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Tim Northover
e1db6ac10b
AArch64: disallow x30 & x29 as the destination for indirect tail calls
As Ana Pazos pointed out, these have to be restored to their incoming values before a function returns; i.e. before the tail call. So they can't be used correctly as the destination register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210525 91177308-0d34-0410-b5e6-96231b3b80d8
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