Mercurial > hg > truffle
diff src/share/vm/opto/loopTransform.cpp @ 17780:606acabe7b5c
8031320: Use Intel RTM instructions for locks
Summary: Use RTM for inflated locks and stack locks.
Reviewed-by: iveresov, twisti, roland, dcubed
author | kvn |
---|---|
date | Thu, 20 Mar 2014 17:49:27 -0700 |
parents | 085b304a1cc5 |
children | 62c54fcc0a35 |
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--- a/src/share/vm/opto/loopTransform.cpp Sat Mar 22 00:26:48 2014 +0400 +++ b/src/share/vm/opto/loopTransform.cpp Thu Mar 20 17:49:27 2014 -0700 @@ -617,6 +617,15 @@ case Op_AryEq: { return false; } +#if INCLUDE_RTM_OPT + case Op_FastLock: + case Op_FastUnlock: { + // Don't unroll RTM locking code because it is large. + if (UseRTMLocking) { + return false; + } + } +#endif } // switch } @@ -722,6 +731,15 @@ // String intrinsics are large and have loops. return false; } +#if INCLUDE_RTM_OPT + case Op_FastLock: + case Op_FastUnlock: { + // Don't unroll RTM locking code because it is large. + if (UseRTMLocking) { + return false; + } + } +#endif } // switch }