X87: Preliminary support for block contexts in hydrogen.

src/x87/lithium-x87.cc

Index: src/x87/lithium-x87.cc
===================================================================
--- src/x87/lithium-x87.cc	(revision 21700)
+++ src/x87/lithium-x87.cc	(working copy)
@@ -2639,6 +2639,22 @@
 }
 
 
+LInstruction* LChunkBuilder::DoStoreFrameContext(HStoreFrameContext* instr) {
+  LOperand* context = UseRegisterAtStart(instr->context());
+  return new(zone()) LStoreFrameContext(context);
+}
+
+
+LInstruction* LChunkBuilder::DoAllocateBlockContext(
+    HAllocateBlockContext* instr) {
+  LOperand* context = UseFixed(instr->context(), esi);
+  LOperand* function = UseRegisterAtStart(instr->function());
+  LAllocateBlockContext* result =
+      new(zone()) LAllocateBlockContext(context, function);
+  return MarkAsCall(DefineFixed(result, esi), instr);
+}
+
+
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X87