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REGISTER_CONSTRAINTS
- To: gcc at gcc dot gnu dot org
- Subject: REGISTER_CONSTRAINTS
- From: Bernd Schmidt <bernds at cygnus dot co dot uk>
- Date: Wed, 29 Sep 1999 17:40:37 +0100 (BST)
The documentation states that all ports in existence use register
constraints. This means that we have some code in the compiler which
hasn't been compiled and tested in several years. Could we delete all
the [! REGISTER_CONSTRAINTS] code? How likely is it that a new machine
description will use no register constraints, and if it is likely, is the
expected compiler performance penalty bad enough to leave the code in
there?
Bernd