Clearer array_expression with hopefully lower overhead.

Also removed pyc's

python/autotune/pysrc/genetic.py

@@ -99,9 +99,9 @@ class GeneticOperators(object):
                             bincode = bincode + [str(random.randint(0,1)) for i in range(x)]
                     parameters = self.decode(bincode)
                     template = self.Template(*parameters)
-                    symbolic_expressions = atd.symbolic_expression_container(self.symbolic)
-                    registers_usage = template.registers_usage(symbolic_expressions)/4
-                    lmem_usage = template.lmem_usage(symbolic_expressions)
+                    array_expressions = atd.array_expression_container(self.symbolic)
+                    registers_usage = template.registers_usage(array_expressions)/4
+                    lmem_usage = template.lmem_usage(array_expressions)
                     local_size = parameters[1]*parameters[3]
                     occupancy_record = misc_tools.OccupancyRecord(self.device, local_size, lmem_usage, registers_usage)
                     if not misc_tools.skip(template, self.symbolic):

python/autotune/pysrc/misc_tools.py

@@ -197,21 +197,21 @@ class OccupancyRecord:
 
 def skip(template, symbolic):
     device = symbolic.context.queues[0].device
-    symbolic_expressions = atd.symbolic_expression_container(symbolic)
-    registers_usage = template.registers_usage(symbolic_expressions)/4
-    lmem_usage = template.lmem_usage(symbolic_expressions)
+    array_expressions = atd.array_expression_container(symbolic)
+    registers_usage = template.registers_usage(array_expressions)/4
+    lmem_usage = template.lmem_usage(array_expressions)
     local_size = template.local_size_0*template.local_size_1
     occupancy_record = OccupancyRecord(device, local_size, lmem_usage, registers_usage)
-    if template.check_invalid(symbolic_expressions, device) or occupancy_record.occupancy < 15:
+    if template.check_invalid(array_expressions, device) or occupancy_record.occupancy < 15:
         return True
     return False
 
 def benchmark(template, symbolic):
     queue = symbolic.context.queues[0]
     device = queue.device
-    symbolic_expressions = atd.symbolic_expression_container(symbolic)
-    registers_usage = template.registers_usage(symbolic_expressions)/4
-    lmem_usage = template.lmem_usage(symbolic_expressions)
+    array_expressions = atd.array_expression_container(symbolic)
+    registers_usage = template.registers_usage(array_expressions)/4
+    lmem_usage = template.lmem_usage(array_expressions)
     local_size = template.local_size_0*template.local_size_1
     occupancy_record = OccupancyRecord(device, local_size, lmem_usage, registers_usage)
     if occupancy_record.occupancy < 15 :