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Re: g++.old-deja/g++.mike/p7325.C - suspected bogus test case

From: Mike Stump <mrs at apple dot com>
To: Zack Weinberg <zack at codesourcery dot com>
Cc: Mark Mitchell <mark at codesourcery dot com>, gcc at gcc dot gnu dot org
Date: Tue, 29 Jun 2004 07:16:03 -0700
Subject: Re: g++.old-deja/g++.mike/p7325.C - suspected bogus test case

On Saturday, June 26, 2004, at 12:12 PM, Zack Weinberg wrote:

It seemed a plausible consequence of the interprocedural escape
analysis that he was describing.

In this case, with the options given, no.

Sure, the language says these temporaries go away at a particular point, but the data-flow analysis says their addresses are preserved, so the conservative optimization decision is not to recycle the storage.

No, thaat would be wrong. A warning about addresses escaping would be better.

References:
- Re: g++.old-deja/g++.mike/p7325.C - suspected bogus test case
  - From: Zack Weinberg

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