re PR target/86798 (nds32 port needs updating for CVE-2017-5753)

	PR target/86798
	* config/nds32/nds32.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
	Define to speculation_safe_value_not_needed.

From-SVN: r264503

gcc/ChangeLog

+2018-09-22  Chung-Ju Wu  <jasonwucj@gmail.com>
+
+	PR target/86798
+	* config/nds32/nds32.c (TARGET_HAVE_SPECULATION_SAFE_VALUE):
+	Define to speculation_safe_value_not_needed.
+
 2018-09-21  Florian Weimer  <fweimer@redhat.com>
 
 	PR middle-end/81035

gcc/config/nds32/nds32.c

@@ -5877,6 +5877,9 @@ nds32_use_blocks_for_constant_p (machine_mode mode,
 #undef TARGET_USE_BLOCKS_FOR_CONSTANT_P
 #define TARGET_USE_BLOCKS_FOR_CONSTANT_P nds32_use_blocks_for_constant_p
 
+#undef  TARGET_HAVE_SPECULATION_SAFE_VALUE
+#define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed
+
 
 /* ------------------------------------------------------------------------ */