1 files changed, 11 insertions, 0 deletions

diff --git a/src/lj_target_x86.h b/src/lj_target_x86.h
index 289f83e1..e29f4748 100644
--- a/src/lj_target_x86.h
+++ b/src/lj_target_x86.h
@@ -189,6 +189,11 @@ typedef struct {
 #define XO_f20f(o)      ((uint32_t)(0x0ff2fc + (0x##o<<24)))
 #define XO_f30f(o)      ((uint32_t)(0x0ff3fc + (0x##o<<24)))
 
+#define XV_660f38(o)    ((uint32_t)(0x79e2c4 + (0x##o<<24)))
+#define XV_f20f38(o)    ((uint32_t)(0x7be2c4 + (0x##o<<24)))
+#define XV_f20f3a(o)    ((uint32_t)(0x7be3c4 + (0x##o<<24)))
+#define XV_f30f38(o)    ((uint32_t)(0x7ae2c4 + (0x##o<<24)))
+
 /* This list of x86 opcodes is not intended to be complete. Opcodes are only
 ** included when needed. Take a look at DynASM or jit.dis_x86 to see the
 ** whole mess.
@@ -231,6 +236,12 @@ typedef enum {
   XI_FSCALE =   0xfdd9,
   XI_FYL2X =    0xf1d9,
 
+  /* VEX-encoded instructions. XV_* prefix. */
+  XV_RORX =     XV_f20f3a(f0),
+  XV_SARX =     XV_f30f38(f7),
+  XV_SHLX =     XV_660f38(f7),
+  XV_SHRX =     XV_f20f38(f7),
+
   /* Variable-length opcodes. XO_* prefix. */
   XO_MOV =      XO_(8b),
   XO_MOVto =    XO_(89),