MIPS: new classes: no longer experimental.

src/mips/builtins-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_MIPS
 
@@ skipping 789 matching lines @@
     __ Branch(&entry);
     __ bind(&loop);
     __ sll(at, t0, kPointerSizeLog2 - 1);
     __ Addu(at, a2, Operand(at));
     __ lw(at, MemOperand(at));
     __ push(at);
     __ bind(&entry);
     __ Subu(t0, t0, Operand(2));
     __ Branch(&loop, ge, t0, Operand(zero_reg));
 
+    __ Addu(a0, a0, Operand(1));
+
+    // Handle step in.
+    Label skip_step_in;
+    ExternalReference debug_step_in_fp =
+        ExternalReference::debug_step_in_fp_address(masm->isolate());
+    __ li(a2, Operand(debug_step_in_fp));
+    __ lw(a2, MemOperand(a2));
+    __ Branch(&skip_step_in, eq, a2, Operand(zero_reg));
+
+    __ Push(a0, a1, a1);
+    __ CallRuntime(Runtime::kHandleStepInForDerivedConstructors, 1);
+    __ Pop(a0, a1);
+
+    __ bind(&skip_step_in);
+
     // Call the function.
     // a0: number of arguments
     // a1: constructor function
-    __ Addu(a0, a0, Operand(1));
     ParameterCount actual(a0);
     __ InvokeFunction(a1, actual, CALL_FUNCTION, NullCallWrapper());
 
     // Restore context from the frame.
     // v0: result
     // sp[0]: number of arguments (smi-tagged)
     __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
     __ lw(a1, MemOperand(sp, 0));
 
     // Leave construct frame.
@@ skipping 837 matching lines @@
     __ break_(0xCC);
   }
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS