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Re: [tree-ssa] Thoughts on live-on-entry variables
- From: Diego Novillo <dnovillo at redhat dot com>
- To: Joern Rennecke <joern dot rennecke at superh dot com>
- Cc: "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
- Date: 16 Jun 2003 14:32:06 -0400
- Subject: Re: [tree-ssa] Thoughts on live-on-entry variables
- Organization: Red Hat Canada
- References: <3EEE02BD.51EA7954@superh.com>
On Mon, 2003-06-16 at 13:47, Joern Rennecke wrote:
> > an uninitialized variable. This pass would run at the end of the
> > optimization pipeline, which would minimize (eliminate?) false
> > positives.
>
> If you manage to get the optimizers to a point that they eliminate
> false positives, you will cause quite a stir in computing science.
>
Indeed. That's why the warning should read "if this statement executes,
variable 'u' will be used uninitialized". :)
Diego.