SIMD helper header, modified add in THTensorMath to check dispatch

Author: rguthrie3

generic/THTensorMath.c

@@ -460,7 +460,7 @@ accreal THTensor_(prodall)(THTensor *tensor)
  return prod;
 }
 
-void THTensor_(add)(THTensor *r_, THTensor *t, real value)
+void THTensor_(add_Default)(THTensor *r_, THTensor *t, real value)
 {
  THTensor_(resizeAs)(r_, t);
  if (THTensor_(isContiguous)(r_) && THTensor_(isContiguous)(t) && THTensor_(nElement)(r_) == THTensor_(nElement)(t)) {

generic/THTensorMath.h

@@ -30,7 +30,7 @@ TH_API accreal THTensor_(prodall)(THTensor *t);
 TH_API void THTensor_(neg)(THTensor *self, THTensor *src);
 TH_API void THTensor_(cinv)(THTensor *self, THTensor *src);
 
-TH_API void THTensor_(add)(THTensor *r_, THTensor *t, real value);
+TH_API void THTensor_(add_Default)(THTensor *r_, THTensor *t, real value);
 TH_API void THTensor_(sub)(THTensor *self, THTensor *src, real value);
 TH_API void THTensor_(mul)(THTensor *r_, THTensor *t, real value);
 TH_API void THTensor_(div)(THTensor *r_, THTensor *t, real value);