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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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30
hotspot/src/share/vm/opto/memnode.cpp
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@ -1002,9 +1002,13 @@ Node* MemNode::can_see_stored_value(Node* st, PhaseTransform* phase) const {
// a synchronized region.
while (current->is_Proj()) {
int opc = current->in(0)->Opcode();
if ((final && (opc == Op_MemBarAcquire || opc == Op_MemBarAcquireLock)) ||
opc == Op_MemBarRelease || opc == Op_MemBarCPUOrder ||
opc == Op_MemBarReleaseLock) {
if ((final && (opc == Op_MemBarAcquire ||
opc == Op_MemBarAcquireLock ||
opc == Op_LoadFence)) ||
opc == Op_MemBarRelease ||
opc == Op_StoreFence ||
opc == Op_MemBarReleaseLock ||
opc == Op_MemBarCPUOrder) {
Node* mem = current->in(0)->in(TypeFunc::Memory);
if (mem->is_MergeMem()) {
MergeMemNode* merge = mem->as_MergeMem();
@ -2973,15 +2977,17 @@ uint MemBarNode::cmp( const Node &n ) const {
//------------------------------make-------------------------------------------
MemBarNode* MemBarNode::make(Compile* C, int opcode, int atp, Node* pn) {
switch (opcode) {
case Op_MemBarAcquire: return new(C) MemBarAcquireNode(C, atp, pn);
case Op_MemBarRelease: return new(C) MemBarReleaseNode(C, atp, pn);
case Op_MemBarAcquireLock: return new(C) MemBarAcquireLockNode(C, atp, pn);
case Op_MemBarReleaseLock: return new(C) MemBarReleaseLockNode(C, atp, pn);
case Op_MemBarVolatile: return new(C) MemBarVolatileNode(C, atp, pn);
case Op_MemBarCPUOrder: return new(C) MemBarCPUOrderNode(C, atp, pn);
case Op_Initialize: return new(C) InitializeNode(C, atp, pn);
case Op_MemBarStoreStore: return new(C) MemBarStoreStoreNode(C, atp, pn);
default: ShouldNotReachHere(); return NULL;
case Op_MemBarAcquire: return new(C) MemBarAcquireNode(C, atp, pn);
case Op_LoadFence: return new(C) LoadFenceNode(C, atp, pn);
case Op_MemBarRelease: return new(C) MemBarReleaseNode(C, atp, pn);
case Op_StoreFence: return new(C) StoreFenceNode(C, atp, pn);
case Op_MemBarAcquireLock: return new(C) MemBarAcquireLockNode(C, atp, pn);
case Op_MemBarReleaseLock: return new(C) MemBarReleaseLockNode(C, atp, pn);
case Op_MemBarVolatile: return new(C) MemBarVolatileNode(C, atp, pn);
case Op_MemBarCPUOrder: return new(C) MemBarCPUOrderNode(C, atp, pn);
case Op_Initialize: return new(C) InitializeNode(C, atp, pn);
case Op_MemBarStoreStore: return new(C) MemBarStoreStoreNode(C, atp, pn);
default: ShouldNotReachHere(); return NULL;
}
}