[15] RFR (L): 8241436: C2: Factor out C2-specific code from MacroAssembler

[Vladimir Ivanov]

Hi,

I'd like somebody from aarch64 port maintainers to take a look at the 
patch as well. Thanks in advance!

Best regards,
Vladimir Ivanov

On 23.03.2020 16:49, Vladimir Ivanov wrote:
> http://cr.openjdk.java.net/~vlivanov/8241436/webrev.00/
> https://bugs.openjdk.java.net/browse/JDK-8241436
> 
> (The patch is built on top of 8240248 [1].)
> 
> MacroAssembler has C2-only declarations and the number is growing over 
> time.
> 
> C1 and template interpreter already subclass MacroAssembler for their 
> own needs (C1_MacroAssembler and InterpreterMacroAssembler respectively).
> 
> I propose to introduce C2_MacroAssembler, move C2-specific code there, 
> and use it exclusively across C2 code base.
> 
> I took the liberty and refactored aarch64, arm32, ppc64, s390x code 
> along the way. I did a cross-build, but I ask maintaners to verify that 
> it doesn't break anything.
> 
> Testing: tier1-4, build (product+debug): 
> linux-aarch64,linux-arm32,linux-ppc64le,linux-s390x,linux-x64,solaris-sparcv9 
> 
> 
> Thanks!
> 
> Best regards,
> Vladimir Ivanov
> 
> [1] 8240248: Extend superword reduction optimizations for x86
>      http://cr.openjdk.java.net/~sviswanathan/8240248/webrev.02/