[llvm-dev] opt with Polly doesn't find the passes

Frank Winter via llvm-dev llvm-dev at lists.llvm.org
Wed Feb 3 08:16:59 PST 2016

On 02/03/2016 11:06 AM, Tobias Grosser wrote:
> On 02/03/2016 04:46 PM, Frank Winter via llvm-dev wrote:
>> On 02/03/2016 10:41 AM, Tobias Grosser wrote:
>>> On 02/03/2016 04:37 PM, Frank Winter wrote:
>>>> Hi Tobias,
>>>> I tried to invoke other passes and none of them are available, e.g.:
>>>> ~/toolchain/install/llvm-3.8/bin/opt -load
>>>> ~/toolchain/install/llvm-3.8/lib/libPolly.so -polly-cleanup
>>>> opt: Unknown command line argument '-polly-cleanup'.  Try:
>>>> '/home/fwinter/toolchain/install/llvm-3.8/bin/opt -help'
>>>> opt: Did you mean '-polly-tiling'?
>>> I assume -polly-cleanup still shows in -help-hidden?
>> No, it doesn't show. It never did. It looks to me that only the clang
>> options show in -help-hidden but not the passes. Can that be right?
> No, it can not. Interesting observation.
>>>> I am just shooting around hoping to get a clue what's going on...
>>>> On thing.. I recall reading the polly documentation that there was the
>>>> option to link opt statically with the polly library which I did not
>>>> select. But that's likely not the problem since a lot of polly options
>>>> are apparently there.
>>>> Out of ideas for now.
>>> This is surprising, indeed.
>>> The option is: LINK_POLLY_INTO_TOOLS:BOOL=ON. It might be worth giving
>>> it a try.
>>> What ubuntu version are you on precisely? I can try the 3.8 branch
>>> tonight myself.
>> Ubuntu 14.04 LTS x86-64.
> Thanks. If you have cycles to try a LINK_POLLY_INTO_TOOLS:BOOL=ON build
> on your side, this would be great.
> Another data-point that might be of help is to just run the script at
> http://polly.llvm.org/get_started.html to install everything. This
> installs trunk the way it is tested and run by us day-to-day (myself
> using Ubuntu x86-64). This should be the most basic test that should work.

The polly.sh script builds LLVM with static linkage and thus would 
create a libPolly.a, right? This cannot be loaded into 'opt' nor would 
'opt' be linked with polly. I'd need a polly-enabled opt.

I can try and build trunk (instead of the release_38 branch).


> Best,
> Tobias

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