MicroBlaze does not support speculative execution (CVE-2017-5753)
gcc/
PR target/86772
Tracking CVE-2017-5753
* config/microblaze/microblaze.cc (TARGET_HAVE_SPECULATION_SAFE_VALUE):
Define to speculation_save_value_not_needed
diff --git a/gcc/config/microblaze/microblaze.cc b/gcc/config/microblaze/microblaze.cc
index fc223fb..4b7f0a1 100644
--- a/gcc/config/microblaze/microblaze.cc
+++ b/gcc/config/microblaze/microblaze.cc
@@ -239,6 +239,10 @@
#define TARGET_HAVE_TLS true
#endif
+/* MicroBlaze does not do speculative execution. */
+#undef TARGET_HAVE_SPECULATION_SAFE_VALUE
+#define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed
+
/* Return truth value if a CONST_DOUBLE is ok to be a legitimate constant. */
static bool
microblaze_const_double_ok (rtx op, machine_mode mode)
