target-i386: add pclmulqdq instruction

Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
diff --git a/target-i386/ops_sse_header.h b/target-i386/ops_sse_header.h
index 401eac6..2842233 100644
--- a/target-i386/ops_sse_header.h
+++ b/target-i386/ops_sse_header.h
@@ -336,6 +336,11 @@
 DEF_HELPER_3(popcnt, tl, env, tl, i32)
 #endif
 
+/* AES-NI op helpers */
+#if SHIFT == 1
+DEF_HELPER_4(glue(pclmulqdq, SUFFIX), void, env, Reg, Reg, i32)
+#endif
+
 #undef SHIFT
 #undef Reg
 #undef SUFFIX