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Re: [tree-ssa-branch] Overhaul DFA/SSA internals [patch]
- From: Daniel Berlin <dberlin at dberlin dot org>
- To: Diego Novillo <dnovillo at redhat dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Mon, 9 Sep 2002 09:37:45 -0400
- Subject: Re: [tree-ssa-branch] Overhaul DFA/SSA internals [patch]
On Monday, September 9, 2002, at 01:55 AM, Diego Novillo wrote:
- For every pointer reference, a may-ref to every variable that
might be aliased by the pointer is also created. This is
currently creating some memory problems for many of the
generated parsers (yyparse). The compiler is growing to about
100-300Mb. Compilation times for those files are in the 2-6
minute range. This is particularly bad for the C++ parser (325
Mb and 6:02 CPU minutes).
I'll add code to use the steen info if it's around, and see how slow it
is.