1 files changed, 8 insertions, 0 deletions
diff --git a/src/lj_asm.c b/src/lj_asm.c
index 9dae2707..fae5b241 100644
--- a/src/lj_asm.c
+++ b/src/lj_asm.c
@@ -1145,6 +1145,9 @@ static void asm_gcstep(ASMState *as, IRIns *ir)
 /* -- Buffer operations --------------------------------------------------- */
 static void asm_tvptr(ASMState *as, Reg dest, IRRef ref, MSize mode);
+#if LJ_HASBUFFER
+static void asm_bufhdr_write(ASMState *as, Reg sb);
+#endif
 static void asm_bufhdr(ASMState *as, IRIns *ir)
 {
@@ -1172,6 +1175,11 @@ static void asm_bufhdr(ASMState *as, IRIns *ir)
    }
    break;
    }
+#if LJ_HASBUFFER
+  case IRBUFHDR_WRITE:
+    asm_bufhdr_write(as, sb);
+    break;
+#endif
  default: lj_assertA(0, "bad BUFHDR op2 %d", ir->op2); break;
  }
 #if LJ_TARGET_X86ORX64