<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><span style="white-space: pre-wrap; font-size: 14px; line-height: 1.7;">At 2013-09-03 00:12:56,"Tobias Grosser" <tobias@grosser.es> wrote:</span><br><pre>>On 09/02/2013 07:44 AM, Star Tan wrote:
>> At 2013-09-02 16:22:28,"Tobias Grosser" <tobias@grosser.es> wrote:
>>
>>> On 09/01/2013 08:02 PM, Star Tan wrote:
>>>> Hi all,
>>>>
>>>>
>>>> Attached patch file to update lit config for Cloog. Without it, Polly always skips Cloog testings when we run "make check-polly".
>>>
>>> Dear Star Tan,
>>>
>>> thanks a lot for the patch. It looks very reasonable, but I am wondering
>>> why it was not needed before or what problem it fixes exactly. Could you
>>> add some information about this to the commit message.
>>>
>> I am not sure why it was not needed before; maybe it has never worked well before. The problem is that Polly never executes Cloog specific testcases no matther whether Cloog is found or not. I find this problem because I put a new testcase in test/Cloog/CodeGen/, but it is never executed.
>> @Sebastian, you added the Cloog directory in r169159, including all testcases and the lit.local.cfg. The lit.local.cfg ensures that cloog specific testcases are executed only with CLOOG_FOUND by adding the following lit commands in test/Cloog/lit.local.cfg:
>> cloog = config.root.cloog_found
>> if cloog not in ['TRUE', 'true'] :
>> config.unsupported = True
>> However, there are two problems:
>> First, since the cloog_found is set as "@CLOOG_FOUND@", I think the following "sed" command should be added into Makefile:
>> sed -e "s#@CLOOG_FOUN@#$(CLOOG_FOUND)#g"
>> Unfortunately such command is missed in current Polly. If it is not needed, I am curious how could Polly determine the value of @CLOOG_FOUND@ ?
>> Second, even if we add the "sed" command in Makefile, the config.root.cloog_found would be set as "yes" or null, but Polly currently compares it with "TRUE" or "true", which thus always fails and the Cloog testcases will never be executed.
>> @Sebastian, could you do me a favor to have a review of this problem? FYI, I have re-attached the patch file.
>
>This is surprising. Even without your patch my test/lit.site.cfg file
>contains:
>
>config.enable_gpgpu_codegen = ""
>config.cloog_found = "TRUE"
>
>(With CLOOG enabled and GPGPU_codegen disabled). Also, the CLooG test
>are run (and are failing) as expected.
>
>I think it would be good to understand why this different behaviour can
>be observed. Sebastian, any ideas?
>
Interesting! In my computer, it shows as:
</pre><pre>config.enable_gpgpu_codegen = "@CUDALIB_FOUND@"
config.cloog_found = "@CLOOG_FOUND@"</pre><pre>The source version is:</pre><pre>LLVM: r189730; <span style="font-size: 14px; line-height: 1.7;">Polly: r189177; </span><span style="font-size: 14px; line-height: 1.7;">Clang:r189731</span></pre><pre>Best,</pre><pre>Star Tan</pre></div>