gcc/testsuite/gcc.target/riscv/attribute-8.c

/* { dg-do compile } */
/* { dg-options "-O -mriscv-attribute -march=rv32i2p0xv5_xabc -mabi=ilp32" } */
int foo()
{
}
/* { dg-final { scan-assembler ".attribute arch, \"rv32i2p0_xv5p0_xabc2p0\"" } } */