gcc/testsuite/gcc.dg/pr113907-1.c

   1 /* PR middle-end/113907 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2" } */
   4 /* { dg-additional-options "-minline-all-stringops" { target i?86-*-* x86_64-*-* } } */
   5
   6 static inline int
   7 foo (int len, void *indata, void *outdata)
   8 {
   9   if (len < 0 || (len & 7) != 0)
  10     return 0;
  11   if (len != 0 && indata != outdata)
  12     __builtin_memcpy (outdata, indata, len);
  13   return len;
  14 }
  15
  16 static inline int
  17 bar (int len, void *indata, void *outdata)
  18 {
  19   if (len < 0 || (len & 1) != 0)
  20     return 0;
  21   if (len != 0 && indata != outdata)
  22     __builtin_memcpy (outdata, indata, len);
  23   return len;
  24 }
  25
  26 int (*volatile p1) (int, void *, void *) = foo;
  27 int (*volatile p2) (int, void *, void *) = bar;
  28
  29 __attribute__((noipa)) int
  30 baz (int len, void *indata, void *outdata)
  31 {
  32   if ((len & 6) != 0)
  33     bar (len, indata, outdata);
  34   else
  35     foo (len, indata, outdata);
  36 }
  37
  38 struct S { char buf[64]; } s __attribute__((aligned (8)));
  39
  40 int
  41 main ()
  42 {
  43   for (int i = 0; i < 64; ++i)
  44     s.buf[i] = ' ' + i;
  45   p2 (2, s.buf, s.buf + 33);
  46   for (int i = 0; i < 64; ++i)
  47     if (s.buf[i] != ' ' + ((i >= 33 && i < 35) ? i - 33 : i))
  48       __builtin_abort ();
  49 }