This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug c++/33887] [4.1/4.2/4.3 Regression] Reference to bitfield gets wrong value when optimizing
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Dec 2007 22:47:39 -0000
- Subject: [Bug c++/33887] [4.1/4.2/4.3 Regression] Reference to bitfield gets wrong value when optimizing
- References: <bug-33887-1313@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #14 from rguenth at gcc dot gnu dot org 2007-12-12 22:47 -------
Great. That doesn't make too much sense ;) Because the testcase in comment #7
cannot be "optimized" on the tree level, but I see it is wrongly expanded to
RTL instead.
Now, the revisions are
103956: make tree-PRE smarter, looking through loads
119760: mem-ssa merge (my favorite)
126149: SCCVN merge
nothing expansion related or FE specific. Bah.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33887