re PR target/86794 (mmix port needs updating for CVE-2017-5753)

	PR target/86794
	* config/mmix/mmix.c (TARGET_HAVE_SPECULATION_SAFE_VALUE): Redefine
	to speculation_safe_value_not_needed.

From-SVN: r264184

gcc/ChangeLog

 2018-09-09  Hans-Peter Nilsson  <hp@bitrange.com>
 
+	PR target/86794
+	* config/mmix/mmix.c (TARGET_HAVE_SPECULATION_SAFE_VALUE): Redefine
+	to speculation_safe_value_not_needed.
+
 	PR target/85666
 	* config/mmix/mmix.c (mmix_assemble_integer): Handle byte-size
 	non-CONST_INT rtx:es using assemble_integer_with_op ".byte".

gcc/config/mmix/mmix.c

@@ -224,6 +224,9 @@ static HOST_WIDE_INT mmix_starting_frame_offset (void);
 #undef TARGET_CONDITIONAL_REGISTER_USAGE
 #define TARGET_CONDITIONAL_REGISTER_USAGE mmix_conditional_register_usage
 
+#undef TARGET_HAVE_SPECULATION_SAFE_VALUE
+#define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed
+
 #undef TARGET_RTX_COSTS
 #define TARGET_RTX_COSTS mmix_rtx_costs
 #undef TARGET_ADDRESS_COST