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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/59822] [4.9 Regression] ice in compute_live_loop_exits with -O3
Date: Wed, 15 Jan 2014 12:17:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59822

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot gnu.org

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
typedef struct rtvec_def *rtvec;
enum machine_mode { VOIDmode };
struct rtvec_def { void *elem[1]; };
extern void *const_tiny_rtx[2];
void
ix86_build_const_vector (enum machine_mode mode, bool vect, 
                         void *value, rtvec v, int n_elt)
{
  int i;
  for (i = 1; i < n_elt; ++i)  
    ((v)->elem[i]) = vect ? value : (const_tiny_rtx[(int) (mode)]);
}


I will have a look.