https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90018
Bug ID: 90018 Summary: [8 Regression] r265453 miscompiled 527.cam4_r in SPEC CPU 2017 Product: gcc Version: 8.3.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: hjl.tools at gmail dot com CC: rguenther at suse dot de Target Milestone: --- On x86-64 with AVX512, r265453 miscompiled 527.cam4_r in SPEC CPU 2017 with: -march=native -Ofast -funroll-loops 527.cam4_r segfaults immediately. GCC 7 branch and master branch are OK.