Chris Lattner eca0c5c379 Remove explicit check for: not (not X) = X, it is already handled because xor is commutative
- InstCombine: (X & C1) ^ C2 --> (X & C1) | C2 iff (C1&C2) == 0
  - InstCombine: (X | C1) ^ C2 --> (X | C1) & ~C2 iff (C1&C2) == C2


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7282 91177308-0d34-0410-b5e6-96231b3b80d8
2003-07-23 21:37:07 +00:00
2003-06-30 22:13:48 +00:00
2003-07-21 19:23:31 +00:00
2003-07-23 21:36:01 +00:00
2003-07-21 21:58:16 +00:00
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