Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/memnode.cpp
src/share/vm/opto/memnode.cpp
- changeset 6489
- 50fdb38839eb
- parent 6479
- 2113136690bc
- child 6498
- 5da8bb64b370
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| 6488:4cdf4f71177d | 6489:50fdb38839eb |
|---|---|
| 1000 // through any kind of MemBar but normal loads shouldn't skip | 1000 // through any kind of MemBar but normal loads shouldn't skip |
| 1001 // through MemBarAcquire since the could allow them to move out of | 1001 // through MemBarAcquire since the could allow them to move out of |
| 1002 // a synchronized region. | 1002 // a synchronized region. |
| 1003 while (current->is_Proj()) { | 1003 while (current->is_Proj()) { |
| 1004 int opc = current->in(0)->Opcode(); | 1004 int opc = current->in(0)->Opcode(); |
| 1005 if ((final && (opc == Op_MemBarAcquire || opc == Op_MemBarAcquireLock)) || | 1005 if ((final && (opc == Op_MemBarAcquire || |
| 1006 opc == Op_MemBarRelease || opc == Op_MemBarCPUOrder || | 1006 opc == Op_MemBarAcquireLock || |
| 1007 opc == Op_MemBarReleaseLock) { | 1007 opc == Op_LoadFence)) || |
| 1008 opc == Op_MemBarRelease || | |
| 1009 opc == Op_StoreFence || | |
| 1010 opc == Op_MemBarReleaseLock || | |
| 1011 opc == Op_MemBarCPUOrder) { | |
| 1008 Node* mem = current->in(0)->in(TypeFunc::Memory); | 1012 Node* mem = current->in(0)->in(TypeFunc::Memory); |
| 1009 if (mem->is_MergeMem()) { | 1013 if (mem->is_MergeMem()) { |
| 1010 MergeMemNode* merge = mem->as_MergeMem(); | 1014 MergeMemNode* merge = mem->as_MergeMem(); |
| 1011 Node* new_st = merge->memory_at(alias_idx); | 1015 Node* new_st = merge->memory_at(alias_idx); |
| 1012 if (new_st == merge->base_memory()) { | 1016 if (new_st == merge->base_memory()) { |
| 2971 } | 2975 } |
| 2972 | 2976 |
| 2973 //------------------------------make------------------------------------------- | 2977 //------------------------------make------------------------------------------- |
| 2974 MemBarNode* MemBarNode::make(Compile* C, int opcode, int atp, Node* pn) { | 2978 MemBarNode* MemBarNode::make(Compile* C, int opcode, int atp, Node* pn) { |
| 2975 switch (opcode) { | 2979 switch (opcode) { |
| 2976 case Op_MemBarAcquire: return new(C) MemBarAcquireNode(C, atp, pn); | 2980 case Op_MemBarAcquire: return new(C) MemBarAcquireNode(C, atp, pn); |
| 2977 case Op_MemBarRelease: return new(C) MemBarReleaseNode(C, atp, pn); | 2981 case Op_LoadFence: return new(C) LoadFenceNode(C, atp, pn); |
| 2978 case Op_MemBarAcquireLock: return new(C) MemBarAcquireLockNode(C, atp, pn); | 2982 case Op_MemBarRelease: return new(C) MemBarReleaseNode(C, atp, pn); |
| 2979 case Op_MemBarReleaseLock: return new(C) MemBarReleaseLockNode(C, atp, pn); | 2983 case Op_StoreFence: return new(C) StoreFenceNode(C, atp, pn); |
| 2980 case Op_MemBarVolatile: return new(C) MemBarVolatileNode(C, atp, pn); | 2984 case Op_MemBarAcquireLock: return new(C) MemBarAcquireLockNode(C, atp, pn); |
| 2981 case Op_MemBarCPUOrder: return new(C) MemBarCPUOrderNode(C, atp, pn); | 2985 case Op_MemBarReleaseLock: return new(C) MemBarReleaseLockNode(C, atp, pn); |
| 2982 case Op_Initialize: return new(C) InitializeNode(C, atp, pn); | 2986 case Op_MemBarVolatile: return new(C) MemBarVolatileNode(C, atp, pn); |
| 2983 case Op_MemBarStoreStore: return new(C) MemBarStoreStoreNode(C, atp, pn); | 2987 case Op_MemBarCPUOrder: return new(C) MemBarCPUOrderNode(C, atp, pn); |
| 2984 default: ShouldNotReachHere(); return NULL; | 2988 case Op_Initialize: return new(C) InitializeNode(C, atp, pn); |
| 2989 case Op_MemBarStoreStore: return new(C) MemBarStoreStoreNode(C, atp, pn); | |
| 2990 default: ShouldNotReachHere(); return NULL; | |
| 2985 } | 2991 } |
| 2986 } | 2992 } |
| 2987 | 2993 |
| 2988 //------------------------------Ideal------------------------------------------ | 2994 //------------------------------Ideal------------------------------------------ |
| 2989 // Return a node which is more "ideal" than the current node. Strip out | 2995 // Return a node which is more "ideal" than the current node. Strip out |
