Reimplement Function.prototype.bind.

src/ia32/macro-assembler-ia32.cc

 // Copyright 2011 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 1474 matching lines @@
   jmp(&entry);
   bind(&loop);
   mov(Operand(start_offset, 0), filler);
   add(start_offset, Immediate(kPointerSize));
   bind(&entry);
   cmp(start_offset, end_offset);
   j(less, &loop);
 }
 
 
+void MacroAssembler::BooleanBitTest(Register object,
+                                    int field_offset,
+                                    int bit_index) {
+  bit_index += kSmiTagSize + kSmiShiftSize;
+  ASSERT(IsPowerOf2(kBitsPerByte));
+  int byte_index = bit_index / kBitsPerByte;
+  int byte_bit_index = bit_index & (kBitsPerByte - 1);
+  test_b(FieldOperand(object, field_offset + byte_index),
+         static_cast<byte>(1 << byte_bit_index));
+}
+
+
+
 void MacroAssembler::NegativeZeroTest(Register result,
                                       Register op,
                                       Label* then_label) {
   Label ok;
   test(result, result);
   j(not_zero, &ok);
   test(op, op);
   j(sign, then_label);
   bind(&ok);
 }
@@ skipping 10 matching lines @@
   mov(scratch, op1);
   or_(scratch, op2);
   j(sign, then_label);
   bind(&ok);
 }
 
 
 void MacroAssembler::TryGetFunctionPrototype(Register function,
                                              Register result,
                                              Register scratch,
-                                             Label* miss) {
+                                             Label* miss,
+                                             bool miss_on_bound_function) {
   // Check that the receiver isn't a smi.
   JumpIfSmi(function, miss);
 
   // Check that the function really is a function.
   CmpObjectType(function, JS_FUNCTION_TYPE, result);
   j(not_equal, miss);
 
+  if (miss_on_bound_function) {
+    // If a bound function, go to miss label.
+    mov(scratch,
+        FieldOperand(function, JSFunction::kSharedFunctionInfoOffset));
+    BooleanBitTest(scratch, SharedFunctionInfo::kCompilerHintsOffset,
+                   SharedFunctionInfo::kBoundFunction);
+    j(not_zero, miss);
+  }
+
   // Make sure that the function has an instance prototype.
   Label non_instance;
   movzx_b(scratch, FieldOperand(result, Map::kBitFieldOffset));
   test(scratch, Immediate(1 << Map::kHasNonInstancePrototype));
   j(not_zero, &non_instance);
 
   // Get the prototype or initial map from the function.
   mov(result,
       FieldOperand(function, JSFunction::kPrototypeOrInitialMapOffset));
 
@@ skipping 1168 matching lines @@
     cmp(length, Operand(bitmap_scratch, MemoryChunk::kSizeOffset));
     Check(less_equal, "Live Bytes Count overflow chunk size");
   }
 
   bind(&done);
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32