GCC 7.2 Compiler Released

[phoronix]

Phoronix: GCC 7.2 Compiler Released

Richard Biener of SUSE has just announced the release of the GNU Compiler Collection 7.2...

http://www.phoronix.com/scan.php?page=news_item&px=GCC-7.2-Released

[FireBurn]

I'm still having issues with GCC 7 (this release included) building LLVM & Mesa. When using -march=native (which turns on -mbmi) the 32bit binaries created just segfault

It can be worked around by passing -mno-bmi, there are two bugs open on bugs.fdo and I've opened a GCC bug too. I've not been able to create a small test case for it and the issue goes away when debugging is turned on

If there are any experts around that could take a look I'd be grateful

https://bugs.freedesktop.org/show_bug.cgi?id=101881

https://bugs.freedesktop.org/show_bug.cgi?id=101484

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81763

For the meantime I've switched my system back to GCC 6.4

[Brane215]

It compiled with existing patches for 7.1.0 fine on Gentoo. I also compiled latest kernel with it. Everything seems to be fine.
Will have to try it on chromium, which used to die with gcc-7.1.0. I think it was something to do with nodejs...

[cj.wijtmans]

https://gcc.gnu.org/ml/gcc-bugs/2015-11/msg01568.html

[timofonic]

https://gcc.gnu.org/ml/gcc-bugs/2015-11/msg01568.html

A unresolved two year bug in a compiler? That looks quite bad. Who's to blame? Sourcera(what's the name? I forgot and going to sleep right now)/Red Hat? :P

[cj.wijtmans]

A unresolved two year bug in a compiler? That looks quite bad. Who's to blame? Sourcera(what's the name? I forgot and going to sleep right now)/Red Hat? :P

its both a bug in the software and in the compiler. so probably they blame eachother and tell eachother to fix it and nothing happens.

[FireBurn]

It compiled with existing patches for 7.1.0 fine on Gentoo. I also compiled latest kernel with it. Everything seems to be fine.
Will have to try it on chromium, which used to die with gcc-7.1.0. I think it was something to do with nodejs...

I had my whole system compiled with GCC 7.1 (and then GCC 7.2 RC1 & 2) the only issues I saw were in the 32bit stuff needed for wine & Steam which were using LLVM/radeonsi

[sdack]

https://gcc.gnu.org/ml/gcc-bugs/2015-11/msg01568.html

I'm using gcc 7 for a while now and use LTO almost all the time and across multiple libraries. I have no issues compiling PHP with -flto (gcc-7.2.1, php-7.1.8, binutils-2.29.51). It runs the PHP testsuite without a single error. It's x86-64 though and not PPC.