Inline native String.charCodeAt in optimized code.

runtime/vm/intermediate_language.cc

 // Copyright (c) 2012, 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/intermediate_language.h"
 
 #include "vm/bit_vector.h"
 #include "vm/dart_entry.h"
 #include "vm/flow_graph_allocator.h"
 #include "vm/flow_graph_builder.h"
@@ skipping 135 matching lines @@
 bool LoadStaticFieldInstr::AttributesEqual(Instruction* other) const {
   LoadStaticFieldInstr* other_load = other->AsLoadStaticField();
   ASSERT(other_load != NULL);
   // Assert that the field is initialized.
   ASSERT(field().value() != Object::sentinel());
   ASSERT(field().value() != Object::transition_sentinel());
   return field().raw() == other_load->field().raw();
 }
 
 
+bool StringCharCodeAtInstr::AttributesEqual(Instruction* other) const {
+  StringCharCodeAtInstr* other_load = other->AsStringCharCodeAt();
+  ASSERT(other_load != NULL);
+  return class_id() == other_load->class_id();
+}
+
+
 bool LoadIndexedInstr::AttributesEqual(Instruction* other) const {
   LoadIndexedInstr* other_load = other->AsLoadIndexed();
   ASSERT(other_load != NULL);
   return class_id() == other_load->class_id();
 }
 
 
 bool ConstantInstr::AttributesEqual(Instruction* other) const {
   ConstantInstr* other_constant = other->AsConstant();
   ASSERT(other_constant != NULL);
@@ skipping 940 matching lines @@
 
 
 RawAbstractType* NativeCallInstr::CompileType() const {
   // The result type of the native function is identical to the result type of
   // the enclosing native Dart function. However, we prefer to check the type
   // of the value returned from the native call.
   return Type::DynamicType();
 }
 
 
+RawAbstractType* StringCharCodeAtInstr::CompileType() const {
+  return Type::IntType();
+}
+
+
+intptr_t StringCharCodeAtInstr::ResultCid() const {
+  return kSmiCid;
+}
+
+
 RawAbstractType* LoadIndexedInstr::CompileType() const {
   switch (class_id_) {
     case kArrayCid:
     case kGrowableObjectArrayCid:
     case kImmutableArrayCid:
       return Type::DynamicType();
     case kFloat32ArrayCid :
     case kFloat64ArrayCid :
       return Type::Double();
     default:
@@ skipping 1472 matching lines @@
   // Try symbolic comparison.
   do {
     if (DependOnSameSymbol(max, length)) return max.offset() < length.offset();
   } while (CanonicalizeMaxBoundary(&max) || CanonicalizeMinBoundary(&length));
 
   // Failed to prove that maximum is bounded with array length.
   return false;
 }
 
 
+intptr_t CheckArrayBoundInstr::LengthOffsetFor(intptr_t class_id) {
+  switch (class_id) {
+    case kGrowableObjectArrayCid:
+      return GrowableObjectArray::length_offset();
+    case kFloat64ArrayCid:
+      return Float64Array::length_offset();
+    case kFloat32ArrayCid:
+      return Float32Array::length_offset();
+    case kOneByteStringCid:
+    case kTwoByteStringCid:
+      return String::length_offset();
+    case kArrayCid:
+    case kImmutableArrayCid:
+      return Array::length_offset();
+    default:
+      UNREACHABLE();
+      return -1;
+  }
+}
+
 #undef __
 
 }  // namespace dart