a.s

#run with:
# as --32 a.S -o a.o && ld -m elf_i386 a.o -o a.out && ./a.out; echo $?

.intel_syntax noprefix

.globl _start
_start:

vpbroadcastd %ymm0, DWORD PTR [p21] # requires AVX2
vpaddd %ymm0, %ymm0, %ymm0          # requires AVX2
vmovd %ebx, %xmm0                   # "only" requires AVX

mov %eax, 1 # __NR_exit
int 0x80

p21: # vpbroadcastd takes a memory address for whatever reason
.long 21