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From: Aldy Hernandez <aldyh@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-3900] [range-ops] Use existing tree code for *DIV_EXPR entries. Date: Fri, 11 Nov 2022 13:53:44 +0000 (GMT) [thread overview] Message-ID: <20221111135344.A38C83858434@sourceware.org> (raw) https://gcc.gnu.org/g:b3e8dc87b79a0c887e16553e975aa54f694f1de1 commit r13-3900-gb3e8dc87b79a0c887e16553e975aa54f694f1de1 Author: Aldy Hernandez <aldyh@redhat.com> Date: Thu Nov 10 11:36:46 2022 +0100 [range-ops] Use existing tree code for *DIV_EXPR entries. There is no need for a special tree code in the *DIV_EXPR entries, as the parent class has one. gcc/ChangeLog: * range-op.cc (class operator_div): Remove tree code. (operator_div::wi_op_overflows): Handle EXACT_DIV_EXPR as TRUNC_DIV_EXPR. Diff: --- gcc/range-op.cc | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) diff --git a/gcc/range-op.cc b/gcc/range-op.cc index 1fbebd85620..00a736e983d 100644 --- a/gcc/range-op.cc +++ b/gcc/range-op.cc @@ -1971,7 +1971,6 @@ operator_mult::wi_fold (irange &r, tree type, class operator_div : public cross_product_operator { public: - operator_div (enum tree_code c) { code = c; } virtual void wi_fold (irange &r, tree type, const wide_int &lh_lb, const wide_int &lh_ub, @@ -1983,8 +1982,6 @@ public: virtual bool fold_range (irange &r, tree type, const irange &lh, const irange &rh, relation_trio trio) const final override; -private: - enum tree_code code; }; bool @@ -1995,7 +1992,7 @@ operator_div::fold_range (irange &r, tree type, if (!cross_product_operator::fold_range (r, type, lh, rh, trio)) return false; - update_known_bitmask (r, code, lh, rh); + update_known_bitmask (r, m_code, lh, rh); return true; } @@ -2009,13 +2006,9 @@ operator_div::wi_op_overflows (wide_int &res, tree type, wi::overflow_type overflow = wi::OVF_NONE; signop sign = TYPE_SIGN (type); - switch (code) + switch (m_code) { case EXACT_DIV_EXPR: - // EXACT_DIV_EXPR is implemented as TRUNC_DIV_EXPR in - // operator_exact_divide. No need to handle it here. - gcc_unreachable (); - break; case TRUNC_DIV_EXPR: res = wi::div_trunc (w0, w1, sign, &overflow); break; @@ -2091,17 +2084,11 @@ operator_div::wi_fold (irange &r, tree type, gcc_checking_assert (!r.undefined_p ()); } -operator_div op_trunc_div (TRUNC_DIV_EXPR); -operator_div op_floor_div (FLOOR_DIV_EXPR); -operator_div op_round_div (ROUND_DIV_EXPR); -operator_div op_ceil_div (CEIL_DIV_EXPR); - class operator_exact_divide : public operator_div { using range_operator::op1_range; public: - operator_exact_divide () : operator_div (TRUNC_DIV_EXPR) { } virtual bool op1_range (irange &r, tree type, const irange &lhs, const irange &op2, @@ -4382,6 +4369,10 @@ static operator_cast op_nop, op_convert; static operator_identity op_ssa, op_paren, op_obj_type; static operator_unknown op_realpart, op_imagpart; static pointer_min_max_operator op_ptr_min, op_ptr_max; +static operator_div op_trunc_div; +static operator_div op_floor_div; +static operator_div op_round_div; +static operator_div op_ceil_div; // Instantiate a range op table for integral operations.
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