[PATCH] Fix fold_widened_comparison (PR tree-optimization/19283)

[Roger Sayle]

On Thu, 6 Jan 2005, Jakub Jelinek wrote:
> 2005-01-06  Jakub Jelinek  <jakub@redhat.com>
>
> 	PR tree-optimization/19283
> 	* fold-const.c (fold_widened_comparison): Return NULL if shorter_type
> 	is not shorter than the original type.
>
> 	* gcc.c-torture/execute/20050106-1.c: New test.

This is OK for mainline.

Thanks,

Roger
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