gcc/testsuite/gcc.target/powerpc/p9-xxbr-3.c

   1 /* { dg-do compile { target lp64 } } */
   2 /* { dg-require-effective-target powerpc_p9vector_ok } */
   3 /* { dg-options "-mdejagnu-cpu=power9 -O2" } */
   4
   5 /* Verify that the XXBR{H,W} instructions are generated if the value is
   6    forced to be in a vector register, and XXBRD is generated all of the
   7    time for register bswap64's.  */
   8
   9 unsigned short
  10 do_bswap16_mem (unsigned short *p)
  11 {
  12   return __builtin_bswap16 (*p);        /* LHBRX.  */
  13 }
  14
  15 unsigned short
  16 do_bswap16_reg (unsigned short a)
  17 {
  18   return __builtin_bswap16 (a);         /* gpr sequences.  */
  19 }
  20
  21 void
  22 do_bswap16_store (unsigned short *p, unsigned short a)
  23 {
  24   *p = __builtin_bswap16 (a);           /* STHBRX.  */
  25 }
  26
  27 unsigned short
  28 do_bswap16_vect (unsigned short a)
  29 {
  30   __asm__ (" # %x0" : "+v" (a));
  31   return __builtin_bswap16 (a);         /* XXBRW.  */
  32 }
  33
  34 unsigned int
  35 do_bswap32_mem (unsigned int *p)
  36 {
  37   return __builtin_bswap32 (*p);        /* LWBRX.  */
  38 }
  39
  40 unsigned int
  41 do_bswap32_reg (unsigned int a)
  42 {
  43   return __builtin_bswap32 (a);         /* gpr sequences.  */
  44 }
  45
  46 void
  47 do_bswap32_store (unsigned int *p, unsigned int a)
  48 {
  49   *p = __builtin_bswap32 (a);           /* STWBRX.  */
  50 }
  51
  52 unsigned int
  53 do_bswap32_vect (unsigned int a)
  54 {
  55   __asm__ (" # %x0" : "+v" (a));
  56   return __builtin_bswap32 (a);         /* XXBRW.  */
  57 }
  58
  59 unsigned long
  60 do_bswap64_mem (unsigned long *p)
  61 {
  62   return __builtin_bswap64 (*p);        /* LDBRX.  */
  63 }
  64
  65 unsigned long
  66 do_bswap64_reg (unsigned long a)
  67 {
  68   return __builtin_bswap64 (a);         /* gpr sequences.  */
  69 }
  70
  71 void
  72 do_bswap64_store (unsigned long *p, unsigned int a)
  73 {
  74   *p = __builtin_bswap64 (a);           /* STDBRX.  */
  75 }
  76
  77 double
  78 do_bswap64_double (unsigned long a)
  79 {
  80   return (double) __builtin_bswap64 (a);        /* XXBRD.  */
  81 }
  82
  83 unsigned long
  84 do_bswap64_vect (unsigned long a)
  85 {
  86   __asm__ (" # %x0" : "+v" (a));        /* XXBRD.  */
  87   return __builtin_bswap64 (a);
  88 }
  89
  90 /* Make sure XXBR{H,W,D} is not generated by default.  */
  91 /* { dg-final { scan-assembler-times "xxbrd"  3  } } */
  92 /* { dg-final { scan-assembler-times "xxbrh"  1  } } */
  93 /* { dg-final { scan-assembler-times "xxbrw"  1  } } */
  94 /* { dg-final { scan-assembler-times "ldbrx"  1  } } */
  95 /* { dg-final { scan-assembler-times "lhbrx"  1  } } */
  96 /* { dg-final { scan-assembler-times "lwbrx"  1  } } */
  97 /* { dg-final { scan-assembler-times "stdbrx" 1  } } */
  98 /* { dg-final { scan-assembler-times "sthbrx" 1  } } */
  99 /* { dg-final { scan-assembler-times "stwbrx" 1  } } */