re PR target/86784 (H8 port needs updating for CVE-2017-5753)

	PR target/86784
	* config/h8300/h8300.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
	Define to speculation_safe_value_not_needed.

From-SVN: r263270

gcc/ChangeLog

+2018-08-02  Jeff Law  <law@redhat.com>
+
+	PR target/86784
+	* config/h8300/h8300.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
+	Define to speculation_safe_value_not_needed.
+
 2018-08-02  Tom de Vries  <tdevries@suse.de>
 
 	PR target/86660

gcc/config/h8300/h8300.c

@@ -6148,4 +6148,7 @@ h8300_push_rounding (poly_int64 bytes)
 #undef TARGET_MODE_DEPENDENT_ADDRESS_P
 #define TARGET_MODE_DEPENDENT_ADDRESS_P h8300_mode_dependent_address_p
 
+#undef TARGET_HAVE_SPECULATION_SAFE_VALUE
+#define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed
+
 struct gcc_target targetm = TARGET_INITIALIZER;