Inline the fixed array constructor manually in the SSA builder. Also track whether a fixed array ev…

sdk/lib/_internal/compiler/implementation/ssa/nodes.dart

 // 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.
 
 part of ssa;
 
 abstract class HVisitor<R> {
   R visitAdd(HAdd node);
   R visitBitAnd(HBitAnd node);
   R visitBitNot(HBitNot node);
@@ skipping 1553 matching lines @@
   accept(HVisitor visitor) => visitor.visitLocalSet(this);
 
   HLocalValue get local => inputs[0];
   HInstruction get value => inputs[1];
   bool isJsStatement() => true;
 }
 
 class HForeign extends HInstruction {
   final js.Node codeAst;
   final bool isStatement;
+  final bool _canThrow;
   final native.NativeBehavior nativeBehavior;
 
   HForeign(this.codeAst,
            TypeMask type,
            List<HInstruction> inputs,
            {this.isStatement: false,
             SideEffects effects,
-            native.NativeBehavior nativeBehavior})
-      : this.nativeBehavior = nativeBehavior, super(inputs, type) {
+            native.NativeBehavior nativeBehavior,
+            canThrow: false})
+      : this.nativeBehavior = nativeBehavior,
+        this._canThrow = canThrow,
+        super(inputs, type) {
     if (effects == null && nativeBehavior != null) {
       effects = nativeBehavior.sideEffects;
     }
     if (effects != null) sideEffects.add(effects);
   }
 
   HForeign.statement(codeAst, List<HInstruction> inputs,
                      SideEffects effects,
                      native.NativeBehavior nativeBehavior,
                      TypeMask type)
       : this(codeAst, type, inputs, isStatement: true,
              effects: effects, nativeBehavior: nativeBehavior);
 
   accept(HVisitor visitor) => visitor.visitForeign(this);
 
   bool isJsStatement() => isStatement;
   bool canThrow() {
-    return sideEffects.hasSideEffects() || sideEffects.dependsOnSomething();
+    return _canThrow
+        || sideEffects.hasSideEffects()
+        || sideEffects.dependsOnSomething();
   }
 }
 
 class HForeignNew extends HForeign {
   ClassElement element;
 
   /// If this field is not `null`, this call is from an inlined constructor and
   /// we have to register the instantiated type in the code generator.
   /// The [instructionType] of this node is not enough, because we also need
   /// the type arguments.  See also [SsaBuilder.currentInlinedInstantiations].
@@ skipping 1209 matching lines @@
   HBasicBlock get start => expression.start;
   HBasicBlock get end {
     // We don't create a switch block if there are no cases.
     assert(!statements.isEmpty);
     return statements.last.end;
   }
 
   bool accept(HStatementInformationVisitor visitor) =>
       visitor.visitSwitchInfo(this);
 }