This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/52415] memcpy to local variable generates unnecessary stack frame for armv7
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 28 Feb 2012 11:45:04 +0000
- Subject: [Bug target/52415] memcpy to local variable generates unnecessary stack frame for armv7
- Auto-submitted: auto-generated
- References: <bug-52415-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52415
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-02-28
Ever Confirmed|0 |1
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-02-28 11:45:04 UTC ---
This is I believe because ARM is a STRICT_ALIGNMENT target and we thus do
not transform the memcpy on the tree level. On the tree level nothing
guarantees that 'p' is properly aligned.