[Bug lto/56570] ICE when streaming a TREE_BLOCK

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56570



--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> 2013-03-08 
12:15:13 UTC ---

typedef struct { unsigned long long w[4]; } UINT256;

static void add256 (UINT256 x, UINT256 y, UINT256 * pz)

{

    UINT256 z;

    z.w[0] = x.w[0] + y.w[0];

    z.w[1] = x.w[1] + y.w[1];

    z.w[2] = x.w[2] + y.w[2];

    z.w[3] = x.w[3] + y.w[3];

    *pz = z;

}

static inline void bid128_ext_fma ()

{

  UINT256 C4;

  UINT256 R256;

  add256 (C4, R256, &R256);

  nr_digits256 (R256);

}

void __bid128_fma ()

{

  bid128_ext_fma ();

}





ICEs at -O2 -g -m32 with the extra checking.