review for 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
Vladimir Kozlov
vladimir.kozlov at oracle.com
Wed Jun 22 12:23:44 PDT 2011
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.
>
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