Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/library_call.cpp
src/share/vm/opto/library_call.cpp
- changeset 7859
- c1c199dde5c9
- parent 7790
- d9593687713d
- child 7890
- bf41eee321e5
equal
deleted
inserted
replaced
| 7858:55d07ec5bde4 | 7859:c1c199dde5c9 |
|---|---|
| 2667 // around 5701, class sun/reflect/UnsafeBooleanFieldAccessorImpl. | 2667 // around 5701, class sun/reflect/UnsafeBooleanFieldAccessorImpl. |
| 2668 if (need_mem_bar) insert_mem_bar(Op_MemBarCPUOrder); | 2668 if (need_mem_bar) insert_mem_bar(Op_MemBarCPUOrder); |
| 2669 | 2669 |
| 2670 if (!is_store) { | 2670 if (!is_store) { |
| 2671 MemNode::MemOrd mo = is_volatile ? MemNode::acquire : MemNode::unordered; | 2671 MemNode::MemOrd mo = is_volatile ? MemNode::acquire : MemNode::unordered; |
| 2672 Node* p = make_load(control(), adr, value_type, type, adr_type, mo, is_volatile); | 2672 // To be valid, unsafe loads may depend on other conditions than |
| 2673 // the one that guards them: pin the Load node | |
| 2674 Node* p = make_load(control(), adr, value_type, type, adr_type, mo, LoadNode::Pinned, is_volatile); | |
| 2673 // load value | 2675 // load value |
| 2674 switch (type) { | 2676 switch (type) { |
| 2675 case T_BOOLEAN: | 2677 case T_BOOLEAN: |
| 2676 case T_CHAR: | 2678 case T_CHAR: |
| 2677 case T_BYTE: | 2679 case T_BYTE: |
| 6036 if (support_IRIW_for_not_multiple_copy_atomic_cpu && is_vol) { | 6038 if (support_IRIW_for_not_multiple_copy_atomic_cpu && is_vol) { |
| 6037 insert_mem_bar(Op_MemBarVolatile); // StoreLoad barrier | 6039 insert_mem_bar(Op_MemBarVolatile); // StoreLoad barrier |
| 6038 } | 6040 } |
| 6039 // Build the load. | 6041 // Build the load. |
| 6040 MemNode::MemOrd mo = is_vol ? MemNode::acquire : MemNode::unordered; | 6042 MemNode::MemOrd mo = is_vol ? MemNode::acquire : MemNode::unordered; |
| 6041 Node* loadedField = make_load(NULL, adr, type, bt, adr_type, mo, is_vol); | 6043 Node* loadedField = make_load(NULL, adr, type, bt, adr_type, mo, LoadNode::DependsOnlyOnTest, is_vol); |
| 6042 // If reference is volatile, prevent following memory ops from | 6044 // If reference is volatile, prevent following memory ops from |
| 6043 // floating up past the volatile read. Also prevents commoning | 6045 // floating up past the volatile read. Also prevents commoning |
| 6044 // another volatile read. | 6046 // another volatile read. |
| 6045 if (is_vol) { | 6047 if (is_vol) { |
| 6046 // Memory barrier includes bogus read of value to force load BEFORE membar | 6048 // Memory barrier includes bogus read of value to force load BEFORE membar |
