Added a brief description of the libc-shared-tests target to the Building and Testing page. This target allows running tests for shared standalone components like math primitives without the full libc runtime.
LLVM libc ========= This directory and its subdirectories contain source code for llvm-libc, a retargetable implementation of the C standard library. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.