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Re: -O0 dead code
- To: Richard Henderson <rth at cygnus dot com>
- Subject: Re: -O0 dead code
- From: Joern Rennecke <amylaar at cygnus dot co dot uk>
- Date: Tue, 8 Aug 2000 18:24:26 +0100 (BST)
- CC: gcc at gcc dot gnu dot org
> So how do people feel about the notion of dead code elimination at -O0?
> If we exclude the bits that that detect dead stores, we shouldn't be
> affecting any user-visible state, since all user variables live in
> memory at -O0.
No, not variables that habe been explicitly assigned to a particular register.