case OP_XZERO:
x86_sse_alu_pd_reg_reg (code, X86_SSE_PXOR, ins->dreg, ins->dreg);
break;
+ case OP_XONES:
+ x86_sse_alu_pd_reg_reg (code, X86_SSE_PCMPEQB, ins->dreg, ins->dreg);
+ break;
case OP_FCONV_TO_R8_X:
x86_fst_membase (code, ins->backend.spill_var->inst_basereg, ins->backend.spill_var->inst_offset, TRUE, TRUE);