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[Bug middle-end/65855] missing optimization: triangular numbers
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 27 Apr 2015 12:11:30 +0000
- Subject: [Bug middle-end/65855] missing optimization: triangular numbers
- Auto-submitted: auto-generated
- References: <bug-65855-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65855
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ktietz at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
shorten_compare in the C frontend family performs the (long unsigned int)
n_3(D) != 18446744073709551615 simplification. Nothing in fold-const.c or
match.pd does.