gcc/testsuite/gcc.dg/pr78526.c

   1 /* PR rtl-optimization/78526 */
   2 /* { dg-do compile { target int128 } } */
   3 /* { dg-options "-O -fno-tree-ccp -fno-tree-sra -g -w" } */
   4 /* { dg-additional-options "-mavx512bw" { target i?86-*-* x86_64-*-* } } */
   5
   6 typedef unsigned U __attribute__ ((vector_size (64)));
   7 typedef unsigned __int128 V __attribute__ ((vector_size (64)));
   8
   9 static inline V
  10 bar (U u, U x, V v)
  11 {
  12   v = (V)(U) { 0, ~0 };
  13   v[x[0]] <<= u[-63];
  14   return v;
  15 }
  16
  17 V
  18 foo (U u)
  19 {
  20   return bar (u, (U) {}, (V) {});
  21 }