[project @ 2000-07-11 15:26:33 by sewardj]
Fix up the sparc native code generator. Mostly dull stuff. Notable changes: * Cleaned up ccall mechanism for sparc somewhat. * Rearranged assignment of sparc floating point registers (includes/MachRegs.h) so the NCG's register allocator can handle the double-single pairing issue without modification. Split VirtualRegF into VirtualRegF and VirtualRegD, and split RcFloating into RcFloat and RcDouble. Net effect is that there are now three register classes -- int, float and double, and we pretend that sparc has some float and some double real regs. * (A fix for all platforms): propagate MachFloats through as StFloats, not StDoubles. Amazingly, until now literal floats had been converted to and treated as doubles, including in ccalls.