[Bug tree-optimization/37853] [4.4 Regression] gcc.dg/vect/vect-67.c failing since PRE rewrite

2008-12-07 Thread rguenth at gcc dot gnu dot org 


--- Comment #6 from rguenth at gcc dot gnu dot org  2008-12-07 12:25 ---


*** This bug has been marked as a duplicate of 36792 ***


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rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution||DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37853

[Bug tree-optimization/37853] [4.4 Regression] gcc.dg/vect/vect-67.c failing since PRE rewrite

2008-12-06 Thread dominiq at lps dot ens dot fr 


--- Comment #2 from dominiq at lps dot ens dot fr  2008-12-06 23:56 ---
The output of -ftree-vectorizer-verbose=6 gives:

/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:30: note: not
vectorized: too many BBs in loop.
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:17: note: Detected
interleaving ia[i_91][1][8] and ia[i_91][1][9]
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:17: note: Detected
interleaving ia[i_91][1][8] and ia[i_91][1][10]
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:17: note: Detected
interleaving ia[i_91][1][8] and ia[i_91][1][11]
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:17: note: Detected
interleaving ia[i_91][1][8] and ia[i_91][1][12]
...
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:17: note: Detected
interleaving ia[i_91][1][20] and ia[i_91][1][21]
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:17: note: Detected
interleaving ia[i_91][1][20] and ia[i_91][1][22]
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:17: note: Detected
interleaving ia[i_91][1][20] and ia[i_91][1][23]
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:17: note: Detected
interleaving ia[i_91][1][21] and ia[i_91][1][22]
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:17: note: Detected
interleaving ia[i_91][1][21] and ia[i_91][1][23]
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:17: note: Detected
interleaving ia[i_91][1][22] and ia[i_91][1][23]
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:17: note: not
vectorized: complicated access pattern.
/opt/gcc/_gcc_clean/gcc/testsuite/gcc.dg/vect/vect-67.c:9: note: vectorized 0
loops in function.

The failure appeared between revisions 137614 (passed) and 137631, most of them
are branches or FE patches but 137620 (IPA-unlikely?) and 137631.

Compiling with -fno-tree-pre does not help.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37853

[Bug tree-optimization/37853] [4.4 Regression] gcc.dg/vect/vect-67.c failing since PRE rewrite

2008-12-06 Thread dominiq at lps dot ens dot fr 


--- Comment #3 from dominiq at lps dot ens dot fr  2008-12-07 00:11 ---
Fails also on 

x86_64-unknown-linux-gnu:
http://gcc.gnu.org/ml/gcc-testresults/2008-12/msg00519.html
ia64-unknown-linux-gnu:
http://gcc.gnu.org/ml/gcc-testresults/2008-12/msg00518.html,
powerpc64-suse-linux-gnu:
http://gcc.gnu.org/ml/gcc-testresults/2008-12/msg00517.html,
i686-pc-linux-gnu: http://gcc.gnu.org/ml/gcc-testresults/2008-12/msg00515.html
powerpc-unknown-eabisim:
http://gcc.gnu.org/ml/gcc-testresults/2008-12/msg00503.html
...


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37853

[Bug tree-optimization/37853] [4.4 Regression] gcc.dg/vect/vect-67.c failing since PRE rewrite

2008-12-06 Thread dominiq at lps dot ens dot fr 


--- Comment #4 from dominiq at lps dot ens dot fr  2008-12-07 00:17 ---
The failure appeared at revision 137631 (not in r137630, see
http://gcc.gnu.org/ml/gcc-testresults/2008-07/msg01011.html).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37853

[Bug tree-optimization/37853] [4.4 Regression] gcc.dg/vect/vect-67.c failing since PRE rewrite

2008-12-06 Thread hjl dot tools at gmail dot com 


--- Comment #5 from hjl dot tools at gmail dot com  2008-12-07 01:11 ---
See PR 36792.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37853

[Bug tree-optimization/37853] [4.4 Regression] gcc.dg/vect/vect-67.c failing since PRE rewrite

2008-10-21 Thread mmitchel at gcc dot gnu dot org 


-- 

mmitchel at gcc dot gnu dot org changed:

   What|Removed |Added

   Priority|P3  |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37853

[Bug tree-optimization/37853] [4.4 Regression] gcc.dg/vect/vect-67.c failing since PRE rewrite

2008-10-17 Thread rguenth at gcc dot gnu dot org 


-- 

rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

 CC||dberlin at gcc dot gnu dot
   ||org, rguenth at gcc dot gnu
   ||dot org
 Status|UNCONFIRMED |NEW
  Component|middle-end  |tree-optimization
 Ever Confirmed|0   |1
   Keywords||missed-optimization
   Last reconfirmed|-00-00 00:00:00 |2008-10-17 08:45:43
   date||
Summary|gcc.dg/vect/vect-67.c   |[4.4 Regression]
   |failing since PRE rewrite   |gcc.dg/vect/vect-67.c
   ||failing since PRE rewrite
   Target Milestone|--- |4.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37853