src/hotspot/cpu/arm/arm.ad

rev 54101 : 8214512: ARM32: Jtreg test compiler/c2/Test8062950.java fails on ARM
Reviewed-by: dlong, enevill, bulasevich
Contributed-by: nick.gasson@arm.com, christoph.goettschkes@microdoc.com

@@ -12014,13 +12014,14 @@
   match(Set pcc (FastLock object box));
 
 #ifdef AARCH64
   effect(TEMP scratch, TEMP scratch2, TEMP scratch3);
 #else
+  predicate(!(UseBiasedLocking && !UseOptoBiasInlining));
   effect(TEMP scratch, TEMP scratch2);
 #endif
-  ins_cost(100);
+  ins_cost(DEFAULT_COST*3);
 
 #ifdef AARCH64
   format %{ "FASTLOCK  $object, $box; KILL $scratch, $scratch2, $scratch3" %}
   ins_encode %{
     __ fast_lock($object$$Register, $box$$Register, $scratch$$Register, $scratch2$$Register, $scratch3$$Register);

@@ -12046,10 +12047,25 @@
     __ fast_unlock($object$$Register, $box$$Register, $scratch$$Register, $scratch2$$Register, $scratch3$$Register);
   %}
   ins_pipe(long_memory_op);
 %}
 #else
+instruct cmpFastLock_noBiasInline(flagsRegP pcc, iRegP object, iRegP box, iRegP scratch2,
+                                  iRegP scratch, iRegP scratch3) %{
+  match(Set pcc (FastLock object box));
+  predicate(UseBiasedLocking && !UseOptoBiasInlining);
+
+  effect(TEMP scratch, TEMP scratch2, TEMP scratch3);
+  ins_cost(DEFAULT_COST*5);
+
+  format %{ "FASTLOCK  $object, $box; KILL $scratch, $scratch2, $scratch3" %}
+  ins_encode %{
+    __ fast_lock($object$$Register, $box$$Register, $scratch$$Register, $scratch2$$Register, $scratch3$$Register);
+  %}
+  ins_pipe(long_memory_op);
+%}
+
 instruct cmpFastUnlock(flagsRegP pcc, iRegP object, iRegP box, iRegP scratch2, iRegP scratch ) %{
   match(Set pcc (FastUnlock object box));
   effect(TEMP scratch, TEMP scratch2);
   ins_cost(100);