c++/1687: Extreme compile time regression from 2.95.2

[Zack Weinberg]

On Tue, Feb 06, 2001 at 12:43:21PM -0800, Zack Weinberg wrote:

> 	* optimize.c: Include hashtab.h.
> 	(struct inline_data): Add tree_pruner field.
> 	(expand_call_inline, expand_calls_inline): Call walk_tree with
> 	id->tree_pruner for fourth argument, putting it into
> 	no-duplicates mode.
> 	(optimize_function): Create and destroy a hash table for
> 	duplicate pruning, store it in id.tree_pruner.

I'd like to remind people that this patch has not yet been reviewed.

zw