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Re: [PATCH] Don't prevent merging of bbs because of user labels (PR tree-optimization/50693)
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: Jakub Jelinek <jakub at redhat dot com>
- Cc: gcc-patches at gcc dot gnu dot org, Alexandre Oliva <aoliva at redhat dot com>
- Date: Sun, 6 Nov 2011 18:14:18 +0100
- Subject: Re: [PATCH] Don't prevent merging of bbs because of user labels (PR tree-optimization/50693)
- References: <20111104203805.GP1052@tyan-ft48-01.lab.bos.redhat.com>
> As has been suggested by Alexandre in the PR, this patch allows merging
> basic blocks which couldn't be merged before because of user (non-forced)
> labels at the beginning of the second basic blocks.
> With this patch the user label is thrown away (for -g0 or -g
> -fno-var-tracking-assignments) or turned into a debug bind stmt which
> contains the label.
Do we really want to do that if !optimize?
--
Eric Botcazou