If the vex_special field was not initialized, it was considered to be
X86_VEX_SSEUnaligned (whose value was zero).  Add a new value to
fix that.

Cc: qemu-stable@nongnu.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/decode-new.h     |  2 ++
 target/i386/tcg/decode-new.c.inc | 11 +++++++----
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/target/i386/tcg/decode-new.h b/target/i386/tcg/decode-new.h
index 7f23d373ea7..92822969003 100644
--- a/target/i386/tcg/decode-new.h
+++ b/target/i386/tcg/decode-new.h
@@ -242,6 +242,8 @@ typedef enum X86InsnSpecial {
  * section of the manual.
  */
 typedef enum X86VEXSpecial {
+    X86_VEX_None,
+
     /* Legacy SSE instructions that allow unaligned operands */
     X86_VEX_SSEUnaligned,
 
diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc
index 9d3a7c0d426..f662364c600 100644
--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -1068,15 +1068,15 @@ static void decode_0F10(DisasContext *s, CPUX86State *env, X86OpEntry *entry, ui
 static void decode_0F11(DisasContext *s, CPUX86State *env, X86OpEntry *entry, uint8_t *b)
 {
     static const X86OpEntry opcodes_0F11_reg[4] = {
-        X86_OP_ENTRY3(MOVDQ,   W,x,  None,None, V,x, vex4), /* MOVUPS */
-        X86_OP_ENTRY3(MOVDQ,   W,x,  None,None, V,x, vex4), /* MOVUPD */
+        X86_OP_ENTRY3(MOVDQ,   W,x,  None,None, V,x, vex4_unal), /* MOVUPS */
+        X86_OP_ENTRY3(MOVDQ,   W,x,  None,None, V,x, vex4_unal), /* MOVUPD */
         X86_OP_ENTRY3(VMOVSS,  W,x,  H,x,       V,x, vex5),
         X86_OP_ENTRY3(VMOVLPx, W,x,  H,x,       V,q, vex5), /* MOVSD */
     };
 
     static const X86OpEntry opcodes_0F11_mem[4] = {
-        X86_OP_ENTRY3(MOVDQ,      W,x,  None,None, V,x, vex4), /* MOVUPS */
-        X86_OP_ENTRY3(MOVDQ,      W,x,  None,None, V,x, vex4), /* MOVUPD */
+        X86_OP_ENTRY3(MOVDQ,      W,x,  None,None, V,x, vex4_unal), /* MOVUPS */
+        X86_OP_ENTRY3(MOVDQ,      W,x,  None,None, V,x, vex4_unal), /* MOVUPD */
         X86_OP_ENTRY3(VMOVSS_st,  M,ss, None,None, V,x, vex5),
         X86_OP_ENTRY3(VMOVLPx_st, M,sd, None,None, V,x, vex5), /* MOVSD */
     };
@@ -2624,6 +2624,9 @@ static bool validate_vex(DisasContext *s, X86DecodedInsn *decode)
     X86OpEntry *e = &decode->e;
 
     switch (e->vex_special) {
+    case X86_VEX_None:
+        break;
+
     case X86_VEX_REPScalar:
         /*
          * Instructions which differ between 00/66 and F2/F3 in the
-- 
2.52.0