commit cdba73be7eacf5891902e3dbeb9101c303e3bc8f
author Mathieu Chartier <mathieuc@google.com> Thu Nov 03 19:23:06 2016 -0700
committer Mathieu Chartier <mathieuc@google.com> Fri Nov 04 15:25:45 2016 -0700
tree 899c376e16c6e3947cc6f52227ef9f8802858489
parent 6adc5a8cac4eab3b847f81c422def4b4ae510332

X86_64: Inline checking for kInterfaceCheck check cast

Interface check-cast with read barriers:
Before: 5.27 ns/check
After: 2.36 ns/check

Code expansion is 0.29%.

Test: test-art-host

Bug: 32577579
Bug: 29516974

Change-Id: Ie48251f97fbf2c95bd0a7c4bd62075414f8e3ae3

compiler/optimizing/code_generator_x86_64.h

diff --git a/compiler/optimizing/code_generator_x86_64.h b/compiler/optimizing/code_generator_x86_64.h
index 8b19dad..5a6dc54 100644
--- a/compiler/optimizing/code_generator_x86_64.h
+++ b/compiler/optimizing/code_generator_x86_64.h
@@ -248,7 +248,8 @@
   void GenerateReferenceLoadTwoRegisters(HInstruction* instruction,
                                          Location out,
                                          Location obj,
-                                         uint32_t offset);
+                                         uint32_t offset,
+                                         bool emit_read_barrier);
   // Generate a GC root reference load:
   //
   //   root <- *address