Projet_SETI_RISC-V/riscv-gnu-toolchain/gcc/gcc/testsuite/gdc.dg/attr_optimize2.d

// { dg-do compile }

import gcc.attributes;

@optimize(-1)
int non_negative() // { dg-error "argument to .-O. should be a non-negative integer" }
{
    return 0;
}