diff --git a/qemu/tcg/tcg.h b/qemu/tcg/tcg.h
index aa5622a5..0dd2b54b 100644
--- a/qemu/tcg/tcg.h
+++ b/qemu/tcg/tcg.h
@@ -491,6 +491,12 @@ static inline TCGCond tcg_unsigned_cond(TCGCond c)
     return c & 2 ? (TCGCond)(c ^ 6) : c;
 }
 
+/* Create a "signed" version of an "unsigned" comparison.  */
+static inline TCGCond tcg_signed_cond(TCGCond c)
+{
+    return c & 4 ? (TCGCond)(c ^ 6) : c;
+}
+
 /* Must a comparison be considered unsigned?  */
 static inline bool is_unsigned_cond(TCGCond c)
 {