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idiom. r289538: Match load by bytes idiom and fold it into a single load r289540: Fix a buildbot failure introduced by r289538 r289545: Use more detailed assertion messages in the code ... r289646: Add a couple of assertions to the load combine code ... This DAG combine has a bad crash in it that is quite hard to trigger sadly -- it relies on sneaking code with UB through the SDAG build and into this particular combine. I've responded to the original commit with a test case that reproduces it. However, the code also has other problems that will require substantial changes to address and so I'm going ahead and reverting it for now. This should unblock us and perhaps others that are hitting the crash in the wild and will let a fresh patch with updated approach come in cleanly afterward. Sorry for any trouble or disruption! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289916 91177308-0d34-0410-b5e6-96231b3b80d8
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