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Re: merge_translation_unit_decls / duplicate_decls

From: Geoffrey Keating <geoffk at apple dot com>
To: Per Bothner <pbothner at apple dot com>
Cc: gcc at gcc dot gnu dot org
Date: Mon, 17 Nov 2003 22:20:24 -0800
Subject: Re: merge_translation_unit_decls / duplicate_decls
References: <3FB9B3F7.8060005@apple.com>

On 17/11/2003, at 9:53 PM, Per Bothner wrote:

It seems to me that TREE_ASM_WRITTEN only when we had [before
this code is executed], because of the earlier assignment:
DECL_EXTERNAL (newdecl) && ! DECL_EXTERNAL (olddecl)

Yes, but after the code we have ! DECL_EXTERNAL on both of them. So, now we have two *definitions* of this decl, and if we try to write them both out, we'll get a duplicate symbol error in the assembly code; so we suppress writing one of them out.

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References:
- merge_translation_unit_decls / duplicate_decls
  - From: Per Bothner

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