https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81920
--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> --- Created attachment 42026 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42026&action=edit tentative patch for lib-81.c The only problem: error reporting has not improved a lot. When I hand-edit the test-case to make the matching fail: ... - /* { dg-output ".*actual time 3 < 0.10: ok" } */ + /* { dg-output ".*actual time 3 < 0.11: ok" } */ ... We just get: ... FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/lib-81.c -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -O2 output pattern test ... so, no line saying: this individual dg-output line failed. In libgomp.log, things are not too readable either: ... FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/lib-81.c -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -O2 output pattern test Output was: actual time 1: 528.946960, delay time: 500.000000 actual time 1 >= delay time: ok actual time 2: 0.073856 actual time 2 < 0.10: ok actual time 3: 0.022368 actual time 3 < 0.10: ok Should match: actual time 1 >= delay time: ok.*actual time 2 < 0.10: ok.*actual time 3 < 0.11: ok ...