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Unified Diff: src/arm64/lithium-arm64.cc

Issue 256303007: Don't add code dependencies on transitioning stores eagerly. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 8 months ago
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Index: src/arm64/lithium-arm64.cc
diff --git a/src/arm64/lithium-arm64.cc b/src/arm64/lithium-arm64.cc
index a2c3a3212073a47118dee65cf5367a540857298c..03fee2a537c1bd9b4fd92f0195053cf20191dd23 100644
--- a/src/arm64/lithium-arm64.cc
+++ b/src/arm64/lithium-arm64.cc
@@ -360,6 +360,12 @@ void LChunkBuilder::Abort(BailoutReason reason) {
}
+void LChunkBuilder::AddDeprecationDependency(Handle<Map> map) {
+ if (map->is_deprecated()) return Abort(kMapBecameDeprecated);
+ chunk_->AddDeprecationDependency(map);
+}
+
+
LUnallocated* LChunkBuilder::ToUnallocated(Register reg) {
return new(zone()) LUnallocated(LUnallocated::FIXED_REGISTER,
Register::ToAllocationIndex(reg));
@@ -2250,6 +2256,11 @@ LInstruction* LChunkBuilder::DoStoreNamedField(HStoreNamedField* instr) {
temp0 = TempRegister();
}
+ // Add a deprecation dependency on the transition target map.
+ if (instr->has_transition()) {
+ AddDeprecationDependency(instr->transition_map());
+ }
+
LStoreNamedField* result =
new(zone()) LStoreNamedField(object, value, temp0, temp1);
if (instr->field_representation().IsHeapObject() &&
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