This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/56476] ARM volatile writes/str creates superfluous and uncalled for read/ldr with -Os
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 27 Feb 2013 19:41:43 +0000
- Subject: [Bug tree-optimization/56476] ARM volatile writes/str creates superfluous and uncalled for read/ldr with -Os
- Auto-submitted: auto-generated
- References: <bug-56476-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56476
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Component|target |tree-optimization
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-02-27 19:41:43 UTC ---
The tree pass CSElim is doing this for some reason. I think it forgot to check
for volatileness.