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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/57656] [4.7 Regression] Wrong constant folding
Date: Tue, 18 Mar 2014 08:47:00 -0000 [thread overview]
Message-ID: <bug-57656-4-V4Qw1P6W2q@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-57656-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57656
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Mar 18 08:46:21 2014
New Revision: 208632
URL: http://gcc.gnu.org/viewcvs?rev=208632&root=gcc&view=rev
Log:
2014-03-18 Richard Biener <rguenther@suse.de>
Backport from mainline
2013-08-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/57521
* tree-if-conv.c (if_convertible_bb_p): Verify that at least
one edge is non-critical.
(find_phi_replacement_condition): Make sure to use a non-critical
edge. Cleanup and remove old bug workarounds.
(bb_postdominates_preds): Remove.
(if_convertible_loop_p_1): Do not compute post-dominators.
(combine_blocks): Do not free post-dominators.
(main_tree_if_conversion): Likewise.
* gcc.dg/torture/pr57521.c: New testcase.
2013-09-03 Richard Biener <rguenther@suse.de>
PR middle-end/57656
* fold-const.c (negate_expr_p): Fix division case.
(negate_expr): Likewise.
* gcc.dg/torture/pr57656.c: New testcase.
2013-11-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/57517
* tree-predcom.c (combinable_refs_p): Verify the combination
is always executed when the refs are.
* gfortran.fortran-torture/compile/pr57517.f90: New testcase.
* gcc.dg/torture/pr57517.c: Likewise.
Added:
branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr57517.c
branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr57521.c
branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr57656.c
branches/gcc-4_7-branch/gcc/testsuite/gfortran.fortran-torture/compile/pr57517.f90
Modified:
branches/gcc-4_7-branch/gcc/ChangeLog
branches/gcc-4_7-branch/gcc/fold-const.c
branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
branches/gcc-4_7-branch/gcc/tree-if-conv.c
branches/gcc-4_7-branch/gcc/tree-predcom.c
next prev parent reply other threads:[~2014-03-18 8:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-57656-4@http.gcc.gnu.org/bugzilla/>
2013-06-20 6:14 ` [Bug tree-optimization/57656] [4.7/4.8/4.9 " jakub at gcc dot gnu.org
2013-06-20 9:06 ` rguenth at gcc dot gnu.org
2013-06-24 11:55 ` rguenth at gcc dot gnu.org
2013-09-03 10:00 ` rguenth at gcc dot gnu.org
2013-09-03 10:00 ` [Bug tree-optimization/57656] [4.7/4.8 " rguenth at gcc dot gnu.org
2013-09-09 9:49 ` rguenth at gcc dot gnu.org
2014-03-18 8:47 ` rguenth at gcc dot gnu.org [this message]
2014-03-18 8:47 ` [Bug tree-optimization/57656] [4.7 " rguenth at gcc dot gnu.org
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