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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/55281] [4.8 Regression] ICE in  build_int_cst_wide, at tree.c:1217  (with Ofast, ok with O3)
Date: Mon, 12 Nov 2012 11:46:00 -0000	[thread overview]
Message-ID: <bug-55281-4-sjjmhHdR8l@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-55281-4@http.gcc.gnu.org/bugzilla/>


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55281

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-12 11:46:30 UTC ---
Actually, that shorter testcase ICEs for a different reason.
static inline float
bar (float k, float j)
{
  float l = 0.0f;
  if (k > j)
    l = k;
  float t = k / j;
  float v = t * t;
  if (k == 0)
    v = 0.0f;
  if (t > 0.4f)
    v += 0.7;
  if (l != 0)
    v = 1.5 - v;
  return v;
}

void
foo (int *a, int b, float *d, float *e, int *f)
{
  for (int l = 0; l != b; ++l)
    for (int i = 0; i != 8; ++i)
      f[i] = e[i] + bar (a[i], d[i]);
}

is where the original testcase ICEs (-Ofast, both C and C++).


  parent reply	other threads:[~2012-11-12 11:46 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-12 10:06 [Bug tree-optimization/55281] New: " vincenzo.innocente at cern dot ch
2012-11-12 10:33 ` [Bug tree-optimization/55281] " jakub at gcc dot gnu.org
2012-11-12 11:46 ` jakub at gcc dot gnu.org [this message]
2012-11-12 15:12 ` jakub at gcc dot gnu.org
2012-11-12 15:37 ` vincenzo.innocente at cern dot ch
2012-11-12 16:19 ` glisse at gcc dot gnu.org
2012-11-12 16:23 ` jakub at gcc dot gnu.org
2012-11-12 16:39 ` glisse at gcc dot gnu.org
2012-11-13  7:26 ` jakub at gcc dot gnu.org
2012-11-13  7:44 ` jakub at gcc dot gnu.org
2012-11-13  8:04 ` vincenzo.innocente at cern dot ch

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