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from 579d235ddcf lto: Fix typo in comment of gcc/lto/lto-symtab.c new 1be4878116a Fix middle-end/85811: Introduce tree_expr_maybe_non_p et al.

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Summary of changes: gcc/builtins.c | 26 ++-- gcc/fold-const.c | 262 ++++++++++++++++++++++++++++++++- gcc/fold-const.h | 7 + gcc/match.pd | 20 ++- gcc/testsuite/gcc.dg/fold-isfinite-1.c | 21 +++ gcc/testsuite/gcc.dg/fold-isfinite-2.c | 21 +++ gcc/testsuite/gcc.dg/fold-isinf-1.c | 21 +++ gcc/testsuite/gcc.dg/fold-isinf-2.c | 21 +++ gcc/testsuite/gcc.dg/fold-isnan-1.c | 21 +++ gcc/testsuite/gcc.dg/fold-isnan-2.c | 21 +++ gcc/testsuite/gcc.dg/pr85811.c | 15 ++ 11 files changed, 443 insertions(+), 13 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/fold-isfinite-1.c create mode 100644 gcc/testsuite/gcc.dg/fold-isfinite-2.c create mode 100644 gcc/testsuite/gcc.dg/fold-isinf-1.c create mode 100644 gcc/testsuite/gcc.dg/fold-isinf-2.c create mode 100644 gcc/testsuite/gcc.dg/fold-isnan-1.c create mode 100644 gcc/testsuite/gcc.dg/fold-isnan-2.c create mode 100644 gcc/testsuite/gcc.dg/pr85811.c