gcc-4.9/gcc/testsuite/gcc.target/i386/pr57655.c


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/* { dg-do compile } */
/* { dg-options "-mavx -mvzeroupper -mno-fp-ret-in-387" }

/* { dg-error "x87 register return with x87 disabled" "" { target { ! ia32 } } 8 } */

long double
foo (long double x)
{
  return __builtin_ilogbl (x);
}