[Bug rtl-optimization/48496] [4.7 Regression] 'asm' operand requires impossible reload in libffi/src/ia64/ffi.c

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48496

--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-10 
11:18:32 UTC ---
Bootstrap/test seems to work for Andreas (and for my own internal testing) but
still no results from HJ on gcc-testresults.

Still the testcase is broken, reproducible with a bare cross to ia64-linux
and just -O2 (-fexceptions not needed).  More reduced testcase:

typedef struct { unsigned long x[2]; } fpreg;
unsigned long 
ffi_call(long i, void **avalue, fpreg *fpr)
{
  asm ("stf.spill %0 = %1%P0" 
       : "=m" (*fpr) : "f"(*(double *)avalue[i]));;
  return *(unsigned long *)avalue[i];
}