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Re: block movement and eh
- To: Jason Merrill <jason at cygnus dot com>
- Subject: Re: block movement and eh
- From: Richard Henderson <rth at cygnus dot com>
- Date: Tue, 21 Sep 1999 14:33:57 -0700
- Cc: gcc-patches at gcc dot gnu dot org, Andrew Macleod <amacleod at cygnus dot com>, "Jeffrey A. Law" <law at cygnus dot com>
- References: <19990921102030.A20186@cygnus.com> <u9yae06q9o.fsf@yorick.cygnus.com>
On Tue, Sep 21, 1999 at 12:03:31PM -0700, Jason Merrill wrote:
> Thanks. Want to do regmove and sibcall, too? :)
Sibcall is trivial, btw. We cannot perform the transformation
iff there exists an EDGE_ABNORMAL_CALL edge out of the block.
Regmove is more work, as it needs to use the CFG at all. It's
easy to get at the information it wants though.
r~