; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R3Shapes/R3MeshProperty.ll (ZNK14R3MeshProperty12NonZeroCountEv)

; 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"

%struct.R3MeshProperty = type { ptr, [1024 x i8], i32, ptr, double, double, double, double, double, double }

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef i32 @_ZNK6R3Mesh9NVerticesEv(ptr noundef nonnull align 8 dereferenceable(272)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZNK14R3MeshProperty12NonZeroCountEv(ptr noundef nonnull align 8 dereferenceable(1096) %0) #2 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = 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
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %6

6:                                                ; preds = %34, %1
  %7 = load i32, ptr %4, align 4, !tbaa !9
  %8 = getelementptr inbounds %struct.R3MeshProperty, ptr %5, i32 0, i32 0
  %9 = load ptr, ptr %8, align 8, !tbaa !11
  %10 = call noundef i32 @_ZNK6R3Mesh9NVerticesEv(ptr noundef nonnull align 8 dereferenceable(272) %9)
  %11 = icmp slt i32 %7, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %6
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  br label %37

13:                                               ; preds = %6
  %14 = getelementptr inbounds %struct.R3MeshProperty, ptr %5, i32 0, i32 3
  %15 = load ptr, ptr %14, align 8, !tbaa !14
  %16 = load i32, ptr %4, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds double, ptr %15, i64 %17
  %19 = load double, ptr %18, align 8, !tbaa !15
  %20 = fcmp oeq double %19, -1.000000e+00
  br i1 %20, label %21, label %22

21:                                               ; preds = %13
  br label %34

22:                                               ; preds = %13
  %23 = getelementptr inbounds %struct.R3MeshProperty, ptr %5, i32 0, i32 3
  %24 = load ptr, ptr %23, align 8, !tbaa !14
  %25 = load i32, ptr %4, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds double, ptr %24, i64 %26
  %28 = load double, ptr %27, align 8, !tbaa !15
  %29 = fcmp oeq double %28, 0.000000e+00
  br i1 %29, label %30, label %31

30:                                               ; preds = %22
  br label %34

31:                                               ; preds = %22
  %32 = load i32, ptr %3, align 4, !tbaa !9
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %3, align 4, !tbaa !9
  br label %34

34:                                               ; preds = %31, %30, %21
  %35 = load i32, ptr %4, align 4, !tbaa !9
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr %4, align 4, !tbaa !9
  br label %6, !llvm.loop !16

37:                                               ; preds = %12
  %38 = load i32, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret i32 %38
}

attributes #0 = { inlinehint 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, !6, i64 0}
!12 = !{!"_ZTS14R3MeshProperty", !6, i64 0, !7, i64 8, !10, i64 1032, !6, i64 1040, !13, i64 1048, !13, i64 1056, !13, i64 1064, !13, i64 1072, !13, i64 1080, !13, i64 1088}
!13 = !{!"double", !7, i64 0}
!14 = !{!12, !6, i64 1040}
!15 = !{!13, !13, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"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: inlinehint mustprogress uwtable
declare dso_local noundef i32 @_ZNK6R3Mesh9NVerticesEv(ptr noundef nonnull align 8 dereferenceable(272)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZNK14R3MeshProperty12NonZeroCountEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(1096) %0) local_unnamed_addr #1 align 2 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %3 = tail call noundef i32 @_ZNK6R3Mesh9NVerticesEv(ptr noundef nonnull align 8 dereferenceable(272) %2)
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %5 = getelementptr inbounds i8, ptr %0, i64 1040
  br label %6

._crit_edge:                                      ; preds = %6, %1
  %.06.lcssa = phi i32 [ 0, %1 ], [ %.1, %6 ]
  ret i32 %.06.lcssa

6:                                                ; preds = %.lr.ph, %6
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %6 ]
  %.069 = phi i32 [ 0, %.lr.ph ], [ %.1, %6 ]
  %7 = load ptr, ptr %5, align 8, !tbaa !12
  %8 = getelementptr inbounds double, ptr %7, i64 %indvars.iv
  %9 = load double, ptr %8, align 8, !tbaa !13
  %10 = fcmp une double %9, -1.000000e+00
  %11 = fcmp une double %9, 0.000000e+00
  %or.cond.not = and i1 %10, %11
  %12 = zext i1 %or.cond.not to i32
  %.1 = add nuw nsw i32 %.069, %12
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %13 = load ptr, ptr %0, align 8, !tbaa !5
  %14 = tail call noundef i32 @_ZNK6R3Mesh9NVerticesEv(ptr noundef nonnull align 8 dereferenceable(272) %13)
  %15 = sext i32 %14 to i64
  %16 = icmp slt i64 %indvars.iv.next, %15
  br i1 %16, label %6, label %._crit_edge, !llvm.loop !14
}

attributes #0 = { inlinehint 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 = { 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)"}
!5 = !{!6, !7, i64 0}
!6 = !{!"_ZTS14R3MeshProperty", !7, i64 0, !8, i64 8, !10, i64 1032, !7, i64 1040, !11, i64 1048, !11, i64 1056, !11, i64 1064, !11, i64 1072, !11, i64 1080, !11, i64 1088}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"double", !8, i64 0}
!12 = !{!6, !7, i64 1040}
!13 = !{!11, !11, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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