Small perform speed up

theano/sandbox/cuda/basic_ops.py

@@ -2610,8 +2610,10 @@ class GpuAdvancedIncSubtensor1(tensor.AdvancedIncSubtensor1, GpuOp):
             # list of index.
             if y.ndim == x.ndim:
                 assert len(y) == len(idx)
-                for (j, i) in enumerate(idx):
+                j = 0
+                for i in idx:
                     x[i] = y[j]
+                    j += 1
             else:
                 for i in idx:
                     x[i] = y
@@ -2622,12 +2624,15 @@ class GpuAdvancedIncSubtensor1(tensor.AdvancedIncSubtensor1, GpuOp):
             if y.ndim == x.ndim:
                 if len(y) == 1:
                     # Allow broadcasting of y[0]
+                    y_0 = y[0]
                     for i in idx:
-                        x[i] += y[0]
+                        x[i] += y_0
                 else:
                     assert len(y) == len(idx)
-                    for (j, i) in enumerate(idx):
+                    j = 0
+                    for i in idx:
                         x[i] += y[j]
+                        j += 1
             else:
                 for i in idx:
                     x[i] += y

theano/tensor/subtensor.py

@@ -1923,12 +1923,15 @@ class AdvancedIncSubtensor1(Op):
         if y.ndim == x.ndim:
             if len(y) == 1:
                 # Allow broadcasting of y[0]
+                y_0 = y[0]
                 for i in idx:
-                    x[i] += y[0]
+                    x[i] += y_0
             else:
                 assert len(y) == len(idx)
-                for (j, i) in enumerate(idx):
+                j = 0
+                for i in idx:
                     x[i] += y[j]
+                    j += 1
         else:
             for i in idx:
                 x[i] += y