gcc/testsuite/gcc.target/i386/pr77541.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target int128 } */
   3 /* { dg-options "-O2 -Wno-psabi" } */
   4
   5 #define MAGIC 0x0706050403020100
   6
   7 typedef unsigned long long u64;
   8 typedef unsigned __int128 v64u128 __attribute__ ((vector_size (64)));
   9
  10 v64u128 __attribute__ ((noinline, noclone))
  11 foo (u64 x1, u64 x2, u64 x3, u64 x4, v64u128 x5)
  12 {
  13   (void)x1, (void)x2;
  14   x4 >>= x4 & 63;
  15   return x3 + x4 + x5;
  16 }
  17
  18 int
  19 main ()
  20 {
  21   v64u128 x = foo (0, 0, 0, MAGIC, (v64u128) {});
  22   if (x[0] != MAGIC || x[1] != MAGIC || x[2] != MAGIC || x[3] != MAGIC)
  23     __builtin_abort();
  24   return 0;
  25 }