changeset 8744:abf45dd6ae7c

8130832: Extend the WhiteBox API to provide information about the availability of compiler intrinsics Summary: Add a new method, sun.hotspot.WhiteBox.isIntrinsicAvailable, that can be used to determine if an intrinsic is available. Reviewed-by: kvn, jrose
author zmajo
date Tue, 28 Jul 2015 19:20:42 +0200
parents 2f0b9ea6096a
children 850de1d9b5fc 118468cea331
files src/share/vm/c1/c1_Compiler.cpp src/share/vm/c1/c1_Compiler.hpp src/share/vm/c1/c1_GraphBuilder.cpp src/share/vm/c1/c1_GraphBuilder.hpp src/share/vm/classfile/vmSymbols.cpp src/share/vm/classfile/vmSymbols.hpp src/share/vm/compiler/abstractCompiler.hpp src/share/vm/opto/c2compiler.cpp src/share/vm/opto/c2compiler.hpp src/share/vm/opto/library_call.cpp src/share/vm/prims/whitebox.cpp test/compiler/intrinsics/IntrinsicAvailableTest.java test/compiler/intrinsics/mathexact/sanity/IntrinsicBase.java test/compiler/intrinsics/mathexact/sanity/MathIntrinsic.java
diffstat 14 files changed, 1353 insertions(+), 613 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/vm/c1/c1_Compiler.cpp	Tue Jul 21 13:36:28 2015 +0000
+++ b/src/share/vm/c1/c1_Compiler.cpp	Tue Jul 28 19:20:42 2015 +0200
@@ -99,6 +99,164 @@
   return buffer_blob;
 }
 
+bool Compiler::is_intrinsic_supported(methodHandle method) {
+  vmIntrinsics::ID id = method->intrinsic_id();
+  assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+
+  if (method->is_synchronized()) {
+    // C1 does not support intrinsification of synchronized methods.
+    return false;
+  }
+
+  switch (id) {
+  case vmIntrinsics::_compareAndSwapLong:
+    if (!VM_Version::supports_cx8()) return false;
+    break;
+  case vmIntrinsics::_getAndAddInt:
+    if (!VM_Version::supports_atomic_getadd4()) return false;
+    break;
+  case vmIntrinsics::_getAndAddLong:
+    if (!VM_Version::supports_atomic_getadd8()) return false;
+    break;
+  case vmIntrinsics::_getAndSetInt:
+    if (!VM_Version::supports_atomic_getset4()) return false;
+    break;
+  case vmIntrinsics::_getAndSetLong:
+    if (!VM_Version::supports_atomic_getset8()) return false;
+    break;
+  case vmIntrinsics::_getAndSetObject:
+#ifdef _LP64
+    if (!UseCompressedOops && !VM_Version::supports_atomic_getset8()) return false;
+    if (UseCompressedOops && !VM_Version::supports_atomic_getset4()) return false;
+#else
+    if (!VM_Version::supports_atomic_getset4()) return false;
+#endif
+    break;
+  case vmIntrinsics::_arraycopy:
+  case vmIntrinsics::_currentTimeMillis:
+  case vmIntrinsics::_nanoTime:
+  case vmIntrinsics::_Reference_get:
+    // Use the intrinsic version of Reference.get() so that the value in
+    // the referent field can be registered by the G1 pre-barrier code.
+    // Also to prevent commoning reads from this field across safepoint
+    // since GC can change its value.
+  case vmIntrinsics::_loadFence:
+  case vmIntrinsics::_storeFence:
+  case vmIntrinsics::_fullFence:
+  case vmIntrinsics::_floatToRawIntBits:
+  case vmIntrinsics::_intBitsToFloat:
+  case vmIntrinsics::_doubleToRawLongBits:
+  case vmIntrinsics::_longBitsToDouble:
+  case vmIntrinsics::_getClass:
+  case vmIntrinsics::_isInstance:
+  case vmIntrinsics::_currentThread:
+  case vmIntrinsics::_dabs:
+  case vmIntrinsics::_dsqrt:
+  case vmIntrinsics::_dsin:
+  case vmIntrinsics::_dcos:
+  case vmIntrinsics::_dtan:
+  case vmIntrinsics::_dlog:
+  case vmIntrinsics::_dlog10:
+  case vmIntrinsics::_dexp:
+  case vmIntrinsics::_dpow:
+  case vmIntrinsics::_getObject:
+  case vmIntrinsics::_getBoolean:
+  case vmIntrinsics::_getByte:
+  case vmIntrinsics::_getShort:
+  case vmIntrinsics::_getChar:
+  case vmIntrinsics::_getInt:
+  case vmIntrinsics::_getLong:
+  case vmIntrinsics::_getFloat:
+  case vmIntrinsics::_getDouble:
+  case vmIntrinsics::_putObject:
+  case vmIntrinsics::_putBoolean:
+  case vmIntrinsics::_putByte:
+  case vmIntrinsics::_putShort:
+  case vmIntrinsics::_putChar:
+  case vmIntrinsics::_putInt:
+  case vmIntrinsics::_putLong:
+  case vmIntrinsics::_putFloat:
+  case vmIntrinsics::_putDouble:
+  case vmIntrinsics::_getObjectVolatile:
+  case vmIntrinsics::_getBooleanVolatile:
+  case vmIntrinsics::_getByteVolatile:
+  case vmIntrinsics::_getShortVolatile:
+  case vmIntrinsics::_getCharVolatile:
+  case vmIntrinsics::_getIntVolatile:
+  case vmIntrinsics::_getLongVolatile:
+  case vmIntrinsics::_getFloatVolatile:
+  case vmIntrinsics::_getDoubleVolatile:
+  case vmIntrinsics::_putObjectVolatile:
+  case vmIntrinsics::_putBooleanVolatile:
+  case vmIntrinsics::_putByteVolatile:
+  case vmIntrinsics::_putShortVolatile:
+  case vmIntrinsics::_putCharVolatile:
+  case vmIntrinsics::_putIntVolatile:
+  case vmIntrinsics::_putLongVolatile:
+  case vmIntrinsics::_putFloatVolatile:
+  case vmIntrinsics::_putDoubleVolatile:
+  case vmIntrinsics::_getByte_raw:
+  case vmIntrinsics::_getShort_raw:
+  case vmIntrinsics::_getChar_raw:
+  case vmIntrinsics::_getInt_raw:
+  case vmIntrinsics::_getLong_raw:
+  case vmIntrinsics::_getFloat_raw:
+  case vmIntrinsics::_getDouble_raw:
+  case vmIntrinsics::_putByte_raw:
+  case vmIntrinsics::_putShort_raw:
+  case vmIntrinsics::_putChar_raw:
+  case vmIntrinsics::_putInt_raw:
+  case vmIntrinsics::_putLong_raw:
+  case vmIntrinsics::_putFloat_raw:
+  case vmIntrinsics::_putDouble_raw:
+  case vmIntrinsics::_putOrderedObject:
+  case vmIntrinsics::_putOrderedInt:
+  case vmIntrinsics::_putOrderedLong:
+  case vmIntrinsics::_getShortUnaligned:
+  case vmIntrinsics::_getCharUnaligned:
+  case vmIntrinsics::_getIntUnaligned:
+  case vmIntrinsics::_getLongUnaligned:
+  case vmIntrinsics::_putShortUnaligned:
+  case vmIntrinsics::_putCharUnaligned:
+  case vmIntrinsics::_putIntUnaligned:
+  case vmIntrinsics::_putLongUnaligned:
+  case vmIntrinsics::_checkIndex:
+  case vmIntrinsics::_updateCRC32:
+  case vmIntrinsics::_updateBytesCRC32:
+  case vmIntrinsics::_updateByteBufferCRC32:
+  case vmIntrinsics::_compareAndSwapInt:
+  case vmIntrinsics::_compareAndSwapObject:
+#ifdef TRACE_HAVE_INTRINSICS
+  case vmIntrinsics::_classID:
+  case vmIntrinsics::_threadID:
+  case vmIntrinsics::_counterTime:
+#endif
+    break;
+  default:
+    return false; // Intrinsics not on the previous list are not available.
+  }
+
+  return true;
+}
+
+bool Compiler::is_intrinsic_disabled_by_flag(methodHandle method) {
+  vmIntrinsics::ID id = method->intrinsic_id();
+  assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+
+  if (vmIntrinsics::is_disabled_by_flags(id)) {
+    return true;
+  }
+
+  if (!InlineNatives && id != vmIntrinsics::_Reference_get) {
+    return true;
+  }
+
+  if (!InlineClassNatives && id == vmIntrinsics::_getClass) {
+    return true;
+  }
+
+  return false;
+}
 
 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) {
   BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
@@ -117,3 +275,7 @@
 void Compiler::print_timers() {
   Compilation::print_timers();
 }
+
+bool Compiler::is_intrinsic_available(methodHandle method, methodHandle compilation_context) {
+  return is_intrinsic_supported(method) && !is_intrinsic_disabled_by_flag(method);
+}
--- a/src/share/vm/c1/c1_Compiler.hpp	Tue Jul 21 13:36:28 2015 +0000
+++ b/src/share/vm/c1/c1_Compiler.hpp	Tue Jul 28 19:20:42 2015 +0200
@@ -55,6 +55,18 @@
   // Print compilation timers and statistics
   virtual void print_timers();
 
+  // Check the availability of an intrinsic for 'method' given a compilation context.
+  // The compilation context is needed to support per-method usage of the
+  // DisableIntrinsic flag. However, as C1 ignores the DisableIntrinsic flag, it
+  // ignores the compilation context.
+  virtual bool is_intrinsic_available(methodHandle method, methodHandle compilation_context);
+
+  // Check if the C1 compiler supports an intrinsic for 'method'.
+  virtual bool is_intrinsic_supported(methodHandle method);
+
+  // Processing of command-line flags specific to the C1 compiler.
+  virtual bool is_intrinsic_disabled_by_flag(methodHandle method);
+
   // Size of the code buffer
   static int code_buffer_size();
 };
--- a/src/share/vm/c1/c1_GraphBuilder.cpp	Tue Jul 21 13:36:28 2015 +0000
+++ b/src/share/vm/c1/c1_GraphBuilder.cpp	Tue Jul 28 19:20:42 2015 +0200
@@ -3372,231 +3372,85 @@
   return NULL;
 }
 
-
-bool GraphBuilder::try_inline_intrinsics(ciMethod* callee) {
-  if (callee->is_synchronized()) {
-    // We don't currently support any synchronized intrinsics
-    return false;
+void GraphBuilder::build_graph_for_intrinsic(ciMethod* callee) {
+  vmIntrinsics::ID id = callee->intrinsic_id();
+  assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+
+  // Some intrinsics need special IR nodes.
+  switch(id) {
+  case vmIntrinsics::_getObject          : append_unsafe_get_obj(callee, T_OBJECT,  false); return;
+  case vmIntrinsics::_getBoolean         : append_unsafe_get_obj(callee, T_BOOLEAN, false); return;
+  case vmIntrinsics::_getByte            : append_unsafe_get_obj(callee, T_BYTE,    false); return;
+  case vmIntrinsics::_getShort           : append_unsafe_get_obj(callee, T_SHORT,   false); return;
+  case vmIntrinsics::_getChar            : append_unsafe_get_obj(callee, T_CHAR,    false); return;
+  case vmIntrinsics::_getInt             : append_unsafe_get_obj(callee, T_INT,     false); return;
+  case vmIntrinsics::_getLong            : append_unsafe_get_obj(callee, T_LONG,    false); return;
+  case vmIntrinsics::_getFloat           : append_unsafe_get_obj(callee, T_FLOAT,   false); return;
+  case vmIntrinsics::_getDouble          : append_unsafe_get_obj(callee, T_DOUBLE,  false); return;
+  case vmIntrinsics::_putObject          : append_unsafe_put_obj(callee, T_OBJECT,  false); return;
+  case vmIntrinsics::_putBoolean         : append_unsafe_put_obj(callee, T_BOOLEAN, false); return;
+  case vmIntrinsics::_putByte            : append_unsafe_put_obj(callee, T_BYTE,    false); return;
+  case vmIntrinsics::_putShort           : append_unsafe_put_obj(callee, T_SHORT,   false); return;
+  case vmIntrinsics::_putChar            : append_unsafe_put_obj(callee, T_CHAR,    false); return;
+  case vmIntrinsics::_putInt             : append_unsafe_put_obj(callee, T_INT,     false); return;
+  case vmIntrinsics::_putLong            : append_unsafe_put_obj(callee, T_LONG,    false); return;
+  case vmIntrinsics::_putFloat           : append_unsafe_put_obj(callee, T_FLOAT,   false); return;
+  case vmIntrinsics::_putDouble          : append_unsafe_put_obj(callee, T_DOUBLE,  false); return;
+  case vmIntrinsics::_getShortUnaligned  : append_unsafe_get_obj(callee, T_SHORT,   false); return;
+  case vmIntrinsics::_getCharUnaligned   : append_unsafe_get_obj(callee, T_CHAR,    false); return;
+  case vmIntrinsics::_getIntUnaligned    : append_unsafe_get_obj(callee, T_INT,     false); return;
+  case vmIntrinsics::_getLongUnaligned   : append_unsafe_get_obj(callee, T_LONG,    false); return;
+  case vmIntrinsics::_putShortUnaligned  : append_unsafe_put_obj(callee, T_SHORT,   false); return;
+  case vmIntrinsics::_putCharUnaligned   : append_unsafe_put_obj(callee, T_CHAR,    false); return;
+  case vmIntrinsics::_putIntUnaligned    : append_unsafe_put_obj(callee, T_INT,     false); return;
+  case vmIntrinsics::_putLongUnaligned   : append_unsafe_put_obj(callee, T_LONG,    false); return;
+  case vmIntrinsics::_getObjectVolatile  : append_unsafe_get_obj(callee, T_OBJECT,  true); return;
+  case vmIntrinsics::_getBooleanVolatile : append_unsafe_get_obj(callee, T_BOOLEAN, true); return;
+  case vmIntrinsics::_getByteVolatile    : append_unsafe_get_obj(callee, T_BYTE,    true); return;
+  case vmIntrinsics::_getShortVolatile   : append_unsafe_get_obj(callee, T_SHORT,   true); return;
+  case vmIntrinsics::_getCharVolatile    : append_unsafe_get_obj(callee, T_CHAR,    true); return;
+  case vmIntrinsics::_getIntVolatile     : append_unsafe_get_obj(callee, T_INT,     true); return;
+  case vmIntrinsics::_getLongVolatile    : append_unsafe_get_obj(callee, T_LONG,    true); return;
+  case vmIntrinsics::_getFloatVolatile   : append_unsafe_get_obj(callee, T_FLOAT,   true); return;
+  case vmIntrinsics::_getDoubleVolatile  : append_unsafe_get_obj(callee, T_DOUBLE,  true); return;
+  case vmIntrinsics::_putObjectVolatile  : append_unsafe_put_obj(callee, T_OBJECT,  true); return;
+  case vmIntrinsics::_putBooleanVolatile : append_unsafe_put_obj(callee, T_BOOLEAN, true); return;
+  case vmIntrinsics::_putByteVolatile    : append_unsafe_put_obj(callee, T_BYTE,    true); return;
+  case vmIntrinsics::_putShortVolatile   : append_unsafe_put_obj(callee, T_SHORT,   true); return;
+  case vmIntrinsics::_putCharVolatile    : append_unsafe_put_obj(callee, T_CHAR,    true); return;
+  case vmIntrinsics::_putIntVolatile     : append_unsafe_put_obj(callee, T_INT,     true); return;
+  case vmIntrinsics::_putLongVolatile    : append_unsafe_put_obj(callee, T_LONG,    true); return;
+  case vmIntrinsics::_putFloatVolatile   : append_unsafe_put_obj(callee, T_FLOAT,   true); return;
+  case vmIntrinsics::_putDoubleVolatile  : append_unsafe_put_obj(callee, T_DOUBLE,  true); return;
+  case vmIntrinsics::_getByte_raw        : append_unsafe_get_raw(callee, T_BYTE  ); return;
+  case vmIntrinsics::_getShort_raw       : append_unsafe_get_raw(callee, T_SHORT ); return;
+  case vmIntrinsics::_getChar_raw        : append_unsafe_get_raw(callee, T_CHAR  ); return;
+  case vmIntrinsics::_getInt_raw         : append_unsafe_get_raw(callee, T_INT   ); return;
+  case vmIntrinsics::_getLong_raw        : append_unsafe_get_raw(callee, T_LONG  ); return;
+  case vmIntrinsics::_getFloat_raw       : append_unsafe_get_raw(callee, T_FLOAT ); return;
+  case vmIntrinsics::_getDouble_raw      : append_unsafe_get_raw(callee, T_DOUBLE); return;
+  case vmIntrinsics::_putByte_raw        : append_unsafe_put_raw(callee, T_BYTE  ); return;
+  case vmIntrinsics::_putShort_raw       : append_unsafe_put_raw(callee, T_SHORT ); return;
+  case vmIntrinsics::_putChar_raw        : append_unsafe_put_raw(callee, T_CHAR  ); return;
+  case vmIntrinsics::_putInt_raw         : append_unsafe_put_raw(callee, T_INT   ); return;
+  case vmIntrinsics::_putLong_raw        : append_unsafe_put_raw(callee, T_LONG  ); return;
+  case vmIntrinsics::_putFloat_raw       : append_unsafe_put_raw(callee, T_FLOAT ); return;
+  case vmIntrinsics::_putDouble_raw      : append_unsafe_put_raw(callee, T_DOUBLE);  return;
+  case vmIntrinsics::_putOrderedObject   : append_unsafe_put_obj(callee, T_OBJECT,  true); return;
+  case vmIntrinsics::_putOrderedInt      : append_unsafe_put_obj(callee, T_INT,     true); return;
+  case vmIntrinsics::_putOrderedLong     : append_unsafe_put_obj(callee, T_LONG,    true); return;
+  case vmIntrinsics::_compareAndSwapLong:
+  case vmIntrinsics::_compareAndSwapInt:
+  case vmIntrinsics::_compareAndSwapObject: append_unsafe_CAS(callee); return;
+  case vmIntrinsics::_getAndAddInt:
+  case vmIntrinsics::_getAndAddLong      : append_unsafe_get_and_set_obj(callee, true); return;
+  case vmIntrinsics::_getAndSetInt       :
+  case vmIntrinsics::_getAndSetLong      :
+  case vmIntrinsics::_getAndSetObject    : append_unsafe_get_and_set_obj(callee, false); return;
+  default:
+    break;
   }
 
-  // callee seems like a good candidate
-  // determine id
-  vmIntrinsics::ID id = callee->intrinsic_id();
-  if (!InlineNatives && id != vmIntrinsics::_Reference_get) {
-    // InlineNatives does not control Reference.get
-    INLINE_BAILOUT("intrinsic method inlining disabled");
-  }
-  bool preserves_state = false;
-  bool cantrap = true;
-  switch (id) {
-    case vmIntrinsics::_arraycopy:
-      if (!InlineArrayCopy) return false;
-      break;
-
-#ifdef TRACE_HAVE_INTRINSICS
-    case vmIntrinsics::_classID:
-    case vmIntrinsics::_threadID:
-      preserves_state = true;
-      cantrap = true;
-      break;
-
-    case vmIntrinsics::_counterTime:
-      preserves_state = true;
-      cantrap = false;
-      break;
-#endif
-
-    case vmIntrinsics::_currentTimeMillis:
-    case vmIntrinsics::_nanoTime:
-      preserves_state = true;
-      cantrap = false;
-      break;
-
-    case vmIntrinsics::_floatToRawIntBits   :
-    case vmIntrinsics::_intBitsToFloat      :
-    case vmIntrinsics::_doubleToRawLongBits :
-    case vmIntrinsics::_longBitsToDouble    :
-      if (!InlineMathNatives) return false;
-      preserves_state = true;
-      cantrap = false;
-      break;
-
-    case vmIntrinsics::_getClass      :
-    case vmIntrinsics::_isInstance    :
-      if (!InlineClassNatives) return false;
-      preserves_state = true;
-      break;
-
-    case vmIntrinsics::_currentThread :
-      if (!InlineThreadNatives) return false;
-      preserves_state = true;
-      cantrap = false;
-      break;
-
-    case vmIntrinsics::_dabs          : // fall through
-    case vmIntrinsics::_dsqrt         : // fall through
-    case vmIntrinsics::_dsin          : // fall through
-    case vmIntrinsics::_dcos          : // fall through
-    case vmIntrinsics::_dtan          : // fall through
-    case vmIntrinsics::_dlog          : // fall through
-    case vmIntrinsics::_dlog10        : // fall through
-    case vmIntrinsics::_dexp          : // fall through
-    case vmIntrinsics::_dpow          : // fall through
-      if (!InlineMathNatives) return false;
-      cantrap = false;
-      preserves_state = true;
-      break;
-
-    // Use special nodes for Unsafe instructions so we can more easily
-    // perform an address-mode optimization on the raw variants
-    case vmIntrinsics::_getObject : return append_unsafe_get_obj(callee, T_OBJECT,  false);
-    case vmIntrinsics::_getBoolean: return append_unsafe_get_obj(callee, T_BOOLEAN, false);
-    case vmIntrinsics::_getByte   : return append_unsafe_get_obj(callee, T_BYTE,    false);
-    case vmIntrinsics::_getShort  : return append_unsafe_get_obj(callee, T_SHORT,   false);
-    case vmIntrinsics::_getChar   : return append_unsafe_get_obj(callee, T_CHAR,    false);
-    case vmIntrinsics::_getInt    : return append_unsafe_get_obj(callee, T_INT,     false);
-    case vmIntrinsics::_getLong   : return append_unsafe_get_obj(callee, T_LONG,    false);
-    case vmIntrinsics::_getFloat  : return append_unsafe_get_obj(callee, T_FLOAT,   false);
-    case vmIntrinsics::_getDouble : return append_unsafe_get_obj(callee, T_DOUBLE,  false);
-
-    case vmIntrinsics::_putObject : return append_unsafe_put_obj(callee, T_OBJECT,  false);
-    case vmIntrinsics::_putBoolean: return append_unsafe_put_obj(callee, T_BOOLEAN, false);
-    case vmIntrinsics::_putByte   : return append_unsafe_put_obj(callee, T_BYTE,    false);
-    case vmIntrinsics::_putShort  : return append_unsafe_put_obj(callee, T_SHORT,   false);
-    case vmIntrinsics::_putChar   : return append_unsafe_put_obj(callee, T_CHAR,    false);
-    case vmIntrinsics::_putInt    : return append_unsafe_put_obj(callee, T_INT,     false);
-    case vmIntrinsics::_putLong   : return append_unsafe_put_obj(callee, T_LONG,    false);
-    case vmIntrinsics::_putFloat  : return append_unsafe_put_obj(callee, T_FLOAT,   false);
-    case vmIntrinsics::_putDouble : return append_unsafe_put_obj(callee, T_DOUBLE,  false);
-
-    case vmIntrinsics::_getShortUnaligned  :
-      return UseUnalignedAccesses ? append_unsafe_get_obj(callee, T_SHORT,   false) : false;
-    case vmIntrinsics::_getCharUnaligned   :
-      return UseUnalignedAccesses ? append_unsafe_get_obj(callee, T_CHAR,    false) : false;
-    case vmIntrinsics::_getIntUnaligned    :
-      return UseUnalignedAccesses ? append_unsafe_get_obj(callee, T_INT,     false) : false;
-    case vmIntrinsics::_getLongUnaligned   :
-      return UseUnalignedAccesses ? append_unsafe_get_obj(callee, T_LONG,    false) : false;
-
-    case vmIntrinsics::_putShortUnaligned  :
-      return UseUnalignedAccesses ? append_unsafe_put_obj(callee, T_SHORT,   false) : false;
-    case vmIntrinsics::_putCharUnaligned   :
-      return UseUnalignedAccesses ? append_unsafe_put_obj(callee, T_CHAR,    false) : false;
-    case vmIntrinsics::_putIntUnaligned    :
-      return UseUnalignedAccesses ? append_unsafe_put_obj(callee, T_INT,     false) : false;
-    case vmIntrinsics::_putLongUnaligned   :
-      return UseUnalignedAccesses ? append_unsafe_put_obj(callee, T_LONG,    false) : false;
-
-    case vmIntrinsics::_getObjectVolatile : return append_unsafe_get_obj(callee, T_OBJECT,  true);
-    case vmIntrinsics::_getBooleanVolatile: return append_unsafe_get_obj(callee, T_BOOLEAN, true);
-    case vmIntrinsics::_getByteVolatile   : return append_unsafe_get_obj(callee, T_BYTE,    true);
-    case vmIntrinsics::_getShortVolatile  : return append_unsafe_get_obj(callee, T_SHORT,   true);
-    case vmIntrinsics::_getCharVolatile   : return append_unsafe_get_obj(callee, T_CHAR,    true);
-    case vmIntrinsics::_getIntVolatile    : return append_unsafe_get_obj(callee, T_INT,     true);
-    case vmIntrinsics::_getLongVolatile   : return append_unsafe_get_obj(callee, T_LONG,    true);
-    case vmIntrinsics::_getFloatVolatile  : return append_unsafe_get_obj(callee, T_FLOAT,   true);
-    case vmIntrinsics::_getDoubleVolatile : return append_unsafe_get_obj(callee, T_DOUBLE,  true);
-
-    case vmIntrinsics::_putObjectVolatile : return append_unsafe_put_obj(callee, T_OBJECT,  true);
-    case vmIntrinsics::_putBooleanVolatile: return append_unsafe_put_obj(callee, T_BOOLEAN, true);
-    case vmIntrinsics::_putByteVolatile   : return append_unsafe_put_obj(callee, T_BYTE,    true);
-    case vmIntrinsics::_putShortVolatile  : return append_unsafe_put_obj(callee, T_SHORT,   true);
-    case vmIntrinsics::_putCharVolatile   : return append_unsafe_put_obj(callee, T_CHAR,    true);
-    case vmIntrinsics::_putIntVolatile    : return append_unsafe_put_obj(callee, T_INT,     true);
-    case vmIntrinsics::_putLongVolatile   : return append_unsafe_put_obj(callee, T_LONG,    true);
-    case vmIntrinsics::_putFloatVolatile  : return append_unsafe_put_obj(callee, T_FLOAT,   true);
-    case vmIntrinsics::_putDoubleVolatile : return append_unsafe_put_obj(callee, T_DOUBLE,  true);
-
-    case vmIntrinsics::_getByte_raw   : return append_unsafe_get_raw(callee, T_BYTE);
-    case vmIntrinsics::_getShort_raw  : return append_unsafe_get_raw(callee, T_SHORT);
-    case vmIntrinsics::_getChar_raw   : return append_unsafe_get_raw(callee, T_CHAR);
-    case vmIntrinsics::_getInt_raw    : return append_unsafe_get_raw(callee, T_INT);
-    case vmIntrinsics::_getLong_raw   : return append_unsafe_get_raw(callee, T_LONG);
-    case vmIntrinsics::_getFloat_raw  : return append_unsafe_get_raw(callee, T_FLOAT);
-    case vmIntrinsics::_getDouble_raw : return append_unsafe_get_raw(callee, T_DOUBLE);
-
-    case vmIntrinsics::_putByte_raw   : return append_unsafe_put_raw(callee, T_BYTE);
-    case vmIntrinsics::_putShort_raw  : return append_unsafe_put_raw(callee, T_SHORT);
-    case vmIntrinsics::_putChar_raw   : return append_unsafe_put_raw(callee, T_CHAR);
-    case vmIntrinsics::_putInt_raw    : return append_unsafe_put_raw(callee, T_INT);
-    case vmIntrinsics::_putLong_raw   : return append_unsafe_put_raw(callee, T_LONG);
-    case vmIntrinsics::_putFloat_raw  : return append_unsafe_put_raw(callee, T_FLOAT);
-    case vmIntrinsics::_putDouble_raw : return append_unsafe_put_raw(callee, T_DOUBLE);
-
-    case vmIntrinsics::_checkIndex    :
-      if (!InlineNIOCheckIndex) return false;
-      preserves_state = true;
-      break;
-    case vmIntrinsics::_putOrderedObject : return append_unsafe_put_obj(callee, T_OBJECT,  true);
-    case vmIntrinsics::_putOrderedInt    : return append_unsafe_put_obj(callee, T_INT,     true);
-    case vmIntrinsics::_putOrderedLong   : return append_unsafe_put_obj(callee, T_LONG,    true);
-
-    case vmIntrinsics::_compareAndSwapLong:
-      if (!VM_Version::supports_cx8()) return false;
-      // fall through
-    case vmIntrinsics::_compareAndSwapInt:
-    case vmIntrinsics::_compareAndSwapObject:
-      append_unsafe_CAS(callee);
-      return true;
-
-    case vmIntrinsics::_getAndAddInt:
-      if (!VM_Version::supports_atomic_getadd4()) {
-        return false;
-      }
-      return append_unsafe_get_and_set_obj(callee, true);
-    case vmIntrinsics::_getAndAddLong:
-      if (!VM_Version::supports_atomic_getadd8()) {
-        return false;
-      }
-      return append_unsafe_get_and_set_obj(callee, true);
-    case vmIntrinsics::_getAndSetInt:
-      if (!VM_Version::supports_atomic_getset4()) {
-        return false;
-      }
-      return append_unsafe_get_and_set_obj(callee, false);
-    case vmIntrinsics::_getAndSetLong:
-      if (!VM_Version::supports_atomic_getset8()) {
-        return false;
-      }
-      return append_unsafe_get_and_set_obj(callee, false);
-    case vmIntrinsics::_getAndSetObject:
-#ifdef _LP64
-      if (!UseCompressedOops && !VM_Version::supports_atomic_getset8()) {
-        return false;
-      }
-      if (UseCompressedOops && !VM_Version::supports_atomic_getset4()) {
-        return false;
-      }
-#else
-      if (!VM_Version::supports_atomic_getset4()) {
-        return false;
-      }
-#endif
-      return append_unsafe_get_and_set_obj(callee, false);
-
-    case vmIntrinsics::_Reference_get:
-      // Use the intrinsic version of Reference.get() so that the value in
-      // the referent field can be registered by the G1 pre-barrier code.
-      // Also to prevent commoning reads from this field across safepoint
-      // since GC can change its value.
-      preserves_state = true;
-      break;
-
-    case vmIntrinsics::_updateCRC32:
-    case vmIntrinsics::_updateBytesCRC32:
-    case vmIntrinsics::_updateByteBufferCRC32:
-      if (!UseCRC32Intrinsics) return false;
-      cantrap = false;
-      preserves_state = true;
-      break;
-
-    case vmIntrinsics::_loadFence :
-    case vmIntrinsics::_storeFence:
-    case vmIntrinsics::_fullFence :
-      break;
-
-    default                       : return false; // do not inline
-  }
   // create intrinsic node
   const bool has_receiver = !callee->is_static();
   ValueType* result_type = as_ValueType(callee->return_type());
@@ -3621,8 +3475,10 @@
     }
   }
 
-  Intrinsic* result = new Intrinsic(result_type, id, args, has_receiver, state_before,
-                                    preserves_state, cantrap);
+  Intrinsic* result = new Intrinsic(result_type, callee->intrinsic_id(),
+                                    args, has_receiver, state_before,
+                                    vmIntrinsics::preserves_state(id),
+                                    vmIntrinsics::can_trap(id));
   // append instruction & push result
   Value value = append_split(result);
   if (result_type != voidType) push(result_type, value);
@@ -3630,8 +3486,22 @@
   if (callee != method() && profile_return() && result_type->is_object_kind()) {
     profile_return_type(result, callee);
   }
-
-  // done
+}
+
+bool GraphBuilder::try_inline_intrinsics(ciMethod* callee) {
+  // For calling is_intrinsic_available we need to transition to
+  // the '_thread_in_vm' state because is_intrinsic_available()
+  // does not accesses critical VM-internal data.
+  if (!_compilation->compiler()->is_intrinsic_available(callee->get_Method(), NULL)) {
+    if (!InlineNatives) {
+      // Return false and also set message that the inlining of
+      // intrinsics has been disabled in general.
+      INLINE_BAILOUT("intrinsic method inlining disabled");
+    } else {
+      return false;
+    }
+  }
+  build_graph_for_intrinsic(callee);
   return true;
 }
 
@@ -4224,58 +4094,46 @@
   _scope_data = scope_data()->parent();
 }
 
-bool GraphBuilder::append_unsafe_get_obj(ciMethod* callee, BasicType t, bool is_volatile) {
-  if (InlineUnsafeOps) {
-    Values* args = state()->pop_arguments(callee->arg_size());
-    null_check(args->at(0));
-    Instruction* offset = args->at(2);
+void GraphBuilder::append_unsafe_get_obj(ciMethod* callee, BasicType t, bool is_volatile) {
+  Values* args = state()->pop_arguments(callee->arg_size());
+  null_check(args->at(0));
+  Instruction* offset = args->at(2);
 #ifndef _LP64
-    offset = append(new Convert(Bytecodes::_l2i, offset, as_ValueType(T_INT)));
+  offset = append(new Convert(Bytecodes::_l2i, offset, as_ValueType(T_INT)));
 #endif
-    Instruction* op = append(new UnsafeGetObject(t, args->at(1), offset, is_volatile));
-    push(op->type(), op);
-    compilation()->set_has_unsafe_access(true);
-  }
-  return InlineUnsafeOps;
+  Instruction* op = append(new UnsafeGetObject(t, args->at(1), offset, is_volatile));
+  push(op->type(), op);
+  compilation()->set_has_unsafe_access(true);
 }
 
 
-bool GraphBuilder::append_unsafe_put_obj(ciMethod* callee, BasicType t, bool is_volatile) {
-  if (InlineUnsafeOps) {
-    Values* args = state()->pop_arguments(callee->arg_size());
-    null_check(args->at(0));
-    Instruction* offset = args->at(2);
+void GraphBuilder::append_unsafe_put_obj(ciMethod* callee, BasicType t, bool is_volatile) {
+  Values* args = state()->pop_arguments(callee->arg_size());
+  null_check(args->at(0));
+  Instruction* offset = args->at(2);
 #ifndef _LP64
-    offset = append(new Convert(Bytecodes::_l2i, offset, as_ValueType(T_INT)));
+  offset = append(new Convert(Bytecodes::_l2i, offset, as_ValueType(T_INT)));
 #endif
-    Instruction* op = append(new UnsafePutObject(t, args->at(1), offset, args->at(3), is_volatile));
-    compilation()->set_has_unsafe_access(true);
-    kill_all();
-  }
-  return InlineUnsafeOps;
+  Instruction* op = append(new UnsafePutObject(t, args->at(1), offset, args->at(3), is_volatile));
+  compilation()->set_has_unsafe_access(true);
+  kill_all();
 }
 
 
-bool GraphBuilder::append_unsafe_get_raw(ciMethod* callee, BasicType t) {
-  if (InlineUnsafeOps) {
-    Values* args = state()->pop_arguments(callee->arg_size());
-    null_check(args->at(0));
-    Instruction* op = append(new UnsafeGetRaw(t, args->at(1), false));
-    push(op->type(), op);
-    compilation()->set_has_unsafe_access(true);
-  }
-  return InlineUnsafeOps;
+void GraphBuilder::append_unsafe_get_raw(ciMethod* callee, BasicType t) {
+  Values* args = state()->pop_arguments(callee->arg_size());
+  null_check(args->at(0));
+  Instruction* op = append(new UnsafeGetRaw(t, args->at(1), false));
+  push(op->type(), op);
+  compilation()->set_has_unsafe_access(true);
 }
 
 
-bool GraphBuilder::append_unsafe_put_raw(ciMethod* callee, BasicType t) {
-  if (InlineUnsafeOps) {
-    Values* args = state()->pop_arguments(callee->arg_size());
-    null_check(args->at(0));
-    Instruction* op = append(new UnsafePutRaw(t, args->at(1), args->at(2)));
-    compilation()->set_has_unsafe_access(true);
-  }
-  return InlineUnsafeOps;
+void GraphBuilder::append_unsafe_put_raw(ciMethod* callee, BasicType t) {
+  Values* args = state()->pop_arguments(callee->arg_size());
+  null_check(args->at(0));
+  Instruction* op = append(new UnsafePutRaw(t, args->at(1), args->at(2)));
+  compilation()->set_has_unsafe_access(true);
 }
 
 
@@ -4352,21 +4210,18 @@
   }
 }
 
-bool GraphBuilder::append_unsafe_get_and_set_obj(ciMethod* callee, bool is_add) {
-  if (InlineUnsafeOps) {
-    Values* args = state()->pop_arguments(callee->arg_size());
-    BasicType t = callee->return_type()->basic_type();
-    null_check(args->at(0));
-    Instruction* offset = args->at(2);
+void GraphBuilder::append_unsafe_get_and_set_obj(ciMethod* callee, bool is_add) {
+  Values* args = state()->pop_arguments(callee->arg_size());
+  BasicType t = callee->return_type()->basic_type();
+  null_check(args->at(0));
+  Instruction* offset = args->at(2);
 #ifndef _LP64
-    offset = append(new Convert(Bytecodes::_l2i, offset, as_ValueType(T_INT)));
+  offset = append(new Convert(Bytecodes::_l2i, offset, as_ValueType(T_INT)));
 #endif
-    Instruction* op = append(new UnsafeGetAndSetObject(t, args->at(1), offset, args->at(3), is_add));
-    compilation()->set_has_unsafe_access(true);
-    kill_all();
-    push(op->type(), op);
-  }
-  return InlineUnsafeOps;
+  Instruction* op = append(new UnsafeGetAndSetObject(t, args->at(1), offset, args->at(3), is_add));
+  compilation()->set_has_unsafe_access(true);
+  kill_all();
+  push(op->type(), op);
 }
 
 #ifndef PRODUCT
--- a/src/share/vm/c1/c1_GraphBuilder.hpp	Tue Jul 21 13:36:28 2015 +0000
+++ b/src/share/vm/c1/c1_GraphBuilder.hpp	Tue Jul 28 19:20:42 2015 +0200
@@ -339,6 +339,8 @@
   void inline_sync_entry(Value lock, BlockBegin* sync_handler);
   void fill_sync_handler(Value lock, BlockBegin* sync_handler, bool default_handler = false);
 
+  void build_graph_for_intrinsic(ciMethod* callee);
+
   // inliners
   bool try_inline(           ciMethod* callee, bool holder_known, Bytecodes::Code bc = Bytecodes::_illegal, Value receiver = NULL);
   bool try_inline_intrinsics(ciMethod* callee);
@@ -364,12 +366,12 @@
   void pop_scope();
   void pop_scope_for_jsr();
 
-  bool append_unsafe_get_obj(ciMethod* callee, BasicType t, bool is_volatile);
-  bool append_unsafe_put_obj(ciMethod* callee, BasicType t, bool is_volatile);
-  bool append_unsafe_get_raw(ciMethod* callee, BasicType t);
-  bool append_unsafe_put_raw(ciMethod* callee, BasicType t);
+  void append_unsafe_get_obj(ciMethod* callee, BasicType t, bool is_volatile);
+  void append_unsafe_put_obj(ciMethod* callee, BasicType t, bool is_volatile);
+  void append_unsafe_get_raw(ciMethod* callee, BasicType t);
+  void append_unsafe_put_raw(ciMethod* callee, BasicType t);
   void append_unsafe_CAS(ciMethod* callee);
-  bool append_unsafe_get_and_set_obj(ciMethod* callee, bool is_add);
+  void append_unsafe_get_and_set_obj(ciMethod* callee, bool is_add);
 
   void print_inlining(ciMethod* callee, const char* msg = NULL, bool success = true);
 
--- a/src/share/vm/classfile/vmSymbols.cpp	Tue Jul 21 13:36:28 2015 +0000
+++ b/src/share/vm/classfile/vmSymbols.cpp	Tue Jul 28 19:20:42 2015 +0200
@@ -324,6 +324,319 @@
   return vmIntrinsics::_none;
 }
 
+bool vmIntrinsics::preserves_state(vmIntrinsics::ID id) {
+  assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+  switch(id) {
+#ifdef TRACE_HAVE_INTRINSICS
+  case vmIntrinsics::_classID:
+  case vmIntrinsics::_threadID:
+  case vmIntrinsics::_counterTime:
+#endif
+  case vmIntrinsics::_currentTimeMillis:
+  case vmIntrinsics::_nanoTime:
+  case vmIntrinsics::_floatToRawIntBits:
+  case vmIntrinsics::_intBitsToFloat:
+  case vmIntrinsics::_doubleToRawLongBits:
+  case vmIntrinsics::_longBitsToDouble:
+  case vmIntrinsics::_getClass:
+  case vmIntrinsics::_isInstance:
+  case vmIntrinsics::_currentThread:
+  case vmIntrinsics::_dabs:
+  case vmIntrinsics::_dsqrt:
+  case vmIntrinsics::_dsin:
+  case vmIntrinsics::_dcos:
+  case vmIntrinsics::_dtan:
+  case vmIntrinsics::_dlog:
+  case vmIntrinsics::_dlog10:
+  case vmIntrinsics::_dexp:
+  case vmIntrinsics::_dpow:
+  case vmIntrinsics::_checkIndex:
+  case vmIntrinsics::_Reference_get:
+  case vmIntrinsics::_updateCRC32:
+  case vmIntrinsics::_updateBytesCRC32:
+  case vmIntrinsics::_updateByteBufferCRC32:
+    return true;
+  default:
+    return false;
+  }
+}
+
+bool vmIntrinsics::can_trap(vmIntrinsics::ID id) {
+  assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+  switch(id) {
+#ifdef TRACE_HAVE_INTRINSICS
+  case vmIntrinsics::_counterTime:
+#endif
+  case vmIntrinsics::_currentTimeMillis:
+  case vmIntrinsics::_nanoTime:
+  case vmIntrinsics::_floatToRawIntBits:
+  case vmIntrinsics::_intBitsToFloat:
+  case vmIntrinsics::_doubleToRawLongBits:
+  case vmIntrinsics::_longBitsToDouble:
+  case vmIntrinsics::_currentThread:
+  case vmIntrinsics::_dabs:
+  case vmIntrinsics::_dsqrt:
+  case vmIntrinsics::_dsin:
+  case vmIntrinsics::_dcos:
+  case vmIntrinsics::_dtan:
+  case vmIntrinsics::_dlog:
+  case vmIntrinsics::_dlog10:
+  case vmIntrinsics::_dexp:
+  case vmIntrinsics::_dpow:
+  case vmIntrinsics::_updateCRC32:
+  case vmIntrinsics::_updateBytesCRC32:
+  case vmIntrinsics::_updateByteBufferCRC32:
+    return false;
+  default:
+    return true;
+  }
+}
+
+bool vmIntrinsics::does_virtual_dispatch(vmIntrinsics::ID id) {
+  assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+  switch(id) {
+  case vmIntrinsics::_hashCode:
+  case vmIntrinsics::_clone:
+    return true;
+    break;
+  default:
+    return false;
+  }
+}
+
+int vmIntrinsics::predicates_needed(vmIntrinsics::ID id) {
+  assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+  switch (id) {
+  case vmIntrinsics::_cipherBlockChaining_encryptAESCrypt:
+  case vmIntrinsics::_cipherBlockChaining_decryptAESCrypt:
+    return 1;
+  case vmIntrinsics::_digestBase_implCompressMB:
+    return 3;
+  default:
+    return 0;
+  }
+}
+
+bool vmIntrinsics::is_disabled_by_flags(vmIntrinsics::ID id) {
+  assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+  switch (id) {
+  case vmIntrinsics::_isInstance:
+  case vmIntrinsics::_isAssignableFrom:
+  case vmIntrinsics::_getModifiers:
+  case vmIntrinsics::_isInterface:
+  case vmIntrinsics::_isArray:
+  case vmIntrinsics::_isPrimitive:
+  case vmIntrinsics::_getSuperclass:
+  case vmIntrinsics::_Class_cast:
+  case vmIntrinsics::_getLength:
+  case vmIntrinsics::_newArray:
+    if (!InlineClassNatives) return true;
+    break;
+  case vmIntrinsics::_currentThread:
+  case vmIntrinsics::_isInterrupted:
+    if (!InlineThreadNatives) return true;
+    break;
+  case vmIntrinsics::_floatToRawIntBits:
+  case vmIntrinsics::_intBitsToFloat:
+  case vmIntrinsics::_doubleToRawLongBits:
+  case vmIntrinsics::_longBitsToDouble:
+  case vmIntrinsics::_dabs:
+  case vmIntrinsics::_dsqrt:
+  case vmIntrinsics::_dsin:
+  case vmIntrinsics::_dcos:
+  case vmIntrinsics::_dtan:
+  case vmIntrinsics::_dlog:
+  case vmIntrinsics::_dexp:
+  case vmIntrinsics::_dpow:
+  case vmIntrinsics::_dlog10:
+  case vmIntrinsics::_datan2:
+  case vmIntrinsics::_min:
+  case vmIntrinsics::_max:
+  case vmIntrinsics::_floatToIntBits:
+  case vmIntrinsics::_doubleToLongBits:
+    if (!InlineMathNatives) return true;
+    break;
+  case vmIntrinsics::_arraycopy:
+    if (!InlineArrayCopy) return true;
+    break;
+  case vmIntrinsics::_updateCRC32:
+  case vmIntrinsics::_updateBytesCRC32:
+  case vmIntrinsics::_updateByteBufferCRC32:
+    if (!UseCRC32Intrinsics) return true;
+    break;
+  case vmIntrinsics::_getObject:
+  case vmIntrinsics::_getBoolean:
+  case vmIntrinsics::_getByte:
+  case vmIntrinsics::_getShort:
+  case vmIntrinsics::_getChar:
+  case vmIntrinsics::_getInt:
+  case vmIntrinsics::_getLong:
+  case vmIntrinsics::_getFloat:
+  case vmIntrinsics::_getDouble:
+  case vmIntrinsics::_putObject:
+  case vmIntrinsics::_putBoolean:
+  case vmIntrinsics::_putByte:
+  case vmIntrinsics::_putShort:
+  case vmIntrinsics::_putChar:
+  case vmIntrinsics::_putInt:
+  case vmIntrinsics::_putLong:
+  case vmIntrinsics::_putFloat:
+  case vmIntrinsics::_putDouble:
+  case vmIntrinsics::_getObjectVolatile:
+  case vmIntrinsics::_getBooleanVolatile:
+  case vmIntrinsics::_getByteVolatile:
+  case vmIntrinsics::_getShortVolatile:
+  case vmIntrinsics::_getCharVolatile:
+  case vmIntrinsics::_getIntVolatile:
+  case vmIntrinsics::_getLongVolatile:
+  case vmIntrinsics::_getFloatVolatile:
+  case vmIntrinsics::_getDoubleVolatile:
+  case vmIntrinsics::_putObjectVolatile:
+  case vmIntrinsics::_putBooleanVolatile:
+  case vmIntrinsics::_putByteVolatile:
+  case vmIntrinsics::_putShortVolatile:
+  case vmIntrinsics::_putCharVolatile:
+  case vmIntrinsics::_putIntVolatile:
+  case vmIntrinsics::_putLongVolatile:
+  case vmIntrinsics::_putFloatVolatile:
+  case vmIntrinsics::_putDoubleVolatile:
+  case vmIntrinsics::_getByte_raw:
+  case vmIntrinsics::_getShort_raw:
+  case vmIntrinsics::_getChar_raw:
+  case vmIntrinsics::_getInt_raw:
+  case vmIntrinsics::_getLong_raw:
+  case vmIntrinsics::_getFloat_raw:
+  case vmIntrinsics::_getDouble_raw:
+  case vmIntrinsics::_putByte_raw:
+  case vmIntrinsics::_putShort_raw:
+  case vmIntrinsics::_putChar_raw:
+  case vmIntrinsics::_putInt_raw:
+  case vmIntrinsics::_putLong_raw:
+  case vmIntrinsics::_putFloat_raw:
+  case vmIntrinsics::_putDouble_raw:
+  case vmIntrinsics::_putOrderedObject:
+  case vmIntrinsics::_putOrderedLong:
+  case vmIntrinsics::_putOrderedInt:
+  case vmIntrinsics::_getAndAddInt:
+  case vmIntrinsics::_getAndAddLong:
+  case vmIntrinsics::_getAndSetInt:
+  case vmIntrinsics::_getAndSetLong:
+  case vmIntrinsics::_getAndSetObject:
+    if (!InlineUnsafeOps) return true;
+    break;
+  case vmIntrinsics::_getShortUnaligned:
+  case vmIntrinsics::_getCharUnaligned:
+  case vmIntrinsics::_getIntUnaligned:
+  case vmIntrinsics::_getLongUnaligned:
+  case vmIntrinsics::_putShortUnaligned:
+  case vmIntrinsics::_putCharUnaligned:
+  case vmIntrinsics::_putIntUnaligned:
+  case vmIntrinsics::_putLongUnaligned:
+  case vmIntrinsics::_allocateInstance:
+  case vmIntrinsics::_getAddress_raw:
+  case vmIntrinsics::_putAddress_raw:
+    if (!InlineUnsafeOps || !UseUnalignedAccesses) return true;
+    break;
+  case vmIntrinsics::_hashCode:
+    if (!InlineObjectHash) return true;
+    break;
+  case vmIntrinsics::_aescrypt_encryptBlock:
+  case vmIntrinsics::_aescrypt_decryptBlock:
+    if (!UseAESIntrinsics) return true;
+    break;
+  case vmIntrinsics::_cipherBlockChaining_encryptAESCrypt:
+  case vmIntrinsics::_cipherBlockChaining_decryptAESCrypt:
+    if (!UseAESIntrinsics) return true;
+    break;
+  case vmIntrinsics::_sha_implCompress:
+    if (!UseSHA1Intrinsics) return true;
+    break;
+  case vmIntrinsics::_sha2_implCompress:
+    if (!UseSHA256Intrinsics) return true;
+    break;
+  case vmIntrinsics::_sha5_implCompress:
+    if (!UseSHA512Intrinsics) return true;
+    break;
+  case vmIntrinsics::_digestBase_implCompressMB:
+    if (!(UseSHA1Intrinsics || UseSHA256Intrinsics || UseSHA512Intrinsics)) return true;
+    break;
+  case vmIntrinsics::_ghash_processBlocks:
+    if (!UseGHASHIntrinsics) return true;
+    break;
+  case vmIntrinsics::_updateBytesCRC32C:
+  case vmIntrinsics::_updateDirectByteBufferCRC32C:
+    if (!UseCRC32CIntrinsics) return true;
+    break;
+  case vmIntrinsics::_copyMemory:
+    if (!InlineArrayCopy || !InlineUnsafeOps) return true;
+    break;
+#ifdef COMPILER1
+  case vmIntrinsics::_checkIndex:
+    if (!InlineNIOCheckIndex) return true;
+    break;
+#endif // COMPILER1
+#ifdef COMPILER2
+  case vmIntrinsics::_clone:
+  case vmIntrinsics::_copyOf:
+  case vmIntrinsics::_copyOfRange:
+    // These intrinsics use both the objectcopy and the arraycopy
+    // intrinsic mechanism.
+    if (!InlineObjectCopy || !InlineArrayCopy) return true;
+    break;
+  case vmIntrinsics::_compareTo:
+     if (!SpecialStringCompareTo) return true;
+     break;
+  case vmIntrinsics::_indexOf:
+    if (!SpecialStringIndexOf) return true;
+    break;
+  case vmIntrinsics::_equals:
+    if (!SpecialStringEquals) return true;
+    break;
+  case vmIntrinsics::_equalsC:
+    if (!SpecialArraysEquals) return true;
+    break;
+  case vmIntrinsics::_encodeISOArray:
+    if (!SpecialEncodeISOArray) return true;
+    break;
+  case vmIntrinsics::_getCallerClass:
+    if (!InlineReflectionGetCallerClass) return true;
+    break;
+  case vmIntrinsics::_multiplyToLen:
+      if (!UseMultiplyToLenIntrinsic) return true;
+      break;
+  case vmIntrinsics::_squareToLen:
+    if (!UseSquareToLenIntrinsic) return true;
+    break;
+  case vmIntrinsics::_mulAdd:
+    if (!UseMulAddIntrinsic) return true;
+    break;
+  case vmIntrinsics::_montgomeryMultiply:
+    if (!UseMontgomeryMultiplyIntrinsic) return true;
+    break;
+  case vmIntrinsics::_montgomerySquare:
+    if (!UseMontgomerySquareIntrinsic) return true;
+    break;
+  case vmIntrinsics::_addExactI:
+  case vmIntrinsics::_addExactL:
+  case vmIntrinsics::_decrementExactI:
+  case vmIntrinsics::_decrementExactL:
+  case vmIntrinsics::_incrementExactI:
+  case vmIntrinsics::_incrementExactL:
+  case vmIntrinsics::_multiplyExactI:
+  case vmIntrinsics::_multiplyExactL:
+  case vmIntrinsics::_negateExactI:
+  case vmIntrinsics::_negateExactL:
+  case vmIntrinsics::_subtractExactI:
+  case vmIntrinsics::_subtractExactL:
+    if (!UseMathExactIntrinsics || !InlineMathNatives) return true;
+    break;
+#endif // COMPILER2
+  default:
+    return false;
+  }
+
+  return false;
+}
 
 #define VM_INTRINSIC_INITIALIZE(id, klass, name, sig, flags) #id "\0"
 static const char* vm_intrinsic_name_bodies =
--- a/src/share/vm/classfile/vmSymbols.hpp	Tue Jul 21 13:36:28 2015 +0000
+++ b/src/share/vm/classfile/vmSymbols.hpp	Tue Jul 28 19:20:42 2015 +0200
@@ -1368,6 +1368,26 @@
 
   // Raw conversion:
   static ID for_raw_conversion(BasicType src, BasicType dest);
+
+  // The methods below provide information related to compiling intrinsics.
+
+  // (1) Information needed by the C1 compiler.
+
+  static bool preserves_state(vmIntrinsics::ID id);
+  static bool can_trap(vmIntrinsics::ID id);
+
+  // (2) Information needed by the C2 compiler.
+
+  // Returns true if the intrinsic for method 'method' will perform a virtual dispatch.
+  static bool does_virtual_dispatch(vmIntrinsics::ID id);
+  // A return value larger than 0 indicates that the intrinsic for method
+  // 'method' requires predicated logic.
+  static int predicates_needed(vmIntrinsics::ID id);
+
+  // Returns true if an intrinsic is disabled by command-line flags and
+  // false otherwise. Implements functionality common to the C1
+  // and the C2 compiler.
+  static bool is_disabled_by_flags(vmIntrinsics::ID id);
 };
 
 #endif // SHARE_VM_CLASSFILE_VMSYMBOLS_HPP
--- a/src/share/vm/compiler/abstractCompiler.hpp	Tue Jul 21 13:36:28 2015 +0000
+++ b/src/share/vm/compiler/abstractCompiler.hpp	Tue Jul 28 19:20:42 2015 +0200
@@ -66,6 +66,58 @@
   virtual bool supports_osr   ()                 { return true; }
   virtual bool can_compile_method(methodHandle method)  { return true; }
 
+  // Determine if the current compiler provides an intrinsic
+  // for method 'method'. An intrinsic is available if:
+  //  - the intrinsic is enabled (by using the appropriate command-line flag) and
+  //  - the platform on which the VM is running supports the intrinsic
+  //    (i.e., the platform provides the instructions necessary for the compiler
+  //    to generate the intrinsic code).
+  //
+  // The second parameter, 'compilation_context', is needed to implement functionality
+  // related to the DisableIntrinsic command-line flag. The DisableIntrinsic flag can
+  // be used to prohibit the C2 compiler (but not the C1 compiler) to use an intrinsic.
+  // There are three ways to disable an intrinsic using the DisableIntrinsic flag:
+  //
+  // (1) -XX:DisableIntrinsic=_hashCode,_getClass
+  //     Disables intrinsification of _hashCode and _getClass globally
+  //     (i.e., the intrinsified version the methods will not be used at all).
+  // (2) -XX:CompileCommand=option,aClass::aMethod,ccstr,DisableIntrinsic,_hashCode
+  //     Disables intrinsification of _hashCode if it is called from
+  //     aClass::aMethod (but not for any other call site of _hashCode)
+  // (3) -XX:CompileCommand=option,java.lang.ref.Reference::get,ccstr,DisableIntrinsic,_Reference_get
+  //     Some methods are not compiled by C2. Instead, the C2 compiler
+  //     returns directly the intrinsified version of these methods.
+  //     The command above forces C2 to compile _Reference_get, but
+  //     allows using the intrinsified version of _Reference_get at all
+  //     other call sites.
+  //
+  // From the modes above, (1) disable intrinsics globally, (2) and (3)
+  // disable intrinsics on a per-method basis. In cases (2) and (3) the
+  // compilation context is aClass::aMethod and java.lang.ref.Reference::get,
+  // respectively.
+  virtual bool is_intrinsic_available(methodHandle method, methodHandle compilation_context) {
+    return false;
+  }
+
+  // Determines if an intrinsic is supported by the compiler, that is,
+  // the compiler provides the instructions necessary to generate
+  // the intrinsic code for method 'method'.
+  //
+  // The 'is_intrinsic_supported' method is a white list, that is,
+  // by default no intrinsics are supported by a compiler except
+  // the ones listed in the method. Overriding methods should conform
+  // to this behavior.
+  virtual bool is_intrinsic_supported(methodHandle method) {
+    return false;
+  }
+
+  // Implements compiler-specific processing of command-line flags.
+  // Processing of command-line flags common to all compilers is implemented
+  // in vmIntrinsicss::is_disabled_by_flag.
+  virtual bool is_intrinsic_disabled_by_flag(methodHandle method) {
+    return false;
+  }
+
   // Compiler type queries.
   bool is_c1()                                   { return _type == c1; }
   bool is_c2()                                   { return _type == c2; }
--- a/src/share/vm/opto/c2compiler.cpp	Tue Jul 21 13:36:28 2015 +0000
+++ b/src/share/vm/opto/c2compiler.cpp	Tue Jul 28 19:20:42 2015 +0200
@@ -79,7 +79,6 @@
   return OptoRuntime::generate(thread->env());
 }
 
-
 void C2Compiler::initialize() {
   // The first compiler thread that gets here will initialize the
   // small amount of global state (and runtime stubs) that C2 needs.
@@ -154,11 +153,361 @@
   }
 }
 
-
 void C2Compiler::print_timers() {
   Compile::print_timers();
 }
 
+bool C2Compiler::is_intrinsic_available(methodHandle method, methodHandle compilation_context) {
+  // Assume a non-virtual dispatch. A virtual dispatch is
+  // possible for only a limited set of available intrinsics whereas
+  // a non-virtual dispatch is possible for all available intrinsics.
+  return is_intrinsic_supported(method, false) &&
+         !is_intrinsic_disabled_by_flag(method, compilation_context);
+}
+
+bool C2Compiler::is_intrinsic_supported(methodHandle method, bool is_virtual) {
+  vmIntrinsics::ID id = method->intrinsic_id();
+  assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+
+  if (id < vmIntrinsics::FIRST_ID || id >= vmIntrinsics::LAST_COMPILER_INLINE) {
+    return false;
+  }
+
+  // Only Object.hashCode and Object.clone intrinsics implement also a virtual
+  // dispatch because calling both methods is expensive but both methods are
+  // frequently overridden. All other intrinsics implement only a non-virtual
+  // dispatch.
+  if (is_virtual) {
+    switch (id) {
+    case vmIntrinsics::_hashCode:
+    case vmIntrinsics::_clone:
+      break;
+    default:
+      return false;
+    }
+  }
+
+  switch (id) {
+  case vmIntrinsics::_compareTo:
+    if (!Matcher::match_rule_supported(Op_StrComp)) return false;
+    break;
+  case vmIntrinsics::_equals:
+    if (!Matcher::match_rule_supported(Op_StrEquals)) return false;
+    break;
+  case vmIntrinsics::_equalsC:
+    if (!Matcher::match_rule_supported(Op_AryEq)) return false;
+    break;
+  case vmIntrinsics::_copyMemory:
+    if (StubRoutines::unsafe_arraycopy() == NULL) return false;
+    break;
+  case vmIntrinsics::_encodeISOArray:
+    if (!Matcher::match_rule_supported(Op_EncodeISOArray)) return false;
+    break;
+  case vmIntrinsics::_bitCount_i:
+    if (!Matcher::match_rule_supported(Op_PopCountI)) return false;
+    break;
+  case vmIntrinsics::_bitCount_l:
+    if (!Matcher::match_rule_supported(Op_PopCountL)) return false;
+    break;
+  case vmIntrinsics::_numberOfLeadingZeros_i:
+    if (!Matcher::match_rule_supported(Op_CountLeadingZerosI)) return false;
+    break;
+  case vmIntrinsics::_numberOfLeadingZeros_l:
+    if (!Matcher::match_rule_supported(Op_CountLeadingZerosL)) return false;
+    break;
+  case vmIntrinsics::_numberOfTrailingZeros_i:
+    if (!Matcher::match_rule_supported(Op_CountTrailingZerosI)) return false;
+    break;
+  case vmIntrinsics::_numberOfTrailingZeros_l:
+    if (!Matcher::match_rule_supported(Op_CountTrailingZerosL)) return false;
+    break;
+  case vmIntrinsics::_reverseBytes_c:
+    if (!Matcher::match_rule_supported(Op_ReverseBytesUS)) return false;
+    break;
+  case vmIntrinsics::_reverseBytes_s:
+    if (!Matcher::match_rule_supported(Op_ReverseBytesS)) return false;
+    break;
+  case vmIntrinsics::_reverseBytes_i:
+    if (!Matcher::match_rule_supported(Op_ReverseBytesI)) return false;
+    break;
+  case vmIntrinsics::_reverseBytes_l:
+    if (!Matcher::match_rule_supported(Op_ReverseBytesL)) return false;
+    break;
+  case vmIntrinsics::_compareAndSwapObject:
+#ifdef _LP64
+    if (!UseCompressedOops && !Matcher::match_rule_supported(Op_CompareAndSwapP)) return false;
+#endif
+    break;
+  case vmIntrinsics::_compareAndSwapLong:
+    if (!Matcher::match_rule_supported(Op_CompareAndSwapL)) return false;
+    break;
+  case vmIntrinsics::_getAndAddInt:
+    if (!Matcher::match_rule_supported(Op_GetAndAddI)) return false;
+    break;
+  case vmIntrinsics::_getAndAddLong:
+    if (!Matcher::match_rule_supported(Op_GetAndAddL)) return false;
+    break;
+  case vmIntrinsics::_getAndSetInt:
+    if (!Matcher::match_rule_supported(Op_GetAndSetI)) return false;
+    break;
+  case vmIntrinsics::_getAndSetLong:
+    if (!Matcher::match_rule_supported(Op_GetAndSetL)) return false;
+    break;
+  case vmIntrinsics::_getAndSetObject:
+#ifdef _LP64
+    if (!UseCompressedOops && !Matcher::match_rule_supported(Op_GetAndSetP)) return false;
+    if (UseCompressedOops && !Matcher::match_rule_supported(Op_GetAndSetN)) return false;
+    break;
+#else
+    if (!Matcher::match_rule_supported(Op_GetAndSetP)) return false;
+    break;
+#endif
+  case vmIntrinsics::_incrementExactI:
+  case vmIntrinsics::_addExactI:
+    if (!Matcher::match_rule_supported(Op_OverflowAddI)) return false;
+    break;
+  case vmIntrinsics::_incrementExactL:
+  case vmIntrinsics::_addExactL:
+    if (!Matcher::match_rule_supported(Op_OverflowAddL)) return false;
+    break;
+  case vmIntrinsics::_decrementExactI:
+  case vmIntrinsics::_subtractExactI:
+    if (!Matcher::match_rule_supported(Op_OverflowSubI)) return false;
+    break;
+  case vmIntrinsics::_decrementExactL:
+  case vmIntrinsics::_subtractExactL:
+    if (!Matcher::match_rule_supported(Op_OverflowSubL)) return false;
+    break;
+  case vmIntrinsics::_negateExactI:
+    if (!Matcher::match_rule_supported(Op_OverflowSubI)) return false;
+    break;
+  case vmIntrinsics::_negateExactL:
+    if (!Matcher::match_rule_supported(Op_OverflowSubL)) return false;
+    break;
+  case vmIntrinsics::_multiplyExactI:
+    if (!Matcher::match_rule_supported(Op_OverflowMulI)) return false;
+    break;
+  case vmIntrinsics::_multiplyExactL:
+    if (!Matcher::match_rule_supported(Op_OverflowMulL)) return false;
+    break;
+  case vmIntrinsics::_getCallerClass:
+    if (SystemDictionary::reflect_CallerSensitive_klass() == NULL) return false;
+    break;
+  case vmIntrinsics::_hashCode:
+  case vmIntrinsics::_identityHashCode:
+  case vmIntrinsics::_getClass:
+  case vmIntrinsics::_dsin:
+  case vmIntrinsics::_dcos:
+  case vmIntrinsics::_dtan:
+  case vmIntrinsics::_dabs:
+  case vmIntrinsics::_datan2:
+  case vmIntrinsics::_dsqrt:
+  case vmIntrinsics::_dexp:
+  case vmIntrinsics::_dlog:
+  case vmIntrinsics::_dlog10:
+  case vmIntrinsics::_dpow:
+  case vmIntrinsics::_min:
+  case vmIntrinsics::_max:
+  case vmIntrinsics::_arraycopy:
+  case vmIntrinsics::_indexOf:
+  case vmIntrinsics::_getObject:
+  case vmIntrinsics::_getBoolean:
+  case vmIntrinsics::_getByte:
+  case vmIntrinsics::_getShort:
+  case vmIntrinsics::_getChar:
+  case vmIntrinsics::_getInt:
+  case vmIntrinsics::_getLong:
+  case vmIntrinsics::_getFloat:
+  case vmIntrinsics::_getDouble:
+  case vmIntrinsics::_putObject:
+  case vmIntrinsics::_putBoolean:
+  case vmIntrinsics::_putByte:
+  case vmIntrinsics::_putShort:
+  case vmIntrinsics::_putChar:
+  case vmIntrinsics::_putInt:
+  case vmIntrinsics::_putLong:
+  case vmIntrinsics::_putFloat:
+  case vmIntrinsics::_putDouble:
+  case vmIntrinsics::_getByte_raw:
+  case vmIntrinsics::_getShort_raw:
+  case vmIntrinsics::_getChar_raw:
+  case vmIntrinsics::_getInt_raw:
+  case vmIntrinsics::_getLong_raw:
+  case vmIntrinsics::_getFloat_raw:
+  case vmIntrinsics::_getDouble_raw:
+  case vmIntrinsics::_getAddress_raw:
+  case vmIntrinsics::_putByte_raw:
+  case vmIntrinsics::_putShort_raw:
+  case vmIntrinsics::_putChar_raw:
+  case vmIntrinsics::_putInt_raw:
+  case vmIntrinsics::_putLong_raw:
+  case vmIntrinsics::_putFloat_raw:
+  case vmIntrinsics::_putDouble_raw:
+  case vmIntrinsics::_putAddress_raw:
+  case vmIntrinsics::_getObjectVolatile:
+  case vmIntrinsics::_getBooleanVolatile:
+  case vmIntrinsics::_getByteVolatile:
+  case vmIntrinsics::_getShortVolatile:
+  case vmIntrinsics::_getCharVolatile:
+  case vmIntrinsics::_getIntVolatile:
+  case vmIntrinsics::_getLongVolatile:
+  case vmIntrinsics::_getFloatVolatile:
+  case vmIntrinsics::_getDoubleVolatile:
+  case vmIntrinsics::_putObjectVolatile:
+  case vmIntrinsics::_putBooleanVolatile:
+  case vmIntrinsics::_putByteVolatile:
+  case vmIntrinsics::_putShortVolatile:
+  case vmIntrinsics::_putCharVolatile:
+  case vmIntrinsics::_putIntVolatile:
+  case vmIntrinsics::_putLongVolatile:
+  case vmIntrinsics::_putFloatVolatile:
+  case vmIntrinsics::_putDoubleVolatile:
+  case vmIntrinsics::_getShortUnaligned:
+  case vmIntrinsics::_getCharUnaligned:
+  case vmIntrinsics::_getIntUnaligned:
+  case vmIntrinsics::_getLongUnaligned:
+  case vmIntrinsics::_putShortUnaligned:
+  case vmIntrinsics::_putCharUnaligned:
+  case vmIntrinsics::_putIntUnaligned:
+  case vmIntrinsics::_putLongUnaligned:
+  case vmIntrinsics::_compareAndSwapInt:
+  case vmIntrinsics::_putOrderedObject:
+  case vmIntrinsics::_putOrderedInt:
+  case vmIntrinsics::_putOrderedLong:
+  case vmIntrinsics::_loadFence:
+  case vmIntrinsics::_storeFence:
+  case vmIntrinsics::_fullFence:
+  case vmIntrinsics::_currentThread:
+  case vmIntrinsics::_isInterrupted:
+#ifdef TRACE_HAVE_INTRINSICS
+  case vmIntrinsics::_classID:
+  case vmIntrinsics::_threadID:
+  case vmIntrinsics::_counterTime:
+#endif
+  case vmIntrinsics::_currentTimeMillis:
+  case vmIntrinsics::_nanoTime:
+  case vmIntrinsics::_allocateInstance:
+  case vmIntrinsics::_newArray:
+  case vmIntrinsics::_getLength:
+  case vmIntrinsics::_copyOf:
+  case vmIntrinsics::_copyOfRange:
+  case vmIntrinsics::_clone:
+  case vmIntrinsics::_isAssignableFrom:
+  case vmIntrinsics::_isInstance:
+  case vmIntrinsics::_getModifiers:
+  case vmIntrinsics::_isInterface:
+  case vmIntrinsics::_isArray:
+  case vmIntrinsics::_isPrimitive:
+  case vmIntrinsics::_getSuperclass:
+  case vmIntrinsics::_getClassAccessFlags:
+  case vmIntrinsics::_floatToRawIntBits:
+  case vmIntrinsics::_floatToIntBits:
+  case vmIntrinsics::_intBitsToFloat:
+  case vmIntrinsics::_doubleToRawLongBits:
+  case vmIntrinsics::_doubleToLongBits:
+  case vmIntrinsics::_longBitsToDouble:
+  case vmIntrinsics::_Reference_get:
+  case vmIntrinsics::_Class_cast:
+  case vmIntrinsics::_aescrypt_encryptBlock:
+  case vmIntrinsics::_aescrypt_decryptBlock:
+  case vmIntrinsics::_cipherBlockChaining_encryptAESCrypt:
+  case vmIntrinsics::_cipherBlockChaining_decryptAESCrypt:
+  case vmIntrinsics::_sha_implCompress:
+  case vmIntrinsics::_sha2_implCompress:
+  case vmIntrinsics::_sha5_implCompress:
+  case vmIntrinsics::_digestBase_implCompressMB:
+  case vmIntrinsics::_multiplyToLen:
+  case vmIntrinsics::_squareToLen:
+  case vmIntrinsics::_mulAdd:
+  case vmIntrinsics::_montgomeryMultiply:
+  case vmIntrinsics::_montgomerySquare:
+  case vmIntrinsics::_ghash_processBlocks:
+  case vmIntrinsics::_updateCRC32:
+  case vmIntrinsics::_updateBytesCRC32:
+  case vmIntrinsics::_updateByteBufferCRC32:
+  case vmIntrinsics::_updateBytesCRC32C:
+  case vmIntrinsics::_updateDirectByteBufferCRC32C:
+  case vmIntrinsics::_profileBoolean:
+  case vmIntrinsics::_isCompileConstant:
+    break;
+  default:
+    return false;
+  }
+  return true;
+}
+
+bool C2Compiler::is_intrinsic_disabled_by_flag(methodHandle method, methodHandle compilation_context) {
+  vmIntrinsics::ID id = method->intrinsic_id();
+  assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+
+  if (vmIntrinsics::is_disabled_by_flags(method->intrinsic_id())) {
+    return true;
+  }
+
+  // Check if the intrinsic corresponding to 'method' has been disabled on
+  // the command line by using the DisableIntrinsic flag (either globally
+  // or on a per-method level, see src/share/vm/compiler/abstractCompiler.hpp
+  // for details).
+  // Usually, the compilation context is the caller of the method 'method'.
+  // The only case when for a non-recursive method 'method' the compilation context
+  // is not the caller of the 'method' (but it is the method itself) is
+  // java.lang.ref.Referene::get.
+  // For java.lang.ref.Reference::get, the intrinsic version is used
+  // instead of the C2-compiled version so that the value in the referent
+  // field can be registered by the G1 pre-barrier code. The intrinsified
+  // version of Reference::get also adds a memory barrier to prevent
+  // commoning reads from the referent field across safepoint since GC
+  // can change the referent field's value. See Compile::Compile()
+  // in src/share/vm/opto/compile.cpp for more details.
+  ccstr disable_intr = NULL;
+  if ((DisableIntrinsic[0] != '\0' && strstr(DisableIntrinsic, vmIntrinsics::name_at(id)) != NULL) ||
+      (!compilation_context.is_null() &&
+       CompilerOracle::has_option_value(compilation_context, "DisableIntrinsic", disable_intr) &&
+       strstr(disable_intr, vmIntrinsics::name_at(id)) != NULL)
+  ) {
+    return true;
+  }
+
+  // -XX:-InlineNatives disables nearly all intrinsics except the ones listed in
+  // the following switch statement.
+  if (!InlineNatives) {
+    switch (id) {
+    case vmIntrinsics::_indexOf:
+    case vmIntrinsics::_compareTo:
+    case vmIntrinsics::_equals:
+    case vmIntrinsics::_equalsC:
+    case vmIntrinsics::_getAndAddInt:
+    case vmIntrinsics::_getAndAddLong:
+    case vmIntrinsics::_getAndSetInt:
+    case vmIntrinsics::_getAndSetLong:
+    case vmIntrinsics::_getAndSetObject:
+    case vmIntrinsics::_loadFence:
+    case vmIntrinsics::_storeFence:
+    case vmIntrinsics::_fullFence:
+    case vmIntrinsics::_Reference_get:
+      break;
+    default:
+      return true;
+    }
+  }
+
+  if (!InlineUnsafeOps) {
+    switch (id) {
+    case vmIntrinsics::_loadFence:
+    case vmIntrinsics::_storeFence:
+    case vmIntrinsics::_fullFence:
+    case vmIntrinsics::_compareAndSwapObject:
+    case vmIntrinsics::_compareAndSwapLong:
+    case vmIntrinsics::_compareAndSwapInt:
+      return true;
+    default:
+      return false;
+    }
+  }
+
+  return false;
+}
+
 int C2Compiler::initial_code_buffer_size() {
   assert(SegmentedCodeCache, "Should be only used with a segmented code cache");
   return Compile::MAX_inst_size + Compile::MAX_locs_size + initial_const_capacity;
--- a/src/share/vm/opto/c2compiler.hpp	Tue Jul 21 13:36:28 2015 +0000
+++ b/src/share/vm/opto/c2compiler.hpp	Tue Jul 28 19:20:42 2015 +0200
@@ -36,7 +36,6 @@
 
   // Name
   const char *name() { return "C2"; }
-
   void initialize();
 
   // Compilation entry point for methods
@@ -52,6 +51,26 @@
   // Print compilation timers and statistics
   void print_timers();
 
+  // Check the availability of an intrinsic for 'method' given a compilation context.
+  virtual bool is_intrinsic_available(methodHandle method, methodHandle compilation_context);
+
+  // Return true if the intrinsification of a method supported by the compiler
+  // assuming a non-virtual dispatch. Return false otherwise.
+  virtual bool is_intrinsic_supported(methodHandle method) {
+    return is_intrinsic_supported(method, false);
+  }
+
+  // Check if the compiler supports an intrinsic for 'method' given the
+  // the dispatch mode specified by the 'is_virtual' parameter.
+  virtual bool is_intrinsic_supported(methodHandle method, bool is_virtual);
+
+  // Processing of command-line flags specific to the C2 compiler.
+  virtual bool is_intrinsic_disabled_by_flag(methodHandle method) {
+    return is_intrinsic_disabled_by_flag(method, NULL);
+  }
+
+  virtual bool is_intrinsic_disabled_by_flag(methodHandle method, methodHandle compilation_context);
+
   // Initial size of the code buffer (may be increased at runtime)
   static int initial_code_buffer_size();
 };
--- a/src/share/vm/opto/library_call.cpp	Tue Jul 21 13:36:28 2015 +0000
+++ b/src/share/vm/opto/library_call.cpp	Tue Jul 28 19:20:42 2015 +0200
@@ -31,6 +31,7 @@
 #include "oops/objArrayKlass.hpp"
 #include "opto/addnode.hpp"
 #include "opto/arraycopynode.hpp"
+#include "opto/c2compiler.hpp"
 #include "opto/callGenerator.hpp"
 #include "opto/castnode.hpp"
 #include "opto/cfgnode.hpp"
@@ -305,330 +306,40 @@
   bool inline_isCompileConstant();
 };
 
-
 //---------------------------make_vm_intrinsic----------------------------
 CallGenerator* Compile::make_vm_intrinsic(ciMethod* m, bool is_virtual) {
   vmIntrinsics::ID id = m->intrinsic_id();
   assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
 
-  ccstr disable_intr = NULL;
-
-  if ((DisableIntrinsic[0] != '\0'
-       && strstr(DisableIntrinsic, vmIntrinsics::name_at(id)) != NULL) ||
-      (method_has_option_value("DisableIntrinsic", disable_intr)
-       && strstr(disable_intr, vmIntrinsics::name_at(id)) != NULL)) {
-    // disabled by a user request on the command line:
-    // example: -XX:DisableIntrinsic=_hashCode,_getClass
+  if (!m->is_loaded()) {
+    // Do not attempt to inline unloaded methods.
     return NULL;
   }
 
-  if (!m->is_loaded()) {
-    // do not attempt to inline unloaded methods
-    return NULL;
-  }
-
-  // Only a few intrinsics implement a virtual dispatch.
-  // They are expensive calls which are also frequently overridden.
-  if (is_virtual) {
-    switch (id) {
-    case vmIntrinsics::_hashCode:
-    case vmIntrinsics::_clone:
-      // OK, Object.hashCode and Object.clone intrinsics come in both flavors
-      break;
-    default:
-      return NULL;
-    }
-  }
-
-  // -XX:-InlineNatives disables nearly all intrinsics:
-  if (!InlineNatives) {
-    switch (id) {
-    case vmIntrinsics::_indexOf:
-    case vmIntrinsics::_compareTo:
-    case vmIntrinsics::_equals:
-    case vmIntrinsics::_equalsC:
-    case vmIntrinsics::_getAndAddInt:
-    case vmIntrinsics::_getAndAddLong:
-    case vmIntrinsics::_getAndSetInt:
-    case vmIntrinsics::_getAndSetLong:
-    case vmIntrinsics::_getAndSetObject:
-    case vmIntrinsics::_loadFence:
-    case vmIntrinsics::_storeFence:
-    case vmIntrinsics::_fullFence:
-      break;  // InlineNatives does not control String.compareTo
-    case vmIntrinsics::_Reference_get:
-      break;  // InlineNatives does not control Reference.get
-    default:
-      return NULL;
-    }
-  }
-
-  int predicates = 0;
-  bool does_virtual_dispatch = false;
-
-  switch (id) {
-  case vmIntrinsics::_compareTo:
-    if (!SpecialStringCompareTo)  return NULL;
-    if (!Matcher::match_rule_supported(Op_StrComp))  return NULL;
-    break;
-  case vmIntrinsics::_indexOf:
-    if (!SpecialStringIndexOf)  return NULL;
-    break;
-  case vmIntrinsics::_equals:
-    if (!SpecialStringEquals)  return NULL;
-    if (!Matcher::match_rule_supported(Op_StrEquals))  return NULL;
-    break;
-  case vmIntrinsics::_equalsC:
-    if (!SpecialArraysEquals)  return NULL;
-    if (!Matcher::match_rule_supported(Op_AryEq))  return NULL;
-    break;
-  case vmIntrinsics::_arraycopy:
-    if (!InlineArrayCopy)  return NULL;
-    break;
-  case vmIntrinsics::_copyMemory:
-    if (StubRoutines::unsafe_arraycopy() == NULL)  return NULL;
-    if (!InlineArrayCopy)  return NULL;
-    break;
-  case vmIntrinsics::_hashCode:
-    if (!InlineObjectHash)  return NULL;
-    does_virtual_dispatch = true;
-    break;
-  case vmIntrinsics::_clone:
-    does_virtual_dispatch = true;
-  case vmIntrinsics::_copyOf:
-  case vmIntrinsics::_copyOfRange:
-    if (!InlineObjectCopy)  return NULL;
-    // These also use the arraycopy intrinsic mechanism:
-    if (!InlineArrayCopy)  return NULL;
-    break;
-  case vmIntrinsics::_encodeISOArray:
-    if (!SpecialEncodeISOArray)  return NULL;
-    if (!Matcher::match_rule_supported(Op_EncodeISOArray))  return NULL;
-    break;
-  case vmIntrinsics::_checkIndex:
-    // We do not intrinsify this.  The optimizer does fine with it.
-    return NULL;
-
-  case vmIntrinsics::_getCallerClass:
-    if (!InlineReflectionGetCallerClass)  return NULL;
-    if (SystemDictionary::reflect_CallerSensitive_klass() == NULL)  return NULL;
-    break;
-
-  case vmIntrinsics::_bitCount_i:
-    if (!Matcher::match_rule_supported(Op_PopCountI)) return NULL;
-    break;
-
-  case vmIntrinsics::_bitCount_l:
-    if (!Matcher::match_rule_supported(Op_PopCountL)) return NULL;
-    break;
-
-  case vmIntrinsics::_numberOfLeadingZeros_i:
-    if (!Matcher::match_rule_supported(Op_CountLeadingZerosI)) return NULL;
-    break;
-
-  case vmIntrinsics::_numberOfLeadingZeros_l:
-    if (!Matcher::match_rule_supported(Op_CountLeadingZerosL)) return NULL;
-    break;
-
-  case vmIntrinsics::_numberOfTrailingZeros_i:
-    if (!Matcher::match_rule_supported(Op_CountTrailingZerosI)) return NULL;
-    break;
-
-  case vmIntrinsics::_numberOfTrailingZeros_l:
-    if (!Matcher::match_rule_supported(Op_CountTrailingZerosL)) return NULL;
-    break;
-
-  case vmIntrinsics::_reverseBytes_c:
-    if (!Matcher::match_rule_supported(Op_ReverseBytesUS)) return NULL;
-    break;
-  case vmIntrinsics::_reverseBytes_s:
-    if (!Matcher::match_rule_supported(Op_ReverseBytesS))  return NULL;
-    break;
-  case vmIntrinsics::_reverseBytes_i:
-    if (!Matcher::match_rule_supported(Op_ReverseBytesI))  return NULL;
-    break;
-  case vmIntrinsics::_reverseBytes_l:
-    if (!Matcher::match_rule_supported(Op_ReverseBytesL))  return NULL;
-    break;
-
-  case vmIntrinsics::_Reference_get:
-    // Use the intrinsic version of Reference.get() so that the value in
-    // the referent field can be registered by the G1 pre-barrier code.
-    // Also add memory barrier to prevent commoning reads from this field
-    // across safepoint since GC can change it value.
-    break;
-
-  case vmIntrinsics::_compareAndSwapObject:
-#ifdef _LP64
-    if (!UseCompressedOops && !Matcher::match_rule_supported(Op_CompareAndSwapP)) return NULL;
-#endif
-    break;
-
-  case vmIntrinsics::_compareAndSwapLong:
-    if (!Matcher::match_rule_supported(Op_CompareAndSwapL)) return NULL;
-    break;
-
-  case vmIntrinsics::_getAndAddInt:
-    if (!Matcher::match_rule_supported(Op_GetAndAddI)) return NULL;
-    break;
-
-  case vmIntrinsics::_getAndAddLong:
-    if (!Matcher::match_rule_supported(Op_GetAndAddL)) return NULL;
-    break;
-
-  case vmIntrinsics::_getAndSetInt:
-    if (!Matcher::match_rule_supported(Op_GetAndSetI)) return NULL;
-    break;
-
-  case vmIntrinsics::_getAndSetLong:
-    if (!Matcher::match_rule_supported(Op_GetAndSetL)) return NULL;
-    break;
-
-  case vmIntrinsics::_getAndSetObject:
-#ifdef _LP64
-    if (!UseCompressedOops && !Matcher::match_rule_supported(Op_GetAndSetP)) return NULL;
-    if (UseCompressedOops && !Matcher::match_rule_supported(Op_GetAndSetN)) return NULL;
-    break;
-#else
-    if (!Matcher::match_rule_supported(Op_GetAndSetP)) return NULL;
-    break;
-#endif
-
-  case vmIntrinsics::_aescrypt_encryptBlock:
-  case vmIntrinsics::_aescrypt_decryptBlock:
-    if (!UseAESIntrinsics) return NULL;
-    break;
-
-  case vmIntrinsics::_multiplyToLen:
-    if (!UseMultiplyToLenIntrinsic) return NULL;
-    break;
-
-  case vmIntrinsics::_squareToLen:
-    if (!UseSquareToLenIntrinsic) return NULL;
-    break;
-
-  case vmIntrinsics::_mulAdd:
-    if (!UseMulAddIntrinsic) return NULL;
-    break;
-
-  case vmIntrinsics::_montgomeryMultiply:
-     if (!UseMontgomeryMultiplyIntrinsic) return NULL;
-    break;
-  case vmIntrinsics::_montgomerySquare:
-     if (!UseMontgomerySquareIntrinsic) return NULL;
-    break;
-
-  case vmIntrinsics::_cipherBlockChaining_encryptAESCrypt:
-  case vmIntrinsics::_cipherBlockChaining_decryptAESCrypt:
-    if (!UseAESIntrinsics) return NULL;
-    // these two require the predicated logic
-    predicates = 1;
-    break;
-
-  case vmIntrinsics::_sha_implCompress:
-    if (!UseSHA1Intrinsics) return NULL;
-    break;
-
-  case vmIntrinsics::_sha2_implCompress:
-    if (!UseSHA256Intrinsics) return NULL;
-    break;
-
-  case vmIntrinsics::_sha5_implCompress:
-    if (!UseSHA512Intrinsics) return NULL;
-    break;
-
-  case vmIntrinsics::_digestBase_implCompressMB:
-    if (!(UseSHA1Intrinsics || UseSHA256Intrinsics || UseSHA512Intrinsics)) return NULL;
-    predicates = 3;
-    break;
-
-  case vmIntrinsics::_ghash_processBlocks:
-    if (!UseGHASHIntrinsics) return NULL;
-    break;
-
-  case vmIntrinsics::_updateCRC32:
-  case vmIntrinsics::_updateBytesCRC32:
-  case vmIntrinsics::_updateByteBufferCRC32:
-    if (!UseCRC32Intrinsics) return NULL;
-    break;
-
-  case vmIntrinsics::_updateBytesCRC32C:
-  case vmIntrinsics::_updateDirectByteBufferCRC32C:
-    if (!UseCRC32CIntrinsics) return NULL;
-    break;
-
-  case vmIntrinsics::_incrementExactI:
-  case vmIntrinsics::_addExactI:
-    if (!Matcher::match_rule_supported(Op_OverflowAddI) || !UseMathExactIntrinsics) return NULL;
-    break;
-  case vmIntrinsics::_incrementExactL:
-  case vmIntrinsics::_addExactL:
-    if (!Matcher::match_rule_supported(Op_OverflowAddL) || !UseMathExactIntrinsics) return NULL;
-    break;
-  case vmIntrinsics::_decrementExactI:
-  case vmIntrinsics::_subtractExactI:
-    if (!Matcher::match_rule_supported(Op_OverflowSubI) || !UseMathExactIntrinsics) return NULL;
-    break;
-  case vmIntrinsics::_decrementExactL:
-  case vmIntrinsics::_subtractExactL:
-    if (!Matcher::match_rule_supported(Op_OverflowSubL) || !UseMathExactIntrinsics) return NULL;
-    break;
-  case vmIntrinsics::_negateExactI:
-    if (!Matcher::match_rule_supported(Op_OverflowSubI) || !UseMathExactIntrinsics) return NULL;
-    break;
-  case vmIntrinsics::_negateExactL:
-    if (!Matcher::match_rule_supported(Op_OverflowSubL) || !UseMathExactIntrinsics) return NULL;
-    break;
-  case vmIntrinsics::_multiplyExactI:
-    if (!Matcher::match_rule_supported(Op_OverflowMulI) || !UseMathExactIntrinsics) return NULL;
-    break;
-  case vmIntrinsics::_multiplyExactL:
-    if (!Matcher::match_rule_supported(Op_OverflowMulL) || !UseMathExactIntrinsics) return NULL;
-    break;
-
-  case vmIntrinsics::_getShortUnaligned:
-  case vmIntrinsics::_getCharUnaligned:
-  case vmIntrinsics::_getIntUnaligned:
-  case vmIntrinsics::_getLongUnaligned:
-  case vmIntrinsics::_putShortUnaligned:
-  case vmIntrinsics::_putCharUnaligned:
-  case vmIntrinsics::_putIntUnaligned:
-  case vmIntrinsics::_putLongUnaligned:
-    if (!UseUnalignedAccesses) return NULL;
-    break;
-
- default:
+  C2Compiler* compiler = (C2Compiler*)CompileBroker::compiler(CompLevel_full_optimization);
+  bool is_available = false;
+
+  {
+    // For calling is_intrinsic_supported and is_intrinsic_disabled_by_flag
+    // the compiler must transition to '_thread_in_vm' state because both
+    // methods access VM-internal data.
+    VM_ENTRY_MARK;
+    methodHandle mh(THREAD, m->get_Method());
+    methodHandle ct(THREAD, method()->get_Method());
+    is_available = compiler->is_intrinsic_supported(mh, is_virtual) &&
+                   !compiler->is_intrinsic_disabled_by_flag(mh, ct);
+  }
+
+  if (is_available) {
     assert(id <= vmIntrinsics::LAST_COMPILER_INLINE, "caller responsibility");
     assert(id != vmIntrinsics::_Object_init && id != vmIntrinsics::_invoke, "enum out of order?");
-    break;
-  }
-
-  // -XX:-InlineClassNatives disables natives from the Class class.
-  // The flag applies to all reflective calls, notably Array.newArray
-  // (visible to Java programmers as Array.newInstance).
-  if (m->holder()->name() == ciSymbol::java_lang_Class() ||
-      m->holder()->name() == ciSymbol::java_lang_reflect_Array()) {
-    if (!InlineClassNatives)  return NULL;
-  }
-
-  // -XX:-InlineThreadNatives disables natives from the Thread class.
-  if (m->holder()->name() == ciSymbol::java_lang_Thread()) {
-    if (!InlineThreadNatives)  return NULL;
-  }
-
-  // -XX:-InlineMathNatives disables natives from the Math,Float and Double classes.
-  if (m->holder()->name() == ciSymbol::java_lang_Math() ||
-      m->holder()->name() == ciSymbol::java_lang_Float() ||
-      m->holder()->name() == ciSymbol::java_lang_Double()) {
-    if (!InlineMathNatives)  return NULL;
-  }
-
-  // -XX:-InlineUnsafeOps disables natives from the Unsafe class.
-  if (m->holder()->name() == ciSymbol::sun_misc_Unsafe()) {
-    if (!InlineUnsafeOps)  return NULL;
-  }
-
-  return new LibraryIntrinsic(m, is_virtual, predicates, does_virtual_dispatch, (vmIntrinsics::ID) id);
+    return new LibraryIntrinsic(m, is_virtual,
+                                vmIntrinsics::predicates_needed(id),
+                                vmIntrinsics::does_virtual_dispatch(id),
+                                (vmIntrinsics::ID) id);
+  } else {
+    return NULL;
+  }
 }
 
 //----------------------register_library_intrinsics-----------------------
@@ -812,7 +523,6 @@
   case vmIntrinsics::_getLong:                  return inline_unsafe_access(!is_native_ptr, !is_store, T_LONG,    !is_volatile);
   case vmIntrinsics::_getFloat:                 return inline_unsafe_access(!is_native_ptr, !is_store, T_FLOAT,   !is_volatile);
   case vmIntrinsics::_getDouble:                return inline_unsafe_access(!is_native_ptr, !is_store, T_DOUBLE,  !is_volatile);
-
   case vmIntrinsics::_putObject:                return inline_unsafe_access(!is_native_ptr,  is_store, T_OBJECT,  !is_volatile);
   case vmIntrinsics::_putBoolean:               return inline_unsafe_access(!is_native_ptr,  is_store, T_BOOLEAN, !is_volatile);
   case vmIntrinsics::_putByte:                  return inline_unsafe_access(!is_native_ptr,  is_store, T_BYTE,    !is_volatile);
--- a/src/share/vm/prims/whitebox.cpp	Tue Jul 21 13:36:28 2015 +0000
+++ b/src/share/vm/prims/whitebox.cpp	Tue Jul 28 19:20:42 2015 +0200
@@ -528,6 +528,24 @@
   return mh->queued_for_compilation();
 WB_END
 
+WB_ENTRY(jboolean, WB_IsIntrinsicAvailable(JNIEnv* env, jobject o, jobject method, jobject compilation_context, jint compLevel))
+  if (compLevel < CompLevel_none || compLevel > CompLevel_highest_tier) {
+    return false; // Intrinsic is not available on a non-existent compilation level.
+  }
+  jmethodID method_id, compilation_context_id;
+  method_id = reflected_method_to_jmid(thread, env, method);
+  CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
+  methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(method_id));
+  if (compilation_context != NULL) {
+    compilation_context_id = reflected_method_to_jmid(thread, env, compilation_context);
+    CHECK_JNI_EXCEPTION_(env, JNI_FALSE);
+    methodHandle cch(THREAD, Method::checked_resolve_jmethod_id(compilation_context_id));
+    return CompileBroker::compiler(compLevel)->is_intrinsic_available(mh, cch);
+  } else {
+    return CompileBroker::compiler(compLevel)->is_intrinsic_available(mh, NULL);
+  }
+WB_END
+
 WB_ENTRY(jint, WB_GetMethodCompilationLevel(JNIEnv* env, jobject o, jobject method, jboolean is_osr))
   jmethodID jmid = reflected_method_to_jmid(thread, env, method);
   CHECK_JNI_EXCEPTION_(env, CompLevel_none);
@@ -1477,14 +1495,17 @@
 #endif // INCLUDE_NMT
   {CC"deoptimizeFrames",   CC"(Z)I",                  (void*)&WB_DeoptimizeFrames  },
   {CC"deoptimizeAll",      CC"()V",                   (void*)&WB_DeoptimizeAll     },
-  {CC"deoptimizeMethod0",   CC"(Ljava/lang/reflect/Executable;Z)I",
-                                                      (void*)&WB_DeoptimizeMethod  },
+    {CC"deoptimizeMethod0",   CC"(Ljava/lang/reflect/Executable;Z)I",
+                                                        (void*)&WB_DeoptimizeMethod  },
   {CC"isMethodCompiled0",   CC"(Ljava/lang/reflect/Executable;Z)Z",
                                                       (void*)&WB_IsMethodCompiled  },
   {CC"isMethodCompilable0", CC"(Ljava/lang/reflect/Executable;IZ)Z",
                                                       (void*)&WB_IsMethodCompilable},
   {CC"isMethodQueuedForCompilation0",
       CC"(Ljava/lang/reflect/Executable;)Z",          (void*)&WB_IsMethodQueuedForCompilation},
+  {CC"isIntrinsicAvailable0",
+      CC"(Ljava/lang/reflect/Executable;Ljava/lang/reflect/Executable;I)Z",
+                                                      (void*)&WB_IsIntrinsicAvailable},
   {CC"makeMethodNotCompilable0",
       CC"(Ljava/lang/reflect/Executable;IZ)V",        (void*)&WB_MakeMethodNotCompilable},
   {CC"testSetDontInlineMethod0",
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/intrinsics/IntrinsicAvailableTest.java	Tue Jul 28 19:20:42 2015 +0200
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+import java.lang.reflect.Executable;
+import java.util.concurrent.Callable;
+import java.util.Objects;
+/*
+ * @test
+ * @bug 8130832
+ * @library /testlibrary /../../test/lib /compiler/whitebox /compiler/testlibrary
+ * @build IntrinsicAvailableTest
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ *                              sun.hotspot.WhiteBox$WhiteBoxPermission
+ * @run main/othervm -Xbootclasspath/a:.
+ *                   -XX:+UnlockDiagnosticVMOptions
+ *                   -XX:+WhiteBoxAPI
+ *                   -XX:+UseCRC32Intrinsics
+ *                   IntrinsicAvailableTest
+ * @run main/othervm -Xbootclasspath/a:.
+ *                   -XX:+UnlockDiagnosticVMOptions
+ *                   -XX:+WhiteBoxAPI
+ *                   -XX:-UseCRC32Intrinsics
+ *                   IntrinsicAvailableTest
+ */
+public class IntrinsicAvailableTest extends CompilerWhiteBoxTest {
+    protected String VMName;
+
+    public IntrinsicAvailableTest(IntrinsicAvailableTestTestCase testCase) {
+        super(testCase);
+        VMName = System.getProperty("java.vm.name");
+    }
+
+    public static class IntrinsicAvailableTestTestCase implements TestCase {
+
+        public String name() {
+            return "IntrinsicAvailableTestTestCase";
+        }
+
+        public Executable getExecutable() {
+            // Using a single method to test the
+            // WhiteBox.isIntrinsicAvailable(Executable method, int compLevel)
+            // call for the compilation level corresponding to both the C1 and C2
+            // compiler keeps the current test simple.
+            //
+            // The tested method is java.util.zip.CRC32.update(int, int) because
+            // both C1 and C2 define an intrinsic for the method and
+            // the UseCRC32Intrinsics flag can be used to enable/disable
+            // intrinsification of the method in both product and fastdebug
+            // builds.
+            try {
+                return Class.forName("java.util.zip.CRC32").getDeclaredMethod("update", int.class, int.class);
+            } catch (NoSuchMethodException e) {
+                throw new RuntimeException("Test bug, method unavailable. " + e);
+            } catch (ClassNotFoundException e) {
+                throw new RuntimeException("Test bug, class unavailable. " + e);
+            }
+        }
+
+        public Callable<Integer> getCallable() {
+            return null;
+        }
+
+        public boolean isOsr() {
+            return false;
+        }
+
+    }
+
+    protected void checkIntrinsicForCompilationLevel(Executable method, int compLevel) throws Exception {
+        boolean intrinsicEnabled = Boolean.valueOf(getVMOption("UseCRC32Intrinsics"));
+        boolean intrinsicAvailable = WHITE_BOX.isIntrinsicAvailable(method,
+                                                                    compLevel);
+
+        String intrinsicEnabledMessage = intrinsicEnabled ? "enabled" : "disabled";
+        String intrinsicAvailableMessage = intrinsicAvailable ? "available" : "not available";
+
+        if (intrinsicEnabled == intrinsicAvailable) {
+            System.out.println("Expected result: intrinsic for java.util.zip.CRC32.update() is " +
+                               intrinsicEnabledMessage + " and intrinsic is " + intrinsicAvailableMessage +
+                               " at compilation level " + compLevel);
+        } else {
+            throw new RuntimeException("Unexpected result: intrinsic for java.util.zip.CRC32.update() is " +
+                                       intrinsicEnabledMessage + " but intrinsic is " + intrinsicAvailableMessage +
+                                       " at compilation level " + compLevel);
+        }
+    }
+
+    protected boolean isServerVM() {
+        return VMName.toLowerCase().contains("server");
+    }
+
+    public void test() throws Exception {
+        Executable intrinsicMethod = testCase.getExecutable();
+        if (isServerVM()) {
+            if (TIERED_COMPILATION) {
+                checkIntrinsicForCompilationLevel(intrinsicMethod, COMP_LEVEL_SIMPLE);
+            }
+            checkIntrinsicForCompilationLevel(intrinsicMethod, COMP_LEVEL_FULL_OPTIMIZATION);
+        } else {
+            checkIntrinsicForCompilationLevel(intrinsicMethod, COMP_LEVEL_SIMPLE);
+        }
+    }
+
+    public static void main(String args[]) throws Exception {
+        new IntrinsicAvailableTest(new IntrinsicAvailableTestTestCase()).test();
+    }
+}
--- a/test/compiler/intrinsics/mathexact/sanity/IntrinsicBase.java	Tue Jul 21 13:36:28 2015 +0000
+++ b/test/compiler/intrinsics/mathexact/sanity/IntrinsicBase.java	Tue Jul 28 19:20:42 2015 +0200
@@ -67,7 +67,7 @@
                     compileAtLevel(CompilerWhiteBoxTest.COMP_LEVEL_SIMPLE);
                 }
 
-                if (!isIntrinsicSupported()) {
+                if (!isIntrinsicAvailable()) {
                     expectedIntrinsicCount = 0;
                 }
                 break;
@@ -114,7 +114,11 @@
         }
     }
 
-    protected abstract boolean isIntrinsicSupported();
+    // An intrinsic is available if:
+    // - the intrinsic is enabled (by using the appropriate command-line flag) and
+    // - the intrinsic is supported by the VM (i.e., the platform on which the VM is
+    //   running provides the instructions necessary for the VM to generate the intrinsic).
+    protected abstract boolean isIntrinsicAvailable();
 
     protected abstract String getIntrinsicId();
 
@@ -123,14 +127,20 @@
     }
 
     static class IntTest extends IntrinsicBase {
+
+        protected boolean isIntrinsicAvailable; // The tested intrinsic is available on the current platform.
+
         protected IntTest(MathIntrinsic.IntIntrinsic testCase) {
             super(testCase);
+            // Only the C2 compiler intrinsifies exact math methods
+            // so check if the intrinsics are available with C2.
+            isIntrinsicAvailable = WHITE_BOX.isIntrinsicAvailable(testCase.getTestMethod(),
+                                                                  COMP_LEVEL_FULL_OPTIMIZATION);
         }
 
         @Override
-        protected boolean isIntrinsicSupported() {
-            return isServerVM() && Boolean.valueOf(useMathExactIntrinsics)
-                && (Platform.isX86() || Platform.isX64() || Platform.isAArch64());
+        protected boolean isIntrinsicAvailable() {
+            return isIntrinsicAvailable;
         }
 
         @Override
@@ -140,14 +150,20 @@
     }
 
     static class LongTest extends IntrinsicBase {
+
+        protected boolean isIntrinsicAvailable; // The tested intrinsic is available on the current platform.
+
         protected LongTest(MathIntrinsic.LongIntrinsic testCase) {
             super(testCase);
+            // Only the C2 compiler intrinsifies exact math methods
+            // so check if the intrinsics are available with C2.
+            isIntrinsicAvailable = WHITE_BOX.isIntrinsicAvailable(testCase.getTestMethod(),
+                                                                  COMP_LEVEL_FULL_OPTIMIZATION);
         }
 
         @Override
-        protected boolean isIntrinsicSupported() {
-            return isServerVM() && Boolean.valueOf(useMathExactIntrinsics) &&
-                (Platform.isX64() || Platform.isPPC() || Platform.isAArch64());
+        protected boolean isIntrinsicAvailable() {
+            return isIntrinsicAvailable;
         }
 
         @Override
--- a/test/compiler/intrinsics/mathexact/sanity/MathIntrinsic.java	Tue Jul 21 13:36:28 2015 +0000
+++ b/test/compiler/intrinsics/mathexact/sanity/MathIntrinsic.java	Tue Jul 28 19:20:42 2015 +0200
@@ -29,11 +29,21 @@
     enum IntIntrinsic implements CompilerWhiteBoxTest.TestCase {
         Add {
             @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("addExact", int.class, int.class);
+            }
+
+            @Override
             Object execMathMethod() {
                 return intR = Math.addExact(int1, int2);
             }
         },
-        Subtract {
+       Subtract {
+            @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("subtractExact", int.class, int.class);
+            }
+
             @Override
             Object execMathMethod() {
                 return intR = Math.subtractExact(int1, int2);
@@ -41,34 +51,66 @@
         },
         Multiply {
             @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("multiplyExact", int.class, int.class);
+            }
+
+            @Override
             Object execMathMethod() {
                 return intR = Math.multiplyExact(int1, int2);
             }
         },
         Increment {
             @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("incrementExact", int.class);
+            }
+
+            @Override
             Object execMathMethod() {
                 return intR = Math.incrementExact(int1);
             }
         },
         Decrement {
             @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("decrementExact", int.class);
+            }
+
+            @Override
             Object execMathMethod() {
                 return intR = Math.decrementExact(int1);
             }
         },
         Negate {
             @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("negateExact", int.class);
+            }
+
+            @Override
             Object execMathMethod() {
                 return intR = Math.negateExact(int1);
             }
         };
+
         protected int int1;
         protected int int2;
         protected int intR;
 
+        abstract Executable testMethod() throws NoSuchMethodException, ClassNotFoundException;
         abstract Object execMathMethod();
 
+        public Executable getTestMethod() {
+            try {
+                return testMethod();
+            } catch (NoSuchMethodException e) {
+                throw new RuntimeException("Test bug, no such method: " + e);
+            } catch (ClassNotFoundException e) {
+                throw new RuntimeException("Test bug, no such class: " + e);
+            }
+        }
+
         @Override
         public Executable getExecutable() {
             try {
@@ -93,36 +135,66 @@
     enum LongIntrinsic implements CompilerWhiteBoxTest.TestCase {
         Add {
             @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("addExact", long.class, long.class);
+            }
+
+            @Override
             Object execMathMethod() {
                 return longR = Math.addExact(long1, long2);
             }
         },
         Subtract {
             @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("subtractExact", long.class, long.class);
+            }
+
+            @Override
             Object execMathMethod() {
                 return longR = Math.subtractExact(long1, long2);
             }
         },
         Multiply {
             @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("multiplyExact", long.class, long.class);
+            }
+
+            @Override
             Object execMathMethod() {
                 return longR = Math.multiplyExact(long1, long2);
             }
         },
         Increment {
             @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("incrementExact", long.class);
+            }
+
+            @Override
             Object execMathMethod() {
                 return longR = Math.incrementExact(long1);
             }
         },
         Decrement {
             @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("decrementExact", long.class);
+            }
+
+            @Override
             Object execMathMethod() {
                 return longR = Math.decrementExact(long1);
             }
         },
         Negate {
             @Override
+            Executable testMethod() throws NoSuchMethodException, ClassNotFoundException {
+                return Class.forName("java.lang.Math").getDeclaredMethod("negateExact", long.class);
+            }
+
+            @Override
             Object execMathMethod() {
                 return longR = Math.negateExact(long1);
             }
@@ -131,8 +203,19 @@
         protected long long2;
         protected long longR;
 
+        abstract Executable testMethod() throws NoSuchMethodException, ClassNotFoundException;
         abstract Object execMathMethod();
 
+        public Executable getTestMethod() {
+            try {
+                return testMethod();
+            } catch (NoSuchMethodException e) {
+                throw new RuntimeException("Test bug, no such method: " + e);
+            } catch (ClassNotFoundException e) {
+                throw new RuntimeException("Test bug, no such class: " + e);
+            }
+        }
+
         @Override
         public Executable getExecutable() {
             try {