https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94899
Bug ID: 94899 Summary: Failure to optimize out add before compare Product: gcc Version: 10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: gabravier at gmail dot com Target Milestone: --- int f(int x, int y) { return x + 0x80000000 < y + 0x80000000; } This can be optimized to `return x < y`. LLVM does this transformation, but GCC does not.