[Fwd: [PATCH, RFC] Expose target addressing modes before expand (revised)]

[Jeff Law]

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On 02/24/11 11:24, William J. Schmidt wrote:
> It occurs to me that it would be easy to expand the CSE by saving the
> hash table for each block, rather than throwing it out immediately.
> Each block could then seed its hash table with the data from its
> immediate dominator.  This would avoid relying on a downstream global
> CSE to clean up afterwards.
Yup.  That's standard stuff for CSE.  The existing code in GCC
(tree-ssa-dom.c and cse.c) already do this.

jeff
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