[PATCH] Arm: Don't define a label twice with two setjmps in a function.

[Matthias Braun]

That's because for some reason the MC layer does not emit directional labels if you use the directional label API but creates new labels with unique names instead.

> On May 7, 2015, at 11:14 AM, Jim Grosbach <grosbach at apple.com> wrote:
> 
> 
>> On May 7, 2015, at 11:10 AM, Matthias Braun <matze at braunis.de> wrote:
>> 
>> 
>>> On May 7, 2015, at 7:37 AM, John Brawn <john.brawn at arm.com> wrote:
>>> 
>>>> Simply do what the comment in ARMAsmPrinter says and use directional labels.
>>> 
>>> 
>>> Which comment would that be? I had a look in both ARMAsmPrinter.h and ARMAsmPrinter.cpp and could find no mention of directional labels.
>> The comment immediately above the code sequence uses directional label syntax:
>> 
>>   // Two incoming args: GPR:$src, GPR:$val
>>   // mov $val, pc
>>   // adds $val, #7
>>   // str $val, [$src, #4]
>>   // movs r0, #0
>>   // b 1f
>>   // movs r0, #1
>>   // 1:
>> 
> 
> 
> The regex in the testcase doesn’t seem to be looking for that form?  "[[LABEL:L[a-zA-Z0-9]+]]"
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