Revert of [builtins] Unify the various versions of [[Call]] with a Call builtin.

src/mips/code-stubs-mips.cc

Index: src/mips/code-stubs-mips.cc
diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index 3053cb769f0c1046142f1421b3ec15c91039a111..11b14be6671a47c84e0356a20bf4722407d10fd6 100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -2524,9 +2524,30 @@
 }
 
 
-static void EmitSlowCase(MacroAssembler* masm, int argc) {
-  __ li(a0, Operand(argc));
-  __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET);
+static void EmitSlowCase(MacroAssembler* masm,
+                         int argc,
+                         Label* non_function) {
+  // Check for function proxy.
+  __ Branch(non_function, ne, t0, Operand(JS_FUNCTION_PROXY_TYPE));
+  __ push(a1);  // put proxy as additional argument
+  __ li(a0, Operand(argc + 1, RelocInfo::NONE32));
+  __ mov(a2, zero_reg);
+  __ GetBuiltinFunction(a1, Context::CALL_FUNCTION_PROXY_BUILTIN_INDEX);
+  {
+    Handle<Code> adaptor =
+        masm->isolate()->builtins()->ArgumentsAdaptorTrampoline();
+    __ Jump(adaptor, RelocInfo::CODE_TARGET);
+  }
+
+  // CALL_NON_FUNCTION expects the non-function callee as receiver (instead
+  // of the original receiver from the call site).
+  __ bind(non_function);
+  __ sw(a1, MemOperand(sp, argc * kPointerSize));
+  __ li(a0, Operand(argc));  // Set up the number of arguments.
+  __ mov(a2, zero_reg);
+  __ GetBuiltinFunction(a1, Context::CALL_NON_FUNCTION_BUILTIN_INDEX);
+  __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(),
+          RelocInfo::CODE_TARGET);
 }
 
 
@@ -2548,12 +2569,12 @@
                                    int argc, bool needs_checks,
                                    bool call_as_method) {
   // a1 : the function to call
-  Label slow, wrap, cont;
+  Label slow, non_function, wrap, cont;
 
   if (needs_checks) {
     // Check that the function is really a JavaScript function.
     // a1: pushed function (to be verified)
-    __ JumpIfSmi(a1, &slow);
+    __ JumpIfSmi(a1, &non_function);
 
     // Goto slow case if we do not have a function.
     __ GetObjectType(a1, t0, t0);
@@ -2588,7 +2609,7 @@
   if (needs_checks) {
     // Slow-case: Non-function called.
     __ bind(&slow);
-    EmitSlowCase(masm, argc);
+    EmitSlowCase(masm, argc, &non_function);
   }
 
   if (call_as_method) {
@@ -2722,8 +2743,13 @@
   GenerateMiss(masm);
 
   // The slow case, we need this no matter what to complete a call after a miss.
-  __ li(a0, Operand(arg_count()));
-  __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET);
+  CallFunctionNoFeedback(masm,
+                         arg_count(),
+                         true,
+                         CallAsMethod());
+
+  // Unreachable.
+  __ stop("Unexpected code address");
 }
 
 
@@ -2736,7 +2762,7 @@
   const int generic_offset =
       FixedArray::OffsetOfElementAt(TypeFeedbackVector::kGenericCountIndex);
   Label extra_checks_or_miss, slow_start;
-  Label slow, wrap, cont;
+  Label slow, non_function, wrap, cont;
   Label have_js_function;
   int argc = arg_count();
   ParameterCount actual(argc);
@@ -2790,7 +2816,7 @@
   __ InvokeFunction(a1, actual, JUMP_FUNCTION, NullCallWrapper());
 
   __ bind(&slow);
-  EmitSlowCase(masm, argc);
+  EmitSlowCase(masm, argc, &non_function);
 
   if (CallAsMethod()) {
     __ bind(&wrap);
@@ -2878,7 +2904,7 @@
   __ bind(&slow_start);
   // Check that the function is really a JavaScript function.
   // r1: pushed function (to be verified)
-  __ JumpIfSmi(a1, &slow);
+  __ JumpIfSmi(a1, &non_function);
 
   // Goto slow case if we do not have a function.
   __ GetObjectType(a1, t0, t0);