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* Revert 97667. It broke a bunch of tests.Dan Gohman2010-03-031-0/+63
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97673 91177308-0d34-0410-b5e6-96231b3b80d8
* Move DenseMapInfo for MachineInstr* to MachineInstr.hEvan Cheng2010-03-031-63/+0
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* Machine CSE work in progress. It's doing some CSE now. But implicit def of ↵Evan Cheng2010-03-031-24/+61
| | | | | | physical registers are getting in the way. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97664 91177308-0d34-0410-b5e6-96231b3b80d8
* Work in progress. Finding some cse now.Evan Cheng2010-03-031-4/+88
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97635 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo.Evan Cheng2010-03-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97577 91177308-0d34-0410-b5e6-96231b3b80d8
* Add skeleton of a machine level cse pass.Evan Cheng2010-03-021-0/+124
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97543 91177308-0d34-0410-b5e6-96231b3b80d8