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8031320: Use Intel RTM instructions for locks

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Use RTM for inflated locks and stack locks.

Reviewed-by: iveresov, twisti, roland, dcubed
This commit is contained in:
Vladimir Kozlov 2014-03-20 17:49:27 -07:00
parent 315e4838e9
commit 97a51c5c2a
46 changed files with 1251 additions and 87 deletions
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24
hotspot/src/share/vm/oops/methodData.hpp
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@ -2052,7 +2052,7 @@ public:
// Whole-method sticky bits and flags
enum {
_trap_hist_limit = 18, // decoupled from Deoptimization::Reason_LIMIT
_trap_hist_limit = 19, // decoupled from Deoptimization::Reason_LIMIT
_trap_hist_mask = max_jubyte,
_extra_data_count = 4 // extra DataLayout headers, for trap history
}; // Public flag values
@ -2083,6 +2083,12 @@ private:
// Counter values at the time profiling started.
int _invocation_counter_start;
int _backedge_counter_start;
#if INCLUDE_RTM_OPT
// State of RTM code generation during compilation of the method
int _rtm_state;
#endif
// Number of loops and blocks is computed when compiling the first
// time with C1. It is used to determine if method is trivial.
short _num_loops;
@ -2246,6 +2252,22 @@ public:
InvocationCounter* invocation_counter() { return &_invocation_counter; }
InvocationCounter* backedge_counter() { return &_backedge_counter; }
#if INCLUDE_RTM_OPT
int rtm_state() const {
return _rtm_state;
}
void set_rtm_state(RTMState rstate) {
_rtm_state = (int)rstate;
}
void atomic_set_rtm_state(RTMState rstate) {
Atomic::store((int)rstate, &_rtm_state);
}
static int rtm_state_offset_in_bytes() {
return offset_of(MethodData, _rtm_state);
}
#endif
void set_would_profile(bool p) { _would_profile = p; }
bool would_profile() const { return _would_profile; }