[Bug tree-optimization/77605] [5/6 Regression] wrong code at -O3 on x86_64-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77605

--- Comment #9 from Richard Biener  ---
Author: rguenth
Date: Tue Sep 27 10:54:00 2016
New Revision: 240527

URL: https://gcc.gnu.org/viewcvs?rev=240527=gcc=rev
Log:
2016-09-27  Richard Biener  

Backport from mainline
2016-09-01  Richard Biener  

PR middle-end/77436
* tree-chrec.c (tree_fold_binomial): Use widest_int, properly
check whether the result fits the desired result type.

* gcc.dg/torture/pr77436.c: New testcase.

2016-09-06  Richard Biener  

PR c/77450
c-family/
* c-common.c (c_common_mark_addressable_vec): Handle
COMPOUND_LITERAL_EXPR.

* gcc.dg/pr77450.c: New testcase.

2016-09-19  Richard Biener  

PR tree-optimization/77514
* tree-ssa-pre.c (create_expression_by_pieces): Optimize
search for folded stmt.

2016-09-15  Richard Biener  

PR tree-optimization/77514
* tree-ssa-pre.c (create_expression_by_pieces): Handle garbage
only forced_stmts sequence.

* gcc.dg/torture/pr77514.c: New testcase.

2016-09-15  Richard Biener  

PR middle-end/77544
* fold-const.c (split_tree): Do not split constant ~X.

* c-c++-common/torture/pr77544.c: New testcase.

2016-09-19  Richard Biener  

PR middle-end/77605
* tree-data-ref.c (analyze_subscript_affine_affine): Use the
proper niter to bound the loops.

* gcc.dg/torture/pr77605.c: New testcase.

2016-09-22  Richard Biener  

PR middle-end/77679
* gimple-fold.c (fold_array_ctor_reference): Turn asserts into
fold fails.

Added:
branches/gcc-6-branch/gcc/testsuite/c-c++-common/torture/pr77544.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/pr77450.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr77436.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr77514.c
branches/gcc-6-branch/gcc/testsuite/gcc.dg/torture/pr77605.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/c-family/ChangeLog
branches/gcc-6-branch/gcc/c-family/c-common.c
branches/gcc-6-branch/gcc/fold-const.c
branches/gcc-6-branch/gcc/gimple-fold.c
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/tree-chrec.c
branches/gcc-6-branch/gcc/tree-data-ref.c
branches/gcc-6-branch/gcc/tree-ssa-pre.c

[Bug tree-optimization/77605] [5/6 Regression] wrong code at -O3 on x86_64-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77605

--- Comment #8 from Richard Biener  ---
Author: rguenth
Date: Mon Sep 19 06:55:17 2016
New Revision: 240227

URL: https://gcc.gnu.org/viewcvs?rev=240227=gcc=rev
Log:
2016-09-19  Richard Biener  

PR middle-end/77605
* tree-data-ref.c (analyze_subscript_affine_affine): Use the
proper niter to bound the loops.

* gcc.dg/torture/pr77605.c: New testcase.

Added:
trunk/gcc/testsuite/gcc.dg/torture/pr77605.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-data-ref.c

[Bug tree-optimization/77605] [5/6 Regression] wrong code at -O3 on x86_64-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77605

Richard Biener  changed:

   What|Removed |Added

  Known to work||7.0
Summary|[5/6/7 Regression] wrong|[5/6 Regression] wrong code
   |code at -O3 on  |at -O3 on x86_64-linux-gnu
   |x86_64-linux-gnu|

--- Comment #7 from Richard Biener  ---
Fixed on trunk sofar.