https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112548
--- Comment #26 from Filip Kastl <pheeck at gcc dot gnu.org> --- Yes, the "before" is r14-5075-gc05f748218a0d5. ---- I just tried to take the gcda data and use them to compile mcf on another machine. I also ran into output.c:87:1: error: corrupted profile info: number of executions for edge 3-4 thought to be 1 output.c:87:1: error: corrupted profile info: number of executions for edge 3-5 thought to be -1 output.c:87:1: error: corrupted profile info: number of iterations for basic block 5 thought to be -1 so the problem probably isn't that our sources or compilation options differ. I used the exact same config on both machines. I'm wondering if I'm generating the gcda files right. I have this in my SPEC .cfg file OPTIMIZE = -Ofast -g -march=native -mtune=native -flto=32 PASS1_CFLAGS = -fprofile-generate PASS1_CXXFLAGS = -fprofile-generate PASS1_FFLAGS = -fprofile-generate PASS1_LDFLAGS = -fprofile-generate PASS2_CFLAGS = -fprofile-use PASS2_CXXFLAGS = -fprofile-use PASS2_FFLAGS = -fprofile-use PASS2_LDFLAGS = -fprofile-use I run the benchmark and afterwards I go to benchspec/CPU2006/429.mcf/build/build_peak_<name of the cfg>.0000 and copy gcda files from there.
