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Author trex58
Recipients facundobatista, loewis, mark.dickinson, rhettinger, skrah, tim.peters, trex58
Date 2016-08-11.15:36:11
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1470929772.14.0.636371386215.issue27725@psf.upfronthosting.co.za>
In-reply-to
Content 
With XLC v13 -O2, using -qalias=noansi for building Objects/longobject.o only and not for all the other .o files did fix the 10 more failed tests I see with -O2 compared to -O0 (7-8 failed tests).
So, ANSI-aliasing in Objects/longobject.c is the issue.

About -fwrapv , I have to find an equivalent for XLC.

I've given a first try with GCC 4.8.4 . I've got about 44 failed tests compared to 7-8 with XLC. To be improved.
History
Date User Action Args
2016-08-11 15:36:12trex58setrecipients: + trex58, tim.peters, loewis, rhettinger, facundobatista, mark.dickinson, skrah
2016-08-11 15:36:12trex58setmessageid: <1470929772.14.0.636371386215.issue27725@psf.upfronthosting.co.za>
2016-08-11 15:36:12trex58linkissue27725 messages
2016-08-11 15:36:11trex58create