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Re: optimizing away parts of macros?

From: Joe Buck <Joe dot Buck at synopsys dot COM>
To: David Nicol <david at mindtrustllc dot com>
Cc: gcc at gcc dot gnu dot org
Date: Mon, 17 Apr 2006 14:52:20 -0700
Subject: Re: optimizing away parts of macros?
References: <934f64a20604171442jb884aa0p749d33ce4be87889@mail.gmail.com>

On Mon, Apr 17, 2006 at 04:42:18PM -0500, David Nicol wrote:
> I am using
> gcc (GCC) 4.0.2 20051125 (Red Hat 4.0.2-8)
> 
> under the Inline::C perl module
> 
> and having a very weird situation.

You vaguely describe your problem, speculate on its cause, and don't
include a complete testcase.  Not a good way to get help.

> I have a multi-line macro that declares several variables and then does some
> work with them, for use in several functions that have similar invocations,
> interfacing to an external library.

Use the -E option to see what's coming out of the preprocessor.  If
that doesn't make it obvious, use the gcc-help list.

Follow-Ups:
- Re: optimizing away parts of macros?
  - From: David Nicol

References:
- optimizing away parts of macros?
  - From: David Nicol

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