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Make product eval-at-once.

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* Make product EvalAtOnce in cases OuterProduct, GemmProduct and
  GemvProduct
* Ensure that product evaluators are nested inside EvalToTemp
  evaluator
* As temporary kludge, evaluate expression to temporary in AllAtOnce
  traversal and pass expression operator to evalTo()
This commit is contained in:
Jitse Niesen
2012-06-29 13:49:25 +01:00
parent 2393ceb380
commit d0b873822f
4 changed files with 173 additions and 91 deletions
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5
test/evaluators.cpp
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@@ -65,6 +65,11 @@ void test_evaluators()
VERIFY_IS_APPROX_EVALUATOR2(d, s * prod(a,b), s * a*b);
VERIFY_IS_APPROX_EVALUATOR2(d, prod(a,b).transpose(), (a*b).transpose());
VERIFY_IS_APPROX_EVALUATOR2(d, prod(a,b) + prod(b,c), a*b + b*c);
// check that prod works even with aliasing present
c = a*a;
copy_using_evaluator(a, prod(a,a));
VERIFY_IS_APPROX(a,c);
}
{