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From: "rsandifo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/61926] New: const-anchor optimisation is sensitive to ordering Date: Sun, 27 Jul 2014 09:44:00 -0000 [thread overview] Message-ID: <bug-61926-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61926 Bug ID: 61926 Summary: const-anchor optimisation is sensitive to ordering Product: gcc Version: unknown Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: rsandifo at gcc dot gnu.org Target: mips*-*-* gcc.target/mips/const-anchor-1.c tests that cse uses constant anchors for: g (0x1233ffff, 0x12340001); But this does not work for: g (0x12340001, 0x1233ffff); since the constant that provides the 0x12340000 anchor then comes after the constant that requires it. Maybe this could fixed by doing the anchor optimisation in gcse.c instead, although that probably isn't trivial. Related to PR33699.
next reply other threads:[~2014-07-27 9:44 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-07-27 9:44 rsandifo at gcc dot gnu.org [this message] 2014-07-27 9:51 ` [Bug rtl-optimization/61926] " rsandifo at gcc dot gnu.org
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