commit 7968cae11af60796b27398a95c32ff0cc31457a4
author Vladimir Marko <vmarko@google.com> Tue Jan 19 12:02:35 2021 +0000
committer Vladimir Marko <vmarko@google.com> Fri Jan 22 12:08:58 2021 +0000
tree b430aba1941e3bbe41f17ed1970c6e96100309c2
parent 47ac53100303e7e864b7f6d65f17b23088ccf1d6

arm: Implement VarHandle intrinsics for byte array views.

Using benchmarks provided by
    https://android-review.googlesource.com/1420959
on blueline little cores with fixed frequency 1420800:
                             before after
GetByteArrayViewInt          28.989 0.028
SetByteArrayViewInt          30.114 0.028
GetByteArrayViewBigEndianInt 28.974 0.030
SetByteArrayViewBigEndianInt 30.130 0.030

Test: testrunner.py --target --32 --optimizing
Bug: 71781600
Change-Id: I40c1c2fdd829f17872c457994010f78549c895de

compiler/optimizing/code_generator_arm_vixl.h

diff --git a/compiler/optimizing/code_generator_arm_vixl.h b/compiler/optimizing/code_generator_arm_vixl.h
index a310545..b797c30 100644
--- a/compiler/optimizing/code_generator_arm_vixl.h
+++ b/compiler/optimizing/code_generator_arm_vixl.h
@@ -18,6 +18,7 @@
 #define ART_COMPILER_OPTIMIZING_CODE_GENERATOR_ARM_VIXL_H_
 
 #include "base/enums.h"
+#include "class_root.h"
 #include "code_generator.h"
 #include "common_arm.h"
 #include "dex/string_reference.h"
@@ -638,7 +639,9 @@
                                                 Handle<mirror::Class> handle);
 
   void LoadBootImageAddress(vixl::aarch32::Register reg, uint32_t boot_image_reference);
+  void LoadTypeForBootImageIntrinsic(vixl::aarch32::Register reg, TypeReference type_reference);
   void LoadIntrinsicDeclaringClass(vixl::aarch32::Register reg, HInvoke* invoke);
+  void LoadClassRootForIntrinsic(vixl::aarch32::Register reg, ClassRoot class_root);
 
   void EmitLinkerPatches(ArenaVector<linker::LinkerPatch>* linker_patches) override;
   bool NeedsThunkCode(const linker::LinkerPatch& patch) const override;