Make ART compile with GCC -O0 again.

Tidy up InstructionSetFeatures so that it has a type hierarchy dependent on
architecture.
Add to instruction_set_test to warn when InstructionSetFeatures don't agree
with ones from system properties, AT_HWCAP and /proc/cpuinfo.
Clean-up class linker entry point logic to not return entry points but to
test whether the passed code is the particular entrypoint. This works around
image trampolines that replicate entrypoints.
Bug: 17993736

Change-Id: I5f4b49e88c3b02a79f9bee04f83395146ed7be23

1 files changed, 3 insertions, 3 deletions

diff --git a/compiler/driver/compiler_driver.h b/compiler/driver/compiler_driver.h
index c445683500..0425d272dd 100644
--- a/compiler/driver/compiler_driver.h
+++ b/compiler/driver/compiler_driver.h
@@ -88,7 +88,7 @@ class CompilerDriver {
                           DexFileToMethodInlinerMap* method_inliner_map,
                           Compiler::Kind compiler_kind,
                           InstructionSet instruction_set,
-                          InstructionSetFeatures instruction_set_features,
+                          const InstructionSetFeatures* instruction_set_features,
                           bool image, std::set<std::string>* image_classes,
                           size_t thread_count, bool dump_stats, bool dump_passes,
                           CumulativeLogger* timer, std::string profile_file = "");
@@ -115,7 +115,7 @@ class CompilerDriver {
     return instruction_set_;
   }
 
-  InstructionSetFeatures GetInstructionSetFeatures() const {
+  const InstructionSetFeatures* GetInstructionSetFeatures() const {
     return instruction_set_features_;
   }
 
@@ -475,7 +475,7 @@ class CompilerDriver {
   std::unique_ptr<Compiler> compiler_;
 
   const InstructionSet instruction_set_;
-  const InstructionSetFeatures instruction_set_features_;
+  const InstructionSetFeatures* const instruction_set_features_;
 
   // All class references that require
   mutable ReaderWriterMutex freezing_constructor_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER;