Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/memnode.hpp
src/share/vm/opto/memnode.hpp
- changeset 3047
- f1c12354c3f7
- parent 2708
- 1d1603768966
- child 3052
- 1af104d6cf99
equal
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| 3046:a19c671188cb | 3047:f1c12354c3f7 |
|---|---|
| 877 Node* precedent = NULL); | 877 Node* precedent = NULL); |
| 878 }; | 878 }; |
| 879 | 879 |
| 880 // "Acquire" - no following ref can move before (but earlier refs can | 880 // "Acquire" - no following ref can move before (but earlier refs can |
| 881 // follow, like an early Load stalled in cache). Requires multi-cpu | 881 // follow, like an early Load stalled in cache). Requires multi-cpu |
| 882 // visibility. Inserted after a volatile load or FastLock. | 882 // visibility. Inserted after a volatile load. |
| 883 class MemBarAcquireNode: public MemBarNode { | 883 class MemBarAcquireNode: public MemBarNode { |
| 884 public: | 884 public: |
| 885 MemBarAcquireNode(Compile* C, int alias_idx, Node* precedent) | 885 MemBarAcquireNode(Compile* C, int alias_idx, Node* precedent) |
| 886 : MemBarNode(C, alias_idx, precedent) {} | 886 : MemBarNode(C, alias_idx, precedent) {} |
| 887 virtual int Opcode() const; | 887 virtual int Opcode() const; |
| 888 }; | 888 }; |
| 889 | 889 |
| 890 // "Release" - no earlier ref can move after (but later refs can move | 890 // "Release" - no earlier ref can move after (but later refs can move |
| 891 // up, like a speculative pipelined cache-hitting Load). Requires | 891 // up, like a speculative pipelined cache-hitting Load). Requires |
| 892 // multi-cpu visibility. Inserted before a volatile store or FastUnLock. | 892 // multi-cpu visibility. Inserted before a volatile store. |
| 893 class MemBarReleaseNode: public MemBarNode { | 893 class MemBarReleaseNode: public MemBarNode { |
| 894 public: | 894 public: |
| 895 MemBarReleaseNode(Compile* C, int alias_idx, Node* precedent) | 895 MemBarReleaseNode(Compile* C, int alias_idx, Node* precedent) |
| 896 : MemBarNode(C, alias_idx, precedent) {} | |
| 897 virtual int Opcode() const; | |
| 898 }; | |
| 899 | |
| 900 // "Acquire" - no following ref can move before (but earlier refs can | |
| 901 // follow, like an early Load stalled in cache). Requires multi-cpu | |
| 902 // visibility. Inserted after a FastLock. | |
| 903 class MemBarAcquireLockNode: public MemBarNode { | |
| 904 public: | |
| 905 MemBarAcquireLockNode(Compile* C, int alias_idx, Node* precedent) | |
| 906 : MemBarNode(C, alias_idx, precedent) {} | |
| 907 virtual int Opcode() const; | |
| 908 }; | |
| 909 | |
| 910 // "Release" - no earlier ref can move after (but later refs can move | |
| 911 // up, like a speculative pipelined cache-hitting Load). Requires | |
| 912 // multi-cpu visibility. Inserted before a FastUnLock. | |
| 913 class MemBarReleaseLockNode: public MemBarNode { | |
| 914 public: | |
| 915 MemBarReleaseLockNode(Compile* C, int alias_idx, Node* precedent) | |
| 896 : MemBarNode(C, alias_idx, precedent) {} | 916 : MemBarNode(C, alias_idx, precedent) {} |
| 897 virtual int Opcode() const; | 917 virtual int Opcode() const; |
| 898 }; | 918 }; |
| 899 | 919 |
| 900 // Ordering between a volatile store and a following volatile load. | 920 // Ordering between a volatile store and a following volatile load. |
