/usr/lib/llvm-3.4/include/polly/ is in libclang-common-3.4-dev 1:3.4.2-13.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/llvm-3.4/include/polly/CodeGen/
/usr/lib/llvm-3.4/include/polly/CodeGen/BlockGenerators.h
/usr/lib/llvm-3.4/include/polly/CodeGen/Cloog.h
/usr/lib/llvm-3.4/include/polly/CodeGen/CodeGeneration.h
/usr/lib/llvm-3.4/include/polly/CodeGen/IslAst.h
/usr/lib/llvm-3.4/include/polly/CodeGen/LoopGenerators.h
/usr/lib/llvm-3.4/include/polly/CodeGen/PTXGenerator.h
/usr/lib/llvm-3.4/include/polly/CodeGen/Utils.h
/usr/lib/llvm-3.4/include/polly/Config/
/usr/lib/llvm-3.4/include/polly/Config/config.h
/usr/lib/llvm-3.4/include/polly/Dependences.h
/usr/lib/llvm-3.4/include/polly/LinkAllPasses.h
/usr/lib/llvm-3.4/include/polly/MayAliasSet.h
/usr/lib/llvm-3.4/include/polly/Options.h
/usr/lib/llvm-3.4/include/polly/RegisterPasses.h
/usr/lib/llvm-3.4/include/polly/ScheduleOptimizer.h
/usr/lib/llvm-3.4/include/polly/ScopDetection.h
/usr/lib/llvm-3.4/include/polly/ScopInfo.h
/usr/lib/llvm-3.4/include/polly/ScopLib.h
/usr/lib/llvm-3.4/include/polly/ScopPass.h
/usr/lib/llvm-3.4/include/polly/Support/
/usr/lib/llvm-3.4/include/polly/Support/GICHelper.h
/usr/lib/llvm-3.4/include/polly/Support/SCEVValidator.h
/usr/lib/llvm-3.4/include/polly/Support/ScopHelper.h
/usr/lib/llvm-3.4/include/polly/TempScopInfo.h