SIMPLE: A language-independent tree IR

[Fergus Henderson]

Just to clarify:

	The idea of a language-independent tree IR in which all side-effects
	are *_STMT nodes rather than *_EXPR nodes ("SIMPLE trees") sounds fine,
	but I don't think language front-ends should use that tree IR;
	instead they should generate a different form of tree IR
	which allows *_EXPR nodes with side effects ("INITIAL trees")
	and then some language-independent pass can convert from
	INITIAL trees to SIMPLE trees.

Is that what you all had in mind?

-- 
Fergus Henderson <fjh@cs.mu.oz.au>  |  "I have always known that the pursuit
The University of Melbourne         |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.