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From: "sebpop at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/38431] [graphite] several ICEs with CP2K (summary) Date: Tue, 13 Jan 2009 21:57:00 -0000 [thread overview] Message-ID: <20090113215709.21552.qmail@sourceware.org> (raw) In-Reply-To: <bug-38431-6642@http.gcc.gnu.org/bugzilla/> ------- Comment #30 from sebpop at gmail dot com 2009-01-13 21:57 ------- Subject: Re: [graphite] several ICEs with CP2K (summary) Thanks for the clarification, I managed to reproduce the fail. The problem comes from the fact that we do not generate code for a scalar reduction that is not detected as a scalar reduction with the variable connection$dim$1$lbound. In the attached output from debug_loops (3) I selected the region of code containing both the original loops: loop_3 and loop_4 and the code generated by graphite with -fgraphite-identity: loop_22, loop_23. In loop_22 the computation on connection$dim$1$lbound disappears. I wonder what this variable stands for: it is not used elsewhere in the debug_loops (3) output of change_bond_length function, and I suspect that this is a global variable whose value is needed elsewhere outside the change_bond_length function. The bug is in the detection of scalar reductions. Sebastian ------- Comment #31 from sebpop at gmail dot com 2009-01-13 21:57 ------- Created an attachment (id=17095) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17095&action=view) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38431
next prev parent reply other threads:[~2009-01-13 21:57 UTC|newest] Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top 2008-12-06 19:31 [Bug middle-end/38431] New: [graphite] several ICEs with CP2K jv244 at cam dot ac dot uk 2008-12-09 8:44 ` [Bug middle-end/38431] " jv244 at cam dot ac dot uk 2008-12-09 19:43 ` jv244 at cam dot ac dot uk 2008-12-09 20:12 ` [Bug middle-end/38431] [graphite] several ICEs with CP2K (summery) grosser at gcc dot gnu dot org 2008-12-09 20:26 ` grosser at gcc dot gnu dot org 2008-12-09 21:03 ` jv244 at cam dot ac dot uk 2008-12-09 21:12 ` jv244 at cam dot ac dot uk 2008-12-10 22:34 ` jv244 at cam dot ac dot uk 2008-12-11 19:20 ` jv244 at cam dot ac dot uk 2008-12-11 20:20 ` [Bug middle-end/38431] [graphite] several ICEs with CP2K (summary) jv244 at cam dot ac dot uk 2008-12-11 21:42 ` jv244 at cam dot ac dot uk 2008-12-13 8:41 ` jv244 at cam dot ac dot uk 2008-12-14 15:56 ` dominiq at lps dot ens dot fr 2008-12-15 17:32 ` jv244 at cam dot ac dot uk 2008-12-15 19:08 ` jv244 at cam dot ac dot uk 2008-12-15 19:45 ` jv244 at cam dot ac dot uk 2009-01-07 19:07 ` jv244 at cam dot ac dot uk 2009-01-07 19:23 ` sebpop at gmail dot com 2009-01-07 20:52 ` jv244 at cam dot ac dot uk 2009-01-08 17:11 ` spop at gcc dot gnu dot org 2009-01-08 19:31 ` jv244 at cam dot ac dot uk 2009-01-08 19:53 ` sebpop at gmail dot com 2009-01-09 5:38 ` jv244 at cam dot ac dot uk 2009-01-09 6:16 ` jv244 at cam dot ac dot uk 2009-01-09 6:18 ` jv244 at cam dot ac dot uk 2009-01-11 12:30 ` jv244 at cam dot ac dot uk 2009-01-11 12:59 ` jv244 at cam dot ac dot uk 2009-01-11 13:42 ` sebpop at gmail dot com 2009-01-13 19:52 ` Sebastian Pop 2009-01-13 19:53 ` sebpop at gmail dot com 2009-01-13 20:33 ` jv244 at cam dot ac dot uk 2009-01-13 21:57 ` Sebastian Pop 2009-01-13 21:57 ` sebpop at gmail dot com [this message] 2009-01-14 6:49 ` jv244 at cam dot ac dot uk 2009-01-14 10:20 ` Sebastian Pop 2009-01-14 10:20 ` sebpop at gmail dot com 2009-01-14 10:51 ` jv244 at cam dot ac dot uk 2009-01-14 12:09 ` jv244 at cam dot ac dot uk 2009-01-14 14:35 ` spop at gcc dot gnu dot org 2009-01-14 14:36 ` spop at gcc dot gnu dot org 2009-01-14 21:11 ` spop at gcc dot gnu dot org
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