[PATCH] Fix DSE with nop or maybe nop assignments (PR c++/34459)
Thu Dec 20 20:59:00 GMT 2007
This is a side-effect of vdef implying vuse :)
On Dec 20, 2007 8:00 AM, Diego Novillo <firstname.lastname@example.org> wrote:
> On 12/19/07 19:02, Jakub Jelinek wrote:
> > PR c++/34459
> > * tree-ssa-dse.c (dse_optimize_stmt): Don't eliminate store if
> > USE_STMT not only stores into the same object as STMT, but might
> > read it too.
> > * gcc.c-torture/execute/20071219-1.c: New test.
> OK. DSE needs to be rewritten.
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