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2 Commits

Author SHA1 Message Date
Richard Osborne
83eab939a4 [XCore] Add dag combines for instructions that ignore some input bits. 
These instructions ignore the high bits of one of their input operands -
try and use this to simplify the code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202394 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-02-27 13:20:11 +00:00
Richard Osborne
ef174f733a [XCore] Provide information about known zero bits of resource instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202393 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-02-27 13:20:06 +00:00