[CodeGen] Move X86 tests under the X86 directory

llvm-svn: 360029

diff --git a/llvm/test/CodeGen/avx512bf16-intrinsics.ll b/llvm/test/CodeGen/X86/avx512bf16-intrinsics.ll
similarity index 100%
rename from llvm/test/CodeGen/avx512bf16-intrinsics.ll
rename to llvm/test/CodeGen/X86/avx512bf16-intrinsics.ll

diff --git a/llvm/test/CodeGen/avx512bf16-vl-intrinsics.ll b/llvm/test/CodeGen/X86/avx512bf16-vl-intrinsics.ll
similarity index 100%
rename from llvm/test/CodeGen/avx512bf16-vl-intrinsics.ll
rename to llvm/test/CodeGen/X86/avx512bf16-vl-intrinsics.ll