2 Commits

Author	SHA1	Message	Date
Jim Grosbach	b97e2bbe32	Add combiner patterns to more effectively utilize the BFI (bitfield insert) ... instruction for non-constant operands. This includes the case referenced in the README.txt regarding a bitfield copy. llvm-svn: 108608	2010-07-17 03:30:54 +00:00
Jim Grosbach	11013eda5a	Add basic support to code-gen the ARM/Thumb2 bit-field insert (BFI) instruction ... and a combine pattern to use it for setting a bit-field to a constant value. More to come for non-constant stores. llvm-svn: 108570	2010-07-16 23:05:05 +00:00