GCC modified for the FreeChainXenon project
cf5bea76f9
This patch provides the infrastructure to make range-ops type agnostic. First, the range_op_handler function has been replaced with an object of the same name. It's coded in such a way to minimize changes to the code base, and to encapsulate the dispatch code. Instead of: range_operator *op = range_op_handler (code, type); if (op) op->fold_range (...); We now do: range_op_handler op (code, type); if (op) op->fold_range (...); I've folded gimple_range_handler into the range_op_handler class, since it's also a query into the range operators. Instead of: range_operator *handler = gimple_range_handler (stmt); We now do: range_op_handler handler (stmt); This all has the added benefit of moving all the dispatch code into an independent class and avoid polluting range_operator (which we'll further split later when frange and prange come live). There's this annoying "using" keyword that's been added to each operator due to hiding rules in C++. The issue is that we will have different virtual versions of fold_range() for each combination of operands. For example: // Traditional binary op on irange's. fold_range (irange &lhs, const irange &op1, const irange &op2); // For POINTER_DIFF_EXPR: fold_range (irange &lhs, const prange &op1, const prange &op2); // Cast from irange to prange. fold_range (prange &lhs, const irange &op1, const irange &op2); Overloading virtuals when there are multiple same named methods causes hidden virtuals warnings from -Woverloaded-virtual, thus the using keyword. An alternative would be to have different names: fold_range_III, fold_range_IPP, fold_range_PII, but that's uglier still. Tested on x86-64 & ppc64le Linux. gcc/ChangeLog: * gimple-range-edge.cc (gimple_outgoing_range_stmt_p): Adjust for vrange and convert range_op_handler function calls to use the identically named object. * gimple-range-fold.cc (gimple_range_operand1): Same. (gimple_range_operand2): Same. (fold_using_range::fold_stmt): Same. (fold_using_range::range_of_range_op): Same. (fold_using_range::range_of_builtin_ubsan_call): Same. (fold_using_range::relation_fold_and_or): Same. (fur_source::register_outgoing_edges): Same. * gimple-range-fold.h (gimple_range_handler): Remove. * gimple-range-gori.cc (gimple_range_calc_op1): Adjust for vrange. (gimple_range_calc_op2): Same. (range_def_chain::get_def_chain): Same. (gori_compute::compute_operand_range): Same. (gori_compute::condexpr_adjust): Same. * gimple-range.cc (gimple_ranger::prefill_name): Same. (gimple_ranger::prefill_stmt_dependencies): Same. * range-op.cc (get_bool_state): Same. (class operator_equal): Add using clause. (class operator_not_equal): Same. (class operator_lt): Same. (class operator_le): Same. (class operator_gt): Same. (class operator_ge): Same. (class operator_plus): Same. (class operator_minus): Same. (class operator_mult): Same. (class operator_exact_divide): Same. (class operator_lshift): Same. (class operator_rshift): Same. (class operator_cast): Same. (class operator_logical_and): Same. (class operator_bitwise_and): Same. (class operator_logical_or): Same. (class operator_bitwise_or): Same. (class operator_bitwise_xor): Same. (class operator_trunc_mod): Same. (class operator_logical_not): Same. (class operator_bitwise_not): Same. (class operator_cst): Same. (class operator_identity): Same. (class operator_unknown): Same. (class operator_abs): Same. (class operator_negate): Same. (class operator_addr_expr): Same. (class pointer_or_operator): Same. (operator_plus::op1_range): Adjust for vrange. (operator_minus::op1_range): Same. (operator_mult::op1_range): Same. (operator_cast::op1_range): Same. (operator_bitwise_not::fold_range): Same. (operator_negate::fold_range): Same. (range_op_handler): Rename to... (get_handler): ...this. (range_op_handler::range_op_handler): New. (range_op_handler::fold_range): New. (range_op_handler::op1_range): New. (range_op_handler::op2_range): New. (range_op_handler::lhs_op1_relation): New. (range_op_handler::lhs_op2_relation): New. (range_op_handler::op1_op2_relation): New. (range_cast): Adjust for vrange. * range-op.h (range_op_handler): Remove function. (range_cast): Adjust for vrange. (class range_op_handler): New. (get_bool_state): Adjust for vrange. (empty_range_varying): Same. (relop_early_resolve): Same. * tree-data-ref.cc (compute_distributive_range): Same. * tree-vrp.cc (get_range_op_handler): Remove. (range_fold_binary_symbolics_p): Use range_op_handler class instead of get_range_op_handler. (range_fold_unary_symbolics_p): Same. (range_fold_binary_expr): Same. (range_fold_unary_expr): Same. * value-query.cc (range_query::get_tree_range): Adjust for vrange. |
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| c++tools | ||
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