Polymorphic inlining for some recognized methods in the optimizing compiler.

runtime/vm/intrinsifier_x64.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.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/intrinsifier.h"
 
 #include "vm/assembler.h"
@@ skipping 685 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, negative_result;
   TestBothArgumentsSmis(assembler, &fall_through);
-  // RAX: right argument (divisor)
-  __ movq(RCX, RAX);
-  __ movq(RAX, Address(RSP, + 2 * kWordSize));  // Left argument (dividend).
+  __ movq(RCX, Address(RSP, + 2 * kWordSize));
   // RAX: Tagged left (dividend).
   // RCX: Tagged right (divisor).
   __ cmpq(RCX, Immediate(0));
   __ j(EQUAL, &fall_through);
   EmitRemainderOperation(assembler);
   // Untagged remainder result in RAX.
   __ cmpq(RAX, Immediate(0));
   __ j(LESS, &negative_result, Assembler::kNearJump);
   __ SmiTag(RAX);
   __ ret();
@@ skipping 967 matching lines @@
   __ Bind(&fall_through);
   return false;
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64