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Re: [patch] Remove unused crossjump code

From: Jeff Law <law at redhat dot com>
To: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>
Cc: gcc-patches at gcc dot gnu dot org, stevenb dot gcc at gmail dot com
Date: Tue, 16 Jun 2009 11:06:32 -0600
Subject: Re: [patch] Remove unused crossjump code
References: <571f6b510906121600j47afa0d0i2e8564cf8a6d36df@mail.gmail.com> <4A37C37A.9050701@redhat.com> <10906161634.AA16517@vlsi1.ultra.nyu.edu>

Richard Kenner wrote:

This doesn't look familiar to me at all. I can't even recall a time when cross jumping ran prior to reload.
My memory could well be wrong, but I'm pretty sure that it originally ran twice, once before reload and once after.

I wasn't able to find any evidence that we cross-jumped prior to reload -- I guess it's possible we had such code in the gcc2 development tree, but it didn't make it into the gcc2.0 release.

We did run cross-jumping twice -- but they were both after reload -- the second one was to deal with the code inserted by reg-stack.

Jeff

Follow-Ups:
- Re: [patch] Remove unused crossjump code
  - From: Richard Kenner

References:
- [patch] Remove unused crossjump code
  - From: Steven Bosscher
- Re: [patch] Remove unused crossjump code
  - From: Jeff Law
- Re: [patch] Remove unused crossjump code
  - From: Richard Kenner

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