series of identical commands, handle them all with one switch. In the case
of the x86 at&t asm printer, only 3 switches are needed for all instructions.
llvm-svn: 29184
based and less switch-statements-with-hundreds-of-cases based. This shrinks
the x86 asmprinters to about 1/3 their previous size.
Other improvements coming.
llvm-svn: 29177
