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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [g++.dg/] [tree-ssa/] [pr32327.C] - Rev 841
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// { dg-do run { target { { i?86-*-* x86_64-*-* } && ilp32 } } }
// { dg-options "-O2" }
typedef unsigned long long uint64;
typedef __SIZE_TYPE__ size_t;
extern "C" {
extern void *memcpy (void *__restrict __dest,
__const void *__restrict __src, size_t __n) /*throw ()*/;
extern void abort (void);
}
extern void foo (void* p);
inline uint64
ghtonll(uint64 x)
{
// __r is allocated the same stack slot as dest below
union { unsigned long long int __ll;
unsigned long int __l[2]; } __w, __r;
__w.__ll = x;
__r.__l[0] = (
{
register unsigned int __v;
__asm__ __volatile__ ("bswap %0" : "=r" (__v) :
"0" ((unsigned int) (__w.__l[1])));
__v; });
__r.__l[1] = (
{
register unsigned int __v;
__asm__ __volatile__ ("bswap %0" : "=r" (__v) :
"0" ((unsigned int) (__w.__l[0])));
__v; });
return __r.__ll;
}
inline uint64
double_2_uint64 (const double *source)
{
uint64 dest; // allocated the same stack slot as __r above
memcpy(&dest, source, sizeof(dest));
return dest;
}
inline void
KeyFromUint64(uint64 fp) {
uint64 norder;
norder = ghtonll (fp);
foo((char*)(&norder));
}
void
KeyFromDouble(double x) {
uint64 n = double_2_uint64 (&x);
if (n >= 42) {
n += 1;
}
KeyFromUint64(n);
}
#define NUM 0x0123456789abcdefll
#define EXPECTED 0xe0bc9a7856347243ll
void foo (void *x)
{
if (*((uint64 *)x) != (uint64) EXPECTED)
abort ();
}
int main ()
{
if (sizeof (double) != sizeof (uint64))
return 0;
if (sizeof (uint64) == sizeof (unsigned long int))
return 0;
KeyFromDouble ((double)NUM);
return 0;
}
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