[Patch, Fortran] PRs 36132, 29952, 36909 - optional array arg; temp array; missed opt

[Ralf Wildenhues]

Hello Tobias,

a couple of typing nits:

* Tobias Burnus wrote on Sun, Jul 27, 2008 at 10:15:13AM CEST:
> --- gcc/fortran/lang.opt	(Revision 138185)
> +++ gcc/fortran/lang.opt	(Arbeitskopie)
> @@ -156,6 +156,10 @@ fblas-matmul-limit=
>  Fortran RejectNegative Joined UInteger
>  -fblas-matmul-limit=<n>        Size of the smallest matrix for which matmul will use BLAS
>  
> +fcheck-array-temporaries
> +Fortran
> +Produce a warning at runtime if a array temporary has been created for a procedure argument

an array temporary

> --- gcc/fortran/invoke.texi	(Revision 138185)
> +++ gcc/fortran/invoke.texi	(Arbeitskopie)

> @@ -1168,6 +1168,17 @@ the compilation of the main program.
>  In the future this may also include other forms of checking, e.g., checking
>  substring references.
>  
> +
> +@item fcheck-array-temporaries
> +@opindex @code{fcheck-array-temporaries}
> +@cindex checking array temporaries
> +Warns at run time when for passing an actual argument a temporary array
> +had to be generated. The information generated by this warning is
> +sometimes useful in optimization, in order to avoid such temporaries.

for optimization

> +Note: The warning is only printed once per location.

Cheers,
Ralf