r208632 - in /branches/gcc-4_7-branch/gcc: Chan...

[rguenth@gcc.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