[LLVMdev] [llvm-commits] CAUTION: Type != Value (fwd)

[Chris Lattner]

FYI to llvmdev.  This is a huge win for LLVM.  Thanks Reid!

-Chris

-- 
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---------- Forwarded message ----------
Date: Sun, 04 Jul 2004 05:26:34 -0700
From: Reid Spencer <reid at x10sys.com>
To: llvm-commits at cs.uiuc.edu
Subject: [llvm-commits] CAUTION: Type != Value

LLVMers,

I have committed one of the major changes on the way to finishing bug
122: Type no longer derives from Value. My changes have all been
committed and they pass 100% of Feature & Regression tests as well as
being able to compile llvm-gcc.

Please be aware of the following changes made by my commits:

* Type no longer derives from Value (yeah!). Consequently, Types are
  smaller and hopefully faster. Types no longer have a Uses vector.
* You can't use Value and Type interchangeably any more. When you
  mean a Type, use Type*. When you mean a Value, use Value*.
* Value.h no longer #includes <iostream>. I've made the necessary
  changes to all the .cpp files but going forward please only
  #include <iostream> from a .cpp file
* The bytecode file format changed. Types are now written separately
  from values
* There's a new bytecode analysis tool, llvm-bcanalyzer, that will
  produce statistics about bytecode files.

I'm pretty certain this doesn't break *anything*, but a change of this
scope isn't without its subtleties. If you suspect something is broken
related to these changes or you need further description/explanation,
please don't hesitate to contact me.

Best Regards,

Reid.