RFR: 8299323: Allow extended registers for cmpw
Erik Österlund
eosterlund at openjdk.org
Mon Jan 16 10:53:11 UTC 2023
On Fri, 23 Dec 2022 12:41:03 GMT, Erik Österlund <eosterlund at openjdk.org> wrote:
> The current instruction encoder for cmpw(Address, int16_t) on x64 does not allow rex extended registers. Generational ZGC needs to use this for arbitrary registers. Let's add support for it instead of asserting the input Address uses a subset of registers.
Any takers?
-------------
PR: https://git.openjdk.org/jdk/pull/11776
More information about the hotspot-compiler-dev
mailing list