[Bug rtl-optimization/31944] [4.1/4.2/4.3 Regression] Endless loop while building a 64-bit 2.6.20 kernel

["ebotcazou at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #27 from ebotcazou at gcc dot gnu dot org  2008-01-11 18:09 -------
> Obviously, the problem is that the hash of reg 66 is changed after a hash
> table element is created for it in the bucket for the original hash.  I have
> no idea yet whether this is expected, or if not, what is going wrong.

More precisely the QTY is changed after the reg has been entered with a hash.
This is expected, but the reg must be removed from the table.  The problem
here is that the reg is a pseudo and has been entered twice, for SImode and
DImode, but is only removed once.  Tentative fix to be attached.


-- 

ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
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                 CC|                            |ebotcazou at gcc dot gnu dot
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31944

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