RFR (S): JDK-8077873: G1: Remove G1SATBPrintStubs

[Thomas Schatzl]

Hi,

On Wed, 2015-04-15 at 19:02 +0200, Bengt Rutisson wrote:
> Hi everyone,
> 
> Sending this to hotspot-dev since it is a GC change but it touches 
> compiler code in macroAssembler_sparc.cpp.
> 
> https://bugs.openjdk.java.net/browse/JDK-8077873
> http://cr.openjdk.java.net/~brutisso/8077873/webrev.00/
> 
> The develop flag G1SATBPrintStubs prints out the generated assembly for 
> the SATB stubs. This is has been around since G1 was integrated in the 
> the hotspot repo. But it was only ever implemented for Sparc and it 
> looks much like debugging code that has just been left in the code base.
> 
> I have not heard of anyone using this flag lately so rather than 
> generalizing it to all platforms I propose that we remove it. If we need 
> to debug the SATB write barrier generation we can easily add back 
> similar logging.
> 

  looks good.

Thomas