commit e39f14ff4e0d7c70016874cff24863b912d40bf1
author Vladimir Marko <vmarko@google.com> Fri Feb 10 15:44:25 2017 +0000
committer Vladimir Marko <vmarko@google.com> Tue Feb 14 13:25:05 2017 +0000
tree 57588025e96e01ac2998cbdcf0ff12a822fdcd4e
parent 4e4b62e21672dbacf5d5abb688a126aabad29269

ARM64: Improve String.equals() intrinsic for const strings.

And add additional tests to 021-string2.

aosp_angler-userdebug:
  before:
    arm64 boot*.oat: 43324664
    arm64 boot*.oat/string compression: 43411112
  after:
    arm64 boot*.oat: 43300136 (-24528)
    arm64 boot*.oat/string compression: 43345464 (-65648)

The string compression code size difference drops from
86448 to 45328.

Test: m test-art-target on Nexus 6P
Test: m test-art-target on Nexus 6P with string compression enabled.
Bug: 31040547
Change-Id: I99a3777b91b248da2b0ac25abd260f9e5abb2c09

runtime/mirror/string.h

diff --git a/runtime/mirror/string.h b/runtime/mirror/string.h
index 409c6c2..38f6dd4 100644
--- a/runtime/mirror/string.h
+++ b/runtime/mirror/string.h
@@ -184,7 +184,9 @@
   bool IsValueNull() REQUIRES_SHARED(Locks::mutator_lock_);
 
   template<typename MemoryType>
-  static bool AllASCII(const MemoryType* const chars, const int length);
+  static bool AllASCII(const MemoryType* chars, const int length);
+
+  static bool DexFileStringAllASCII(const char* chars, const int length);
 
   ALWAYS_INLINE static bool IsCompressed(int32_t count) {
     return GetCompressionFlagFromCount(count) == StringCompressionFlag::kCompressed;