Re: use-def chains

Ralph Johnson <>
Wed, 20 Sep 89 13:48:08 -0500

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use-def chains (Preston Briggs) (1989-09-18)
Re: use-def chains (Ralph Johnson) (1989-09-20)
Re: use-def chains (Preston Briggs) (1989-09-25)
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Date: Wed, 20 Sep 89 13:48:08 -0500
From: Ralph Johnson <>

Static single assignment is very nice. We have been using it in our
Smalltalk compiler and it has worked out well. It might store the
same information as use-def chains, but it stores it in a form that
is much easier to access and maintain. I don't worry about space,
because our routines are small, so I can't comment on that, but the
speed claims seem to be accurate.

Ralph Johnson
[From Ralph Johnson <>]

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