Merge topic 'release-vtkImageInterpolation-floating-point-differences-on-ARM'

17f9a45a Proposed fix for floating-point differences that occurs in arm64

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Ben Boeckel <ben.boeckel@kitware.com>
Acked-by: David Gobbi <david.gobbi@gmail.com>
Acked-by: Sean McBride <sean@rogue-research.com>
Merge-request: !8162

Imaging/Core/vtkImageInterpolatorInternals.h

@@ -92,6 +92,8 @@ struct vtkInterpolationMath
 #define VTK_INTERPOLATE_64BIT_FLOOR
 #elif defined __ppc64__ || defined __x86_64__ || defined _M_X64
 #define VTK_INTERPOLATE_64BIT_FLOOR
+#elif defined __arm64__ || defined __aarch64__
+#define VTK_INTERPOLATE_64BIT_FLOOR
 #elif defined __ppc__ || defined sparc || defined mips
 #define VTK_INTERPOLATE_32BIT_FLOOR
 #elif defined i386 || defined _M_IX86