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4eb2d228e9
Sicne MBB->computeRegisterLivenes() returns Dead for sub regs like s0, d0 is used in vpop instead of updating sp, which causes s0 dead before its use. This patch checks the liveness of each subreg to make sure the reg is actually dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204411 91177308-0d34-0410-b5e6-96231b3b80d8
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