; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R3Shapes/R3TriangleArray.ll (ZNK15R3TriangleArray8CentroidEv)

; 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.R3Point = type { [3 x double] }
%class.R3TriangleArray = type { %class.R3Surface, %class.RNArray, %class.RNArray.0, %class.R3Box }
%class.R3Surface = type { %class.R3Shape }
%class.R3Shape = type { ptr }
%class.RNArray = type { %class.RNVArray }
%class.RNVArray = type { ptr, i32, i32 }
%class.RNArray.0 = type { %class.RNVArray }
%class.R3Box = type { %class.R3Solid, %class.R3Point, %class.R3Point }
%class.R3Solid = type { %class.R3Shape }

@R3null_point = external global %class.R3Point, align 8

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; 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 ptr @_ZNK7RNArrayIP16R3TriangleVertexEixEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNK16R3TriangleVertex8PositionEv(ptr noundef nonnull align 8 dereferenceable(100)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK15R3TriangleArray8CentroidEv(ptr dead_on_unwind noalias writable sret(%class.R3Point) align 8 %0, ptr noundef nonnull align 8 dereferenceable(96) %1) unnamed_addr #2 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8
  call void @_ZN7R3PointC1ERKS_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) @R3null_point)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %7

7:                                                ; preds = %19, %2
  %8 = load i32, ptr %5, align 4, !tbaa !9
  %9 = getelementptr inbounds %class.R3TriangleArray, ptr %6, i32 0, i32 1
  %10 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %9)
  %11 = icmp slt i32 %8, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %22

13:                                               ; preds = %7
  %14 = getelementptr inbounds %class.R3TriangleArray, ptr %6, i32 0, i32 1
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = call noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexEixEi(ptr noundef nonnull align 8 dereferenceable(16) %14, i32 noundef %15)
  %17 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNK16R3TriangleVertex8PositionEv(ptr noundef nonnull align 8 dereferenceable(100) %16)
  %18 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointpLERKS_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %17)
  br label %19

19:                                               ; preds = %13
  %20 = load i32, ptr %5, align 4, !tbaa !9
  %21 = add nsw i32 %20, 1
  store i32 %21, ptr %5, align 4, !tbaa !9
  br label %7, !llvm.loop !11

22:                                               ; preds = %12
  %23 = getelementptr inbounds %class.R3TriangleArray, ptr %6, i32 0, i32 1
  %24 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %23)
  %25 = sitofp i32 %24 to double
  %26 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointdVEd(ptr noundef nonnull align 8 dereferenceable(24) %0, double noundef %25)
  ret void
}

declare void @_ZN7R3PointC1ERKS_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3

declare noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointpLERKS_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #3

declare noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointdVEd(ptr noundef nonnull align 8 dereferenceable(24), double noundef) #3

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 = { "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 #4 = { 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.R3Point = type { [3 x double] }

@R3null_point = external global %class.R3Point, align 8

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexEixEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNK16R3TriangleVertex8PositionEv(ptr noundef nonnull align 8 dereferenceable(100)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK15R3TriangleArray8CentroidEv(ptr dead_on_unwind noalias nonnull writable sret(%class.R3Point) align 8 %0, ptr noundef nonnull align 8 dereferenceable(96) %1) unnamed_addr #1 align 2 {
  tail call void @_ZN7R3PointC1ERKS_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) @R3null_point)
  %3 = getelementptr inbounds i8, ptr %1, i64 8
  %4 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %2
  %6 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
  %7 = sitofp i32 %6 to double
  %8 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointdVEd(ptr noundef nonnull align 8 dereferenceable(24) %0, double noundef %7)
  ret void

.lr.ph:                                           ; preds = %2, %.lr.ph
  %.03 = phi i32 [ %12, %.lr.ph ], [ 0, %2 ]
  %9 = tail call noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexEixEi(ptr noundef nonnull align 8 dereferenceable(16) %3, i32 noundef %.03)
  %10 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNK16R3TriangleVertex8PositionEv(ptr noundef nonnull align 8 dereferenceable(100) %9)
  %11 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointpLERKS_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %10)
  %12 = add nuw nsw i32 %.03, 1
  %13 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %.lr.ph, label %._crit_edge, !llvm.loop !5
}

declare void @_ZN7R3PointC1ERKS_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2

declare noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointpLERKS_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2

declare noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointdVEd(ptr noundef nonnull align 8 dereferenceable(24), double noundef) local_unnamed_addr #2

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 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 = { "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: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass