Remove remaining uses of null's absolute address from non-IA32.

runtime/vm/flow_graph_compiler.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/globals.h"  // Needed here to get TARGET_ARCH_XXX.
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/bit_vector.h"
 #include "vm/cha.h"
@@ skipping 10 matching lines @@
 #include "vm/longjump.h"
 #include "vm/object_store.h"
 #include "vm/parser.h"
 #include "vm/raw_object.h"
 #include "vm/stack_frame.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
 
 namespace dart {
 
+DEFINE_FLAG(bool, allow_absolute_addresses, true,
+    "Allow embedding absolute addresses in generated code.");
 DEFINE_FLAG(bool, always_megamorphic_calls, false,
     "Instance call always as megamorphic.");
 DEFINE_FLAG(bool, enable_simd_inline, true,
     "Enable inlining of SIMD related method calls.");
 DEFINE_FLAG(int, min_optimization_counter_threshold, 5000,
     "The minimum invocation count for a function.");
 DEFINE_FLAG(int, optimization_counter_scale, 2000,
     "The scale of invocation count, by size of the function.");
 DEFINE_FLAG(bool, polymorphic_with_deopt, true,
     "Polymorphic calls can be generated so that failure either causes "
@@ skipping 72 matching lines @@
 DECLARE_FLAG(bool, link_natives_lazily);
 
 static void PrecompileModeHandler(bool value) {
   if (value) {
     NooptModeHandler(true);
     FLAG_lazy_dispatchers = false;
     FLAG_interpret_irregexp = true;
     FLAG_enable_mirrors = false;
     FLAG_precompile_collect_closures = true;
     FLAG_link_natives_lazily = true;
+    FLAG_allow_absolute_addresses = false;
   }
 }
 
 
 DEFINE_FLAG_HANDLER(PrecompileModeHandler,
                     precompile,
                     "Precompilation mode");
 
 
 // Assign locations to incoming arguments, i.e., values pushed above spill slots
@@ skipping 1699 matching lines @@
 
 
 void FlowGraphCompiler::FrameStateClear() {
   ASSERT(!is_optimizing());
   frame_state_.TruncateTo(0);
 }
 #endif
 
 
 }  // namespace dart