[PATCH] Enhance ifcombine to recover non short circuit branches

[Steven Bosscher]

On Fri, Nov 8, 2013 at 10:46 PM, Jeff Law wrote:
> Also note that other patches have gone in recently which include those files
> for exactly the same reason.

I assume you're referring to tree-ssa-reassoc.c? It's the only new one
I could find since I cleaned rtl.h out from almost all tree-* files
last year.


>  I don't think Andrew did anything wrong here.

Yup. The problem came in with an ARM patch: http://gcc.gnu.org/r174578


> Clearly those can/should/will go away when BRANCH_COST turns into a target
> hook.  I'd like to do it myself, but I'm buried right now.

Hook would be better but even as a macro this can be solved, see the
patch I attached up thread.

There should be a ban, enforced somehow, on new #includes of rtl.h and
expr.h in GIMPLE passes...

Ciao!
Steven