X87: Preliminary support for block contexts in hydrogen.

src/x87/lithium-codegen-x87.cc

Index: src/x87/lithium-codegen-x87.cc
===================================================================
--- src/x87/lithium-codegen-x87.cc	(revision 21700)
+++ src/x87/lithium-codegen-x87.cc	(working copy)
@@ -5680,6 +5680,21 @@
 }
 
 
+void LCodeGen::DoStoreFrameContext(LStoreFrameContext* instr) {
+  Register context = ToRegister(instr->context());
+  __ mov(Operand(ebp, StandardFrameConstants::kContextOffset), context);
+}
+
+
+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);
+}
+
+
 #undef __
 
 } }  // namespace v8::internal