Optimize functions containing try-catch on ARM.

runtime/vm/flow_graph.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/flow_graph.h"
 
 #include "vm/bit_vector.h"
 #include "vm/flow_graph_builder.h"
 #include "vm/intermediate_language.h"
 #include "vm/longjump.h"
 #include "vm/growable_array.h"
 
 namespace dart {
 
 DECLARE_FLAG(bool, trace_optimization);
 DECLARE_FLAG(bool, verify_compiler);
 
-#if defined(TARGET_ARCH_ARM) || defined(TARGET_ARCH_MIPS)
+#if defined(TARGET_ARCH_MIPS)
 DEFINE_FLAG(bool, optimize_try_catch, false, "Optimization of try-catch");
 #else
 DEFINE_FLAG(bool, optimize_try_catch, true, "Optimization of try-catch");
 #endif
 
 FlowGraph::FlowGraph(const FlowGraphBuilder& builder,
                      GraphEntryInstr* graph_entry,
                      intptr_t max_block_id)
   : parent_(),
     current_ssa_temp_index_(0),
@@ skipping 1109 matching lines @@
 }
 
 
 bool BlockEffects::IsSideEffectFreePath(BlockEntryInstr* from,
                                         BlockEntryInstr* to) const {
   return available_at_[to->postorder_number()]->Contains(
       from->postorder_number());
 }
 
 }  // namespace dart