re PR target/86791 (mcore port needs updating for CVE-2017-5753)

	PR target/86791
	* config/mcore/mcore.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
	Define to speculation_safe_value_not_needed.

From-SVN: r263258

gcc/ChangeLog

@@ -9,6 +9,10 @@
 
 2018-08-02  Nick Clifton  <nickc@redhat.com>
 
+	PR target/86791
+	* config/mcore/mcore.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
+	Define to speculation_safe_value_not_needed.
+
 	PR target/86789
 	* config/m32r/m32r.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
 	Define to speculation_safe_value_not_needed.

gcc/config/mcore/mcore.c

@@ -253,6 +253,9 @@ static const struct attribute_spec mcore_attribute_table[] =
 #undef TARGET_CONSTANT_ALIGNMENT
 #define TARGET_CONSTANT_ALIGNMENT constant_alignment_word_strings
 
+#undef  TARGET_HAVE_SPECULATION_SAFE_VALUE
+#define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed
+
 struct gcc_target targetm = TARGET_INITIALIZER;
 
 /* Adjust the stack and return the number of bytes taken to do it.  */