I swear this was in there when i committed, but apparently not

From-SVN: r94449

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 76c84a4b06734b44417af3086f825158d0e1ca62..ab3054559bbe6d1e1361dec182b18d3dba852b91 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,29 @@
+2005-01-30  Daniel Berlin  <dberlin@dberlin.org>
+
+       Fix PR tree-optimization/19624
+       
+       * Makefile.in (tree-ssa-pre.o): Add CFGLOOP_H.
+       * tree-ssa-pre.c: Add cfgloop.h.
+       Update comment.
+       (pre_stats): New member, constified.
+       (inserted_exprs): New static variable.
+       (NECESSARY): New macro.
+       (create_expression_by_pieces): Fold the expression, and
+       mark it as defaulting to not necessary. Also put in
+       inserted_exprs.
+       (fully_constant_expression): New function.
+       (insert_into_preds_of_block): Modify to not insert phis when we
+       are playing with induction variables.
+       Push phis onto the inserted_exprs vector, and mark them as not
+       necessary by default.
+       (insert_aux): Call fully_constant_expression on eprime.
+       If all edges produce the same value, mark it constant.
+       (mark_operand_necessary): New function.
+       (remove_dead_inserted_code): New function.
+       (init_pre): Init loop optimizer to get loop info.
+       (fini_pre): Free loop_optimizer, and inserted_exprs vec.
+       (execute_pre): Commit edge inserts, then remove dead code.
+
 2005-01-30  Richard Henderson  <rth@redhat.com>
 
        * rtl.c (rtx_equal_p): No early exit for CONST_VECTOR.