1 files changed, 4 insertions, 4 deletions

diff --git a/src/lj_asm_x86.h b/src/lj_asm_x86.h
index 8b529086..bfbdb112 100644
--- a/src/lj_asm_x86.h
+++ b/src/lj_asm_x86.h
@@ -2502,7 +2502,7 @@ static void asm_head_root_base(ASMState *as)
 }
 
 /* Coalesce or reload BASE register for a side trace. */
-static RegSet asm_head_side_base(ASMState *as, IRIns *irp, RegSet allow)
+static Reg asm_head_side_base(ASMState *as, IRIns *irp)
 {
   IRIns *ir = IR(REF_BASE);
   Reg r = ir->r;
@@ -2511,15 +2511,15 @@ static RegSet asm_head_side_base(ASMState *as, IRIns *irp, RegSet allow)
     if (rset_test(as->modset, r) || irt_ismarked(ir->t))
       ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
     if (irp->r == r) {
-      rset_clear(allow, r);  /* Mark same BASE register as coalesced. */
+      return r;  /* Same BASE register already coalesced. */
     } else if (ra_hasreg(irp->r) && rset_test(as->freeset, irp->r)) {
-      rset_clear(allow, irp->r);
       emit_rr(as, XO_MOV, r, irp->r);  /* Move from coalesced parent reg. */
+      return irp->r;
     } else {
       emit_getgl(as, r, jit_base);  /* Otherwise reload BASE. */
     }
   }
-  return allow;
+  return RID_NONE;
 }
 
 /* -- Tail of trace ------------------------------------------------------- */