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From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/18546] New: tree vectorizer does not understand RETURN_DECL Date: Thu, 18 Nov 2004 16:11:00 -0000 [thread overview] Message-ID: <20041118161104.18546.pinskia@gcc.gnu.org> (raw) Compile the following with the C and C++ front-end and you will get different assembly, the C front- end does not do NVR at all while the C++ front-end will change the a decl to be the return_decl before so we the vectorizer cannot do the vectorization because it does not hanndle RETURN_DECLs at all. struct A { int x[4]; }; struct A foo() { struct A a; for (int i=0; i<4; ++i) a.x[i] = 0; return a; } -- Summary: tree vectorizer does not understand RETURN_DECL Product: gcc Version: 4.0.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: enhancement Priority: P2 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: pinskia at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18546
next reply other threads:[~2004-11-18 16:11 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2004-11-18 16:11 pinskia at gcc dot gnu dot org [this message] 2004-11-20 18:41 ` [Bug tree-optimization/18546] " pinskia at gcc dot gnu dot org 2005-03-04 15:11 ` cjb at mrao dot cam dot ac dot uk 2005-03-04 15:19 ` pinskia at gcc dot gnu dot org 2005-03-05 15:53 ` cjb at mrao dot cam dot ac dot uk 2005-03-05 17:03 ` pinskia at gcc dot gnu dot org 2005-03-07 23:21 ` pinskia at gcc dot gnu dot org
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