review for 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb

[Vladimir Kozlov]

Is it possible to add an assert in nmethod::preserve_callee_argument_oops() to 
verify that invokedynamic has a receiver?

Otherwise looks good.

thanks,
Vladimir

Tom Rodriguez wrote:
> http://cr.openjdk.java.net/~never/7057587
> 40 lines changed: 6 ins; 0 del; 34 mod; 4861 unchg
> 
> 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
> Summary: don't skip receiver when GC'ing compiled invokedynamic callsites
> Reviewed-by:
> 
> When GC'ing at a call site during resolution the arguments to the call
> have to be handled specially.  In most cases the implicit receiver to
> method handle invoke is ignored but in this case it must be treated as
> real so that it is properly GC'ed.  Tested with failing test from
> report.  Also ran jck, regression tests and vm.mlvm tests.
> 
> I also included a fix to the inline level printing.  For method handle
> invokes we don't want to count them against MaxInlineLevel and
> previously this was done by adding a bias to the inline_depth.  This
> screwed up the indenting making the inlining output unreadable.
> Instead we should keep the depth count consistent and adjust the max
> inline level for the subtree.  This is done by keeping that value in
> the InlineTree.  inline_depth was renamed to inline_level to be
> consistent with MaxInlineLevel.
>