[runtime] [proxy] Implementing [[Call]]

src/ppc/builtins-ppc.cc

Index: src/ppc/builtins-ppc.cc
diff --git a/src/ppc/builtins-ppc.cc b/src/ppc/builtins-ppc.cc
index 22382d66e002c159c3927bfb28e58bd2587404e4..ff212f0297bdfeac7185b1b2daf3a7abdf2d9cbe 100644
--- a/src/ppc/builtins-ppc.cc
+++ b/src/ppc/builtins-ppc.cc
@@ -1698,8 +1698,14 @@ void Builtins::Generate_Call(MacroAssembler* masm, ConvertReceiverMode mode) {
   __ cmpi(r8, Operand(JS_PROXY_TYPE));
   __ bne(&non_function);
 
-  // 1. Call to proxy.
-  // TODO(neis): Implement [[Call]] on proxies.
+  // 1. Runtime fallback for Proxy [[Call]].
+  __ Push(r4);
+  // Increase the arguments size to include the pushed function and the
+  // existing receiver on the stack.
+  __ addi(r3, r3, Operand(2));
+  // Tail-call to the runtime.
+  __ JumpToExternalReference(
+      ExternalReference(Runtime::kJSProxyCall, masm->isolate()));
 
   // 2. Call to something else, which might have a [[Call]] internal method (if
   // not we raise an exception).