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from f24e1087668 Implement pointer_or_operator. new 3e93828e601 Make more places handle exact_div like trunc_div new e2e798b8607 Use get_nonzero_bits to simplify trunc_div to exact_div new b381e84c4ec Simplify (X /[ex] C1) * (C1 * C2) -> X * C2 new 8d01bc7dc45 Generalise ((X /[ex] A) +- B) * A -> X +- A * B rule new ec8e8d35969 Try to simplify (X >> C1) << (C1 + C2) -> X << C2 new d6c4badffaf Handle POLY_INT_CSTs in get_nonzero_bits new af19e46c88f Try to simplify (X >> C1) * (C2 << C1) -> X * C2 new b02503d3fe7 Record nonzero bits in the irange_bitmask of POLY_INT_CSTs
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Summary of changes: gcc/match.pd | 143 +++++++++++++++------- gcc/testsuite/gcc.dg/tree-ssa/cmpexactdiv-6.c | 29 +++++ gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-1.c | 23 ++++ gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-2.c | 19 +++ gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-3.c | 21 ++++ gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-4.c | 14 +++ gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-5.c | 29 +++++ gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-6.c | 59 +++++++++ gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-7.c | 22 ++++ gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-8.c | 20 +++ gcc/testsuite/gcc.dg/tree-ssa/shifts-1.c | 61 +++++++++ gcc/testsuite/gcc.dg/tree-ssa/shifts-2.c | 21 ++++ gcc/testsuite/gcc.dg/tree-ssa/shifts-3.c | 65 ++++++++++ gcc/testsuite/gcc.dg/tree-ssa/shifts-4.c | 23 ++++ gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_1.c | 110 +++++++++++++++++ gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_2.c | 55 +++++++++ gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_3.c | 40 ++++++ gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_4.c | 61 +++++++++ gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_5.c | 38 ++++++ gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_6.c | 75 ++++++++++++ gcc/tree-ssa-loop-ivopts.cc | 2 + gcc/tree-ssa-loop-niter.cc | 2 +- gcc/tree-ssanames.cc | 3 + gcc/tree.h | 13 ++ gcc/value-query.cc | 7 ++ 25 files changed, 911 insertions(+), 44 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/cmpexactdiv-6.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-1.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-2.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-3.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-4.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-5.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-6.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-7.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/mulexactdiv-8.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/shifts-1.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/shifts-2.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/shifts-3.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/shifts-4.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_1.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_2.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_3.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_4.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_5.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/cnt_fold_6.c