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* [Bug tree-optimization/27872] New: Internal compiler error in verify_loop_structure @ 2006-06-02 8:18 canqun at nudt dot edu dot cn 2006-06-02 8:38 ` [Bug rtl-optimization/27872] " pinskia at gcc dot gnu dot org ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: canqun at nudt dot edu dot cn @ 2006-06-02 8:18 UTC (permalink / raw) To: gcc-bugs [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #1: Type: text/plain, Size: 1270 bytes --] This testcase will cause an internel error when compiled with options "-O3 -fprefetch-loop-arrays" on IA-64 + Linux. SUBROUTINE EBJFT() dimension nmw(140) if(k.eq.0) goto 10 go to 30 10 continue do 20 l=1, 140 20 nmw(l)= 0.0D0 30 continue go to (10)lsn do 40 j=1, 140 nmwj=nmw(j) 40 continue write(*,*) nmwj end The error message is: prefetch-err.f: In function âebjftâ? prefetch-err.f:3: error: edge from 50 to 36 should be marked irreducible prefetch-err.f:3: internal compiler error: in verify_loop_structure, at cfgloop.c:1268 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. -- Summary: Internal compiler error in verify_loop_structure Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: minor Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: canqun at nudt dot edu dot cn GCC build triplet: ia64-unkown-linux GCC host triplet: ia64-unkown-linux GCC target triplet: ia64-unkown-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27872 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/27872] Internal compiler error in verify_loop_structure 2006-06-02 8:18 [Bug tree-optimization/27872] New: Internal compiler error in verify_loop_structure canqun at nudt dot edu dot cn @ 2006-06-02 8:38 ` pinskia at gcc dot gnu dot org 2006-06-03 21:26 ` pinskia at gcc dot gnu dot org ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu dot org @ 2006-06-02 8:38 UTC (permalink / raw) To: gcc-bugs -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|minor |normal Component|tree-optimization |rtl-optimization Keywords| |ice-on-valid-code http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27872 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/27872] Internal compiler error in verify_loop_structure 2006-06-02 8:18 [Bug tree-optimization/27872] New: Internal compiler error in verify_loop_structure canqun at nudt dot edu dot cn 2006-06-02 8:38 ` [Bug rtl-optimization/27872] " pinskia at gcc dot gnu dot org @ 2006-06-03 21:26 ` pinskia at gcc dot gnu dot org 2006-06-05 15:28 ` rakdver at gcc dot gnu dot org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu dot org @ 2006-06-03 21:26 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from pinskia at gcc dot gnu dot org 2006-06-03 21:26 ------- Can you try the patch linked from PR 27735 to see if this fixes this bug also? -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- BugsThisDependsOn| |27735 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27872 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/27872] Internal compiler error in verify_loop_structure 2006-06-02 8:18 [Bug tree-optimization/27872] New: Internal compiler error in verify_loop_structure canqun at nudt dot edu dot cn 2006-06-02 8:38 ` [Bug rtl-optimization/27872] " pinskia at gcc dot gnu dot org 2006-06-03 21:26 ` pinskia at gcc dot gnu dot org @ 2006-06-05 15:28 ` rakdver at gcc dot gnu dot org 2006-06-06 9:37 ` rakdver at gcc dot gnu dot org ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: rakdver at gcc dot gnu dot org @ 2006-06-05 15:28 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from rakdver at gcc dot gnu dot org 2006-06-05 15:19 ------- (In reply to comment #1) > Can you try the patch linked from PR 27735 to see if this fixes this bug also? No, this is unrelated (the ice here is from tree_unroll_loop, never gets to unswitching). -- rakdver at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- BugsThisDependsOn|27735 | AssignedTo|unassigned at gcc dot gnu |rakdver at gcc dot gnu dot |dot org |org Status|UNCONFIRMED |ASSIGNED Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2006-06-05 15:19:46 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27872 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/27872] Internal compiler error in verify_loop_structure 2006-06-02 8:18 [Bug tree-optimization/27872] New: Internal compiler error in verify_loop_structure canqun at nudt dot edu dot cn ` (2 preceding siblings ...) 2006-06-05 15:28 ` rakdver at gcc dot gnu dot org @ 2006-06-06 9:37 ` rakdver at gcc dot gnu dot org 2006-06-08 8:26 ` rakdver at gcc dot gnu dot org 2006-06-08 15:32 ` pinskia at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: rakdver at gcc dot gnu dot org @ 2006-06-06 9:37 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from rakdver at gcc dot gnu dot org 2006-06-06 09:02 ------- Patch: http://gcc.gnu.org/ml/gcc-patches/2006-06/msg00284.html -- rakdver at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- URL| |http://gcc.gnu.org/ml/gcc- | |patches/2006- | |06/msg00284.html Keywords| |patch http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27872 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/27872] Internal compiler error in verify_loop_structure 2006-06-02 8:18 [Bug tree-optimization/27872] New: Internal compiler error in verify_loop_structure canqun at nudt dot edu dot cn ` (3 preceding siblings ...) 2006-06-06 9:37 ` rakdver at gcc dot gnu dot org @ 2006-06-08 8:26 ` rakdver at gcc dot gnu dot org 2006-06-08 15:32 ` pinskia at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: rakdver at gcc dot gnu dot org @ 2006-06-08 8:26 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from rakdver at gcc dot gnu dot org 2006-06-08 08:20 ------- Subject: Bug 27872 Author: rakdver Date: Thu Jun 8 08:19:50 2006 New Revision: 114482 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=114482 Log: PR tree-optimization/27872 * tree-ssa-loop-manip.c (tree_unroll_loop): Set EDGE_IRREDUCIBLE_LOOP flag on the new exit edge of the unrolled loop. Modified: trunk/gcc/ChangeLog trunk/gcc/tree-ssa-loop-manip.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27872 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/27872] Internal compiler error in verify_loop_structure 2006-06-02 8:18 [Bug tree-optimization/27872] New: Internal compiler error in verify_loop_structure canqun at nudt dot edu dot cn ` (4 preceding siblings ...) 2006-06-08 8:26 ` rakdver at gcc dot gnu dot org @ 2006-06-08 15:32 ` pinskia at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu dot org @ 2006-06-08 15:32 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from pinskia at gcc dot gnu dot org 2006-06-08 15:31 ------- Fixed. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED Target Milestone|--- |4.2.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27872 ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2006-06-08 15:31 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2006-06-02 8:18 [Bug tree-optimization/27872] New: Internal compiler error in verify_loop_structure canqun at nudt dot edu dot cn 2006-06-02 8:38 ` [Bug rtl-optimization/27872] " pinskia at gcc dot gnu dot org 2006-06-03 21:26 ` pinskia at gcc dot gnu dot org 2006-06-05 15:28 ` rakdver at gcc dot gnu dot org 2006-06-06 9:37 ` rakdver at gcc dot gnu dot org 2006-06-08 8:26 ` rakdver at gcc dot gnu dot org 2006-06-08 15:32 ` pinskia at gcc dot gnu dot org
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