Re: [PATCH 1/2] Generate overlapping operations between two areas of memory

2021-04-23 Thread Richard Biener via Gcc-patches
On Fri, Apr 23, 2021 at 1:35 AM H.J. Lu via Gcc-patches wrote: > > For op_by_pieces operations between two areas of memory on non-strict > alignment target, add -foverlap-op-by-pieces=[off|on|max-memset] to > generate overlapping operations to minimize number of operations if it > is not a stack p

[PATCH 1/2] Generate overlapping operations between two areas of memory

2021-04-22 Thread H.J. Lu via Gcc-patches
For op_by_pieces operations between two areas of memory on non-strict alignment target, add -foverlap-op-by-pieces=[off|on|max-memset] to generate overlapping operations to minimize number of operations if it is not a stack push which must not overlap. When operating on LENGTH bytes of memory, -fo