* config/rs6000/darwin-asm.h: New file, 32/64-bit assembly macros
        formerly in darwin-tramp.asm.
        * config/rs6000/darwin-tramp.asm: Include darwin-asm.h.
        * config/rs6000/darwin-fpsave.asm: Use 32/64-bit macros.
        * config/rs6000/t-darwin: Add dependencies.

From-SVN: r91960