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[Bug tree-optimization/53438] [4.7/4.8 Regression] Bitfield store replaced with full-byte store
- From: "wschmidt at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 25 May 2012 15:37:27 +0000
- Subject: [Bug tree-optimization/53438] [4.7/4.8 Regression] Bitfield store replaced with full-byte store
- Auto-submitted: auto-generated
- References: <bug-53438-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53438
--- Comment #14 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2012-05-25 15:37:27 UTC ---
(In reply to comment #13)
> It didn't work because you've used the patch as svn commit message instead of
> ChangeLog entry.
Whoops, found a new kind of mistake to make. :)
> Anyway, would it be possible to have a testcase for the gcc testsuite too?
I've been trying, but so far haven't been able to come up with anything other
than the enormous "reduced" testcase. Seems it may require a combination of
templates and inlining to get the bitfield access in the right form to exhibit
the bug, but I haven't figured it out yet. Ideas welcome.