From: Jan Hubicka <jh@suse.cz>
To: dnovillo@redhat.com, gcc@gcc.gnu.org
Subject: aliasing question
Date: Tue, 07 Sep 2004 10:51:00 -0000 [thread overview]
Message-ID: <20040907105142.GD28472@kam.mff.cuni.cz> (raw)
Hi,
while looking into releasing more SSA_NAMEs I run across following code
(in combining combine.i with -O2 on i686).
ssa dump says:
# V_MUST_DEF <value_49>;
value = T.4862_48;
and alias1 dump:
# value_229 = V_MAY_DEF <value_19>;
value = T.4862_48;
Why the MUST_DEF is getting converted to MAY_DEF in such a obvious case
for MUST_DEF?
I will keep copy of the dumps around in the case you are interested to
look into it. It is one of places (actually first nontrivial) where we
are leakign SSA_NAME unfreeed.
Honza
next reply other threads:[~2004-09-07 10:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-07 10:51 Jan Hubicka [this message]
2004-09-07 14:22 ` Diego Novillo
2004-09-08 20:05 ` Jan Hubicka
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