Polymorphic inlining for some recognized methods in the optimizing compiler.

runtime/vm/intrinsifier_ia32.cc

Index: runtime/vm/intrinsifier_ia32.cc
===================================================================
--- runtime/vm/intrinsifier_ia32.cc	(revision 25997)
+++ runtime/vm/intrinsifier_ia32.cc	(working copy)
@@ -136,19 +136,6 @@
 }
 
 
-bool Intrinsifier::Array_getLength(Assembler* assembler) {
-  __ movl(EAX, Address(ESP, + 1 * kWordSize));
-  __ movl(EAX, FieldAddress(EAX, Array::length_offset()));
-  __ ret();
-  return true;
-}
-
-
-bool Intrinsifier::ImmutableArray_getLength(Assembler* assembler) {
-  return Array_getLength(assembler);
-}
-
-
 bool Intrinsifier::Array_getIndexed(Assembler* assembler) {
   Label fall_through;
   __ movl(EBX, Address(ESP, + 1 * kWordSize));  // Index.
@@ -315,16 +302,6 @@
 }
 
 
-// Get length of growable object array.
-// On stack: growable array (+1), return-address (+0).
-bool Intrinsifier::GrowableArray_getLength(Assembler* assembler) {
-  __ movl(EAX, Address(ESP, + 1 * kWordSize));
-  __ movl(EAX, FieldAddress(EAX, GrowableObjectArray::length_offset()));
-  __ ret();
-  return true;
-}
-
-
 // Get capacity of growable object array.
 // On stack: growable array (+1), return-address (+0).
 bool Intrinsifier::GrowableArray_getCapacity(Assembler* assembler) {
@@ -552,16 +529,6 @@
   __ Bind(&fall_through);                                                      \
 
 
-
-// Gets the length of a TypedData.
-bool Intrinsifier::TypedData_getLength(Assembler* assembler) {
-  __ movl(EAX, Address(ESP, + 1 * kWordSize));
-  __ movl(EAX, FieldAddress(EAX, TypedData::length_offset()));
-  __ ret();
-  return true;
-}
-
-
 static ScaleFactor GetScaleFactor(intptr_t size) {
   switch (size) {
     case 1: return TIMES_1;
@@ -1502,14 +1469,6 @@
 }
 
 
-bool Intrinsifier::String_getLength(Assembler* assembler) {
-  __ movl(EAX, Address(ESP, + 1 * kWordSize));  // String object.
-  __ movl(EAX, FieldAddress(EAX, String::length_offset()));
-  __ ret();
-  return true;
-}
-
-
 bool Intrinsifier::String_codeUnitAt(Assembler* assembler) {
   Label fall_through, try_two_byte_string;
   __ movl(EBX, Address(ESP, + 1 * kWordSize));  // Index.