Mercurial > hg > graal-jvmci-8
diff src/share/vm/utilities/globalDefinitions.hpp @ 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 | 610be0309a79 |
| children | 62c54fcc0a35 |
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--- a/src/share/vm/utilities/globalDefinitions.hpp Sat Mar 22 00:26:48 2014 +0400 +++ b/src/share/vm/utilities/globalDefinitions.hpp Thu Mar 20 17:49:27 2014 -0700 @@ -370,6 +370,21 @@ // Machine dependent stuff +#if defined(X86) && defined(COMPILER2) && !defined(JAVASE_EMBEDDED) +// Include Restricted Transactional Memory lock eliding optimization +#define INCLUDE_RTM_OPT 1 +#define RTM_OPT_ONLY(code) code +#else +#define INCLUDE_RTM_OPT 0 +#define RTM_OPT_ONLY(code) +#endif +// States of Restricted Transactional Memory usage. +enum RTMState { + NoRTM = 0x2, // Don't use RTM + UseRTM = 0x1, // Use RTM + ProfileRTM = 0x0 // Use RTM with abort ratio calculation +}; + #ifdef TARGET_ARCH_x86 # include "globalDefinitions_x86.hpp" #endif