1 files changed, 17 insertions, 10 deletions

diff --git a/src/lj_asm_mips.h b/src/lj_asm_mips.h
index b02da663..d4e40c91 100644
--- a/src/lj_asm_mips.h
+++ b/src/lj_asm_mips.h
@@ -1207,22 +1207,29 @@ nolo:
 static void asm_uref(ASMState *as, IRIns *ir)
 {
   Reg dest = ra_dest(as, ir, RSET_GPR);
-  if (irref_isk(ir->op1)) {
+  int guarded = (irt_t(ir->t) & (IRT_GUARD|IRT_TYPE)) == (IRT_GUARD|IRT_PGC);
+  if (irref_isk(ir->op1) && !guarded) {
     GCfunc *fn = ir_kfunc(IR(ir->op1));
     MRef *v = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.v;
     emit_lsptr(as, MIPSI_AL, dest, v, RSET_GPR);
   } else {
-    Reg uv = ra_scratch(as, RSET_GPR);
-    Reg func = ra_alloc1(as, ir->op1, RSET_GPR);
-    if (ir->o == IR_UREFC) {
-      asm_guard(as, MIPSI_BEQ, RID_TMP, RID_ZERO);
-      emit_tsi(as, MIPSI_AADDIU, dest, uv, (int32_t)offsetof(GCupval, tv));
-      emit_tsi(as, MIPSI_LBU, RID_TMP, uv, (int32_t)offsetof(GCupval, closed));
+    if (guarded)
+      asm_guard(as, ir->o == IR_UREFC ? MIPSI_BEQ : MIPSI_BNE, RID_TMP, RID_ZERO);
+    if (ir->o == IR_UREFC)
+      emit_tsi(as, MIPSI_AADDIU, dest, dest, (int32_t)offsetof(GCupval, tv));
+    else
+      emit_tsi(as, MIPSI_AL, dest, dest, (int32_t)offsetof(GCupval, v));
+    if (guarded)
+      emit_tsi(as, MIPSI_LBU, RID_TMP, dest, (int32_t)offsetof(GCupval, closed));
+    if (irref_isk(ir->op1)) {
+      GCfunc *fn = ir_kfunc(IR(ir->op1));
+      GCobj *o = gcref(fn->l.uvptr[(ir->op2 >> 8)]);
+      emit_loada(as, dest, o);
     } else {
-      emit_tsi(as, MIPSI_AL, dest, uv, (int32_t)offsetof(GCupval, v));
+      emit_tsi(as, MIPSI_AL, dest, ra_alloc1(as, ir->op1, RSET_GPR),
+               (int32_t)offsetof(GCfuncL, uvptr) +
+               (int32_t)sizeof(MRef) * (int32_t)(ir->op2 >> 8));
     }
-    emit_tsi(as, MIPSI_AL, uv, func, (int32_t)offsetof(GCfuncL, uvptr) +
-             (int32_t)sizeof(MRef) * (int32_t)(ir->op2 >> 8));
   }
 }