Re: [PATCH] Do not record dependences from debug stmts in tail merging

[Jakub Jelinek]

On Thu, Feb 15, 2024 at 11:00:29AM +0100, Richard Biener wrote:
> The following avoids recording BB dependences for debug stmt uses.
> 
> Bootstrap and regtest running on x86_64-unknown-linux-gnu.
> 
> It's unlikely a dependence is just because of debug stmts so
> actual compare-debug issues are very unlikely.  Still spotted
> while investigating a CI regression mail (for an obsolete broken
> patch ...)
> 
>       * tree-ssa-tail-merge.cc (same_succ_hash): Skip debug
>       stmts.

LGTM.

        Jakub