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authorJakob Stoklund Olesen <stoklund@2pi.dk>2012-06-23 02:23:00 +0000
committerJakob Stoklund Olesen <stoklund@2pi.dk>2012-06-23 02:23:00 +0000
commit7806c0778f22552ebe6711f3dc43887dc6097bfc (patch)
tree2eb6e70baa395b80e298fba8b94c4e131b73e3c2 /lib/CodeGen/LLVMBuild.txt
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Teach LiveVariables to handle <undef> operands.
It's simple: Don't treat <undef> operands as uses, and don't assume a virtual register has a defining instruction unless a real use has been seen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159061 91177308-0d34-0410-b5e6-96231b3b80d8
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