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2b951fda8f
Previously, LLVM had no knowledge that these instructions actually modified their address register: fine if they never end up in CodeGen, but when I'd rather like to write some patterns for them it becomes a disaster. The change is mostly straightforward, I think the most significant design decision was to *always* put the address write-back first. This allows loads and stores to be accessed more uniformly, for example permitting the continued sharing of the InstAlias definitions. I also discovered that the custom Decode logic is no longer needed, so I removed it. No tests, because there should be no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207839 91177308-0d34-0410-b5e6-96231b3b80d8
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