Rollback changes r89516: Added two SubtargetFeatures::AddFeatures methods, which accept a comma-separated string or already parsed command line parameters as input, and some code re-factoring to use these new methods.

llvm-svn: 89893

Added two SubtargetFeatures::AddFeatures methods, which accept a comma-separated string or already parsed command line parameters as input, and some code re-factoring to use these new methods.

llvm-svn: 89516

Added getDefaultSubtargetFeatures method to SubtargetFeatures class which returns a correct feature string for given triple.

llvm-svn: 89236

llvm-svn: 79864

llvm-svn: 72335

llvm-svn: 45418

llvm-svn: 37768

feature is set, then the features in the implied list should be set also.
The opposite is also enforced: if a feature in the implied list isn't set,
then the feature that owns that implies list shouldn't be set either.

llvm-svn: 36756

llvm-svn: 32340

llvm-svn: 32333

llvm-svn: 27064

llvm-svn: 25661

CPU.

llvm-svn: 23974

llvm-svn: 23905

llvm-svn: 23893

use LowercaseString from StringExtras.h, remove extraneous space from help
output.

llvm-svn: 23891

'' is not a recognized processor for this target (ignoring processor)

instead of:

 is not a recognized processor for this target (ignoring processor)

llvm-svn: 23256

llvm-svn: 23222

llvm-svn: 23210

is to manage processor specific attributes from the command line.  See examples
of use in llc/lli and PowerPCTargetSubtarget.

llvm-svn: 23191