[Bug rtl-optimization/52543] lower-subreg.c: code bloat of 300%-400% for multi-word memory splits

[gjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52543

Georg-Johann Lay <gjl at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Keywords|                            |FIXME

--- Comment #6 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2012-03-22 15:55:11 UTC ---
FIXME: It works for avr now, but just because that backend hacks around by
using UNSPEC instead of MEM.  This is legitimate because the affected
address-spaces read from Flash, i.e. from non-changing memory.  For respective
FIXMEs see avr.c and avr.md as introduced by the patches above.