llvm dev - Jul 2019 - LLVM Releases

Thanks.  More below.
> On Jul 3, 2019, at 12:06 PM, Justin Clift <justin at postgresql.org>
wrote:
> 
> Not sure personally, as I've not touched the libcxx source before. 
Looking
> at line 876 for libcxx/include/chrono, gives this:
> 
> 
https://github.com/llvm/llvm-project/blob/d2298e74235598f15594fe2c99bbac870a507c59/libcxx/include/chrono#L876
<https://github.com/llvm/llvm-project/blob/d2298e74235598f15594fe2c99bbac870a507c59/libcxx/include/chrono#L876>
> 
> Nothing is obviously weird there though.  Not sure where the complained
about
> constant is coming from, but if you can figure out it's source location
you
> should be able to use "git blame" to determine the commit which
added it.
> 
> And (in theory) that should have info in it explaining the where/why of it.
;)
> 
> 
>> Is there some compiler that would work?
> 
> I used gcc 4.8.5 to compile LLVM ~8.0.1-rc2 on CentOS 7 AMD64 not long ago,
> which worked ok.  That was using cmake, with these specific options (in
case
> that's useful):
 
I’ve installed it successfully on both x86 and ARM.  It’s only on POWER9 
(ppc641e)  that it fails.
That one is not in your TARGETS_TO_BUILD list, alas.

	Thanks,
		Marty

> 
>  $ mkdir $HOME/local/source
>  $ cd $HOME/local/source
>  $ git clone -b release/8.x https://github.com/llvm/llvm-project
<https://github.com/llvm/llvm-project>
>  $ mkdir build
>  $ cd build
> 
>  $ cmake \
>  -G Ninja \
>  -DCMAKE_INSTALL_PREFIX=/opt/llvm8 \
>  -DCMAKE_BUILD_TYPE=Release \
>  -DLIBCLANG_BUILD_STATIC=ON \
>  -DLLVM_CCACHE_BUILD=ON \
>  -DLLVM_CCACHE_DIR=$HOME/local/source/ccache \
>  -DLLVM_ENABLE_ASSERTIONS=OFF \
>  -DLLVM_ENABLE_LIBCXX=ON \
>  -DLLVM_ENABLE_PROJECTS='clang;lld' \
>  -DLLVM_OPTIMIZED_TABLEGEN=ON \
>  -DLLVM_TARGETS_TO_BUILD='X86;ARM;AArch64;WebAssembly' \
>  $HOME/local/source/llvm-project/llvm
> 
>  $ ninja-build
> 
> Maybe give that a shot, and if it builds ok, it should be enough of the
> compiler to be useful, or for then building the libcxx stuff you're
after.
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On 2019-07-04 11:19, Marty Itzkowitz wrote:
<snip>
>>> Is there some compiler that would work?
>> 
>> I used gcc 4.8.5 to compile LLVM ~8.0.1-rc2 on CentOS 7 AMD64 not long 
>> ago,
>> which worked ok.  That was using cmake, with these specific options 
>> (in case
>> that's useful):
> 
> I’ve installed it successfully on both x86 and ARM.  It’s only on
> POWER9  (ppc641e)  that it fails.
> That one is not in your TARGETS_TO_BUILD list, alas.
Good point.  Probably the best approach here will be to file a bug
report for the POWER9 architecture, so someone looks to solve the
problem.

   https://bugs.llvm.org

+ Justin

Den tors 4 juli 2019 kl 18:04 skrev Justin Clift via llvm-dev
<llvm-dev at lists.llvm.org>:
>
> On 2019-07-04 11:19, Marty Itzkowitz wrote:
> <snip>
> >>> Is there some compiler that would work?
> >>
> >> I used gcc 4.8.5 to compile LLVM ~8.0.1-rc2 on CentOS 7 AMD64 not
long
> >> ago,
> >> which worked ok.  That was using cmake, with these specific
options
> >> (in case
> >> that's useful):
> >
> > I’ve installed it successfully on both x86 and ARM.  It’s only on
> > POWER9  (ppc641e)  that it fails.
> > That one is not in your TARGETS_TO_BUILD list, alas.
>
> Good point.  Probably the best approach here will be to file a bug
> report for the POWER9 architecture, so someone looks to solve the
> problem.
>
>    https://bugs.llvm.org
>
If you haven't already, see
https://bugs.llvm.org/show_bug.cgi?id=39696 which handles the "is not
a constant expression" error.

Regards
David
> + Justin
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