[LLVMdev] make check-lit + grep escape characters

Stepan Dyatkovskiy stpworld at narod.ru
Thu May 24 00:44:26 PDT 2012


I just want to update test/Transforms/LowerSwitch/feature.ll that 
already uses grep.
It uses grep + count, probably due to shorter construction.

-Stepan.

Eric Christopher wrote:
>
> On May 24, 2012, at 12:12 AM, Stepan Dyatkovskiy wrote:
>
>> Hi all. I found that if you want to use grep with escape characters in
>> lit, you should pass it within the double slash (\\). Since the first
>> one is captured by python scripts and the second one by grep.
>> E.g. if you want to capture "grep icmp ule" you should pass
>> "grep icmp\\ ule"
>>
>> So I'm going to commit the test with strings like this. How stable this
>> feature in lit?
>
> Why are you using grep and not FileCheck?
>
> -eric




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