Author: Remi Meier
Branch: stmgc-c7
Changeset: r69961:71769371cb0b
Date: 2014-03-14 17:41 +0100
http://bitbucket.org/pypy/pypy/changeset/71769371cb0b/
Log: remove 'weakref_deref' from stm_read-exceptions
diff --git a/rpython/translator/stm/readbarrier.py
b/rpython/translator/stm/readbarrier.py
--- a/rpython/translator/stm/readbarrier.py
+++ b/rpython/translator/stm/readbarrier.py
@@ -61,10 +61,13 @@
op.args[0].concretetype.TO._hints.get('typeptr')):
# typeptr is always immutable
pass
- elif ((op.opname in ('getarraysize', 'getinteriorarraysize',
'weakref_deref') and
+ elif ((op.opname in ('getarraysize', 'getinteriorarraysize') and
is_gc_ptr(op.args[0].concretetype)) or
(is_getter and is_immutable(op))):
# immutable getters
+ # 'weakref_deref': kind of immutable, but the GC has to see
+ # which transactions read from a dying weakref, so we
+ # need the barrier nonetheless...
pass
elif is_getter:
if not stm_ignored:
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