This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug middle-end/16660] attribute((aligned)) doesn't work for variables on the stack for greater than required alignement
- From: "hjl at lucon dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Oct 2007 22:04:27 -0000
- Subject: [Bug middle-end/16660] attribute((aligned)) doesn't work for variables on the stack for greater than required alignement
- References: <bug-16660-1824@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from hjl at lucon dot org 2007-10-03 22:04 -------
What is the performance impact of
http://gcc.gnu.org/ml/gcc-patches/2007-05/msg01167.html
Intel compiler has a very efficient way to align the stack:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28074
It saves stack pointer in frame pointer. Can we implement it for suitable
cases/backends and properly handle
1. tail call optimization.
2. stack unwind.
3. nested functions.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16660