 = load i32, ptr %2, align 8, !tbaa !5
  %15 = icmp ult i32 %13, %14
  br i1 %15, label %.preheader, label %._crit_edge, !llvm.loop !31

._crit_edge:                                      ; preds = %.preheader, %1
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(51) ptr @_ZN6basisu6vectorINS_15basisu_frontend27endpoint_cluster_etc_paramsEEixEm(ptr noundef nonnull align 8 dereferenceable(16), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZNK6basisu15basisu_frontend35get_subblock_endpoint_cluster_indexEjj(ptr noundef nonnull align 8 dereferenceable(496), i32 noundef, i32 noundef) 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" }
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" }

!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, !8, i64 88}
!6 = !{!"_ZTSN6basisu15basisu_frontendE", !7, i64 0, !8, i64 88, !8, i64 92, !12, i64 96, !12, i64 97, !12, i64 98, !8, i64 100, !8, i64 104, !15, i64 112, !16, i64 128, !16, i64 144, !16, i64 160, !17, i64 176, !20, i64 216, !20, i64 232, !21, i64 248, !20, i64 264, !22, i64 280, !23, i64 296, !20, i64 312, !16, i64 328, !20, i64 344, !21, i64 360, !20, i64 376, !24, i64 392, !25, i64 408, !26, i64 424, !27, i64 440, !28, i64 456}
!7 = !{!"_ZTSN6basisu15basisu_frontend6paramsE", !8, i64 0, !11, i64 8, !8, i64 16, !8, i64 20, !8, i64 24, !12, i64 28, !12, i64 29, !12, i64 30, !12, i64 31, !12, i64 32, !12, i64 33, !12, i64 34, !11, i64 40, !8, i64 48, !8, i64 52, !12, i64 56, !13, i64 60, !14, i64 64, !11, i64 72, !11, i64 80}
!8 = !{!"int", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"any pointer", !9, i64 0}
!12 = !{!"bool", !9, i64 0}
!13 = !{!"float", !9, i64 0}
!14 = !{!"_ZTSN6basist18basis_texture_typeE", !9, i64 0}
!15 = !{!"_ZTSN6basisu6vectorINS_11pixel_blockEEE", !11, i64 0, !8, i64 8, !8, i64 12}
!16 = !{!"_ZTSN6basisu6vectorINS_9etc_blockEEE", !11, i64 0, !8, i64 8, !8, i64 12}
!17 = !{!"_ZTSN6basisu17tree_vector_quantINS_3vecILj6EfEEEE", !18, i64 0, !19, i64 16, !8, i64 32}
!18 = !{!"_ZTSN6basisu6vectorINS_17tree_vector_quantINS_3vecILj6EfEEE9tsvq_nodeEEE", !11, i64 0, !8, i64 8, !8, i64 12}
!19 = !{!"_ZTSN6basisu6vectorISt4pairINS_3vecILj6EfEEmEEE", !11, i64 0, !8, i64 8, !8, i64 12}
!20 = !{!"_ZTSN6basisu6vectorINS0_IjEEEE", !11, i64 0, !8, i64 8, !8, i64 12}
!21 = !{!"_ZTSN6basisu6vectorIhEE", !11, i64 0, !8, i64 8, !8, i64 12}
!22 = !{!"_ZTSN6basisu6vectorINS_15basisu_frontend27endpoint_cluster_etc_paramsEEE", !11, i64 0, !8, i64 8, !8, i64 12}
!23 = !{!"_ZTSN6basisu6vectorINS_5vec2UEEE", !11, i64 0, !8, i64 8, !8, i64 12}
!24 = !{!"_ZTSN6basisu6vectorIN6basist38etc1_global_selector_codebook_entry_idEEE", !11, i64 0, !8, i64 8, !8, i64 12}
!25 = !{!"_ZTSN6basisu6vectorIbEE", !11, i64 0, !8, i64 8, !8, i64 12}
!26 = !{!"_ZTSN6basisu6vectorIjEE", !11, i64 0, !8, i64 8, !8, i64 12}
!27 = !{!"_ZTSN6basisu6vectorINS_15basisu_frontend27subblock_endpoint_quant_errEEE", !11, i64 0, !8, i64 8, !8, i64 12}
!28 = !{!"_ZTSSt5mutex", !29, i64 0}
!29 = !{!"_ZTSSt12__mutex_base", !9, i64 0}
!30 = !{!12, !12, i64 0}
!31 = distinct !{!31, !32}
!32 = !{!"llvm.loop.mustprogress"}


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