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From: "steven at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/57320] New: Shrink-wrapping breaks graph dumping Date: Fri, 17 May 2013 21:51:00 -0000 [thread overview] Message-ID: <bug-57320-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57320 Bug ID: 57320 Summary: Shrink-wrapping breaks graph dumping Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: steven at gcc dot gnu.org Compiling gcc.target/i386/pad-10.c with: $ ./xgcc -B. -O2 -fomit-frame-pointer -march=atom pad-10.c \ -fdump-rtl-pro_and_epilogue-graph gives: pad-10.c: In function 'foo2': pad-10.c:19:1: internal compiler error: in pre_and_rev_post_order_compute, at cfganal.c:869 } ^ 0x61dbaa pre_and_rev_post_order_compute(int*, int*, bool) ../../trunk/gcc/cfganal.c:869 0xd28d21 draw_cfg_nodes_no_loops ../../trunk/gcc/graph.c:183 0xd28d21 draw_cfg_nodes ../../trunk/gcc/graph.c:265 0xd28d21 print_graph_cfg(char const*, function*) ../../trunk/gcc/graph.c:306 This happens because shrink-wrapping leaves unreachable blocks in the CFG. For a more detailed analysis see: http://gcc.gnu.org/ml/gcc-patches/2013-05/msg01016.html
next reply other threads:[~2013-05-17 21:51 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-05-17 21:51 steven at gcc dot gnu.org [this message] 2013-05-17 21:53 ` [Bug rtl-optimization/57320] Shrink-wrapping leaves unreachable blocks in the CFG steven at gcc dot gnu.org 2014-01-07 11:53 ` [Bug rtl-optimization/57320] [4.9 Regression] " rguenth at gcc dot gnu.org 2014-02-19 22:36 ` steven at gcc dot gnu.org 2014-03-13 19:13 ` jakub at gcc dot gnu.org
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