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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/111346] New: `X <= MINMAX` pattern is missing :c on the cmp Date: Fri, 08 Sep 2023 21:51:40 +0000 [thread overview] Message-ID: <bug-111346-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111346 Bug ID: 111346 Summary: `X <= MINMAX` pattern is missing :c on the cmp Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: internal-improvement, missed-optimization Severity: enhancement Priority: P3 Component: tree-optimization Assignee: pinskia at gcc dot gnu.org Reporter: pinskia at gcc dot gnu.org Target Milestone: --- The pattern: ``` /* X <= MAX(X, Y) -> true X > MAX(X, Y) -> false X >= MIN(X, Y) -> true X < MIN(X, Y) -> false */ (for minmax (min min max max ) cmp (ge lt le gt ) (simplify (cmp @0 (minmax:c @0 @1)) { constant_boolean_node (cmp == GE_EXPR || cmp == LE_EXPR, type); } )) ``` Is missing :c on the cmp which causes us to miss: MAX(X, Y) >= X -> true etc.
next reply other threads:[~2023-09-08 21:51 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-09-08 21:51 pinskia at gcc dot gnu.org [this message] 2023-09-08 21:52 ` [Bug tree-optimization/111346] " pinskia at gcc dot gnu.org 2023-09-10 20:52 ` pinskia at gcc dot gnu.org 2023-09-10 23:16 ` pinskia at gcc dot gnu.org 2023-09-10 23:18 ` pinskia at gcc dot gnu.org 2023-09-11 2:19 ` cvs-commit at gcc dot gnu.org 2023-09-11 2:20 ` pinskia at gcc dot gnu.org
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