> From: Richard Biener <richard.guent...@gmail.com> > Subject: Re: [PATCH][GCC]: Fix for PR94880: Failure to recognize andn > pattern
Snip... > The patch is OK. I do not have write access yet. Can I ask someone to push my patch to master please ? Thanks in advance, Przemyslaw > Thanks, > Richard. > > > > On Fri, 19 Jun 2020, Przemyslaw Wirkus wrote: > > > > > > > Hi all, > > > > > > > > Pattern "(x | y) - y" can be optimized to simple "(x & ~y)" andn > > > > pattern. > > > > > > > > Bootstrapped and tested on aarch64-none-linux-gnu. > > > > > > > > OK for master ? > > > > > > > > Cheers, > > > > Przemyslaw > > > > > > > > gcc/ChangeLog: > > > > > > > > PR tree-optimization/94880 > > > > * match.pd (A | B) - B -> (A & ~B): New simplification. > > > > > > > > gcc/testsuite/ChangeLog: > > > > > > > > PR tree-optimization/94880 > > > > * gcc.dg/tree-ssa/pr94880.c: New Test. > > > > > > > > > > > > > > -- > > > Marc Glisse > > > > -- > > Przemyslaw
