llvm-project

2c27fb0e - [CIR][AArch64] Upstream narrowing-addition NEON builtins (#204989)

[CIR][AArch64] Upstream narrowing-addition NEON builtins (#204989) Related to https://github.com/llvm/llvm-project/issues/185382 CIR lowering for - narrowing-addition intrinsics (https://arm-software.github.io/acle/neon_intrinsics/advsimd.html#narrowing-addition) Port tests: - `clang/test/CodeGen/AArch64/neon_intrinsics.c` to `clang/test/CodeGen/AArch64/neon/add.c`