* reload.c (find_reloads_address_1): Handle PLUS expressions resulting

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

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e835441..2ed4912 100644 (file)
--- a/gcc/ChangeLog
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@@ -1,3 +1,16 @@
+2007-02-25  Ulrich Weigand  <uweigand@de.ibm.com>
+
+       * reload.c (find_reloads_address_1): Handle PLUS expressions resulting
+       from register elimination as PRE_MODIFY / POST_MODIFY increments.
+       Do not attempt to handle MEM inside auto-inc expressions.
+       * reload1.c (eliminate_regs_1): Do not attempt to handle elimination
+       of a register modified by an auto-inc expression.  However, do handle
+       elimination of a register used as PRE_MODIFY / POST_MODIFY increment.
+       (elimination_effects): Prohibit elimination of a register modified
+       by an auto-inc expression.  Disable register elimination rules whose
+       target register is modified by an auto-inc expression with variable
+       increment.
+
 2007-02-25  Zdenek Dvorak  <dvorakz@suse.cz>
 
        * tree-ssa-loop-niter.c (compute_estimated_nb_iterations): Fix