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from 0e1b1222af5 libstdc++: Optimize array traits new e9b0dd2afe7 Add signbit property to frange to better model signed zeros. new 0550e306d4b Implement ranger folder for __builtin_signbit.
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Summary of changes: gcc/gimple-range-fold.cc | 20 +++ gcc/range-op-float.cc | 6 + .../gcc.dg/tree-ssa/vrp-float-signbit-1.c | 12 ++ gcc/value-query.cc | 27 ++- gcc/value-range-pretty-print.cc | 1 + gcc/value-range.cc | 200 ++++++++++++++++++--- gcc/value-range.h | 4 + 7 files changed, 236 insertions(+), 34 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/vrp-float-signbit-1.c