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[Bug middle-end/36041] Speed up builtin_popcountll
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 28 Jun 2013 09:29:23 +0000
- Subject: [Bug middle-end/36041] Speed up builtin_popcountll
- Auto-submitted: auto-generated
- References: <bug-36041-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36041
--- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Jun 28 09:28:40 2013
New Revision: 200506
URL: http://gcc.gnu.org/viewcvs?rev=200506&root=gcc&view=rev
Log:
PR middle-end/36041
* libgcc2.c (POPCOUNTCST2, POPCOUNTCST4, POPCOUNTCST8, POPCOUNTCST):
Define.
(__popcountSI2): For __SIZEOF_INT__ > 2 targets use arithmetics
instead of table lookups.
(__popcountDI2): Likewise.
Modified:
trunk/libgcc/ChangeLog
trunk/libgcc/libgcc2.c