1 files changed, 1 insertions, 0 deletions

diff --git a/src/lj_opt_split.c b/src/lj_opt_split.c
index bd785d65..31abe419 100644
--- a/src/lj_opt_split.c
+++ b/src/lj_opt_split.c
@@ -335,6 +335,7 @@ static void split_ir(jit_State *J)
         }
       case IR_CONV: {  /* Conversion to number. Others handled below. */
         IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+        UNUSED(st);
 #if LJ_32 && LJ_HASFFI
         if (st == IRT_I64 || st == IRT_U64) {
           hi = split_call_l(J, hisubst, oir, ir,