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From: "reichelt at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug optimization/11269] New: [tree-ssa] wrong-code Date: Fri, 20 Jun 2003 18:35:00 -0000 [thread overview] Message-ID: <20030620183319.11269.reichelt@gcc.gnu.org> (raw) PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11269 Summary: [tree-ssa] wrong-code Product: gcc Version: unknown Status: UNCONFIRMED Keywords: wrong-code Severity: normal Priority: P1 Component: optimization AssignedTo: unassigned@gcc.gnu.org ReportedBy: reichelt@gcc.gnu.org CC: dnovillo@gcc.gnu.org,gcc-bugs@gcc.gnu.org GCC host triplet: i686-pc-linux-gnu The following code snippet (inspired by PR6189) should return "1", but does not, if optimization on the tree-ssa-branch is turned on. --------------------------------------------------------------- struct A { int x[2]; int& GetFirst() { return x[0]; } }; A foo () { A a; a.GetFirst()=1; return a; } int main() { A b=foo(); return b.GetFirst(); } --------------------------------------------------------------- Without optimization I get the return value "1", with "-O" or "-O2" I get "192" and with "-O3" I get "0". This is a regression w.r.t. mainline.
next reply other threads:[~2003-06-20 18:35 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-06-20 18:35 reichelt at gcc dot gnu dot org [this message] 2003-06-21 1:31 ` [Bug optimization/11269] " bangerth at dealii dot org 2003-06-21 2:23 ` dhazeghi at yahoo dot com 2003-07-06 22:17 ` steven at gcc dot gnu dot org 2003-07-07 11:13 ` reichelt at gcc dot gnu dot org 2003-08-08 9:37 ` reichelt at gcc dot gnu dot org 2003-08-15 3:10 ` pinskia at gcc dot gnu dot org 2003-08-20 3:32 ` pinskia at gcc dot gnu dot org 2003-09-07 13:10 ` steven at gcc dot gnu dot org 2003-09-14 16:40 ` dnovillo at gcc dot gnu dot org 2003-09-14 20:26 ` steven at gcc dot gnu dot org 2003-10-22 2:41 ` jason at gcc dot gnu dot org 2003-11-17 0:31 ` cvs-commit at gcc dot gnu dot org 2003-11-17 0:34 ` jason at gcc dot gnu dot org
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