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authorTom Tromey <tom@tromey.com>2021-03-08 07:27:57 -0700
committerTom Tromey <tom@tromey.com>2021-03-08 07:28:19 -0700
commit373907ffb2db9232af14d2a7e4433f41cc1fc56c (patch)
treef81c492c40c56c246d27df0c07f743d2412e0c63 /gdb/expop.h
parent5133d78b7bf19f350865c9515839865503cacfa9 (diff)
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Introduce binop_operation
This adds two new template classes, binop_operation and usual_ax_binop_operation, and then uses these to implement a number of binary operations that follow similar patterns. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class binop_operation, class usual_ax_binop_operation): New. (exp_operation, intdiv_operation, mod_operation, mul_operation) (div_operation, rem_operation, lsh_operation, rsh_operation) (bitwise_and_operation, bitwise_ior_operation) (bitwise_xor_operation): New typedefs. * eval.c (eval_op_binary): No longer static.
Diffstat (limited to 'gdb/expop.h')
-rw-r--r--gdb/expop.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/gdb/expop.h b/gdb/expop.h
index c996d52..4624c2f 100644
--- a/gdb/expop.h
+++ b/gdb/expop.h
@@ -96,6 +96,10 @@ extern struct value *eval_op_sub (struct type *expect_type,
struct expression *exp,
enum noside noside,
struct value *arg1, struct value *arg2);
+extern struct value *eval_op_binary (struct type *expect_type,
+ struct expression *exp,
+ enum noside noside, enum exp_opcode op,
+ struct value *arg1, struct value *arg2);
namespace expr
{
@@ -1041,6 +1045,73 @@ protected:
}
};
+typedef struct value *binary_ftype (struct type *expect_type,
+ struct expression *exp,
+ enum noside noside, enum exp_opcode op,
+ struct value *arg1, struct value *arg2);
+
+template<enum exp_opcode OP, binary_ftype FUNC>
+class binop_operation
+ : public maybe_constant_operation<operation_up, operation_up>
+{
+public:
+
+ using maybe_constant_operation::maybe_constant_operation;
+
+ value *evaluate (struct type *expect_type,
+ struct expression *exp,
+ enum noside noside) override
+ {
+ value *lhs
+ = std::get<0> (m_storage)->evaluate (nullptr, exp, noside);
+ value *rhs
+ = std::get<1> (m_storage)->evaluate (nullptr, exp, noside);
+ return FUNC (expect_type, exp, noside, OP, lhs, rhs);
+ }
+
+ enum exp_opcode opcode () const override
+ { return OP; }
+};
+
+template<enum exp_opcode OP, binary_ftype FUNC>
+class usual_ax_binop_operation
+ : public binop_operation<OP, FUNC>
+{
+public:
+
+ using binop_operation<OP, FUNC>::binop_operation;
+
+protected:
+
+ void do_generate_ax (struct expression *exp,
+ struct agent_expr *ax,
+ struct axs_value *value,
+ struct type *cast_type)
+ override
+ {
+ gen_expr_binop (exp, OP,
+ std::get<0> (this->m_storage).get (),
+ std::get<1> (this->m_storage).get (),
+ ax, value);
+ }
+};
+
+using exp_operation = binop_operation<BINOP_EXP, eval_op_binary>;
+using intdiv_operation = binop_operation<BINOP_INTDIV, eval_op_binary>;
+using mod_operation = binop_operation<BINOP_MOD, eval_op_binary>;
+
+using mul_operation = usual_ax_binop_operation<BINOP_MUL, eval_op_binary>;
+using div_operation = usual_ax_binop_operation<BINOP_DIV, eval_op_binary>;
+using rem_operation = usual_ax_binop_operation<BINOP_REM, eval_op_binary>;
+using lsh_operation = usual_ax_binop_operation<BINOP_LSH, eval_op_binary>;
+using rsh_operation = usual_ax_binop_operation<BINOP_RSH, eval_op_binary>;
+using bitwise_and_operation
+ = usual_ax_binop_operation<BINOP_BITWISE_AND, eval_op_binary>;
+using bitwise_ior_operation
+ = usual_ax_binop_operation<BINOP_BITWISE_IOR, eval_op_binary>;
+using bitwise_xor_operation
+ = usual_ax_binop_operation<BINOP_BITWISE_XOR, eval_op_binary>;
+
} /* namespace expr */
#endif /* EXPOP_H */