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7074017: Introduce MemBarAcquireLock/MemBarReleaseLock nodes for monitor enter/exit code paths

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Replace MemBarAcquire/MemBarRelease nodes on the monitor enter/exit code paths with new MemBarAcquireLock/MemBarReleaseLock nodes

Reviewed-by: kvn, twisti
This commit is contained in:
Roland Westrelin 2011-08-02 18:36:40 +02:00
parent 9cd1a00e3f
commit b543a07b9a
11 changed files with 45 additions and 83 deletions
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4
hotspot/src/share/vm/adlc/formssel.cpp
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@ -624,6 +624,8 @@ bool InstructForm::is_wide_memory_kill(FormDict &globals) const {
if( strcmp(_matrule->_opType,"MemBarRelease") == 0 ) return true;
if( strcmp(_matrule->_opType,"MemBarAcquire") == 0 ) return true;
if( strcmp(_matrule->_opType,"MemBarReleaseLock") == 0 ) return true;
if( strcmp(_matrule->_opType,"MemBarAcquireLock") == 0 ) return true;
return false;
}
@ -3941,6 +3943,8 @@ bool MatchRule::is_ideal_membar() const {
return
!strcmp(_opType,"MemBarAcquire" ) ||
!strcmp(_opType,"MemBarRelease" ) ||
!strcmp(_opType,"MemBarAcquireLock") ||
!strcmp(_opType,"MemBarReleaseLock") ||
!strcmp(_opType,"MemBarVolatile" ) ||
!strcmp(_opType,"MemBarCPUOrder" ) ;
}