[aarch64-port-dev ] RFR (XS) 8228747: Revert "unused" attribute from test_arraycopy_func

[Aleksey Shipilev]

RFE:
  https://bugs.openjdk.java.net/browse/JDK-8228747

Simple reversal of the very old change. This eliminates divergence from 8u upstream.

Fix:

diff -r 7ea73682a481 src/share/vm/runtime/stubRoutines.cpp
--- a/src/share/vm/runtime/stubRoutines.cpp     Mon Jul 29 21:15:23 2019 +0200
+++ b/src/share/vm/runtime/stubRoutines.cpp     Mon Jul 29 21:34:13 2019 +0200
@@ -187,7 +187,4 @@

 // simple tests of generated arraycopy functions
-#ifdef __GNUC__
-static void test_arraycopy_func(address func, int alignment) __attribute__((unused));
-#endif
 static void test_arraycopy_func(address func, int alignment) {
   int v = 0xcc;


Testing: x86_64 (gcc 7.4), aarch64 (gcc 4.8.5) builds;

-- 
Thanks,
-Aleksey