gcc/testsuite/gcc.target/i386/vecinit-4.c

/* { dg-do compile } */
/* { dg-options "-O2 -msse2" } */

#define vector __attribute__((vector_size(16)))

short a;
vector short f(void) { return (vector short){ a, a, a, a, a, a, a, a }; }
/* { dg-final { scan-assembler-not "sall" } } */
/* { dg-final { scan-assembler-not "%mm" } } */