OpenJDK / jdk / jdk12
changeset 23841:f861d5d148bf
8029858: Enhance array copies
Summary: Just read the source element once
Reviewed-by: coleenp, ahgross
| author | dsimms |
|---|---|
| date | Fri, 10 Jan 2014 15:58:40 +0100 |
| parents | a1963807bff5 |
| children | 9c5200481921 |
| files | hotspot/src/share/vm/oops/objArrayKlass.cpp |
| diffstat | 1 files changed, 1 insertions(+), 1 deletions(-) [+] |
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--- a/hotspot/src/share/vm/oops/objArrayKlass.cpp Thu Feb 20 13:11:23 2014 -0500 +++ b/hotspot/src/share/vm/oops/objArrayKlass.cpp Fri Jan 10 15:58:40 2014 +0100 @@ -269,7 +269,7 @@ if (element_is_null || (new_val->klass())->is_subtype_of(bound)) { bs->write_ref_field_pre(p, new_val); - *p = *from; + *p = element; } else { // We must do a barrier to cover the partial copy. const size_t pd = pointer_delta(p, dst, (size_t)heapOopSize);