https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79430
--- Comment #37 from Bijan Chokoufe <bijan at chokoufe dot com> --- (In reply to Thomas Koenig from comment #35) > [tkoenig@gcc1-power7 shower]$ pwd > /home/tkoenig/whizard-2.4.1/src/shower > [tkoenig@gcc1-power7 shower]$ grep -i volatile *.f90 > [tkoenig@gcc1-power7 shower]$ > > Did you run a diff on the generated assembly with and without > the VOLATILE statement? You can use the -save-temps option for that. I generated the .s files with -save-temps with and without volatile attributes. The diff is attached. I can say the instructions are different but that's about it. Concerning your PowerPC compilation: Have you set FCLAGS yourself and if so have you included -O2? That other tests are failing is not too suprising and doesn't have to be a major problem as the test suite is not numerically waterproof (and partly can't be). The issue with memcpy looks like a bug though.
