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								 Evan Cheng | 05bdcbb1ae | Re-apply r97667 but with a little bit of thought put into the patch. This implements a special DenseMapInfo trait for DenseMap<MachineInstr*> that compare the value of the MachineInstr rather than the pointer value. Since the hashing and equality test functions ignore defs it's useful for doing CSE kind optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97678 91177308-0d34-0410-b5e6-96231b3b80d8 | 2010-03-03 23:27:36 +00:00 |  | 
			
				
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								 Dan Gohman | 319dfa3fb3 | Revert 97667. It broke a bunch of tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97673 91177308-0d34-0410-b5e6-96231b3b80d8 | 2010-03-03 22:40:03 +00:00 |  | 
			
				
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								 Evan Cheng | a054ae02fd | Move DenseMapInfo for MachineInstr* to MachineInstr.h git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97667 91177308-0d34-0410-b5e6-96231b3b80d8 | 2010-03-03 21:47:16 +00:00 |  | 
			
				
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								 Evan Cheng | 16b48b8a05 | Machine CSE work in progress. It's doing some CSE now. But implicit def of physical registers are getting in the way. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97664 91177308-0d34-0410-b5e6-96231b3b80d8 | 2010-03-03 21:20:05 +00:00 |  | 
			
				
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								 Evan Cheng | 6ba9554988 | Work in progress. Finding some cse now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97635 91177308-0d34-0410-b5e6-96231b3b80d8 | 2010-03-03 02:48:20 +00:00 |  | 
			
				
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								 Evan Cheng | c5bbba1e49 | Fix typo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97577 91177308-0d34-0410-b5e6-96231b3b80d8 | 2010-03-02 19:02:27 +00:00 |  | 
			
				
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								 Evan Cheng | c6fe333688 | Add skeleton of a machine level cse pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97543 91177308-0d34-0410-b5e6-96231b3b80d8 | 2010-03-02 02:38:24 +00:00 |  |