llvm-project

435bafd0 - [CIR][X86] Implement lowering for AVX512 mask builtins (#169774)

[CIR][X86] Implement lowering for AVX512 mask builtins (#169774) This patch adds CIR codegen support for AVX512 mask operations on X86, including kadd, kand, kandn, kor, kxor, knot, and kmov in all supported mask widths. Each builtin now lowers to the expected vector<i1> form and bitcast representations in CIR, matching the semantics of the corresponding LLVM intrinsics.