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								 Stephen Lin | 55ec2218c4 | Start using CHECK-LABEL in some tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186163 91177308-0d34-0410-b5e6-96231b3b80d8 | 2013-07-12 14:54:12 +00:00 |  | 
			
				
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								 Stephen Lin | 3484da9479 | Only pass 'returned' to target-specific lowering code when the value of entire register is guaranteed to be preserved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180825 91177308-0d34-0410-b5e6-96231b3b80d8 | 2013-04-30 22:49:28 +00:00 |  | 
			
				
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								 Stephen Lin | 81fef0267b | Add more tests for r179925 to verify correct handling of signext/zeroext; strengthen condition check to require actual MVT::i32 virtual register types, just in case (no actual functionality change) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180138 91177308-0d34-0410-b5e6-96231b3b80d8 | 2013-04-23 19:42:25 +00:00 |  | 
			
				
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								 Stephen Lin | 2fdbbe307d | Extra paranoid test for r179925 (verify that tail calls are not generated to 'this'-returning constructors of objects with different 'this' pointers than the caller) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180032 91177308-0d34-0410-b5e6-96231b3b80d8 | 2013-04-22 17:23:49 +00:00 |  | 
			
				
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								 Stephen Lin | 456ca048af | Add CodeGen support for functions that always return arguments via a new parameter attribute 'returned', which is taken advantage of in target-independent tail call opportunity detection and in ARM call lowering (when placed on an integral first parameter). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179925 91177308-0d34-0410-b5e6-96231b3b80d8 | 2013-04-20 05:14:40 +00:00 |  |