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Re: [PATCH] Handle BIT_NOT_EXPR in VRP

On 08/05/2011 02:31 PM, Richard Guenther wrote:

This extends VRP to handle BIT_NOT_EXPR by composing ~X as
-X - 1 (which should give us anti-range handling for free).

Just a small detail, but why not -1 - X which saves the NEGATE_EXPR? :)

Paolo

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  - From: Richard Guenther

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