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mem-ssa merge 1/3 and 2/3

From: Diego Novillo <dnovillo at redhat dot com>
To: gcc-patches at gcc dot gnu dot org
Date: Mon, 11 Dec 2006 15:22:34 -0500
Subject: mem-ssa merge 1/3 and 2/3

I finally yielded to Zdenek's pressure to split the patch. The split makes no logical sense, but they are three separate chunks that I could create with the least aggravation.

I didn't make it clear enough that all of mem-ssa evolved in layers: VOPS changes -> push/pop -> V_MUST_DEF removal -> partitions -> alias speedups. Separating the implementation post-mortem is fairly annoying.

Tested on x86-64. Will test and commit the final patch on all the usual arches and provide the final numbers shortly.

Attachment: 20061211-dce-merge.diff.gz
Description: GNU Zip compressed data

Attachment: 20061211-misc-changes.diff.gz
Description: GNU Zip compressed data

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