combine: Better split point for `(and (not X))` [PR111949]

In a similar way find_split_point handles `a+b*C`, this adds
the split point for `~a & b`.  This allows for better instruction
selection when the target has this instruction (aarch64, arm and x86_64
are examples which have this).

Built and tested for aarch64-linux-gnu.

	PR rtl-optimization/111949

gcc/ChangeLog:

	* combine.cc (find_split_point): Add a split point
	for `(and (not X) Y)` if not in the outer set already.

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/bic-1.c: New test.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

0 files changed, 0 insertions, 0 deletions