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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/113380] New: `(a CMP CST) | (a*a CMP CST1)` is not optimized as decent as with `||` Date: Sat, 13 Jan 2024 17:01:39 +0000 [thread overview] Message-ID: <bug-113380-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113380 Bug ID: 113380 Summary: `(a CMP CST) | (a*a CMP CST1)` is not optimized as decent as with `||` Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: enhancement Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: pinskia at gcc dot gnu.org Target Milestone: --- Take: ``` int foo(int a) { return (a < 4) | (a * a > 7); } int bar(int a) { return (a < 4) | (a * a < 7); } int baz(int a) { return (a > -4) | (a * a > 7); } int qux(int a) { return (a > -4) | (a * a < 7); } ``` This is not as optimized as: ``` int foo(int a) { return (a < 4) || (a * a > 7); } int bar(int a) { return (a < 4) || (a * a < 7); } int baz(int a) { return (a > -4) || (a * a > 7); } int qux(int a) { return (a > -4) || (a * a < 7); } ```
next reply other threads:[~2024-01-13 17:01 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-01-13 17:01 pinskia at gcc dot gnu.org [this message] 2024-01-15 8:37 ` [Bug tree-optimization/113380] " rguenth at gcc dot gnu.org 2024-01-15 9:21 ` pinskia at gcc dot gnu.org
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