Re: [PATCH] Ignore CLOBBER stmts in ipa-split (PR tree-optimization/52019)

2012-02-25 Thread Markus Trippelsdorf
On 2012.02.23 at 15:31 +0100, Richard Guenther wrote: > On Thu, 23 Feb 2012, Jakub Jelinek wrote: > > > Hi! > > > > IMHO we should treat CLOBBER stmts in various places like debug stmts, > > they shouldn't affect the decisions of the optimization phases, but > > if the pass does some transformati

Re: [PATCH] Ignore CLOBBER stmts in ipa-split (PR tree-optimization/52019)

2012-02-23 Thread Richard Guenther
On Thu, 23 Feb 2012, Jakub Jelinek wrote: > Hi! > > IMHO we should treat CLOBBER stmts in various places like debug stmts, > they shouldn't affect the decisions of the optimization phases, but > if the pass does some transformation that somehow invalidates them or > moves them (not in this pass),

[PATCH] Ignore CLOBBER stmts in ipa-split (PR tree-optimization/52019)

2012-02-23 Thread Jakub Jelinek
Hi! IMHO we should treat CLOBBER stmts in various places like debug stmts, they shouldn't affect the decisions of the optimization phases, but if the pass does some transformation that somehow invalidates them or moves them (not in this pass), it needs to be adjusted. Otherwise we end up with the