On Sat, 2023-09-09 at 15:04 +0800, chenglulu wrote:
> Hi,RuoYao:
>
> I think the test example memcpy-vec-3.c submitted in r14-3818 is
> implemented incorrectly.
>
> The 16-byte length in this test example will cause can_move_by_pieces to
> return true when with '-mstrict-align', so no vector load instructions
> will be generated.
Yes, in this case we cannot use vst because we don't know if b is
aligned. Thus a { scan-assembler-not "vst" } guarantees that.
Or am I understanding something wrongly here?
--
Xi Ruoyao <[email protected]>
School of Aerospace Science and Technology, Xidian University
