1 files changed, 6 insertions, 4 deletions

diff --git a/src/lj_opt_loop.c b/src/lj_opt_loop.c
index c5919ca0..2eacb7d7 100644
--- a/src/lj_opt_loop.c
+++ b/src/lj_opt_loop.c
@@ -352,10 +352,12 @@ static void loop_unroll(LoopState *lps)
             irr = IR(ref);
             goto phiconv;
           }
-        } else if (ref != REF_DROP && irr->o == IR_CONV &&
-                   ref > invar && irr->op1 < invar) {
-          /* May need an extra PHI for a CONV. */
-          ref = irr->op1;
+        } else if (ref != REF_DROP && ref > invar &&
+                   ((irr->o == IR_CONV && irr->op1 < invar) ||
+                    (irr->o == IR_ALEN && irr->op2 < invar &&
+                                          irr->op2 != REF_NIL))) {
+          /* May need an extra PHI for a CONV or ALEN hint. */
+          ref = irr->o == IR_CONV ? irr->op1 : irr->op2;
           irr = IR(ref);
         phiconv:
           if (ref < invar && !irref_isk(ref) && !irt_isphi(irr->t)) {