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From: "gabravier at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/94920] New: Failure to optimize abs pattern from arithmetic with selected operands based on comparisons with 0 Date: Sat, 02 May 2020 10:53:29 +0000 [thread overview] Message-ID: <bug-94920-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94920 Bug ID: 94920 Summary: Failure to optimize abs pattern from arithmetic with selected operands based on comparisons with 0 Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: gabravier at gmail dot com Target Milestone: --- unsigned f(int x) { return (x >= 0 ? x : 0) + (x <= 0 ? -x : 0); } This can be optimized to `return abs(x)`. LLVM does this transformation, but GCC does not.
next reply other threads:[~2020-05-02 10:53 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-05-02 10:53 gabravier at gmail dot com [this message] 2020-05-04 6:37 ` [Bug tree-optimization/94920] " rguenth at gcc dot gnu.org 2021-08-14 23:58 ` pinskia at gcc dot gnu.org 2022-07-21 21:27 ` cvs-commit at gcc dot gnu.org 2022-07-27 10:04 ` cvs-commit at gcc dot gnu.org 2022-07-27 10:27 ` gabravier at gmail dot com 2022-08-06 8:14 ` paul.hua.gm at gmail dot com 2022-08-25 22:20 ` pinskia at gcc dot gnu.org 2022-08-25 22:23 ` pinskia at gcc dot gnu.org 2022-10-14 17:56 ` danglin at gcc dot gnu.org 2023-03-04 22:35 ` sandra at gcc dot gnu.org 2023-09-17 16:44 ` pinskia at gcc dot gnu.org
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