Re: [PATCH v3 2/2] Generate offset adjusted operation for op_by_pieces operations

2021-04-29 Thread Richard Biener via Gcc-patches
On Tue, Apr 27, 2021 at 3:14 AM H.J. Lu wrote: > > Add an overlap_op_by_pieces_p target hook for op_by_pieces operations > between two areas of memory to generate one offset adjusted operation > in the smallest integer mode for the remaining bytes on the last piece > operation of a memory region t

[PATCH v3 2/2] Generate offset adjusted operation for op_by_pieces operations

2021-04-26 Thread H.J. Lu via Gcc-patches
Add an overlap_op_by_pieces_p target hook for op_by_pieces operations between two areas of memory to generate one offset adjusted operation in the smallest integer mode for the remaining bytes on the last piece operation of a memory region to avoid doing more than one smaller operations. Pass the