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* Add combiner patterns to more effectively utilize the BFI (bitfield insert)Jim Grosbach2010-07-171-0/+23
| | | | | | | | | instruction for non-constant operands. This includes the case referenced in the README.txt regarding a bitfield copy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108608 91177308-0d34-0410-b5e6-96231b3b80d8
* Add basic support to code-gen the ARM/Thumb2 bit-field insert (BFI) instructionJim Grosbach2010-07-161-0/+17
and a combine pattern to use it for setting a bit-field to a constant value. More to come for non-constant stores. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108570 91177308-0d34-0410-b5e6-96231b3b80d8