+#ifdef MONO_ARCH_SIMD_INTRINSICS
+ case OP_EXPAND_I1: {
+ MonoInst *temp;
+ int temp_reg1 = mono_alloc_ireg (cfg);
+ int temp_reg2 = mono_alloc_ireg (cfg);
+ int original_reg = ins->sreg1;
+
+ NEW_INS (cfg, ins, temp, OP_ICONV_TO_U1);
+ temp->sreg1 = original_reg;
+ temp->dreg = temp_reg1;
+
+ NEW_INS (cfg, ins, temp, OP_SHL_IMM);
+ temp->sreg1 = temp_reg1;
+ temp->dreg = temp_reg2;
+ temp->inst_imm = 8;
+
+ NEW_INS (cfg, ins, temp, OP_IOR);
+ temp->sreg1 = temp->dreg = temp_reg2;
+ temp->sreg2 = temp_reg1;
+
+ ins->opcode = OP_EXPAND_I2;
+ ins->sreg1 = temp_reg2;
+ }
+ break;
+#endif