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from 5b7d0f4d764 [PR c++/6936] Delete duplicate test new 5c2bf77d1f6 PR middle-end/83688 - check if buffers may overlap when cop [...]

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Summary of changes: gcc/ChangeLog | 20 + gcc/gimple-ssa-sprintf.c | 720 +++++++++++++++++---- gcc/testsuite/ChangeLog | 5 + .../gcc.dg/tree-ssa/builtin-sprintf-warn-23.c | 709 ++++++++++++++++++++ gcc/tree-ssa-strlen.c | 1 + 5 files changed, 1335 insertions(+), 120 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-23.c