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Unified Diff: src/hydrogen-instructions.h

Issue 19888006: Also eliminate map checks with transitions. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Add test Created 7 years, 5 months ago
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Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index 12ad19872312cf55765dca25c47d3e7f23da5df7..551b225f68260ac1111274b45e574a6f0fa01059 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -2750,27 +2750,7 @@ class HCheckMaps: public HTemplateInstruction<2> {
}
static HCheckMaps* NewWithTransitions(HValue* value, Handle<Map> map,
- Zone* zone) {
- HCheckMaps* check_map = new(zone) HCheckMaps(value, zone, value);
- check_map->map_set_.Add(map, zone);
-
- // Since transitioned elements maps of the initial map don't fail the map
- // check, the CheckMaps instruction doesn't need to depend on ElementsKinds.
- check_map->ClearGVNFlag(kDependsOnElementsKind);
-
- ElementsKind kind = map->elements_kind();
- bool packed = IsFastPackedElementsKind(kind);
- while (CanTransitionToMoreGeneralFastElementsKind(kind, packed)) {
- kind = GetNextMoreGeneralFastElementsKind(kind, packed);
- Map* transitioned_map =
- map->LookupElementsTransitionMap(kind);
- if (transitioned_map) {
- check_map->map_set_.Add(Handle<Map>(transitioned_map), zone);
- }
- };
- check_map->map_set_.Sort();
- return check_map;
- }
+ Zone* zone, CompilationInfo* info);
bool CanOmitMapChecks() { return omit_; }
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