Mercurial > hg > openjdk > jdk9 > hotspot
changeset 12699:03f4b62f3562
8176513: Poor code quality for ByteBuffers
Summary: Relaxes the condition under which MemBarCPUOrder nodes are added around unsafe accesses.
Reviewed-by: vlivanov, kvn, jrose
author | roland |
---|---|
date | Wed, 15 Mar 2017 18:18:04 -0700 |
parents | 03ca64e4447c |
children | d2724225519c fa10bec35262 |
files | src/share/vm/opto/library_call.cpp |
diffstat | 1 files changed, 1 insertions(+), 1 deletions(-) [+] |
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--- a/src/share/vm/opto/library_call.cpp Wed Mar 15 13:03:13 2017 +0100 +++ b/src/share/vm/opto/library_call.cpp Wed Mar 15 18:18:04 2017 -0700 @@ -2375,7 +2375,7 @@ bool need_mem_bar; switch (kind) { case Relaxed: - need_mem_bar = mismatched || can_access_non_heap; + need_mem_bar = mismatched && !adr_type->isa_aryptr(); break; case Opaque: // Opaque uses CPUOrder membars for protection against code movement.