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/* { dg-require-effective-target stdint_types } */

/* { dg-options "-O2 -mcpu=power5" } */

#include <stdint.h>

/* This is a clone of gcc-dg/optimize-bswapsi-1.c, redone to use load and stores

   to test whether lwbrx/stwbrx is generated for normal power systems.  */

#define __const_swab32(x) ((uint32_t)(                                \

        (((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) |            \

        (((uint32_t)(x) & (uint32_t)0x0000ff00UL) <<  8) |            \

        (((uint32_t)(x) & (uint32_t)0x00ff0000UL) >>  8) |            \

        (((uint32_t)(x) & (uint32_t)0xff000000UL) >> 24)))

/* This byte swap implementation is used by the Linux kernel and the

   GNU C library.  */

uint32_t

swap32_a_load (uint32_t *in)

{

  return __const_swab32 (*in);

}

/* The OpenSSH byte swap implementation.  */

uint32_t

swap32_b_load (uint32_t *in)

{

  uint32_t a;

  a = (*in << 16) | (*in >> 16);

  a = ((a & 0x00ff00ff) << 8) | ((a & 0xff00ff00) >> 8);

  return a;

}

void

swap32_a_store (uint32_t *out, uint32_t in)

{

  *out = __const_swab32 (in);

}

/* The OpenSSH byte swap implementation.  */

void

swap32_b_store (uint32_t *out, uint32_t in)

{

  uint32_t a;

  a = (in << 16) | (in >> 16);

  a = ((a & 0x00ff00ff) << 8) | ((a & 0xff00ff00) >> 8);

  *out = a;

}

/* { dg-final { scan-assembler-times "lwbrx" 2 } } */

/* { dg-final { scan-assembler-times "stwbrx" 2 } } */