Store pointer instead of reference to LocalVariable in ast and flow graph.

runtime/vm/intermediate_language_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/intermediate_language.h"
 
 #include "lib/error.h"
@@ skipping 118 matching lines @@
 
 LocationSummary* LoadLocalComp::MakeLocationSummary() const {
   return LocationSummary::Make(0,
                                Location::RequiresRegister(),
                                LocationSummary::kNoCall);
 }
 
 
 void LoadLocalComp::EmitNativeCode(FlowGraphCompiler* compiler) {
   Register result = locs()->out().reg();
-  __ movq(result, Address(RBP, local().index() * kWordSize));
+  __ movq(result, Address(RBP, local()->index() * kWordSize));
 }
 
 
 LocationSummary* StoreLocalComp::MakeLocationSummary() const {
   return LocationSummary::Make(1,
                                Location::SameAsFirstInput(),
                                LocationSummary::kNoCall);
 }
 
 
 void StoreLocalComp::EmitNativeCode(FlowGraphCompiler* compiler) {
   Register value = locs()->in(0).reg();
   Register result = locs()->out().reg();
   ASSERT(result == value);  // Assert that register assignment is correct.
-  __ movq(Address(RBP, local().index() * kWordSize), value);
+  __ movq(Address(RBP, local()->index() * kWordSize), value);
 }
 
 
 LocationSummary* ConstantVal::MakeLocationSummary() const {
   return LocationSummary::Make(0,
                                Location::RequiresRegister(),
                                LocationSummary::kNoCall);
 }
 
 
@@ skipping 1303 matching lines @@
 // exception and stack trace variables.
 void CatchEntryComp::EmitNativeCode(FlowGraphCompiler* compiler) {
   // Restore RSP from RBP as we are coming from a throw and the code for
   // popping arguments has not been run.
   const intptr_t locals_space_size = compiler->StackSize() * kWordSize;
   ASSERT(locals_space_size >= 0);
   const intptr_t offset_size =
       -locals_space_size + FlowGraphCompiler::kLocalsOffsetFromFP;
   __ leaq(RSP, Address(RBP, offset_size));
 
-  ASSERT(!exception_var().is_captured());
-  ASSERT(!stacktrace_var().is_captured());
-  __ movq(Address(RBP, exception_var().index() * kWordSize),
+  ASSERT(!exception_var()->is_captured());
+  ASSERT(!stacktrace_var()->is_captured());
+  __ movq(Address(RBP, exception_var()->index() * kWordSize),
           kExceptionObjectReg);
-  __ movq(Address(RBP, stacktrace_var().index() * kWordSize),
+  __ movq(Address(RBP, stacktrace_var()->index() * kWordSize),
           kStackTraceObjectReg);
 }
 
 
 LocationSummary* CheckStackOverflowComp::MakeLocationSummary() const {
   const intptr_t kNumInputs = 0;
   const intptr_t kNumTemps = 1;
   // TODO(vegorov): spilling is required only on an infrequently executed path.
   LocationSummary* summary =
       new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kCall);
@@ skipping 710 matching lines @@
   ASSERT(locs()->out().reg() == RAX);
   __ CompareObject(locs()->out().reg(), compiler->bool_true());
   EmitBranchOnCondition(compiler, branch_condition);
 }
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_X64