Merge branch 'master' into v2.1

src/lj_asm.c

@@ -2342,7 +2342,7 @@ void lj_asm_trace(jit_State *J, GCtrace *T)
   /* Ensure an initialized instruction beyond the last one for HIOP checks. */
   /* This also allows one RENAME to be added without reallocating curfinal. */
   as->orignins = lj_ir_nextins(J);
-  J->cur.ir[as->orignins].o = IR_NOP;
+  lj_ir_nop(&J->cur.ir[as->orignins]);
 
   /* Setup initial state. Copy some fields to reduce indirections. */
   as->J = J;