[Bug rtl-optimization/24123] Massive performance regression for -ffast-math due to the recip tree pass

[uros at kss-loka dot si]

------- Additional Comments From uros at kss-loka dot si  2005-09-29 14:11 -------
Created an attachment (id=9837)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9837&action=view)
gcc -O2 -ffast-math

Testcase, compile with gcc -O2 -ffast-math. The same problem can be found in
povray-3.6.1/source/fnpovfpu.cpp, POVFPU_RunDefault() when compiled with
-ffast-math.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24123