Extended Description

In a recent 10.0 branch snapshot build with polly enabled, trying to use polly the way it is described in the polly man page doesn't work:

$ clang -O3 -mllvm -polly test.c
clang (LLVM option parsing): Unknown command line argument '-polly'. Try: 'clang (LLVM option parsing) --help'
clang (LLVM option parsing): Did you mean '--color'?

The problem is that the plugin isn't loaded automatically -- loading the plugin manually "fixes" it.

$ clang -Xclang -load -Xclang LLVMPolly.so -O3 -mllvm -polly ~/test.c
[works]

Either autoload should be restored, or the polly man page should be updated to mention the plugin needs to be loaded.