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222f9e97f6
Strengthen tests of storing frame indices. Right now this just creates irrelevant scheduling changes. We don't want to have multiple frame index operands on an instruction. There seem to be various assumptions that at least the same frame index will not appear twice in the LocalStackSlotAllocation pass. There's no reason to have this happen, and it just makes it easy to introduce bugs where the immediate offset is appplied to the storing instruction when it should really be applied to the value being stored as a separate add. This might not be sufficient. It might still be problematic to have an add fi, fi situation, but that's even less unlikely to happen in real code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264200 91177308-0d34-0410-b5e6-96231b3b80d8
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