On 07/16/14 12:41, Yi Yang wrote:
There are a few if statements in cfgrtl.c that are very fragile in the
sense that introducing an irrelevant edge flag breaks things.
This patch rewrites them to avoid such breakage.
--
2014-07-16 Yi Yang <ahyan...@google.com>
gcc:
* cfgrtl.c (rtl_verify_edges, purge_dead_edges): Rewrite certain
if statements.
One could easily argue that 'fragile' in this context is what we
actually want. Ie, if someone introduces a new edge flag, they ought to
be looking at how that impacts verification.
I strongly prefer to have developers explicitly handle any new edge
flags in the verification code. If they are truly irrelevant for
verification, it's easy enough to filter them out in the appropriate
verification routines.
Jeff
