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* [Bug rtl-optimization/57320] New: Shrink-wrapping breaks graph dumping @ 2013-05-17 21:51 steven at gcc dot gnu.org 2013-05-17 21:53 ` [Bug rtl-optimization/57320] Shrink-wrapping leaves unreachable blocks in the CFG steven at gcc dot gnu.org ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: steven at gcc dot gnu.org @ 2013-05-17 21:51 UTC (permalink / raw) To: gcc-bugs 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/57320] Shrink-wrapping leaves unreachable blocks in the CFG 2013-05-17 21:51 [Bug rtl-optimization/57320] New: Shrink-wrapping breaks graph dumping steven at gcc dot gnu.org @ 2013-05-17 21:53 ` steven at gcc dot gnu.org 2014-01-07 11:53 ` [Bug rtl-optimization/57320] [4.9 Regression] " rguenth at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: steven at gcc dot gnu.org @ 2013-05-17 21:53 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57320 Steven Bosscher <steven at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2013-05-17 CC| |bernds at gcc dot gnu.org Summary|Shrink-wrapping breaks |Shrink-wrapping leaves |graph dumping |unreachable blocks in the | |CFG Ever confirmed|0 |1 --- Comment #1 from Steven Bosscher <steven at gcc dot gnu.org> --- Adding Bernd to CC as author of the shrink-wrapping code ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/57320] [4.9 Regression] Shrink-wrapping leaves unreachable blocks in the CFG 2013-05-17 21:51 [Bug rtl-optimization/57320] New: Shrink-wrapping breaks graph dumping steven at gcc dot gnu.org 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 ` 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 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu.org @ 2014-01-07 11:53 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57320 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |4.9.0 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/57320] [4.9 Regression] Shrink-wrapping leaves unreachable blocks in the CFG 2013-05-17 21:51 [Bug rtl-optimization/57320] New: Shrink-wrapping breaks graph dumping steven at gcc dot gnu.org 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 3 siblings, 0 replies; 5+ messages in thread From: steven at gcc dot gnu.org @ 2014-02-19 22:36 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57320 --- Comment #3 from Steven Bosscher <steven at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #2) > This has been fixed by r204211 on the trunk, any reason to keep this PR open? Eh, really? That commit is supposed to change nothing except the graph dumper. > Note that Steven's patch has been approved, but never committed: > http://gcc.gnu.org/ml/gcc-patches/2013-05/msg01020.html That patch is still necessary. I've simply forgotten about it. I don't have access to a machine to commit it this or next week. Much appreciated if you could take care of it! ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug rtl-optimization/57320] [4.9 Regression] Shrink-wrapping leaves unreachable blocks in the CFG 2013-05-17 21:51 [Bug rtl-optimization/57320] New: Shrink-wrapping breaks graph dumping steven at gcc dot gnu.org ` (2 preceding siblings ...) 2014-02-19 22:36 ` steven at gcc dot gnu.org @ 2014-03-13 19:13 ` jakub at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: jakub at gcc dot gnu.org @ 2014-03-13 19:13 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57320 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Should be fixed by Steven's patch. ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2014-03-13 19:13 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-05-17 21:51 [Bug rtl-optimization/57320] New: Shrink-wrapping breaks graph dumping steven at gcc dot gnu.org 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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