Revision f230a1cf deps/v8/src/hydrogen-escape-analysis.cc
| deps/v8/src/hydrogen-escape-analysis.cc | ||
|---|---|---|
| 154 | 154 |
HValue* value = state->map_value(); |
| 155 | 155 |
// TODO(mstarzinger): This will narrow a map check against a set of maps |
| 156 | 156 |
// down to the first element in the set. Revisit and fix this. |
| 157 |
Handle<Map> map_object = mapcheck->map_set()->first(); |
|
| 158 |
UniqueValueId map_id = mapcheck->map_unique_ids()->first(); |
|
| 159 |
HCheckValue* check = HCheckValue::New(zone, NULL, value, map_object, map_id); |
|
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HCheckValue* check = HCheckValue::New( |
|
| 158 |
zone, NULL, value, mapcheck->first_map(), false); |
|
| 160 | 159 |
check->InsertBefore(mapcheck); |
| 161 | 160 |
return check; |
| 162 | 161 |
} |
| ... | ... | |
| 307 | 306 |
number_of_objects_++; |
| 308 | 307 |
block_states_.Clear(); |
| 309 | 308 |
|
| 310 |
// Perform actual analysis steps.
|
|
| 309 |
// Perform actual analysis step. |
|
| 311 | 310 |
AnalyzeDataFlow(allocate); |
| 312 | 311 |
|
| 313 | 312 |
cumulative_values_ += number_of_values_; |
| ... | ... | |
| 321 | 320 |
// TODO(mstarzinger): We disable escape analysis with OSR for now, because |
| 322 | 321 |
// spill slots might be uninitialized. Needs investigation. |
| 323 | 322 |
if (graph()->has_osr()) return; |
| 324 |
CollectCapturedValues(); |
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PerformScalarReplacement(); |
|
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int max_fixpoint_iteration_count = FLAG_escape_analysis_iterations; |
|
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for (int i = 0; i < max_fixpoint_iteration_count; i++) {
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|
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CollectCapturedValues(); |
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if (captured_.is_empty()) break; |
|
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PerformScalarReplacement(); |
|
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captured_.Clear(); |
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} |
|
| 326 | 330 |
} |
| 327 | 331 |
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| 328 | 332 |
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