[Bug tree-optimization/51890] vectorizer does not recognize intrinsic functions like sqrt
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Jan 18 10:09:00 GMT 2012
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51890
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-18 10:06:07 UTC ---
You need to enable -fno-math-errno as sqrt may set errno which we cannot
vectorize. Then the loop is vectorized (-ffast-math conveniently also
enables -fno-math-errno).
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