Dead code elimination of dead structure assignments in gcc

[Richard Henderson]

On Wed, Jan 23, 2002 at 06:58:59AM -0700, law@redhat.com wrote:
> >From a brief look at your example, I would expect flow to delete your
> dead stores -- I don't know why it isn't working.

Flow only does this for leaf basic blocks (ones ending in a return
or a noreturn function call).  We do not propagate stack slot life
information into other blocks.


r~