Evan Cheng
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fccbd0afc6
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Fix PR4986. "r1024 = insert_subreg r1024, undef, 2" cannot be turned in an implicit_def. Instead, it's an identity copy so it should be eliminated. Also make sure to update livevariable kill information.
llvm-svn: 82436
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2009-09-21 04:32:32 +00:00 |