On Mon, Dec 13, 2021 at 3:31 PM Kyrylo Tkachov via Gcc-patches < gcc-patches@gcc.gnu.org> wrote:
> Hi all, > > This second patch in the series adds an inline movmem expansion for > TARGET_MOPS > that emits the recommended sequence. > > A new param aarch64-mops-memmove-size-threshold is added to control the > memmove size threshold > for this expansion. Its default value is zero to be consistent with the > current behaviour where > we always emit a libcall, as we don't currently have a movmem inline > expansion > (we should add a compatible-everywhere inline expansion, but that's for > the future), so we should > always prefer to emit the MOPS sequence when available in lieu of a > libcall. > > Bootstrapped and tested on aarch64-none-linux-gnu. > Pushing to trunk. > Thanks, > Kyrill > > gcc/ChangeLog: > > * config/aarch64/aarch64.md (aarch64_movmemdi): Define. > (movmemdi): Define. > (unspec): Add UNSPEC_MOVMEM. > * config/aarch64/aarch64.opt (aarch64-mops-memmove-size-threshold): > New param. > > gcc/testsuite/ChangeLog: > > * gcc.target/aarch64/mops_2.c: New test. > Hi Kyrill, The new test fails with -mabi=ilp32 too :-) Thanks, Christophe
