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04ded924f3
The loop optimizers were assuming that scales > 1 were OK. I think this is actually a bug in TargetLoweringBase::isLegalAddressingMode(), since it seems to be trying to reject anything that isn't r+i or r+r, but it has no default case for scales other than 0, 1 or 2. Implementing the hook for z means that z can no longer test any change there though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187497 91177308-0d34-0410-b5e6-96231b3b80d8
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