Revert "Revert "Use trampolines for calls to helpers""

This reverts commit 081f73e888b3c246cf7635db37b7f1105cf1a2ff.

Change-Id: Ibd777f8ce73cf8ed6c4cb81d50bf6437ac28cb61

Conflicts:
	compiler/dex/quick/mir_to_lir.h
diff --git a/compiler/driver/compiler_options.h b/compiler/driver/compiler_options.h
index 20c6bc8..52248a6 100644
--- a/compiler/driver/compiler_options.h
+++ b/compiler/driver/compiler_options.h
@@ -50,7 +50,8 @@
     small_method_threshold_(kDefaultSmallMethodThreshold),
     tiny_method_threshold_(kDefaultTinyMethodThreshold),
     num_dex_methods_threshold_(kDefaultNumDexMethodsThreshold),
-    generate_gdb_information_(false)
+    generate_gdb_information_(false),
+    generate_helper_trampolines_(false)
 #ifdef ART_SEA_IR_MODE
     , sea_ir_mode_(false)
 #endif
@@ -62,7 +63,8 @@
                   size_t small_method_threshold,
                   size_t tiny_method_threshold,
                   size_t num_dex_methods_threshold,
-                  bool generate_gdb_information
+                  bool generate_gdb_information,
+                  bool generate_helper_trampolines
 #ifdef ART_SEA_IR_MODE
                   , bool sea_ir_mode
 #endif
@@ -73,7 +75,8 @@
     small_method_threshold_(small_method_threshold),
     tiny_method_threshold_(tiny_method_threshold),
     num_dex_methods_threshold_(num_dex_methods_threshold),
-    generate_gdb_information_(generate_gdb_information)
+    generate_gdb_information_(generate_gdb_information),
+    generate_helper_trampolines_(generate_helper_trampolines)
 #ifdef ART_SEA_IR_MODE
     , sea_ir_mode_(sea_ir_mode)
 #endif
@@ -140,6 +143,10 @@
     return generate_gdb_information_;
   }
 
+  bool GenerateHelperTrampolines() const {
+    return generate_helper_trampolines_;
+  }
+
  private:
   CompilerFilter compiler_filter_;
   size_t huge_method_threshold_;
@@ -148,6 +155,7 @@
   size_t tiny_method_threshold_;
   size_t num_dex_methods_threshold_;
   bool generate_gdb_information_;
+  bool generate_helper_trampolines_;
 
 #ifdef ART_SEA_IR_MODE
   bool sea_ir_mode_;