[Bug tree-optimization/30038] Call to sin(x), cos(x) should be transformed to sincos(x)

[burnus at gcc dot gnu dot org]

------- Comment #17 from burnus at gcc dot gnu dot org  2006-12-17 23:19 -------
Using the patch of PR 30223 (add cbrt, cexpi and sincos to Fortran), I don't
get any speed up (21.95s for fatigue).

Using additionally http://gcc.gnu.org/ml/gcc-patches/2006-12/msg00958.html
(folding of cexp ()) I get >20% speedup: 21.95s --> 17.851s

This is much less than the 28.3s -> 18.3s change at
http://www.suse.de/~gcctest/c++bench/polyhedron/polyhedron-summary.txt-2-0.html
which presumably means I miss at least one patch.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30038