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[Bug middle-end/42694] Compiler could optimize pow (x, 0.75) into sqrt (x) * sqrt (sqrt (x))
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Jan 2010 09:08:00 -0000
- Subject: [Bug middle-end/42694] Compiler could optimize pow (x, 0.75) into sqrt (x) * sqrt (sqrt (x))
- References: <bug-42694-15150@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from rguenth at gcc dot gnu dot org 2010-01-12 09:08 -------
Confirmed and easy to add in the pow expander (expand_builtin_pow).
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu dot
| |org
Severity|normal |enhancement
Status|UNCONFIRMED |NEW
Component|rtl-optimization |middle-end
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-01-12 09:08:00
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42694