[Bug target/37390] wrong-code on i486-linux-gnu with -O[12], -O0 works

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2008-09-05 22:54 -------
I think this is really PR 323.  Using -ffloat-store gives the correct answer.
  D.2639 = pow ((double) a, (double) b + 1.0e+0);
  num = (ull) D.2639 - 1.0e+0;

So I don't know what else to say, except -ffloat-store or use -mfpmath=sse.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37390