Yoshiki SATO <[email protected]> wrote on 05/01/2013 11:22:06 PM:
>
> Hello all,
>
> x10c++ generates a code including statement expressions in which an
> object with a destructor is used. Unfortunately, branching out of
> the statement due to the destructor is not allowed by most of C++
> compilers such as Intel icc, Fujitsu FCCpx although g++ can compile it.
>
....omitted code...
>
> I get the following errors by using both Intel and fujitsu C++ compilers.
>
...omitted errors...
>
> Of course manually transforming statement expressions into a set of
> statements can resolve that. Is there any configuration or compile
> option to disable the use of statement expressions in x10c++ 2.3.
>
Yes. You if you invoke x10c++ with -FLATTEN_EXPRESSIONS=true the X10
compiler will avoid the use of statement expressions.
This comes at the cost of introducing lots of temporary local variables (to
hold intermediate expressions). In principle this should not be a problem,
as the C++ compiler should be able to optimize all of them away. We have
observed it causing some degradations with older versions of g++ (which is
why it is not the default), but hopefully this won't impact icc or FCCpx.
regards,
--dave
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