[Bug middle-end/39794] [4.4/4.5 Regression] Miscompile with -O2 -funroll-loops

[bonzini at gnu dot org]

------- Comment #4 from bonzini at gnu dot org  2009-04-20 15:48 -------
> Maybe a stupid question, but shouldn't this
> canon_true_dependence call receive canonicalized MEMs from 'base' and
> 'store_info->cse_base'?

I think so.  The only way that DSE can see that something changed, is by having
cselib_expand_value_rtx return a different expanded expression.


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bonzini at gnu dot org changed:

           What    |Removed                     |Added
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                 CC|                            |bonzini at gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39794