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[Bug middle-end/44382] Slow integer multiply
- 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: 4 Jun 2010 13:21:26 -0000
- Subject: [Bug middle-end/44382] Slow integer multiply
- References: <bug-44382-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from rguenth at gcc dot gnu dot org 2010-06-04 13:21 -------
Yes, reassoc linearizes instead of building a tree (saves one (or was it two?)
registers at best).
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44382