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8161445: [BACKOUT] MemberNameTable doesn't purge stale entries

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Original change caused performance regression in microbenchmarks after GC

Reviewed-by: dholmes, ecaspole
This commit is contained in:
Coleen Phillimore 2016-08-01 16:28:23 -04:00
parent f4338a53f4
commit 8f37b6e451
7 changed files with 18 additions and 54 deletions
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9
hotspot/src/share/vm/classfile/javaClasses.cpp
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@ -3243,15 +3243,6 @@ void java_lang_invoke_MemberName::set_vmindex(oop mname, intptr_t index) {
mname->address_field_put(_vmindex_offset, (address) index);
}
bool java_lang_invoke_MemberName::equals(oop mn1, oop mn2) {
if (mn1 == mn2) {
return true;
}
return (vmtarget(mn1) == vmtarget(mn2) && flags(mn1) == flags(mn2) &&
vmindex(mn1) == vmindex(mn2) &&
clazz(mn1) == clazz(mn2));
}
oop java_lang_invoke_LambdaForm::vmentry(oop lform) {
assert(is_instance(lform), "wrong type");
return lform->obj_field(_vmentry_offset);