Optimize loads and stores to Int32Array and Uint32Array.

runtime/vm/intermediate_language.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/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 1110 matching lines @@
       return Type::DynamicType();
     case kFloat32ArrayCid :
     case kFloat64ArrayCid :
       return Type::Double();
     case kInt8ArrayCid:
     case kUint8ArrayCid:
     case kUint8ClampedArrayCid:
     case kExternalUint8ArrayCid:
     case kInt16ArrayCid:
     case kUint16ArrayCid:
+    case kInt32ArrayCid:
+    case kUint32ArrayCid:
     case kOneByteStringCid:
     case kTwoByteStringCid:
       return Type::IntType();
     default:
       UNIMPLEMENTED();
       return Type::IntType();
   }
 }
 
 
-intptr_t LoadIndexedInstr::ResultCid() const {
-  switch (class_id_) {
-    case kArrayCid:
-    case kImmutableArrayCid:
-      return kDynamicCid;
-    case kFloat32ArrayCid :
-    case kFloat64ArrayCid :
-      return kDoubleCid;
-    case kInt8ArrayCid:
-    case kUint8ArrayCid:
-    case kUint8ClampedArrayCid:
-    case kExternalUint8ArrayCid:
-    case kInt16ArrayCid:
-    case kUint16ArrayCid:
-    case kOneByteStringCid:
-    case kTwoByteStringCid:
-      return kSmiCid;
-    default:
-      UNIMPLEMENTED();
-      return kSmiCid;
-  }
-}
-
-
-Representation LoadIndexedInstr::representation() const {
-  switch (class_id_) {
-    case kArrayCid:
-    case kImmutableArrayCid:
-    case kInt8ArrayCid:
-    case kUint8ArrayCid:
-    case kUint8ClampedArrayCid:
-    case kExternalUint8ArrayCid:
-    case kInt16ArrayCid:
-    case kUint16ArrayCid:
-    case kOneByteStringCid:
-    case kTwoByteStringCid:
-      return kTagged;
-    case kFloat32ArrayCid :
-    case kFloat64ArrayCid :
-      return kUnboxedDouble;
-    default:
-      UNIMPLEMENTED();
-      return kTagged;
-  }
-}
-
-
 RawAbstractType* StoreIndexedInstr::CompileType() const {
   return AbstractType::null();
 }
 
 
-Representation StoreIndexedInstr::RequiredInputRepresentation(
-    intptr_t idx) const {
-  if ((idx == 0) || (idx == 1)) return kTagged;
-  ASSERT(idx == 2);
-  switch (class_id_) {
-    case kArrayCid:
-    case kInt8ArrayCid:
-    case kUint8ArrayCid:
-    case kUint8ClampedArrayCid:
-    case kInt16ArrayCid:
-    case kUint16ArrayCid:
-      return kTagged;
-    case kFloat32ArrayCid :
-    case kFloat64ArrayCid :
-      return kUnboxedDouble;
-    default:
-      UNIMPLEMENTED();
-      return kTagged;
-  }
-}
-
-
 RawAbstractType* StoreInstanceFieldInstr::CompileType() const {
   return value()->CompileType();
 }
 
 
 RawAbstractType* LoadStaticFieldInstr::CompileType() const {
   if (FLAG_enable_type_checks) {
     return field().type();
   }
   return Type::DynamicType();
@@ skipping 1454 matching lines @@
       return ByteArray::length_offset();
     default:
       UNREACHABLE();
       return -1;
   }
 }
 
 #undef __
 
 }  // namespace dart