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8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence

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Use new nodes for loadFence/storeFence intrinsics in C2.

Reviewed-by: kvn, dholmes
This commit is contained in:
Goetz Lindenmaier 2013-11-26 18:38:19 -08:00
parent b4ded0bc2e
commit fe89766184
11 changed files with 135 additions and 21 deletions
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14
hotspot/src/share/vm/adlc/formssel.cpp
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@ -648,6 +648,8 @@ bool InstructForm::is_wide_memory_kill(FormDict &globals) const {
if( strcmp(_matrule->_opType,"MemBarReleaseLock") == 0 ) return true;
if( strcmp(_matrule->_opType,"MemBarAcquireLock") == 0 ) return true;
if( strcmp(_matrule->_opType,"MemBarStoreStore") == 0 ) return true;
if( strcmp(_matrule->_opType,"StoreFence") == 0 ) return true;
if( strcmp(_matrule->_opType,"LoadFence") == 0 ) return true;
return false;
}
@ -4054,13 +4056,15 @@ bool MatchRule::is_ideal_fastlock() const {
bool MatchRule::is_ideal_membar() const {
if( !_opType ) return false;
return
!strcmp(_opType,"MemBarAcquire" ) ||
!strcmp(_opType,"MemBarRelease" ) ||
!strcmp(_opType,"MemBarAcquire") ||
!strcmp(_opType,"MemBarRelease") ||
!strcmp(_opType,"MemBarAcquireLock") ||
!strcmp(_opType,"MemBarReleaseLock") ||
!strcmp(_opType,"MemBarVolatile" ) ||
!strcmp(_opType,"MemBarCPUOrder" ) ||
!strcmp(_opType,"MemBarStoreStore" );
!strcmp(_opType,"LoadFence" ) ||
!strcmp(_opType,"StoreFence") ||
!strcmp(_opType,"MemBarVolatile") ||
!strcmp(_opType,"MemBarCPUOrder") ||
!strcmp(_opType,"MemBarStoreStore");
}
bool MatchRule::is_ideal_loadPC() const {