llvm-svn: 11892

MRegisterInfo::is{Physical,Virtual}Register.

llvm-svn: 11849

to objects.

llvm-svn: 11840

allocator.

The implementation is completely rewritten and now employs several
optimizations not exercised before. For example for 164.gzip we have
997 loads and 699 stores vs the 1221 loads and 880 stores we have
before.

llvm-svn: 11798

251 (providing a generic machine code rewriter/spiller).

llvm-svn: 11780