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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/53411] [4.8 Regression] ICE in move_unallocated_pseudos Date: Mon, 13 Aug 2012 11:25:00 -0000 [thread overview] Message-ID: <bug-53411-4-PWEWxq1DO8@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-53411-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53411 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |vmakarov at gcc dot gnu.org --- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-08-13 11:24:31 UTC --- ira itself also removes something, e.g. in rebuild_jump_labels (get_insns ()); if (purge_all_dead_edges ()) delete_unreachable_blocks (); so I wouldn't move that if (delete_trivially_dead_insns (get_insns (), max_reg_num ())) df_analyze (); too early in the function. But perhaps it could be moved before the /* It is not worth to do such improvement when we use a simple allocation because of -O0 usage or because the function is too big. */ if (ira_conflicts_p) find_moveable_pseudos (); hunk. Vlad, what do you think? There is still ira_flattening that tweaks the RTL in between, dunno if it could create trivially dead insns or not. Moving d_t_d_i call before f_m_p call certainly fixes both of the testcases too, haven't bootstrapped/regtested either of the patches yet.
next prev parent reply other threads:[~2012-08-13 11:25 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-05-18 22:03 [Bug c/53411] New: segfault regehr at cs dot utah.edu 2012-05-20 20:04 ` [Bug middle-end/53411] [4.8 Regression] ICE in move_unallocated_pseudos pinskia at gcc dot gnu.org 2012-05-21 10:15 ` jakub at gcc dot gnu.org 2012-05-21 17:48 ` bernds at gcc dot gnu.org 2012-05-21 17:49 ` hjl.tools at gmail dot com 2012-05-25 19:18 ` bernds at gcc dot gnu.org 2012-08-13 10:55 ` jakub at gcc dot gnu.org 2012-08-13 11:07 ` bernds at gcc dot gnu.org 2012-08-13 11:25 ` jakub at gcc dot gnu.org [this message] 2012-08-14 7:43 ` jakub at gcc dot gnu.org
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