gcc/testsuite/gcc.target/powerpc/pr101596-3.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target power10_hw } */
   3 /* { dg-options "-mdejagnu-cpu=power10 -O2 -ftree-vectorize -fno-vect-cost-model" } */
   4
   5 /* Verify the execution goes well with shift count either 32 or 48.  */
   6
   7 #define N 128
   8
   9 typedef signed int si;
  10 typedef signed short sh;
  11 typedef signed long long sll;
  12 typedef unsigned int ui;
  13 typedef unsigned short uh;
  14 typedef unsigned long long ull;
  15
  16 si si_a[N], si_b[N];
  17 ui ui_a[N], ui_b[N];
  18 sh sh_c[N];
  19 uh uh_c[N];
  20
  21 #define TEST(NTYPE, TYPE, WTYPE, CNT)                                          \
  22   void __attribute__ ((noipa)) test_##TYPE##CNT ()                             \
  23   {                                                                            \
  24     for (int i = 0; i < N; i++)                                                \
  25       NTYPE##_c[i] = ((WTYPE) TYPE##_a[i] * (WTYPE) TYPE##_b[i]) >> CNT;       \
  26   }                                                                            \
  27                                                                                \
  28   void __attribute__ ((noipa, optimize ("O1"))) check_##TYPE##CNT ()           \
  29   {                                                                            \
  30     test_##TYPE##CNT ();                                                       \
  31     for (int i = 0; i < N; i++)                                                \
  32       {                                                                        \
  33         NTYPE exp = ((WTYPE) TYPE##_a[i] * (WTYPE) TYPE##_b[i]) >> CNT;        \
  34         if (NTYPE##_c[i] != exp)                                               \
  35           __builtin_abort ();                                                  \
  36       }                                                                        \
  37   }
  38
  39 TEST (sh, si, sll, 32)
  40 TEST (sh, si, sll, 48)
  41 TEST (uh, ui, ull, 32)
  42 TEST (uh, ui, ull, 48)
  43
  44 int
  45 main ()
  46 {
  47
  48   for (int i = 0; i < N; i++)
  49     {
  50       ui_a[i] = si_a[i] = 0x12345678ULL + 0x1000ULL * (i * 3 - 1);
  51       ui_b[i] = si_b[i] = 0x87654321ULL - 0x500000ULL * (i * 5 + 1);
  52     }
  53
  54   check_si32 ();
  55   check_si48 ();
  56   check_ui32 ();
  57   check_ui48 ();
  58 }