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gcc/ChangeLog: PR middle-end/78786 * gimple-ssa-sprintf.c (target_dir_max): New macro. (get_mpfr_format_length): New function. (format_integer): Use HOST_WIDE_INT instead of int. (format_floating_max): Same. (format_floating): Call get_mpfr_format_length. (format_directive): Use target_dir_max. gcc/testsuite/ChangeLog: PR middle-end/78786 * gcc.dg/tree-ssa/builtin-sprintf-warn-7.c: New test. From-SVN: r243672
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