Optimized loads/stores for scalar list: Uint8Clamped, Int8, Int16, Uint16.

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 1113 matching lines @@
 
 
 RawAbstractType* LoadIndexedInstr::CompileType() const {
   switch (class_id_) {
     case kArrayCid:
     case kImmutableArrayCid:
       return Type::DynamicType();
     case kFloat32ArrayCid :
     case kFloat64ArrayCid :
       return Type::Double();
+    case kInt8ArrayCid:
     case kUint8ArrayCid:
     case kUint8ClampedArrayCid:
     case kExternalUint8ArrayCid:
+    case kInt16ArrayCid:
+    case kUint16ArrayCid:
       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:
       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:
       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;
   }
 }
 
@@ skipping 1494 matching lines @@
                          RangeBoundary::FromConstant(0xFFFF));
       break;
     default:
       UNIMPLEMENTED();
   }
 }
 
 
 void LoadIndexedInstr::InferRange() {
   switch (class_id()) {
+    case kInt8ArrayCid:
+      range_ = new Range(RangeBoundary::FromConstant(-128),
+                         RangeBoundary::FromConstant(127));
+      break;
     case kUint8ArrayCid:
     case kUint8ClampedArrayCid:
     case kExternalUint8ArrayCid:
       range_ = new Range(RangeBoundary::FromConstant(0),
                          RangeBoundary::FromConstant(255));
       break;
+    case kInt16ArrayCid:
+      range_ = new Range(RangeBoundary::FromConstant(-32768),
+                         RangeBoundary::FromConstant(32767));
+      break;
+    case kUint16ArrayCid:
+      range_ = new Range(RangeBoundary::FromConstant(0),
+                         RangeBoundary::FromConstant(65535));
+      break;
     default:
       Definition::InferRange();
       break;
   }
 }
 
 
 void PhiInstr::InferRange() {
   RangeBoundary new_min;
   RangeBoundary new_max;
@@ skipping 253 matching lines @@
     default:
       UNREACHABLE();
       return -1;
   }
 }
 
 
 #undef __
 
 }  // namespace dart