llvm-3.3 is ancient and we'd like to remove it. Please either bump opengtl if possible, patch in llvm-3.5+ support or lastrite it.
Masked for removal. https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7dcddcc3c89915713f7cb6e5da1eb42e72a22e69
Removed. https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=19d47b68870f825e3562b3facd7b487f1b910aa6