Unify InvokeBuiltin implementations across architectures.

src/ppc/macro-assembler-ppc.cc

Index: src/ppc/macro-assembler-ppc.cc
diff --git a/src/ppc/macro-assembler-ppc.cc b/src/ppc/macro-assembler-ppc.cc
index b5288801edbaccefac4d7679939429afc2b40906..904072897cfeda499460f4631ae603c32e7fa1e9 100644
--- a/src/ppc/macro-assembler-ppc.cc
+++ b/src/ppc/macro-assembler-ppc.cc
@@ -2342,19 +2342,10 @@ void MacroAssembler::InvokeBuiltin(int native_context_index, InvokeFlag flag,
   // You can't call a builtin without a valid frame.
   DCHECK(flag == JUMP_FUNCTION || has_frame());
 
-  // Always initialize new target.
-  LoadRoot(r6, Heap::kUndefinedValueRootIndex);
-
+  // Fake a parameter count to avoid emitting code to do the check.
+  ParameterCount expected(0);
   LoadNativeContextSlot(native_context_index, r4);
-  LoadP(ip, FieldMemOperand(r4, JSFunction::kCodeEntryOffset));
-  if (flag == CALL_FUNCTION) {
-    call_wrapper.BeforeCall(CallSize(ip));
-    CallJSEntry(ip);
-    call_wrapper.AfterCall();
-  } else {
-    DCHECK(flag == JUMP_FUNCTION);
-    JumpToJSEntry(ip);
-  }
+  InvokeFunctionCode(r4, no_reg, expected, expected, flag, call_wrapper);
 }