llvm dev - Jan 2015 - [LLVMdev] ARM regression between r223766 and r223925

On Fri, Jan 30, 2015 at 7:20 PM, Renato Golin <renato.golin at linaro.org>
wrote:
> On 30 January 2015 at 17:18, İsmail Dönmez <ismail at donmez.ws>
wrote:
>> My analysis was completely wrong because I had -no-integrated-as
>> sneaked in libcxxabi CMakeLists.txt and then somehow I reverted it
>> which showed me the initial failure. The Neon failure is completely
>> unrelated which I figured out after trying to bootstrap with
>> -mfpu=neon.
>
> No worries. Do you remember what version you saw the failure for the first
time?
No idea because I already had workarounded the original issue with
-no-integrated-as. BUT my build script log shows that I successfully
cross-compiled with NEON on December 4 2014. I usually do basic
testing of those builds on ARMv7. So, I suggest trying to bootstrap
r223339  with NEON. Thats the last commit for Dec 3.

ismail

On 30 January 2015 at 17:23, İsmail Dönmez <ismail at donmez.ws>
wrote:
> No idea because I already had workarounded the original issue with
> -no-integrated-as. BUT my build script log shows that I successfully
> cross-compiled with NEON on December 4 2014. I usually do basic
> testing of those builds on ARMv7. So, I suggest trying to bootstrap
> r223339  with NEON. Thats the last commit for Dec 3.
Right, I've already checked r223477 (5th Dec) to be green, so that
should do for the good end.

Since you reported on the 13th Dec that "trunk" was broken, I'm
assuming you checked out and built, which would put the bad side
earlier than the 14th Dec.

It's 9 days to look at, but at least it's better than 6 months I was
going for in the beginning... :/

thanks!
-renato

On Fri, Jan 30, 2015 at 7:27 PM, Renato Golin <renato.golin at linaro.org>
wrote:
> On 30 January 2015 at 17:23, İsmail Dönmez <ismail at donmez.ws>
wrote:
>> No idea because I already had workarounded the original issue with
>> -no-integrated-as. BUT my build script log shows that I successfully
>> cross-compiled with NEON on December 4 2014. I usually do basic
>> testing of those builds on ARMv7. So, I suggest trying to bootstrap
>> r223339  with NEON. Thats the last commit for Dec 3.
>
> Right, I've already checked r223477 (5th Dec) to be green, so that
> should do for the good end.
Nice!
> Since you reported on the 13th Dec that "trunk" was broken,
I'm
> assuming you checked out and built, which would put the bad side
> earlier than the 14th Dec.
Indeed.
> It's 9 days to look at, but at least it's better than 6 months I
was
> going for in the beginning... :/
Thanks for debugging this :)