Re: Bug#556790: gcc-4.3: unrecognizable insn on alpha
On Tue, Dec 1, 2009 at 3:08 PM, Michael Cree <mcree@orcon.net.nz> wrote:
> On 18/11/2009, at 9:31 AM, Kurt Roeckx wrote:
>
>> Package: gcc-4.3
>> Version: 4.3.4-5
>>
>> Hi,
>>
>> I recently started seeing several cases of gcc giving an error
>> message like this:
>> packet-l2tp.c:1680: error: unrecognizable insn:
>> (insn 419 86 84 9 packet-l2tp.c:1585 (set (reg:DI 200)
>> (ne:SI (reg:DI 76 [ prephitmp.1208 ])
>> (const_int 0 [0x0]))) -1 (nil))
>> packet-l2tp.c:1680: internal compiler error: in extract_insn, at
>> recog.c:2001
>
>
> Would this be http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42113 ??
Hmm. The patch that _uncovered_ (not caused) the regression was
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8603
It was included in >4.3.4 (that is, not in 4.3.4), 4.4.2, and the 4.5
branch, so I don't think it could be 42113, but it certainly couldn't
hurt to test.
I'd be nice to know what this code is that triggers the error.
Matt
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