[Bug bootstrap/45519] [4.6 regression] Failed to bootstrap

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2010-09-03 14:21 -------
Hmhm, IVOPTs expands crap into arguments.

Index: gcc/tree-ssa-loop-ivopts.c
===================================================================
--- gcc/tree-ssa-loop-ivopts.c  (revision 163817)
+++ gcc/tree-ssa-loop-ivopts.c  (working copy)
@@ -1023,6 +1023,11 @@ find_bivs (struct ivopts_data *data)

       type = TREE_TYPE (PHI_RESULT (phi));
       base = fold_convert (type, base);
+      STRIP_USELESS_TYPE_CONVERSION (base);
+      if (CONVERT_EXPR_P (base)
+         && (POINTER_TYPE_P (TREE_TYPE (base))
+             != POINTER_TYPE_P (TREE_OPERAND (base, 0))))
+       continue;
       if (step)
        {
          if (POINTER_TYPE_P (type))


fixes the testcase, I am bootstrapping and testing this on x86_64 as a
short-term fix but have to think about it some more.

Can you check if 32bit bootstrap succeeds with that?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45519