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gcc/ChangeLog: PR tree-optimization/91567 * gimple-ssa-sprintf.c (get_string_length): Handle more forms of lengths of unknown strings. * vr-values.c (vr_values::extract_range_basic): Set strlen upper bound to PTRDIFF_MAX - 2. gcc/testsuite/ChangeLog: PR tree-optimization/91567 * gcc.dg/tree-ssa/builtin-snprintf-6.c: Xfail a subset of assertions on targets other than x86_64 to work around PR 83543. * gcc.dg/tree-ssa/builtin-sprintf-warn-22.c: New test. From-SVN: r274976
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