2010-08-06 Richard Guenther <rguenther@suse.de>

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

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6640792..0ed05bd 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,29 @@
+2010-08-06  Richard Guenther  <rguenther@suse.de>
+
+       * tree-ssa-ccp.c (struct prop_value_d): Add mask member.
+       (dump_lattice_value): Dump it.
+       (get_default_value): Adjust.
+       (get_constant_value): Likewise.
+       (set_value_varying): Likewise.
+       (set_lattice_value): Make sure to not go up the lattice
+       with bitwise constant values.
+       (get_value_for_expr): Handle ADDR_EXPRs.
+       (value_to_double_int): New function.
+       (get_value_from_alignment): Likewise.
+       (do_dbg_cnt): Adjust.
+       (ccp_lattice_meet): Handle partially constant values.
+       (bit_value_unop_1): New function.
+       (bit_value_binop_1): Likewise.
+       (bit_value_unop): Likewise.
+       (bit_value_binop): Likewise.
+       (evaluate_stmt): Track partially constant values if
+       flag_tree_bit_ccp is set.
+       (ccp_fold_stmt): Dump if we folded a predicate.
+       (ccp_visit_stmt): Adjust.
+       * common.opt (ftree-bit-ccp): New flag.
+       * doc/invoke.texi (ftree-bit-ccp): Document.
+       * opts.c (decode_options): Enable bit-CCP at -O1.
+
 2010-08-06  Alan Modra  <amodra@gmail.com>
 
        * doc/invoke.texi (RS/6000 and PowerPC Options): Rewrite -mrelocatable