[Bug target/15290] New: __float128 failed to pass to function properly

["hjl at lucon dot org" <gcc-bugzilla at gcc dot gnu dot org>]

[hjl@gnu-20 float128]$ cat q.c
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <endian.h>

void
foo (__float128 x)
{
  union quad { unsigned char c[16]; __float128 qd; } q;
  q.qd = x;
  unsigned char two [16];

  memset (two, 0, sizeof two);
#if __BYTE_ORDER == __BIG_ENDIAN
  two [0] = 0x40;
#endif

#if __BYTE_ORDER == __LITTLE_ENDIAN
  two [15] = 0x40;
#endif
  if (memcmp (two, q.c, sizeof two) != 0)
    abort ();
}

int
main ()
{
  foo (2);
  return 0;
}
[hjl@gnu-20 float128]$ /usr/gcc-3.4/bin/gcc q.c
[hjl@gnu-20 float128]$ ./a.out
Aborted
[hjl@gnu-20 float128]$

-- 
           Summary: __float128 failed to pass to function properly
           Product: gcc
           Version: 3.4.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl at lucon dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: x86_64-pc-linux-gnu
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15290