/* { dg-do compile { target { ! ia32 } } } */ /* { dg-options "-O2 -march=skylake-avx512 -mno-avx512vl" } */ typedef __int128 __m128t __attribute__ ((__vector_size__ (16), __may_alias__)); __m128t foo1 (void) { register __int128 xmm16 __asm ("xmm16") = (__int128) -1; /* { dg-error "register specified for 'xmm16'" } */ asm volatile ("" : "+v" (xmm16)); return (__m128t) xmm16; }