A64: Disable inlining of functions that have a different context

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index c8aca403e26d5a675475880faafd9b3957e9ec47..d3515829a219ed5a7755d337d0740c7339c0acc5 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -6997,6 +6997,17 @@ bool HOptimizedGraphBuilder::TryInline(CallKind call_kind,
     return false;
   }
 
+#if V8_TARGET_ARCH_A64
+  // Target must be able to use caller's context.
+  CompilationInfo* outer_info = current_info();
+  if (target->context() != outer_info->closure()->context() ||
+      outer_info->scope()->contains_with() ||
+      outer_info->scope()->num_heap_slots() > 0) {
+    TraceInline(target, caller, "target requires context change");
+    return false;
+  }
+#endif
+
   // Don't inline deeper than the maximum number of inlining levels.
   HEnvironment* env = environment();
   int current_level = 1;
@@ -7135,8 +7146,10 @@ bool HOptimizedGraphBuilder::TryInline(CallKind call_kind,
                                      function_state()->inlining_kind(),
                                      undefined_receiver);
 
+#if !V8_TARGET_ARCH_A64
   HConstant* context = Add<HConstant>(Handle<Context>(target->context()));
   inner_env->BindContext(context);
+#endif
 
   Add<HSimulate>(return_id);
   current_block()->UpdateEnvironment(inner_env);