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[Bug libgomp/81386] [8 regression] libgomp.fortran/appendix-a/a.16.1.f90 fails starting with 249424
- From: "seurer at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 11 Jul 2017 14:29:48 +0000
- Subject: [Bug libgomp/81386] [8 regression] libgomp.fortran/appendix-a/a.16.1.f90 fails starting with 249424
- Auto-submitted: auto-generated
- References: <bug-81386-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81386
--- Comment #1 from seurer at gcc dot gnu.org ---
I looked back through the tester logs and noticed that the test case doesn't
always fail and there are two different failures and always with -O3
PASS: libgomp.fortran/appendix-a/a.16.1.f90 -O0 (test for excess errors)
PASS: libgomp.fortran/appendix-a/a.16.1.f90 -O0 execution test
PASS: libgomp.fortran/appendix-a/a.16.1.f90 -O1 (test for excess errors)
PASS: libgomp.fortran/appendix-a/a.16.1.f90 -O1 execution test
PASS: libgomp.fortran/appendix-a/a.16.1.f90 -O2 (test for excess errors)
PASS: libgomp.fortran/appendix-a/a.16.1.f90 -O2 execution test
PASS: libgomp.fortran/appendix-a/a.16.1.f90 -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions (test for excess
errors)
FAIL: libgomp.fortran/appendix-a/a.16.1.f90 -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions execution test
PASS: libgomp.fortran/appendix-a/a.16.1.f90 -O3 -g (test for excess errors)
FAIL: libgomp.fortran/appendix-a/a.16.1.f90 -O3 -g execution test
PASS: libgomp.fortran/appendix-a/a.16.1.f90 -Os (test for excess errors)
Oddly in many test runs the two errors occur equally often (about 87% of the
time for each one) but not always together. Neither error occurs in just 1.5%
of the runs.