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Jiangning Liu 61519cd699 Optimize sext/zext insertion algorithm in back-end. 
With this optimization, we will not always insert zext for values crossing
basic blocks, but insert sext if the users of a value crossing basic block
has preference of sign predicate.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218101 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-19 05:30:35 +00:00
..
llvm Optimize sext/zext insertion algorithm in back-end. 2014-09-19 05:30:35 +00:00
llvm-c [C API] Make the 'lower switch' pass available via the C API. 2014-09-11 21:32:32 +00:00