llvm-project

b885cfbb - [LFI][AArch64] Add guard elimination optimization (#204693)

[LFI][AArch64] Add guard elimination optimization (#204693) This adds support for the guard elimination optimization to the AArch64 LFI rewriter. Redundant guards (`add x28, x27, wN, uxtw` instructions) will be skipped when possible. See the LFI.rst documentation for an example of the optimization.