PR tree-optimization/42906

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
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+2010-04-06  Jan Hubicka  <jh@suse.czpli
+
+       PR tree-optimization/42906
+
+       * tree-ssa-dce.c (mark_control_dependent_edges_necessary): Add IGNORE_SELF
+       argument; set visited_control_parents for fully processed BBs.
+       (find_obviously_necessary_stmts): Update call of
+       mark_control_dependent_edges_necessary.
+       (propagate_necessity): Likewise; handle PHI edges more curefully.
+
+2010-04-06  Uros Bizjak  <ubizjak@gmail.com>
+
+       * config/i386/i386.md: Remove comment about 'e' and 'E'
+       operand modifier.
+
+2010-04-06  Richard Guenther  <rguenther@suse.de>
+
+       PR tree-optimization/43627
+       * tree-vrp.c (extract_range_from_unary_expr): Widenings
+       of [1, +INF(OVF)] go to [1, +INF(OVF)] of the wider type,
+       not varying.
+
 2010-04-06  Jakub Jelinek  <jakub@redhat.com>
 
+       * BASE-VER: Change to 4.6.0.
+
        PR target/43638
        * config/i386/i386.c (print_operand): Remove 'e' and 'E' code
        handling.