[gfortran,patch] Inline remaining allocation/deallocation routines

["François-Xavier Coudert" <fxcoudert at gmail dot com>]

Hi all,

Following the removal of _gfortran_internal_free and
_gfortran_internal_malloc and the switch to emitting inline code for
them, here is a patch that removes the last front-end calls to
routines in libgfortran/runtime/memory.c. This is done to:
  * allow further optimisation by the middle-end
  * in particular, there are cases where (with current mainline) we
create STATUS variable that are passed to the library and then
discarded (for failproof deallocation at the end of procedures); in
this case, the front-end now doesn't emit the unnecessary code
  * the new scheme allows for easy instrumentalisation of the
allocation/deallocation routines. I intend to provide (in 4.4) an
-fmem-check option that registers allocations and deallocations,
allowing the detection of memory leaks.

Built (not bootstrapped) and regtested on i686-darwin. I'm in not
position to compile and run cp2k and other "extended" testsuites, if
anyone has time and resources to do it, I'd appreciate it.

OK to commit? (This will also require approval from a middle-end maintainer.)

FX





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