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* [Bug target/39241]  New: [4.4 Regression] ICE in subreg_get_info, at rtlanal.c:3104
@ 2009-02-19 12:40 rguenth at gcc dot gnu dot org
  2009-02-19 12:41 ` [Bug target/39241] " rguenth at gcc dot gnu dot org
                   ` (10 more replies)
  0 siblings, 11 replies; 12+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-02-19 12:40 UTC (permalink / raw)
  To: gcc-bugs

ICEs with -O[123s], likely due to the VIEW_CONVERT_EXPR we construct from
*((int*)&f) after inlining.

struct FTprocCompressor {
    float * _amp;
    float * _env;
    float * _as;
};
static inline int f_round(float f)
{
  return *((int*)&f) - 0x4b400000;
}
void process (struct FTprocCompressor *_this, float *attack, float *release,
              float *data, unsigned int fftn)
{
  float ga;
  float gr;
  float att, rel;
  int fftN2 = (fftn+1) >> 1;
  int i;
  for (i = 0; i < fftN2-1; i++)
    {
      att =
((attack[i])<(0.002f)?(0.002f):((attack[i])>(1.0f)?(1.0f):(attack[i])));
      rel =
((release[i])<(att)?(att):((release[i])>(1.0f)?(1.0f):(release[i])));
      ga = _this->_as[f_round(att * (float)(256 -1))];
      gr = _this->_as[f_round(rel * (float)(256 -1))];
      if (_this->_amp[i] > _this->_env[i])
        {
          _this->_env[i] = _this->_env[i] * ga + _this->_amp[i] * (1.0f - ga);
          _this->_env[i] = _this->_env[i] * gr + _this->_amp[i] * (1.0f - gr);
        }
    }
}


-- 
           Summary: [4.4 Regression] ICE in subreg_get_info, at
                    rtlanal.c:3104
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rguenth at gcc dot gnu dot org
GCC target triplet: i?86-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39241


^ permalink raw reply	[flat|nested] 12+ messages in thread
end of thread, other threads:[~2009-02-25 18:55 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-02-19 12:40 [Bug target/39241] New: [4.4 Regression] ICE in subreg_get_info, at rtlanal.c:3104 rguenth at gcc dot gnu dot org
2009-02-19 12:41 ` [Bug target/39241] " rguenth at gcc dot gnu dot org
2009-02-19 13:17 ` jakub at gcc dot gnu dot org
2009-02-19 15:44 ` hjl dot tools at gmail dot com
2009-02-20  1:21 ` [Bug rtl-optimization/39241] " hjl dot tools at gmail dot com
2009-02-20  1:58 ` hjl dot tools at gmail dot com
2009-02-20 17:15 ` hjl dot tools at gmail dot com
2009-02-21 13:08 ` rguenth at gcc dot gnu dot org
2009-02-25 15:52 ` hjl dot tools at gmail dot com
2009-02-25 18:49 ` hjl at gcc dot gnu dot org
2009-02-25 18:55 ` hjl dot tools at gmail dot com
2009-02-25 18:55 ` hjl at gcc dot gnu dot org

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