Refactors CPU feature detection.

runtime/vm/flow_graph_compiler_arm.cc

Index: runtime/vm/flow_graph_compiler_arm.cc
===================================================================
--- runtime/vm/flow_graph_compiler_arm.cc	(revision 32467)
+++ runtime/vm/flow_graph_compiler_arm.cc	(working copy)
@@ -9,6 +9,7 @@
 
 #include "vm/ast_printer.h"
 #include "vm/compiler.h"
+#include "vm/cpu.h"
 #include "vm/dart_entry.h"
 #include "vm/deopt_instructions.h"
 #include "vm/il_printer.h"
@@ -44,7 +45,7 @@
 
 
 bool FlowGraphCompiler::SupportsUnboxedFloat32x4() {
-  return CPUFeatures::neon_supported() && FLAG_enable_simd_inline;
+  return TargetCPUFeatures::neon_supported() && FLAG_enable_simd_inline;
 }
 
 
@@ -718,7 +719,9 @@
 
 
 void FlowGraphCompiler::EmitInstructionEpilogue(Instruction* instr) {
-  if (is_optimizing()) return;
+  if (is_optimizing()) {
+    return;
+  }
   Definition* defn = instr->AsDefinition();
   if ((defn != NULL) && defn->is_used()) {
     __ Push(defn->locs()->out().reg());