Preliminary support for block contexts in hydrogen.

src/arm64/lithium-codegen-arm64.cc

Index: src/arm64/lithium-codegen-arm64.cc
diff --git a/src/arm64/lithium-codegen-arm64.cc b/src/arm64/lithium-codegen-arm64.cc
index 00a8748fb72f865db97a74ed0163e1a589770ed4..5b0388c6e920fb7965f8b8b6b308ef4598d98f08 100644
--- a/src/arm64/lithium-codegen-arm64.cc
+++ b/src/arm64/lithium-codegen-arm64.cc
@@ -6039,4 +6039,21 @@ void LCodeGen::DoLoadFieldByIndex(LLoadFieldByIndex* instr) {
   __ Bind(&done);
 }
 
+
+void LCodeGen::DoStoreFrameContext(LStoreFrameContext* instr) {
+  Register context = ToRegister(instr->context());
+  __ Str(context, MemOperand(fp, StandardFrameConstants::kContextOffset));
+}
+
+
+void LCodeGen::DoAllocateBlockContext(LAllocateBlockContext* instr) {
+  Handle<ScopeInfo> scope_info = instr->scope_info();
+  __ Push(scope_info);
+  __ Push(ToRegister(instr->function()));
+  CallRuntime(Runtime::kHiddenPushBlockContext, 2, instr);
+  RecordSafepoint(Safepoint::kNoLazyDeopt);
+}
+
+
+
 } }  // namespace v8::internal