Mercurial > hg > truffle
diff src/share/vm/opto/idealKit.cpp @ 6615:09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
Summary: In C2 add software membar after load from Reference.referent field to prevent commoning of loads across safepoint since GC can change its value. In C1 always generate Reference.get() intrinsic.
Reviewed-by: roland, twisti, dholmes, johnc
author | kvn |
---|---|
date | Mon, 20 Aug 2012 09:58:58 -0700 |
parents | 6c97c830fb6f |
children | e626685e9f6c |
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--- a/src/share/vm/opto/idealKit.cpp Mon Aug 20 09:07:21 2012 -0700 +++ b/src/share/vm/opto/idealKit.cpp Mon Aug 20 09:58:58 2012 -0700 @@ -295,7 +295,11 @@ if (_delay_all_transforms) { return delay_transform(n); } else { - return gvn().transform(n); + n = gvn().transform(n); + if (!gvn().is_IterGVN()) { + C->record_for_igvn(n); + } + return n; } }