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+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.
+
+ 2013-09-03 Richard Biener <rguenther@suse.de>
+
+ PR middle-end/57656
+ * fold-const.c (negate_expr_p): Fix division case.
+ (negate_expr): Likewise.
+
+ 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.
+
2014-03-17 Richard Biener <rguenther@suse.de>
Backport from mainline