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471398ffea
Adds loop expansions for known-size and unknown-sized memcpy calls, allowing the target to provide the operand types through TTI callbacks. The default values for the TTI callbacks use int8 operand types and matches the existing behaviour if they aren't overridden by the target. Differential revision: https://reviews.llvm.org/D32536 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307346 91177308-0d34-0410-b5e6-96231b3b80d8