This is the mail archive of the
gcc-help@gcc.gnu.org
mailing list for the GCC project.
FAIL in movm pattern
- From: Aurelien Buhrig <aurelien dot buhrig dot gcc at gmail dot com>
- To: gcc-help at gcc dot gnu dot org
- Date: Thu, 6 Oct 2011 12:23:38 +0200
- Subject: FAIL in movm pattern
Hi,
When is it safe to generate a FAIL in the define_expand of a mov pattern?
Is it enough to test !can_create_pseudo_p() before a FAIL ?
If no such test is performed, some mov insns can be omitted (ex:
expand_call/store_one_arg), without any error message or warning and
it can be difficult to debug it.
Is it a desirable behavior?
Thanks,
Aurélien