[PATCH v3] Do not abort compilation when dump file is /dev/*

[Alexandre Oliva]

Hello, Giuliano, thanks for turning my suggestion into a patch!

On Nov 19, 2021, Richard Biener <rguenther@suse.de> wrote:

>> +/* { dg-options "-fdump-ipa-clones -o /dev/null" } */

May I suggest actually checking that the ipa-clones dump file is created
with the same name and the location it would without -o /dev/null?  I
think just using any of the normal dump file scanners would do.

There's a larger set of tests in gcc.misc/outputs.exp, where this test
would be a slightly better fit.  Copying some of the tests under
"Driver-chosen aux outputs", and some of the link tests that use
'$oaout', changing them to use -o /dev/null without any changes to the
expected output file names, would give us more coverage of expected
behavior than just checking that we just don't get an error.

Thanks again,

-- 
Alexandre Oliva, happy hacker                https://FSFLA.org/blogs/lxo/
   Free Software Activist                       GNU Toolchain Engineer
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