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2017 Dec 20
3
Hoisting in the presence of volatile loads.
Hi Krzysztof, Could I get some background info on reasoning about hoisting in the presence of volatile loads? I was looking at this testcase: test/Transforms/LICM/volatile-alias.ll Context: MemorySSA treats volatile loads as defs. I'm looking to better understand expected behavior in the presence of volatile accesses. More context: https://reviews.llvm.org/D40375. Thanks in advance, Alina