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[Bug libstdc++/11706] std::pow(T, int) implementation pessimizes code
- From: "gdr at integrable-solutions dot net" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 29 Sep 2003 15:05:18 -0000
- Subject: [Bug libstdc++/11706] std::pow(T, int) implementation pessimizes code
- References: <20030729120327.11706.rguenth@tat.physik.uni-tuebingen.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11706
------- Additional Comments From gdr at integrable-solutions dot net 2003-09-29 15:05 -------
Subject: Re: std::pow(T, int) implementation pessimizes code
"rguenth at tat dot physik dot uni-tuebingen dot de" <gcc-bugzilla@gcc.gnu.org> writes:
| Why exactly should cmath not use ::pow
we should not use ::pow because there is no ::pow in <cmath> -- at
least in principle.
| (or __builtin_pow())?
I remember Roger supplied builtins for various T in pow(T, int).
They should help.
-- Gaby