[PATCH] New predicate covering NOP_EXPR and CONVERT_EXPR

[Joseph S. Myers]

On Fri, 2 Dec 2005, Richard Guenther wrote:

> I'll try to get the number of these required changes down by using
> fold_convert where appropriate in various places.  Inside fold
> we treat those two as identical and where we don't it's a bug and
> possibly causes missed optimizations.

Yes, this is a good incremental change - reducing the number of places 
explicitly creating NOP_EXPR and CONVERT_EXPR so as to reduce the 627 
matches from grep that need looking at.

-- 
Joseph S. Myers               http://www.srcf.ucam.org/~jsm28/gcc/
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