> Fixed by disabling the relevant alternatives in the few patterns using the
> constraint and replacing it with a simple r constraint. This yields a clean
> C testsuite in 32-bit mode.
There was a thinko in the patch: the U constraint cannot be just replaced with
r as-is, because it is matched w
As diagnosed by DaveM, there is a bad interaction between the U constraint
used by the SPARC port to represent "aligned" double-word registers in 32-bit
mode and LRA; more precisely, LRA doesn't play as nice as reload with it
because it's not declared with define_register_constraint.
Fixed by d
