(It would be nice to convince your mailer that a patch is not just
Application/OCTET-STREAM)
Aren't you missing :cs on bit_ior?
On Wed, 17 Jun 2020, Przemyslaw Wirkus wrote:
Hi,
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
