Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/memnode.hpp
src/share/vm/opto/memnode.hpp
- changeset 6489
- 50fdb38839eb
- parent 6485
- da862781b584
- child 6503
- a9becfeecd1b
equal
deleted
inserted
replaced
| 6488:4cdf4f71177d | 6489:50fdb38839eb |
|---|---|
| 992 MemBarAcquireNode(Compile* C, int alias_idx, Node* precedent) | 992 MemBarAcquireNode(Compile* C, int alias_idx, Node* precedent) |
| 993 : MemBarNode(C, alias_idx, precedent) {} | 993 : MemBarNode(C, alias_idx, precedent) {} |
| 994 virtual int Opcode() const; | 994 virtual int Opcode() const; |
| 995 }; | 995 }; |
| 996 | 996 |
| 997 // "Acquire" - no following ref can move before (but earlier refs can | |
| 998 // follow, like an early Load stalled in cache). Requires multi-cpu | |
| 999 // visibility. Inserted independ of any load, as required | |
| 1000 // for intrinsic sun.misc.Unsafe.loadFence(). | |
| 1001 class LoadFenceNode: public MemBarNode { | |
| 1002 public: | |
| 1003 LoadFenceNode(Compile* C, int alias_idx, Node* precedent) | |
| 1004 : MemBarNode(C, alias_idx, precedent) {} | |
| 1005 virtual int Opcode() const; | |
| 1006 }; | |
| 1007 | |
| 997 // "Release" - no earlier ref can move after (but later refs can move | 1008 // "Release" - no earlier ref can move after (but later refs can move |
| 998 // up, like a speculative pipelined cache-hitting Load). Requires | 1009 // up, like a speculative pipelined cache-hitting Load). Requires |
| 999 // multi-cpu visibility. Inserted before a volatile store. | 1010 // multi-cpu visibility. Inserted before a volatile store. |
| 1000 class MemBarReleaseNode: public MemBarNode { | 1011 class MemBarReleaseNode: public MemBarNode { |
| 1001 public: | 1012 public: |
| 1002 MemBarReleaseNode(Compile* C, int alias_idx, Node* precedent) | 1013 MemBarReleaseNode(Compile* C, int alias_idx, Node* precedent) |
| 1014 : MemBarNode(C, alias_idx, precedent) {} | |
| 1015 virtual int Opcode() const; | |
| 1016 }; | |
| 1017 | |
| 1018 // "Release" - no earlier ref can move after (but later refs can move | |
| 1019 // up, like a speculative pipelined cache-hitting Load). Requires | |
| 1020 // multi-cpu visibility. Inserted independent of any store, as required | |
| 1021 // for intrinsic sun.misc.Unsafe.storeFence(). | |
| 1022 class StoreFenceNode: public MemBarNode { | |
| 1023 public: | |
| 1024 StoreFenceNode(Compile* C, int alias_idx, Node* precedent) | |
| 1003 : MemBarNode(C, alias_idx, precedent) {} | 1025 : MemBarNode(C, alias_idx, precedent) {} |
| 1004 virtual int Opcode() const; | 1026 virtual int Opcode() const; |
| 1005 }; | 1027 }; |
| 1006 | 1028 |
| 1007 // "Acquire" - no following ref can move before (but earlier refs can | 1029 // "Acquire" - no following ref can move before (but earlier refs can |
