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[Bug rtl-optimization/23478] [3.4 regression] Miscompilation due to reloading of a var that is also used in EH pad
- From: "jakub at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Aug 2005 18:51:23 -0000
- Subject: [Bug rtl-optimization/23478] [3.4 regression] Miscompilation due to reloading of a var that is also used in EH pad
- References: <20050819110806.23478.jakub@redhat.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From jakub at redhat dot com 2005-08-19 18:51 -------
It can't be inserted just on abnormal critical edges:
gcc_assert (!((e->flags & EDGE_ABNORMAL) && EDGE_CRITICAL_P (e)));
So I guess we could insert it on the EH edges if !EDGE_CRITICAL_P and only
only avoid caller-saving it if EDGE_CRITICAL_P.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23478