Unify InvokeBuiltin implementations across architectures.

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index 8eb26256d308dde7cf9b3d5fbb8ed9b69a141a5e..d0f1e4b27962abf06cb12ac883fd6a469ba61d53 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -4502,19 +4502,10 @@ 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(a3, Heap::kUndefinedValueRootIndex);
-
+  // Fake a parameter count to avoid emitting code to do the check.
+  ParameterCount expected(0);
   LoadNativeContextSlot(native_context_index, a1);
-  lw(t9, FieldMemOperand(a1, JSFunction::kCodeEntryOffset));
-  if (flag == CALL_FUNCTION) {
-    call_wrapper.BeforeCall(CallSize(t9));
-    Call(t9);
-    call_wrapper.AfterCall();
-  } else {
-    DCHECK(flag == JUMP_FUNCTION);
-    Jump(t9);
-  }
+  InvokeFunctionCode(a1, no_reg, expected, expected, flag, call_wrapper);
 }