Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/matcher.cpp
src/share/vm/opto/matcher.cpp
- changeset 9725
- 34799214056c
- parent 9513
- e044997c2eda
- child 9756
- 2be326848943
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| 9724:bfff0a0ccb0e | 9725:34799214056c |
|---|---|
| 2041 } | 2041 } |
| 2042 if (is_visited(n)) { // Visited already? | 2042 if (is_visited(n)) { // Visited already? |
| 2043 // Node is shared and has no reason to clone. Flag it as shared. | 2043 // Node is shared and has no reason to clone. Flag it as shared. |
| 2044 // This causes it to match into a register for the sharing. | 2044 // This causes it to match into a register for the sharing. |
| 2045 set_shared(n); // Flag as shared and | 2045 set_shared(n); // Flag as shared and |
| 2046 if (n->is_DecodeNarrowPtr()) { | |
| 2047 // Oop field/array element loads must be shared but since | |
| 2048 // they are shared through a DecodeN they may appear to have | |
| 2049 // a single use so force sharing here. | |
| 2050 set_shared(n->in(1)); | |
| 2051 } | |
| 2046 mstack.pop(); // remove node from stack | 2052 mstack.pop(); // remove node from stack |
| 2047 continue; | 2053 continue; |
| 2048 } | 2054 } |
| 2049 nstate = Visit; // Not already visited; so visit now | 2055 nstate = Visit; // Not already visited; so visit now |
| 2050 } | 2056 } |
| 2163 if( _must_clone[mop] ) { | 2169 if( _must_clone[mop] ) { |
| 2164 mstack.push(m, Visit); | 2170 mstack.push(m, Visit); |
| 2165 continue; // for(int i = ...) | 2171 continue; // for(int i = ...) |
| 2166 } | 2172 } |
| 2167 | 2173 |
| 2168 if( mop == Op_AddP && m->in(AddPNode::Base)->is_DecodeNarrowPtr()) { | |
| 2169 // Bases used in addresses must be shared but since | |
| 2170 // they are shared through a DecodeN they may appear | |
| 2171 // to have a single use so force sharing here. | |
| 2172 set_shared(m->in(AddPNode::Base)->in(1)); | |
| 2173 } | |
| 2174 | |
| 2175 // if 'n' and 'm' are part of a graph for BMI instruction, clone this node. | 2174 // if 'n' and 'm' are part of a graph for BMI instruction, clone this node. |
| 2176 #ifdef X86 | 2175 #ifdef X86 |
| 2177 if (UseBMI1Instructions && is_bmi_pattern(n, m)) { | 2176 if (UseBMI1Instructions && is_bmi_pattern(n, m)) { |
| 2178 mstack.push(m, Visit); | 2177 mstack.push(m, Visit); |
| 2179 continue; | 2178 continue; |
