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Re: PATCH: removes expand_constant language hook

From: "Ollie Wild" <aaw at google dot com>
To: "Andrew Pinski" <pinskia at gmail dot com>
Cc: "Mark Mitchell" <mark at codesourcery dot com>, gcc-patches at gcc dot gnu dot org
Date: Thu, 29 Mar 2007 12:46:22 -0700
Subject: Re: PATCH: removes expand_constant language hook
References: <65dd6fd50703151406p31d6153buada3636b871b300a@mail.gmail.com> <45F9E6CF.6070709@codesourcery.com> <65dd6fd50703161311n543ba201w752c29692885f0a0@mail.gmail.com> <65dd6fd50703272309n27beb678xd2f3ac89b106a92e@mail.gmail.com> <de8d50360703272316o522a445did596eba7a652776e@mail.gmail.com>

That is actually a good thing.  Otherwise some object
files/exectuables will be big.
This might reduce the size of libraries/exectuables a little.


Unfortunately, probably not  by much.  Uninitialized pointers to
members get a -1 value, and must be stored in the data section.  The
bss stuff ends up being pointer to member constants which happen to be
initialized to the first member of a structure, which I imagine is a
lot rarer.

Ollie

References:
- PATCH: removes expand_constant language hook
  - From: Ollie Wild
- Re: PATCH: removes expand_constant language hook
  - From: Mark Mitchell
- Re: PATCH: removes expand_constant language hook
  - From: Ollie Wild
- Re: PATCH: removes expand_constant language hook
  - From: Ollie Wild
- Re: PATCH: removes expand_constant language hook
  - From: Andrew Pinski

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