optimization/10315: [3.2/3.3/3.4 regression] [powerpc] ICE: in extract_insn, at recog.c:2175

[Geoffrey Keating]

I'm not sure why this insn isn't being recognised, it should be a 
'movdf_hardfloat32'.
It's a valid machine instruction if pseudo-register 311 happens to be 
allocated to a pair of integer registers.
-- 
Geoff Keating <geoffk@apple.com>