BLAS: Removed nasty temporary in GEMM...

include/isaac/jit/syntax/expression/expression.h

@@ -81,6 +81,7 @@ struct array_holder
 {
   int_t start;
   handle_t handle;
+  array_base* base;
 };
 
 class expression_tree

lib/jit/syntax/expression/expression.cpp

@@ -47,6 +47,7 @@ expression_tree::node::node(value_scalar const & x) : type(VALUE_SCALAR_TYPE), d
 expression_tree::node::node(array_base const & x) : type(DENSE_ARRAY_TYPE), dtype(x.dtype()), shape(x.shape())
 {
   array.start = x.start();
+  array.base = (array_base*)&x;
   driver::Buffer::handle_type const & h = x.data().handle();
   switch(h.backend()){
     case driver::OPENCL: array.handle.cl = h.cl(); break;

lib/jit/syntax/expression/preset.cpp

@@ -119,7 +119,7 @@ matrix_product::args matrix_product::check(expression_tree::data_type const & tr
     }
     if(result.C == NULL)
         result.C = &left;
-    else if(result.C != &left)
+    else if(result.C->array.base != left.array.base)
         result.C = NULL;
     return result;
 }