[project @ 2001-12-12 18:12:45 by sewardj]
Make the sparc native code generator work again after recent
primop hackery.
* Track the change from PrimOp to MachOp at the Stix level.
* Teach the sparc insn selector how to generate 64-bit code.
* Fix various bogons in sparc {Int,Double,Float} <-> {Int,Double,Float}
conversions which only happened to generate correct code by
accident, so far.
* Synthesise BaseReg from &MainCapability.r on archs which do not
have BaseReg in a regiser (eg sparc :)
At the moment {add,sub,mul}Int# are not implemented. To be fixed.