http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53774
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-06-26
Ever Confirmed|0 |1
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-06-26
08:56:35 UTC ---
Confirmed with -O1. get_rank (fp_6(D)) returns the same value as
get_rank (constant). Constants should always have a lesser rank than
non-constants.
Index: gcc/tree-ssa-reassoc.c
===================================================================
--- gcc/tree-ssa-reassoc.c (revision 188927)
+++ gcc/tree-ssa-reassoc.c (working copy)
@@ -337,7 +337,7 @@ get_rank (tree e)
{
/* Constants have rank 0. */
if (is_gimple_min_invariant (e))
- return 0;
+ return -1;
/* SSA_NAME's have the rank of the expression they are the result
of.
would fix it, but I'm not sure we want negative ranks.
