RFR (11): Revert to emit locked cmpxchg only on MP

[Aleksey Shipilev]

On 5/29/19 2:01 PM, Roman Kennke wrote:
> Last backports introduced a minor diff vs. upstream that we can and
> should revert:
> 
> http://cr.openjdk.java.net/~rkennke/jdk11-revert-lock-cas/webrev.00/

Looks good.

I think there is a white-space difference here:
 1942    } else {

See:

https://builds.shipilev.net/patch-openjdk-shenandoah-jdk11/src/hotspot/cpu/x86/c1_LIRAssembler_x86.cpp.sdiff.html

Can you "hg diff -r 435ba0b576c9 src/hotspot/cpu/x86/c1_LIRAssembler_x86.cpp" to see it?

-- 
Thanks,
-Aleksey