[Bug tree-optimization/70754] [6 Regression] ICE during predictive commoning

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70754

bin cheng  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution|--- |FIXED

--- Comment #22 from bin cheng  ---
Consider this fixed, since GCC5 is not maintained.

[Bug tree-optimization/70754] [6 Regression] ICE during predictive commoning

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70754

--- Comment #21 from amker at gcc dot gnu.org ---
Author: amker
Date: Thu Feb  1 12:00:57 2018
New Revision: 257291

URL: https://gcc.gnu.org/viewcvs?rev=257291=gcc=rev
Log:
Backport from mainline
2017-11-15  Bin Cheng  

PR tree-optimization/82726
PR tree-optimization/70754
* tree-predcom.c (order_drefs_by_pos): New function.
(combine_chains): Move code setting has_max_use_after to...
(try_combine_chains): ...here.  New parameter.  Sort combined chains
according to position information.
(tree_predictive_commoning_loop): Update call to above function.
(update_pos_for_combined_chains, pcom_stmt_dominates_stmt_p): New.

testsuite

Backport from mainline
2017-11-15  Bin Cheng  

PR tree-optimization/82726
* gcc.dg/tree-ssa/pr82726.c: New test.

Backport from mainline
2017-01-23  Bin Cheng  

PR tree-optimization/70754
* gfortran.dg/pr70754.f90: New test.

Added:
branches/gcc-6-branch/gcc/testsuite/gcc.dg/tree-ssa/pr82726.c
branches/gcc-6-branch/gcc/testsuite/gfortran.dg/pr70754.f90
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/tree-predcom.c

[Bug tree-optimization/70754] [6 Regression] ICE during predictive commoning

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70754

--- Comment #20 from amker at gcc dot gnu.org ---
Author: amker
Date: Tue Dec 19 15:25:56 2017
New Revision: 255828

URL: https://gcc.gnu.org/viewcvs?rev=255828=gcc=rev
Log:

Backport from mainline
2017-11-15  Bin Cheng  

PR tree-optimization/82726
PR tree-optimization/70754
* tree-predcom.c (order_drefs_by_pos): New function.
(combine_chains): Move code setting has_max_use_after to...
(try_combine_chains): ...here.  New parameter.  Sort combined chains
according to position information.
(tree_predictive_commoning_loop): Update call to above function.
(update_pos_for_combined_chains, pcom_stmt_dominates_stmt_p): New.

2017-11-15  Bin Cheng  

PR tree-optimization/82726
Revert
2017-01-23  Bin Cheng  

PR tree-optimization/70754
* tree-predcom.c (stmt_combining_refs): New parameter INSERT_BEFORE.
(reassociate_to_the_same_stmt): New parameter INSERT_BEFORE.  Insert
combined stmt before it if not NULL.
(combine_chains): Process refs reversely and compute dominance point
for root ref.

Revert
2017-02-23  Bin Cheng  

PR tree-optimization/79663
* tree-predcom.c (combine_chains): Process refs in reverse order
only for ZERO length chains, and add explaining comment.

gcc/testsuite

Backport from mainline
2017-11-15  Bin Cheng  

PR tree-optimization/82726
* gcc.dg/tree-ssa/pr82726.c: New test.


Added:
branches/gcc-7-branch/gcc/testsuite/gcc.dg/tree-ssa/pr82726.c
Modified:
branches/gcc-7-branch/gcc/ChangeLog
branches/gcc-7-branch/gcc/testsuite/ChangeLog
branches/gcc-7-branch/gcc/tree-predcom.c

[Bug tree-optimization/70754] [6 Regression] ICE during predictive commoning

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70754

--- Comment #19 from amker at gcc dot gnu.org ---
Author: amker
Date: Wed Nov 15 16:20:21 2017
New Revision: 254778

URL: https://gcc.gnu.org/viewcvs?rev=254778=gcc=rev
Log:
PR tree-optimization/82726
PR tree-optimization/70754
* tree-predcom.c (order_drefs_by_pos): New function.
(combine_chains): Move code setting has_max_use_after to...
(try_combine_chains): ...here.  New parameter.  Sort combined chains
according to position information.
(tree_predictive_commoning_loop): Update call to above function.
(update_pos_for_combined_chains, pcom_stmt_dominates_stmt_p): New.

gcc/testsuite
* gcc.dg/tree-ssa/pr82726.c: New test.

Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr82726.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-predcom.c

[Bug tree-optimization/70754] [6 Regression] ICE during predictive commoning

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70754

--- Comment #18 from amker at gcc dot gnu.org ---
Author: amker
Date: Wed Nov 15 16:16:49 2017
New Revision: 254777

URL: https://gcc.gnu.org/viewcvs?rev=254777=gcc=rev
Log:
PR tree-optimization/82726
Revert
2017-01-23  Bin Cheng  

PR tree-optimization/70754
* tree-predcom.c (stmt_combining_refs): New parameter INSERT_BEFORE.
(reassociate_to_the_same_stmt): New parameter INSERT_BEFORE.  Insert
combined stmt before it if not NULL.
(combine_chains): Process refs reversely and compute dominance point
for root ref.

Revert
2017-02-23  Bin Cheng  

PR tree-optimization/79663
* tree-predcom.c (combine_chains): Process refs in reverse order
only for ZERO length chains, and add explaining comment.

Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-predcom.c