MIPS: Add infrastructure to automatucally generate IC miss stubs

src/mips/code-stubs-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 143 matching lines @@
 // Check if the operand is a heap number.
 static void EmitCheckForHeapNumber(MacroAssembler* masm, Register operand,
                                    Register scratch1, Register scratch2,
                                    Label* not_a_heap_number) {
   __ lw(scratch1, FieldMemOperand(operand, HeapObject::kMapOffset));
   __ LoadRoot(scratch2, Heap::kHeapNumberMapRootIndex);
   __ Branch(not_a_heap_number, ne, scratch1, Operand(scratch2));
 }
 
 
+void HydrogenCodeStub::GenerateLightweightMiss(MacroAssembler* masm) {
+  // Update the static counter each time a new code stub is generated.
+  Isolate* isolate = masm->isolate();
+  isolate->counters()->code_stubs()->Increment();
+
+  CodeStubInterfaceDescriptor* descriptor = GetInterfaceDescriptor(isolate);
+  int param_count = descriptor->register_param_count_;
+  {
+    // Call the runtime system in a fresh internal frame.
+    FrameScope scope(masm, StackFrame::INTERNAL);
+    ASSERT(descriptor->register_param_count_ == 0 ||
+           a0.is(descriptor->register_params_[param_count - 1]));
+    // Push arguments
+    for (int i = 0; i < param_count; ++i) {
+      __ push(descriptor->register_params_[i]);
+    }
+    ExternalReference miss = descriptor->miss_handler_;
+    __ CallExternalReference(miss, descriptor->register_param_count_);
+  }
+
+  __ Ret();
+}
+
+
 void ToNumberStub::Generate(MacroAssembler* masm) {
   // The ToNumber stub takes one argument in a0.
   Label check_heap_number, call_builtin;
   __ JumpIfNotSmi(a0, &check_heap_number);
   __ Ret(USE_DELAY_SLOT);
   __ mov(v0, a0);
 
   __ bind(&check_heap_number);
   EmitCheckForHeapNumber(masm, a0, a1, t0, &call_builtin);
   __ Ret(USE_DELAY_SLOT);
@@ skipping 7347 matching lines @@
   __ Pop(ra, t1, a1);
   __ Ret();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS