Viewing file:  bswap-run.c (2.56 KB) -rw-r--r--
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/* { dg-do run { target powerpc*-*-* } } */
/* { dg-options "-O2 -std=gnu99" } */
extern void abort (void);
static unsigned char bytes[] = { 0, 1, 2, 0x80, 0xff };
unsigned short b16a (unsigned short *p) { return __builtin_bswap16 (*p); }
void b16b (unsigned short *p, unsigned short a) { *p = __builtin_bswap16 (a); }
int b16c (unsigned short a) { return __builtin_bswap16 (a); }
unsigned int b32a (unsigned int *p) { return __builtin_bswap32 (*p); }
void b32b (unsigned int *p, unsigned int a) { *p = __builtin_bswap32 (a); }
static unsigned int b32c (unsigned int a) { return __builtin_bswap32 (a); }
unsigned long long b64a (unsigned long long *p) { return __builtin_bswap64 (*p); }
void b64b (unsigned long long *p, unsigned long long a) { *p = __builtin_bswap64 (a); }
unsigned long long b64c (unsigned long long a) { return __builtin_bswap64 (a); }
int
main (void)
{
unsigned i1, i2, i3, i4, i5;
unsigned b1, b2, b3, b4, b5;
unsigned short b16_inp, b16_exp, b16_var;
unsigned int b32_inp, b32_exp, b32_var;
unsigned long long b64_inp, b64_exp, b64_var;
for (i1 = 0; i1 < sizeof (bytes); i1++)
{
b1 = bytes[i1];
for (i2 = 0; i2 < sizeof (bytes); i2++)
{
b2 = bytes[i2];
b16_inp = (b1 << 8) | b2;
b16_exp = (b2 << 8) | b1;
if (b16a (&b16_inp) != b16_exp)
abort ();
b16b (&b16_var, b16_inp);
if (b16_var != b16_exp)
abort ();
if (b16c (b16_inp) != b16_exp)
abort ();
for (i3 = 0; i3 < sizeof (bytes); i3++)
{
b3 = bytes[i3];
for (i4 = 0; i4 < sizeof (bytes); i4++)
{
b4 = bytes[i4];
b32_inp = (b1 << 24) | (b2 << 16) | (b3 << 8) | b4;
b32_exp = (b4 << 24) | (b3 << 16) | (b2 << 8) | b1;
if (b32a (&b32_inp) != b32_exp)
abort ();
b32b (&b32_var, b32_inp);
if (b32_var != b32_exp)
abort ();
if (b32c (b32_inp) != b32_exp)
abort ();
for (i5 = 0; i5 < sizeof (bytes); i5++)
{
b5 = bytes[i5];
b64_inp = (((unsigned long long)b32_inp) << 32) | b5;
b64_exp = (((unsigned long long)b5) << 56) | b32_exp;
if (b64a (&b64_inp) != b64_exp)
abort ();
b64b (&b64_var, b64_inp);
if (b64_var != b64_exp)
abort ();
if (b64c (b64_inp) != b64_exp)
abort ();
b64_inp = (((unsigned long long)b5) << 56) | b32_inp;
b64_exp = (((unsigned long long)b32_exp) << 32) | b5;
if (b64a (&b64_inp) != b64_exp)
abort ();
b64b (&b64_var, b64_inp);
if (b64_var != b64_exp)
abort ();
if (b64c (b64_inp) != b64_exp)
abort ();
}
}
}
}
}
return 0;
}
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