git: openjdk/jdk: 8302167: Avoid allocating register in fast_lock()

[Roman Kennke]

Changeset: db1b48ef
Author:    Roman Kennke <rkennke at openjdk.org>
Date:      2023-02-10 18:12:43 +0000
URL:       https://git.openjdk.org/jdk/commit/db1b48ef3bb4f8f0fbb6879200c0655b7fe006eb

8302167: Avoid allocating register in fast_lock()

Reviewed-by: kvn, kdnilsen

! src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp
! src/hotspot/cpu/x86/x86_64.ad