New linear scan allocator.

runtime/vm/flow_graph_compiler_x64.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/globals.h"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "lib/error.h"
@@ skipping 30 matching lines @@
     // frame and recreate non-optimized one.
     __ leaq(RSP,
             Address(RBP, ParsedFunction::kFirstLocalSlotIndex * kWordSize));
 
     const GrowableArray<Value*>& values = deoptimization_env_->values();
     for (intptr_t i = 0; i < values.length(); i++) {
       const Location loc = deoptimization_env_->LocationAt(i);
       if (loc.IsInvalid()) {
         ASSERT(values[i]->IsConstant());
         __ PushObject(values[i]->AsConstant()->value());
+      } else if (loc.IsRegister()) {
+        __ pushq(loc.reg());
       } else {
-        ASSERT(loc.IsRegister());
-        __ pushq(loc.reg());
+        compiler->Bailout("unsupported deoptimization state");
       }
     }
   }
 
   if (compiler->IsLeaf()) {
     Label L;
     __ call(&L);
     const intptr_t offset = assem->CodeSize();
     __ Bind(&L);
     __ popq(RAX);
@@ skipping 1142 matching lines @@
 void ParallelMoveResolver::Exchange(const Address& mem1, const Address& mem2) {
   __ Exchange(mem1, mem2);
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64