2006-02-20 Daniel Berlin <dberlin@dberlin.org>

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

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ce38f18..c811f20 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,24 @@
+2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
+
+       * tree.h (struct tree_memory_tag): Add is_used_alone member.
+       (TMT_USED_ALONE): New macro.
+       * tree-pass.h (PROP_tmt_usage): New property.
+       (TODO_update_tmt_usage): New todo.
+       * tree-ssa-alias.c (updating_used_alone): New variable.
+       (recalculate_used_alone): New function.   
+       (compute_may_aliases): Set updating_used_alone, call
+       recalculate_used_alone. 
+       * tree-sra.c (pass_sra): Note that this pass destroys
+       PROP_tmt_usage, and add TODO_update_tmt_usage.
+       * tree-ssa-forwprop.c (pass_forwprop): Ditto.
+       * tree-flow.h (updating_used_alone): Prototype.
+       (recalculate_used_alone): Ditto.
+       * passes.c (execute_todo): Add code to set updating_used_alone,
+       and call recalculate.
+       * tree-ssa-operands.c (add_virtual_operand): Only append bare def
+       for clobber if used alone, and add assert to verify used_alone
+       status.
+       
 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
 
        * config/s390/s390.c (legitimize_pic_address): Assertions checking