[Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2007-06-16 20:55 -------
This patch works for me (and I think it is correct):
Index: tree-chrec.c
===================================================================
--- tree-chrec.c        (revision 125757)
+++ tree-chrec.c        (working copy)
@@ -712,6 +712,10 @@
          else
            component = CHREC_LEFT (chrec);

+         if (!right && TREE_CODE (CHREC_LEFT (chrec)) == POLYNOMIAL_CHREC
+             && CHREC_VARIABLE (CHREC_LEFT (chrec)) == CHREC_VARIABLE (chrec))
+           return chrec_component_in_loop_num (CHREC_LEFT (chrec), loop_num,
right);
+
          if (TREE_CODE (CHREC_LEFT (chrec)) != POLYNOMIAL_CHREC
              || CHREC_VARIABLE (CHREC_LEFT (chrec)) != CHREC_VARIABLE (chrec))
            return component;


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367