Polymorphic inlining for some recognized methods in the optimizing compiler.

runtime/vm/intrinsifier_ia32.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
 // The intrinsic code below is executed before a method has built its frame.
 // The return address is on the stack and the arguments below it.
 // Registers EDX (arguments descriptor) and ECX (function) must be preserved.
 // Each intrinsification method returns true if the corresponding
 // Dart method was intrinsified.
 
@@ skipping 697 matching lines @@
 
 // Implementation:
 //  res = left % right;
 //  if (res < 0) {
 //    if (right < 0) {
 //      res = res - right;
 //    } else {
 //      res = res + right;
 //    }
 //  }
-bool Intrinsifier::Integer_modulo(Assembler* assembler) {
+bool Intrinsifier::Integer_moduloFromInteger(Assembler* assembler) {
   Label fall_through, subtract;
   TestBothArgumentsSmis(assembler, &fall_through);
-  // EAX: right argument (divisor)
-  __ movl(EBX, EAX);
-  __ movl(EAX, Address(ESP, + 2 * kWordSize));  // Left argument (dividend).
+  __ movl(EBX, Address(ESP, + 2 * kWordSize));
   // EAX: Tagged left (dividend).
   // EBX: Tagged right (divisor).
   // Check if modulo by zero -> exception thrown in main function.
   __ cmpl(EBX, Immediate(0));
   __ j(EQUAL, &fall_through, Assembler::kNearJump);
   EmitRemainderOperation(assembler);
   // Untagged remainder result in EDX.
   Label done;
   __ movl(EAX, EDX);
   __ cmpl(EAX, Immediate(0));
@@ skipping 1035 matching lines @@
   __ ret();
 
   __ Bind(&fall_through);
   return false;
 }
 
 #undef __
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32