[Bug middle-end/44203] [4.6 regression] New prefetch test failures

[borntraeger at de dot ibm dot com]

------- Comment #1 from borntraeger at de dot ibm dot com  2010-05-20 08:29 
-------

Indeed. I think I found a typo when handling array prefetches.
a potential fix might be:

--- gcc/tree-ssa-loop-prefetch.c        (Revision 159557)
+++ gcc/tree-ssa-loop-prefetch.c        (Arbeitskopie)
@@ -440,7 +440,7 @@

       *ar_data->step = fold_build2 (MULT_EXPR, sizetype,
                                    fold_convert (sizetype, *ar_data->step),
-                                   fold_convert (sizetype, step));
+                                   fold_convert (sizetype, stepsize));
       idelta *= imult;
     }



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44203