gcc/testsuite/gcc.dg/pr98287.c

   1 /* PR tree-optimization/98287 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fno-tree-ccp -fno-tree-forwprop -Wno-psabi -w" } */
   4
   5 typedef unsigned long __attribute__((__vector_size__ (8))) V;
   6 V v;
   7
   8 static __attribute__((noinline, noclone)) V
   9 bar (unsigned short s)
  10 {
  11   return v >> s << s | v >> s >> 63;
  12 }
  13
  14 unsigned long
  15 foo (void)
  16 {
  17   V x = bar (1);
  18   return x[0];
  19 }