https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90018
--- Comment #8 from Martin Liška <marxin at gcc dot gnu.org> --- > > Please use GCC 8 branch, not trunk. The problem only shows up on GCC 8 > branch. I can confirm that with r265453 I see: *** Miscompare of cam4_validate.txt; for details see /home/mliska/Programming/cpu2017/benchspec/CPU/527.cam4_r/run/run_peak_refrate_gcc7-m64.0000/cam4_validate.txt.mis 0001: PASS: 4 points. Failure at Step: 2 1 1 1 ^ 'cam4_validate.txt' long But it's not immediately, it takes couple of minutes to see it. I'm reducing that.