Re: why some gcc/guality tests fail unless gcc built with -mtune=generic on x86_64? is there a GCC test suite 'enter GDB on failure' option?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 05/28/2018 08:19 AM, Jason Vas Dias wrote:
> Good day  -
> 
> I just noticed that with the gcc-{5,6,7} branches,
> when GCC is configured to build by default for the native machine
[ ... ]
Guality is highly dependent on the exact code generated.  A new or
removed instruction or reordering of instructions can cause failures.

At this point guality is best used as a regression suite.  ie, save a
run, make a change, make a new run and compare.

Trying to compare runs with different options isn't terribly interesting.

jeff



[Index of Archives]     [Linux C Programming]     [Linux Kernel]     [eCos]     [Fedora Development]     [Fedora Announce]     [Autoconf]     [The DWARVES Debugging Tools]     [Yosemite Campsites]     [Yosemite News]     [Linux GCC]

  Powered by Linux