title: How to use vector operations in RISC-V Assembly
body: <p>I am trying to exploit vector operations in RISC-V Assembly, in particular I need to compile my source code with arch RV64iV or RV64GV.
  I am using riscv64-unknown-elf- toolchain, with the following parameters:</p>
  
  <p>riscv64-unknown-elf-gcc -o test -march=rv32iv test.s</p>
  
  <p>but I get the following error:</p>
  
  <p>Assembler messages:
  Fatal error: -march=rv32iv: unsupported ISA subset `v'</p>
  
  <p>Thanks</p>