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

   1 /* { dg-do compile { target { powerpc*-*-* } } } */
   2 /* { dg-skip-if "" { powerpc*-*-darwin* } } */
   3 /* { dg-require-effective-target powerpc_vsx_ok } */
   4 /* { dg-options "-mdejagnu-cpu=power9 -mvsx -O2 -ftree-vectorize -fvect-cost-model=dynamic -fno-unroll-loops -fno-unroll-all-loops" } */
   5
   6 #ifndef SIZE
   7 #define SIZE 1024
   8 #endif
   9
  10 #ifndef ALIGN
  11 #define ALIGN 32
  12 #endif
  13
  14 #define ALIGN_ATTR __attribute__((__aligned__(ALIGN)))
  15
  16 #define DO_BUILTIN(PREFIX, TYPE, CTZ)                                   \
  17 TYPE PREFIX ## _a[SIZE] ALIGN_ATTR;                                     \
  18 TYPE PREFIX ## _b[SIZE] ALIGN_ATTR;                                     \
  19                                                                         \
  20 void                                                                    \
  21 PREFIX ## _ctz (void)                                                   \
  22 {                                                                       \
  23   unsigned long i;                                                      \
  24                                                                         \
  25   for (i = 0; i < SIZE; i++)                                            \
  26     PREFIX ## _a[i] = CTZ (PREFIX ## _b[i]);                            \
  27 }
  28
  29 #if !defined(DO_LONG_LONG) && !defined(DO_LONG) && !defined(DO_INT) && !defined(DO_SHORT) && !defined(DO_CHAR)
  30 #define DO_INT 1
  31 #endif
  32
  33 #if DO_LONG_LONG
  34 /* At the moment, only int is auto vectorized.  */
  35 DO_BUILTIN (sll, long long,             __builtin_ctzll)
  36 DO_BUILTIN (ull, unsigned long long,    __builtin_ctzll)
  37 #endif
  38
  39 #if defined(_ARCH_PPC64) && DO_LONG
  40 DO_BUILTIN (sl,  long,                  __builtin_ctzl)
  41 DO_BUILTIN (ul,  unsigned long,         __builtin_ctzl)
  42 #endif
  43
  44 #if DO_INT
  45 DO_BUILTIN (si,  int,                   __builtin_ctz)
  46 DO_BUILTIN (ui,  unsigned int,          __builtin_ctz)
  47 #endif
  48
  49 #if DO_SHORT
  50 DO_BUILTIN (ss,  short,                 __builtin_ctz)
  51 DO_BUILTIN (us,  unsigned short,        __builtin_ctz)
  52 #endif
  53
  54 #if DO_CHAR
  55 DO_BUILTIN (sc,  signed char,           __builtin_ctz)
  56 DO_BUILTIN (uc,  unsigned char,         __builtin_ctz)
  57 #endif
  58
  59 /* { dg-final { scan-assembler-times "vctzw" 2 } } */
  60 /* { dg-final { scan-assembler-not "cnttzd" } } */
  61 /* { dg-final { scan-assembler-not "cnttzw" } } */