Re: [PATCH] Add FRE pass to the early optimization pipeline

2011-04-27 Thread H.J. Lu
On Wed, Mar 23, 2011 at 7:17 AM, Richard Guenther wrote: > > For quite some releases we'd wanted some (memory) CSE optimization > during early opts.  Currently we rely heavily on SRA which doesn't > always fulfill the "make code only smaller" promises which is > what early opts should do to improv

[PATCH] Add FRE pass to the early optimization pipeline

2011-03-23 Thread Richard Guenther
For quite some releases we'd wanted some (memory) CSE optimization during early opts. Currently we rely heavily on SRA which doesn't always fulfill the "make code only smaller" promises which is what early opts should do to improve precision of function size estimates and to improve abstraction r