[Bug target/11052] [3.3 regression] [arm] noce_process_if_block() can loose REG_INC notes
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11052
------- Additional Comments From rth@redhat.com 2003-06-03 16:12 -------
Subject: Re: [3.3 regression] [arm] ICE (segfault) compiling xfree86
On Tue, Jun 03, 2003 at 04:13:09PM +0100, Richard Earnshaw wrote:
> 1) Don't allow this transformation if the insns have REG_INC notes (this
> is overkill, but safe).
This I'd recommend for 3.3, if it's affected.
> 2) Copy any REG_INC notes from *one* of the source insns.
This shouldn't be hard, I wouldn't expect.
> 3) Something else I've not thought of... :-)
Build a new REG_INC note after scanning for autoinc codes?
r~
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