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f06f6f50e9
ARM targets with NEON units have access to aligned vector loads and stores that are potentially faster than unaligned operations. Add support for spilling the callee-saved NEON registers to an aligned stack area using 16-byte aligned NEON loads and store. This feature is off by default, controlled by an -align-neon-spills command line option. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147211 91177308-0d34-0410-b5e6-96231b3b80d8
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