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use of exp in expand_expr

From: Per Fransson <fransson at cs dot lth dot se>
To: gcc <gcc at gcc dot gnu dot org>
Date: Mon, 5 Aug 2002 14:49:45 +0200 (CEST)
Subject: use of exp in expand_expr

Hi,

Is there any way to tell what an expression will be used for in
expand_expr? For example, can I tell if a VAR_DECL will be used for
reading or writing?

/Per

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