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[Bug fortran/44742] ICE in gfc_conv_array_initializer
- From: "ohl at physik dot uni-wuerzburg dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 6 Jul 2010 07:38:54 -0000
- Subject: [Bug fortran/44742] ICE in gfc_conv_array_initializer
- References: <bug-44742-15192@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #12 from ohl at physik dot uni-wuerzburg dot de 2010-07-06 07:38 -------
(In reply to comment #10)
> It is not particularly efficient to use a huge static variable. [...] initialization at run time is the better choice for large arrays. The best solution for PARAMETER depends on the purpose.
In the real-life application, the non-trivial PARAMETER values are computed by
an external code generator to match the code and its impossible to compute them
in Fortran at runtime.
It would be possible to read the values from a separate file generated together
with the code, but it's tedious and introduces another failure mode. However,
I cannot see that this would be more efficient than loading the equivalent data
sections. Furthermore, declaring the data as PARAMETER helps the optimizer and
OpenMP, doesn't it?
--
ohl at physik dot uni-wuerzburg dot de changed:
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CC| |ohl at physik dot uni-
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44742