POWER Supported?

[AndiH]

POWER Supported?

[sscalpone]

You did nothing wrong. We expect POWER to be supported. We are working on upstreaming the changes to support llvm.ppc.vsx.* for POWER. In the meantime, we'll push a change to work around the problem. If you want a quick workaround, you might be able to add -nofma to the compilation options that are used to build libflang.so. (I did not try that workaround.)

[AndiH]

Thanks for the info!

I can't find how to add the -nofma flag. By using -DCMAKE_Fortran_FLAGS="-nofma" not. And in the CMakeLists.txt I can't see where the file is created.

[sscalpone]

I just merged a change that disables generation of llvm.ppc.vsx.* for POWER.

[AndiH]

$ ./a.out
 hello world

Your changes work! Thank you very much for the quick fix.

Are you planning to eventually support the instructions again at some point?

[sscalpone]

LLVM for OpenPOWER supports fma; flang might generate those now just using its default mechanisms. I don't know. We are preparing to contribute changes to llvm.org; I'm not sure on the timing of those changes.