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Re: Uninitialized memory access in final.c
- To: Richard Henderson <rth at cygnus dot com>
- Subject: Re: Uninitialized memory access in final.c
- From: Bernd Schmidt <bernds at redhat dot co dot uk>
- Date: Tue, 19 Sep 2000 17:23:51 +0100 (BST)
- cc: gcc-patches at gcc dot gnu dot org
On Tue, 19 Sep 2000, Richard Henderson wrote:
> On Tue, Sep 19, 2000 at 03:45:03PM +0100, Bernd Schmidt wrote:
> > Is it ever valid for an insn's length to be increased during
> > shorten_branches? It seems to me that this would cause the
> > algorithm to be no longer guaranteed to terminate.
> I thought we started with smallest lengths and always expanded.
> Otherwise you wouldn't find the minimal solution.
That's certainly not what the sh backend appears to be doing.
I put in an abort for this case and it triggered for the testcase
that I was debugging, but apparently for nothing else.