[llvm-commits] CVS: llvm/test/Transforms/LoopRotate/PhiRename-1.ll

[Jeff Cohen]

Reid Spencer wrote:
> On Mon, 2007-04-09 at 18:40 -0500, Devang Patel wrote:
>   
>> Changes in directory llvm/test/Transforms/LoopRotate:
>>
>> PhiRename-1.ll updated: 1.1 -> 1.2
>> ---
>> Log message:
>>
>> Add check for opt crash.
>>     
>
> This idiom is becoming more and more prevalent. While it works, its also
> doubling the runtime of each test its used in. I'm wondering if we could
> invest in a "notgrep" script (since we're invoking "not" anyway) that
> would fail on empty input. Is this sufficient to avoid having to do
> things twice?

It won't work.  The command can crash after producing some output, but 
still not producing a line being grepped for.
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