; LLVM IR from atlantis13579/Riemann :: Src/Geometry (GeometryAttributes)

; 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.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

@_ZN7Riemann14UVChannelNamesB5cxx11E = external dso_local global [8 x %"class.std::__cxx11::basic_string"], align 16

; 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 noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNK7Riemann23DynamicMeshAttributeSet20HasAttachedAttributeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(168), ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN7Riemann23DynamicMeshAttributeSet20NumEnabledUVChannelsEPNS_11DynamicMeshE(ptr noundef %0) #2 align 2 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = call noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452) %6)
  %8 = icmp ne ptr %7, null
  br i1 %8, label %10, label %9

9:                                                ; preds = %1
  store i32 0, ptr %2, align 4
  br label %31

10:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %25, %10
  %12 = load i32, ptr %4, align 4, !tbaa !9
  %13 = icmp slt i32 %12, 8
  br i1 %13, label %15, label %14

14:                                               ; preds = %11
  store i32 2, ptr %5, align 4
  br label %28

15:                                               ; preds = %11
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = call noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452) %16)
  %18 = load i32, ptr %4, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [8 x %"class.std::__cxx11::basic_string"], ptr @_ZN7Riemann14UVChannelNamesB5cxx11E, i64 0, i64 %19
  %21 = call noundef zeroext i1 @_ZNK7Riemann23DynamicMeshAttributeSet20HasAttachedAttributeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(168) %17, ptr noundef nonnull align 8 dereferenceable(32) %20)
  br i1 %21, label %24, label %22

22:                                               ; preds = %15
  %23 = load i32, ptr %4, align 4, !tbaa !9
  store i32 %23, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %28

24:                                               ; preds = %15
  br label %25

25:                                               ; preds = %24
  %26 = load i32, ptr %4, align 4, !tbaa !9
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %4, align 4, !tbaa !9
  br label %11, !llvm.loop !11

28:                                               ; preds = %22, %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  %29 = load i32, ptr %5, align 4
  switch i32 %29, label %33 [
    i32 2, label %30
    i32 1, label %31
  ]

30:                                               ; preds = %28
  store i32 8, ptr %2, align 4
  br label %31

31:                                               ; preds = %30, %28, %9
  %32 = load i32, ptr %2, align 4
  ret i32 %32

33:                                               ; preds = %28
  unreachable
}

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 = { 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 = 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.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

@_ZN7Riemann14UVChannelNamesB5cxx11E = external dso_local global [8 x %"class.std::__cxx11::basic_string"], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZNK7Riemann23DynamicMeshAttributeSet20HasAttachedAttributeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(168), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN7Riemann23DynamicMeshAttributeSet20NumEnabledUVChannelsEPNS_11DynamicMeshE(ptr noundef nonnull %0) local_unnamed_addr #1 align 2 {
  %2 = tail call noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452) %0)
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %.loopexit, label %.preheader.preheader

.preheader.preheader:                             ; preds = %1
  %3 = tail call noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452) %0)
  %4 = tail call noundef zeroext i1 @_ZNK7Riemann23DynamicMeshAttributeSet20HasAttachedAttributeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(168) %3, ptr noundef nonnull align 8 dereferenceable(32) @_ZN7Riemann14UVChannelNamesB5cxx11E)
  br i1 %4, label %.preheader.1, label %.loopexit

.preheader.1:                                     ; preds = %.preheader.preheader
  %5 = tail call noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452) %0)
  %6 = tail call noundef zeroext i1 @_ZNK7Riemann23DynamicMeshAttributeSet20HasAttachedAttributeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(168) %5, ptr noundef nonnull align 8 dereferenceable(32) getelementptr inbounds (i8, ptr @_ZN7Riemann14UVChannelNamesB5cxx11E, i64 32))
  br i1 %6, label %.preheader.2, label %.loopexit

.preheader.2:                                     ; preds = %.preheader.1
  %7 = tail call noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452) %0)
  %8 = tail call noundef zeroext i1 @_ZNK7Riemann23DynamicMeshAttributeSet20HasAttachedAttributeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(168) %7, ptr noundef nonnull align 8 dereferenceable(32) getelementptr inbounds (i8, ptr @_ZN7Riemann14UVChannelNamesB5cxx11E, i64 64))
  br i1 %8, label %.preheader.3, label %.loopexit

.preheader.3:                                     ; preds = %.preheader.2
  %9 = tail call noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452) %0)
  %10 = tail call noundef zeroext i1 @_ZNK7Riemann23DynamicMeshAttributeSet20HasAttachedAttributeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(168) %9, ptr noundef nonnull align 8 dereferenceable(32) getelementptr inbounds (i8, ptr @_ZN7Riemann14UVChannelNamesB5cxx11E, i64 96))
  br i1 %10, label %.preheader.4, label %.loopexit

.preheader.4:                                     ; preds = %.preheader.3
  %11 = tail call noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452) %0)
  %12 = tail call noundef zeroext i1 @_ZNK7Riemann23DynamicMeshAttributeSet20HasAttachedAttributeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(168) %11, ptr noundef nonnull align 8 dereferenceable(32) getelementptr inbounds (i8, ptr @_ZN7Riemann14UVChannelNamesB5cxx11E, i64 128))
  br i1 %12, label %.preheader.5, label %.loopexit

.preheader.5:                                     ; preds = %.preheader.4
  %13 = tail call noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452) %0)
  %14 = tail call noundef zeroext i1 @_ZNK7Riemann23DynamicMeshAttributeSet20HasAttachedAttributeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(168) %13, ptr noundef nonnull align 8 dereferenceable(32) getelementptr inbounds (i8, ptr @_ZN7Riemann14UVChannelNamesB5cxx11E, i64 160))
  br i1 %14, label %.preheader.6, label %.loopexit

.preheader.6:                                     ; preds = %.preheader.5
  %15 = tail call noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452) %0)
  %16 = tail call noundef zeroext i1 @_ZNK7Riemann23DynamicMeshAttributeSet20HasAttachedAttributeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(168) %15, ptr noundef nonnull align 8 dereferenceable(32) getelementptr inbounds (i8, ptr @_ZN7Riemann14UVChannelNamesB5cxx11E, i64 192))
  br i1 %16, label %.preheader.7, label %.loopexit

.preheader.7:                                     ; preds = %.preheader.6
  %17 = tail call noundef ptr @_ZN7Riemann11DynamicMesh10AttributesEv(ptr noundef nonnull align 8 dereferenceable(452) %0)
  %18 = tail call noundef zeroext i1 @_ZNK7Riemann23DynamicMeshAttributeSet20HasAttachedAttributeERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(168) %17, ptr noundef nonnull align 8 dereferenceable(32) getelementptr inbounds (i8, ptr @_ZN7Riemann14UVChannelNamesB5cxx11E, i64 224))
  %spec.select = select i1 %18, i32 8, i32 7
  br label %.loopexit

.loopexit:                                        ; preds = %.preheader.7, %.preheader.preheader, %.preheader.1, %.preheader.2, %.preheader.3, %.preheader.4, %.preheader.5, %.preheader.6, %1
  %.1 = phi i32 [ 0, %1 ], [ 0, %.preheader.preheader ], [ 1, %.preheader.1 ], [ 2, %.preheader.2 ], [ 3, %.preheader.3 ], [ 4, %.preheader.4 ], [ 5, %.preheader.5 ], [ 6, %.preheader.6 ], [ %spec.select, %.preheader.7 ]
  ret i32 %.1
}

attributes #0 = { 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 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)"}


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