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from 4429133c757 Avoid redundant runtime checks in std::visit new fec27bf230c * builtins.c (unterminated_array): Add new arguments. If [...] new c2599f854c3 * gimple-fold.c (get_range_strlen): Remove dead code.

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Summary of changes: gcc/ChangeLog | 15 ++ gcc/builtins.c | 97 +++++++- gcc/builtins.h | 2 +- gcc/gimple-fold.c | 9 +- gcc/testsuite/ChangeLog | 4 + gcc/testsuite/gcc.dg/warn-strnlen-no-nul.c | 356 +++++++++++++++++++++++++++++ 6 files changed, 469 insertions(+), 14 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/warn-strnlen-no-nul.c