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_p9vector_ok } */
   4 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
   5 /* { dg-options "-mcpu=power9 -O2 -ftree-vectorize -fvect-cost-model=dynamic -fno-unroll-loops -fno-unroll-all-loops" } */
   6
   7 #ifndef SIZE
   8 #define SIZE 1024
   9 #endif
  10
  11 #ifndef ALIGN
  12 #define ALIGN 32
  13 #endif
  14
  15 #define ALIGN_ATTR __attribute__((__aligned__(ALIGN)))
  16
  17 #define DO_BUILTIN(PREFIX, TYPE, CTZ)                                   \
  18 TYPE PREFIX ## _a[SIZE] ALIGN_ATTR;                                     \
  19 TYPE PREFIX ## _b[SIZE] ALIGN_ATTR;                                     \
  20                                                                         \
  21 void                                                                    \
  22 PREFIX ## _ctz (void)                                                   \
  23 {                                                                       \
  24   unsigned long i;                                                      \
  25                                                                         \
  26   for (i = 0; i < SIZE; i++)                                            \
  27     PREFIX ## _a[i] = CTZ (PREFIX ## _b[i]);                            \
  28 }
  29
  30 #if !defined(DO_LONG_LONG) && !defined(DO_LONG) && !defined(DO_INT) && !defined(DO_SHORT) && !defined(DO_CHAR)
  31 #define DO_INT 1
  32 #endif
  33
  34 #if DO_LONG_LONG
  35 /* At the moment, only int is auto vectorized.  */
  36 DO_BUILTIN (sll, long long,             __builtin_ctzll)
  37 DO_BUILTIN (ull, unsigned long long,    __builtin_ctzll)
  38 #endif
  39
  40 #if defined(_ARCH_PPC64) && DO_LONG
  41 DO_BUILTIN (sl,  long,                  __builtin_ctzl)
  42 DO_BUILTIN (ul,  unsigned long,         __builtin_ctzl)
  43 #endif
  44
  45 #if DO_INT
  46 DO_BUILTIN (si,  int,                   __builtin_ctz)
  47 DO_BUILTIN (ui,  unsigned int,          __builtin_ctz)
  48 #endif
  49
  50 #if DO_SHORT
  51 DO_BUILTIN (ss,  short,                 __builtin_ctz)
  52 DO_BUILTIN (us,  unsigned short,        __builtin_ctz)
  53 #endif
  54
  55 #if DO_CHAR
  56 DO_BUILTIN (sc,  signed char,           __builtin_ctz)
  57 DO_BUILTIN (uc,  unsigned char,         __builtin_ctz)
  58 #endif
  59
  60 /* { dg-final { scan-assembler-times "vctzw" 2 } } */
  61 /* { dg-final { scan-assembler-not "cnttzd" } } */
  62 /* { dg-final { scan-assembler-not "cnttzw" } } */