On 05/11/2017 12:46 PM, Uros Bizjak wrote:
On Thu, May 11, 2017 at 8:28 PM, Jeff Law <l...@redhat.com> wrote:
Attached patch changes compare-elim.c order to what i386.md expects.
Thoughts?
Haven't looked at the patch itself. But I do have the necessary bits to
convert the mn103 port. It was slightly more than just fixing the md file,
but nothing significant or time consuming. The net result is 100% identical
code for newlib before your patch vs after your patch w/mn103 converted.
Hell, it was easy enough, I'll take a cut at the rx port.
Attached to this message, please find a version of the patch that
should ease transition of other targets by declaring and handling a
temporary macro. This way, aarch64 can also test what happens when
postreload cmp elimination goes live for real.
2017-05-11 Uros Bizjak <ubiz...@gmail.com>
* compare-elim.c (try_eliminate_compare)
[TARGET_HAS_ALTERNATIVE_POSTRELOAD_EMBEDDED_COMPARE_PATTERNS]:
Canonicalize operation with embedded compare to
[(set (reg:CCM) (compare:CCM (operation) (immediate)))
(set (reg) (operation)].
Bah. No need for handling both -- it's easy enough to just test the
target and see what's caught or missing.
So far the mn103, rx and visium ports, generate the same code
before/after conversion with fairly simple patches.
So I really think we should test aarch64, then do final review.
jeff
