8032633: Enable type speculation by default

Summary: enable type speculation
Reviewed-by: kvn

src/share/vm/opto/c2_globals.hpp

@@ -643,7 +643,7 @@
   experimental(bool, ReplaceInParentMaps, false,                            \
           "Propagate type improvements in callers of inlinee if possible")  \
                                                                             \
-  experimental(bool, UseTypeSpeculation, false,                             \
+  product(bool, UseTypeSpeculation, true,                                   \
           "Speculatively propagate types from profiles")                    \
                                                                             \
   diagnostic(bool, UseInlineDepthForSpeculativeTypes, true,                 \

test/compiler/types/TestMeetTopArrayExactConstantArray.java

@@ -25,7 +25,7 @@
  * @test
  * @bug 8027571
  * @summary meet of TopPTR exact array with constant array is not symmetric
- * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseOnStackReplacement -XX:TypeProfileLevel=222 -XX:+UnlockExperimentalVMOptions -XX:+UseTypeSpeculation -XX:-BackgroundCompilation TestMeetTopArrayExactConstantArray
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseOnStackReplacement -XX:TypeProfileLevel=222 -XX:+UseTypeSpeculation -XX:-BackgroundCompilation TestMeetTopArrayExactConstantArray
  *
  */
 

test/compiler/types/TestSpeculationFailedHigherEqual.java

@@ -25,7 +25,7 @@
  * @test
  * @bug 8027422
  * @summary type methods shouldn't always operate on speculative part
- * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:TypeProfileLevel=222 -XX:+UnlockExperimentalVMOptions -XX:+UseTypeSpeculation -XX:-BackgroundCompilation TestSpeculationFailedHigherEqual
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:TypeProfileLevel=222 -XX:+UseTypeSpeculation -XX:-BackgroundCompilation TestSpeculationFailedHigherEqual
  *
  */
 

test/compiler/types/TypeSpeculation.java

@@ -25,7 +25,7 @@
  * @test
  * @bug 8024070
  * @summary Test that type speculation doesn't cause incorrect execution
- * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:TypeProfileLevel=222 -XX:+UnlockExperimentalVMOptions -XX:+UseTypeSpeculation TypeSpeculation
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:TypeProfileLevel=222 -XX:+UseTypeSpeculation TypeSpeculation
  *
  */
 

test/compiler/uncommontrap/TestSpecTrapClassUnloading.java

@@ -25,7 +25,7 @@
  * @test
  * @bug 8031752
  * @summary speculative traps need to be cleaned up at GC
- * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:+UnlockExperimentalVMOptions -XX:+UseTypeSpeculation -XX:TypeProfileLevel=222 -XX:CompileCommand=exclude,java.lang.reflect.Method::invoke -XX:CompileCommand=exclude,sun.reflect.DelegatingMethodAccessorImpl::invoke -Xmx1M TestSpecTrapClassUnloading
+ * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:+UseTypeSpeculation -XX:TypeProfileLevel=222 -XX:CompileCommand=exclude,java.lang.reflect.Method::invoke -XX:CompileCommand=exclude,sun.reflect.DelegatingMethodAccessorImpl::invoke -Xmx1M TestSpecTrapClassUnloading
  *
  */