llvm-project

9eb3aee1 - [CostModel][AArch64] Model cost of extract.last.active intrinsic (clastb) (#165739)

[CostModel][AArch64] Model cost of extract.last.active intrinsic (clastb) (#165739) Adds some aarch64 cost model tests for extract.last.active, and produces a lower cost when SVE is available (expecting clastb to be generated).