[Bug target/39856] [4.4 Regression] ICE in subst_stack_regs_pat, at reg-stack.c:1386

[jakub at gcc dot gnu dot org]

------- Comment #3 from jakub at gcc dot gnu dot org  2009-04-23 08:45 -------
Simplified testcase (ICEs with both C and C++ FEs):

extern double pow (double, double);
extern double fabs (double);
void foo (double *);
void bar (double *);

static double
baz (double x, double e)
{
  if ((int) e == 1)
    return x;
  return pow (x, e);
}

void
test (double *x, double *y)
{
  double P[3], r;

  bar (P);
  if (P[2] != 0)
    baz (fabs (P[2]), y[2]);
  if (fabs (P[0]) > fabs (P[1]))
    r = baz (fabs (P[1] / P[0]), y[0]);
  if (P[2])
    P[2] *= (1 + r);
  foo (x);
}


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39856