Intrinsify _StringBase._substringMatches to speedup indexOf/startsWith/endsWith under precompilatio…

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 1723 matching lines @@
   __ j(NOT_EQUAL, &fall_through, Assembler::kNearJump);
   ASSERT(kSmiTagShift == 1);
   __ movzxw(EAX, FieldAddress(EAX, EBX, TIMES_1, TwoByteString::data_offset()));
   __ SmiTag(EAX);
   __ ret();
 
   __ Bind(&fall_through);
 }
 
 
+// bool _substringMatches(int start, String other)
+void Intrinsifier::StringBaseSubstringMatches(Assembler* assembler) {
+  // For precompilation, not implemented on IA32.
+}
+
+
 void Intrinsifier::StringBaseCharAt(Assembler* assembler) {
   Label fall_through, try_two_byte_string;
   __ movl(EBX, Address(ESP, + 1 * kWordSize));  // Index.
   __ movl(EAX, Address(ESP, + 2 * kWordSize));  // String.
   __ testl(EBX, Immediate(kSmiTagMask));
   __ j(NOT_ZERO, &fall_through, Assembler::kNearJump);  // Non-smi index.
   // Range check.
   __ cmpl(EBX, FieldAddress(EAX, String::length_offset()));
   // Runtime throws exception.
   __ j(ABOVE_EQUAL, &fall_through, Assembler::kNearJump);
@@ skipping 393 matching lines @@
 void Intrinsifier::Profiler_getCurrentTag(Assembler* assembler) {
   __ LoadIsolate(EAX);
   __ movl(EAX, Address(EAX, Isolate::current_tag_offset()));
   __ ret();
 }
 
 #undef __
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32