In an -O3 bootstrap, out.clauses are reported as uninitialized. GCC is
not smart enough to realize accesses to the uninitialized members will
never happen. It shouldn't be too expensive to initialize them all, so
this is what this patch does. Regstrapped on x86_64-linux-gnu and
i686-linux-gnu. Ok to install?
for gcc/ChangeLog
from Alexandre Oliva <aol...@redhat.com>
* ipa-inline-analysis.c (read_predicate): Initialize all clauses.
Index: gcc/ipa-inline-analysis.c
===================================================================
--- gcc/ipa-inline-analysis.c.orig 2011-05-18 03:29:08.295328903 -0300
+++ gcc/ipa-inline-analysis.c 2011-05-18 03:29:38.187242177 -0300
@@ -2289,6 +2289,11 @@ read_predicate (struct lto_input_block *
clause = out.clause[k++] = lto_input_uleb128 (ib);
}
while (clause);
+
+ /* Zero-initialize the remaining clauses in OUT. */
+ while (k <= MAX_CLAUSES)
+ out.clause[k++] = 0;
+
return out;
}
--
Alexandre Oliva, freedom fighter http://FSFLA.org/~lxoliva/
You must be the change you wish to see in the world. -- Gandhi
Be Free! -- http://FSFLA.org/ FSF Latin America board member
Free Software Evangelist Red Hat Brazil Compiler Engineer
