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Re: [PATCH] Ignore CLOBBER stmts in ipa-split (PR tree-optimization/52019)
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 transformation that somehow invalidates them or
> > moves them (not in this pass), it needs to be adjusted. Otherwise we end
> > up with the CLOBBERs inhibiting optimizations.
> > This seems to work for ipa-split, the actual transformations DTRT
> > apparently. Bootstrapped/regtested on x86_64-linux and i686-linux,
> > ok for trunk?
This patch causes http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52376