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Don't give up on coalescing A and B when we find
authorRafael Espindola <rafael.espindola@gmail.com>
Thu, 30 Jun 2011 22:24:13 +0000 (22:24 +0000)
committerRafael Espindola <rafael.espindola@gmail.com>
Thu, 30 Jun 2011 22:24:13 +0000 (22:24 +0000)
commitc747acb8d97d4df51d738383b49b8115519b88fb
tree3178c1d957dc22f007e6dd4e09df9e7118b90432
parenta8cca80d4ac9ad94223b31e1c2203a30825529ed
Don't give up on coalescing A and B when we find

A = X
B = X

Instead, proceed as if we had found

A = X
B = A

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134199 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/RegisterCoalescer.cpp