[Patch, fortran/libgfortran] ABI cleanup for ALLOCATE

[Janne Blomqvist]

:ADDPATCH fortran:

Hi,

the attached patch does some ABI cleanup for the parts of libgfortran 
that support the ALLOCATE statement. Currently we have separate 
functions for 32 and 64-bit sizes. However, on 64-bit targets we always 
use the 64-bit variants and on 32-bit targets we always use the 32-bit 
variant. So it's a bit pointless (?) to keep both in the library. The 
patch changes the frontend and library to use the correct 
index_integer_type for sizes (the same type that array descriptors use), 
and removes the 64-bit specific symbols.

As to why do something like this instead of fixing real bugs, now that 
we have symbol versioning we have until the 4.3 release to do whatever 
ABI fixing we want, after that we are stuck with supporting the ABI for 
a while.

Regtested on i686-pc-linux-gnu. It would be nice if someone with a 
64-bit system could test this, and also checking that generating 32-bit 
code using the 64-bit compiler works correctly. After that, Ok for trunk?

-- 
Janne Blomqvist
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