Fix Blackfin reload failure with PDImode
Bernd Schmidt
bernds_cb1@t-online.de
Thu Sep 13 17:41:00 GMT 2007
PDImode is used to represent the Blackfin's 40-bit accumulators. We
don't allow any other registers to hold PDImode values (something that
could arguably be changed), and we need a secondary reload to move data
between the accumulators and memory. The problem is that we didn't
define a suitable pattern to do this - the secondary reload currently
has PDImode, and there isn't a valid DREG for that mode.
Fixed with this patch, committed.
Bernd
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