https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91144
Bug ID: 91144 Summary: [10 regiression] 176.gcc miscompare after r273294 Product: gcc Version: 10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: wilco at gcc dot gnu.org Target Milestone: --- Since r273294 SPEC2000 176.gcc fails with -O3 -DSPEC_CPU2000_LP64 -DSPEC_CPU2000_LINUX -std=gnu89: Running Benchmarks Running 176.gcc ref base ab default *** Miscompare of scilab.s, see /spec2000/benchspec/CINT2000/176.gcc/run/00000002/scilab.s.mis *** Miscompare of 200.s, see /spec2000/benchspec/CINT2000/176.gcc/run/00000002/200.s.mis Error: 1x176.gcc It passes when built with -O2 or with -fno-strict-aliasing.