message: [XLA:CPU] Stop LLVM from messing with pow for now
  It translates pow(float, int) into __powisf2 since
  we don't have that symbol around.
diff: @@ -200,6 +200,12 @@ void CompilerFunctor::AddTargetInfoPasses(
  absl::make_unique<llvm::TargetLibraryInfoImpl>(target_triple);
  target_library_info_impl->addVectorizableFunctions(
  VectorFunctionsForTargetLibraryInfoImpl());
  +
  + // TODO(b/136651482): Disable pow(f) so LLVM doesn't transform it into powi.
  + // It would be better to provide our own powi.
  + target_library_info_impl->setUnavailable(llvm::LibFunc_pow);
  + target_library_info_impl->setUnavailable(llvm::LibFunc_powf);
  +
  passes->add(
  new llvm::TargetLibraryInfoWrapperPass(*target_library_info_impl));
  passes->add(createTargetTransformInfoWrapperPass(
  