Require GPU backends to implement copy to shared/texture the same way we do for constant. Can throw exception if not implemented.

Author: isazi

kernel_tuner/backends/backend.py

@@ -37,7 +37,7 @@ def run_kernel(self, func, gpu_args, threads, grid, stream):
     @abstractmethod
     def memset(self, allocation, value, size):
         pass
-    
+
     @abstractmethod
     def memcpy_dtoh(self, dest, src):
         pass
@@ -57,11 +57,11 @@ def __init__(self, device, iterations, compiler_options, observers):
     def copy_constant_memory_args(self, cmem_args):
         pass
 
-    # @abstractmethod
+    @abstractmethod
     def copy_shared_memory_args(self, smem_args):
         pass
 
-    # @abstractmethod
+    @abstractmethod
     def copy_texture_memory_args(self, texmem_args):
         pass