https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63895
Bug ID: 63895 Summary: [5 Regression] r217588 miscompled 178.galgel from cpu2000 Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: hjl.tools at gmail dot com CC: vmakarov at redhat dot com On Linux/x86-64, r217588 miscompiled 178.galgel from cpu2000: # gfortran -O3 -funroll-loops -ffast-math -DSPEC_CPU2000_LP64 .... ... 0203: C1 = ( -0.3411 , 0.2388 ) C1 = ( 0.2181E+13, -0.3477E+12) ^ 0206: Error in right eigenvector is 0.000 Error in right eigenvector is 156.7 ^ 0249: D(Lambda)/D(Gr) = ( 0.3254E-04, 0.6779E-04) D(Lambda)/D(Gr) = ( -0.4526E-13, -0.6501E-13) ^ 0251: Calculated estimations of errors: Error in BifGel: D(alpha)/D(Anu) = 0 ^ 0252: Error in calculation of Omega = 0.000 BifGel: weakly nonlinear analysis failed ^ 0253: Error in calculation of Amu2 = 0.000 Error return from BifGel called by Cyklap: ier= 139 ^ 'galgel.out' short