Re: SSA in gcc

"Diego Novillo" <dnovillo@redhat.com>
25 Sep 2002 23:52:55 -0400

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Re: SSA in gcc loewis@informatik.hu-berlin.de (Martin v. =?iso-8859-1?q?L=F6wis?=) (2002-09-25)
Re: SSA in gcc dnovillo@redhat.com (Diego Novillo) (2002-09-25)
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From: "Diego Novillo" <dnovillo@redhat.com>
Newsgroups: comp.compilers
Date: 25 Sep 2002 23:52:55 -0400
Organization: Compilers Central
References: 02-09-135
Keywords: GCC, analysis
Posted-Date: 25 Sep 2002 23:52:55 EDT

On Sun, 2002-09-22 at 12:24, sumesh wrote:


> Can any body give me pointers to existence of SSA analysis in GCC.
>
There are two SSA passes in GCC. The older one is done on RTL.
However, it has been collecting dust for a while. We expect to continue
developing after implementing a higher-level RTL form.


The second SSA pass is being done on the new tree IR (based on McCAT's
SIMPLE form). It is still not part of mainline GCC, and it's not
expected to be for a few more months. If you're interested in trying it
out or helping with development, visit


                        http://gcc.gnu.org/projects/tree-ssa/




Diego.

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