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view visualizer/Graph/nbproject/platform.properties @ 11825:463f51256c86
AMD64HotSpot: emit jump to IC miss handler directly instead of emitting it inside verfied_entry
for empty methods we emitted something like this if a inline cache is needed:
prefix:
00: < IC check >
...
0b: jne <ic_miss_call>
11: nop
...
verified_entry:
20: ret
ic_miss_call:
21: jmp <entry of runtime function>
when a method is deoptimized, HotSpot patches the verified_entry (0x20) with a
jump to a stub that handles call-sites that has been made non-entrant. since this jump
is 5 bytes long, it will overwrite ic_miss_call and blow up every caller that
calls this method via the unverified entry (prefix).
the fix is to emit the jump to the runtime function inside the unverfied entry:
prefix:
00: < IC check >
...
0b: je <verified_entry>
11: jeq <entry of runtime function>
16: nop
...
verified_entry:
20: ret
author | Bernhard Urban <bernhard.urban@jku.at> |
---|---|
date | Mon, 30 Sep 2013 09:32:18 +0200 |
parents | 35cca763f498 |
children |
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# Deprecated since 5.0u1; for compatibility with 5.0: disabled.clusters=\ apisupport1,\ harness,\ ide8,\ java1,\ nb6.0,\ profiler2 disabled.modules=\ org.netbeans.core.execution,\ org.netbeans.core.multiview,\ org.netbeans.core.output2,\ org.netbeans.modules.applemenu,\ org.netbeans.modules.autoupdate.services,\ org.netbeans.modules.autoupdate.ui,\ org.netbeans.modules.core.kit,\ org.netbeans.modules.favorites,\ org.netbeans.modules.javahelp,\ org.netbeans.modules.masterfs,\ org.netbeans.modules.options.keymap,\ org.netbeans.modules.sendopts,\ org.netbeans.modules.templates,\ org.openide.compat,\ org.openide.execution,\ org.openide.util.enumerations enabled.clusters=\ platform7 nbjdk.active=JDK_1.6 nbplatform.active=default