https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99421
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to qinzhao from comment #4) > (In reply to Martin Liška from comment #3) > > Confirmed, reduced test-case: > > > just curious, how did you reduce the testing case with -fprofile-use? (I Sure. I used C-Vise: https://github.com/marxin/cvise with a built cross compiler: cvise -c 'cp ~/Programming/gcc2/objdir/gcc/predict.gcda . && /home/marxin/Programming/gcc2/objdir/gcc/xgcc -B /home/marxin/Programming/gcc2/objdir/gcc/ -fprofile-use -fselective-scheduling -fselective-scheduling2 -fsel-sched-pipelining -g -O3 -fno-strict-aliasing -c predict.i 2>&1 | grep code_motion_process_successors' predict.i > tried Creduce, but failed) > another question, how to repeat the failure with this reduced testing case? Note that one can theoretically reduce also the .gcda file. I have an experimental pass for it in C-Vise and I will likely upstream it. Does it explain all your questions?
