#include <malloc.h>
#endif
+#include "irop_t.h"
#include "irprog_t.h"
#include "irnode_t.h"
+#include "irprog_t.h"
#include "irgwalk.h"
#include "ircons.h"
#include "irgmod.h"
/** Walker environment */
typedef struct _walker_env {
- pmap *map; /**< the intrinsic map. */
- unsigned nr_of_intrinsics; /**< statistics */
+ pmap *c_map; /**< The intrinsic call map. */
+ unsigned nr_of_intrinsics; /**< statistics */
+ const i_instr_record **i_map; /**< The intrinsic instruction map. */
} walker_env_t;
/**
- * walker: do the call mapping
+ * walker: call all mapper functions
*/
-static void call_mapper(ir_node *call, void *env) {
+static void call_mapper(ir_node *node, void *env) {
walker_env_t *wenv = env;
- ir_node *symconst;
- pmap_entry *p;
- const i_record *r;
- entity *ent;
+ ir_op *op = get_irn_op(node);
- if (! is_Call(call))
- return;
+ if (op == op_Call) {
+ ir_node *symconst;
+ pmap_entry *p;
+ const i_call_record *r;
+ entity *ent;
- symconst = get_Call_ptr(call);
- if (get_irn_op(symconst) != op_SymConst ||
- get_SymConst_kind(symconst) != symconst_addr_ent)
- return;
+ symconst = get_Call_ptr(node);
+ if (get_irn_op(symconst) != op_SymConst ||
+ get_SymConst_kind(symconst) != symconst_addr_ent)
+ return;
- ent = get_SymConst_entity(symconst);
- p = pmap_find(wenv->map, ent);
+ ent = get_SymConst_entity(symconst);
+ p = pmap_find(wenv->c_map, ent);
- if (p) {
- r = p->value;
- wenv->nr_of_intrinsics += r->i_mapper(call, r->ctx) ? 1 : 0;
+ if (p) {
+ r = p->value;
+ wenv->nr_of_intrinsics += r->i_mapper(node, r->ctx) ? 1 : 0;
+ }
+ }
+ else {
+ if (0 <= op->code && op->code < ARR_LEN(wenv->i_map)) {
+ const i_instr_record *r = wenv->i_map[op->code];
+ if (r) { /* we have a mapper */
+ wenv->nr_of_intrinsics += r->i_mapper(node, r->ctx) ? 1 : 0;
+ }
+ }
}
}
/* Go through all graphs and map calls to intrinsic functions. */
-unsigned lower_intrinsic_calls(const i_record *list, int length) {
- int i;
- ir_graph *irg;
- pmap *map = pmap_create_ex(length);
- walker_env_t wenv;
- unsigned nr_of_intrinsics = 0;
+unsigned lower_intrinsics(const i_record *list, int length) {
+ int i, n_ops = get_irp_n_opcodes();
+ ir_graph *irg;
+ pmap *c_map = pmap_create_ex(length);
+ const i_instr_record **i_map;
+ unsigned nr_of_intrinsics = 0;
+ walker_env_t wenv;
+
+ /* we use the ir_op generic pointers here */
+ NEW_ARR_A(const i_instr_record *, i_map, n_ops);
+ memset((void *)i_map, 0, sizeof(*i_map) * n_ops);
/* fill a map for faster search */
- for (i = length - 1; i >= 0; --i)
- pmap_insert(map, list[i].i_ent, (void *)&list[i]);
+ for (i = length - 1; i >= 0; --i) {
+ if (list->i_call.kind == INTRINSIC_CALL) {
+ pmap_insert(c_map, list[i].i_call.i_ent, (void *)&list[i].i_call);
+ }
+ else {
+ ir_op *op = list->i_instr.op;
+ assert(0 <= op->code && op->code < ARR_LEN(i_map));
- wenv.map = map;
+ i_map[op->code] = &list->i_instr;
+ }
+ }
+
+ wenv.c_map = c_map;
+ wenv.i_map = i_map;
for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
irg = get_irp_irg(i);
wenv.nr_of_intrinsics = 0;
- irg_walk_graph(irg, NULL, call_mapper, map);
+ irg_walk_graph(irg, NULL, call_mapper, &wenv);
if (wenv.nr_of_intrinsics) {
/* changes detected */
nr_of_intrinsics += wenv.nr_of_intrinsics;
}
}
- pmap_destroy(map);
+ pmap_destroy(c_map);
return nr_of_intrinsics;
}
return 1;
}
+
+#define LMAX(a, b) ((a) > (b) ? (a) : (b))
+
+/* A mapper for mapping unsupported instructions to runtime calls. */
+int i_mapper_RuntimeCall(ir_node *node, runtime_rt *rt) {
+ int i, j, arity, first, n_param, n_res;
+ long n_proj;
+ ir_type *mtp;
+ ir_node *mem, *bl, *call, *addr, *res_proj;
+ ir_node **in;
+ ir_graph *irg;
+ symconst_symbol sym;
+
+ /* check if the result modes match */
+ if (get_irn_mode(node) != rt->mode)
+ return 0;
+
+ arity = get_irn_arity(node);
+ if (arity <= 0)
+ return 0;
+
+ mtp = get_entity_type(rt->ent);
+ n_param = get_method_n_params(mtp);
+ irg = current_ir_graph;
+
+ mem = get_irn_n(node, 0);
+ if (get_irn_mode(mem) != mode_M) {
+ mem = new_r_NoMem(irg);
+ first = 0;
+ }
+ else
+ first = 1;
+
+ /* check if the modes of the predecessors match the parameter modes */
+ if (arity - first != n_param)
+ return 0;
+
+ for (i = first, j = 0; i < arity; ++i, ++j) {
+ ir_type *param_tp = get_method_param_type(mtp, j);
+ ir_node *pred = get_irn_n(node, i);
+
+ if (get_type_mode(param_tp) != get_irn_mode(pred))
+ return 0;
+ }
+
+ n_res = get_method_n_ress(mtp);
+
+ /* step 0: calculate the number of needed Proj's */
+ n_proj = 0;
+ n_proj = LMAX(n_proj, rt->mem_proj_nr + 1);
+ n_proj = LMAX(n_proj, rt->exc_proj_nr + 1);
+ n_proj = LMAX(n_proj, rt->exc_mem_proj_nr + 1);
+ n_proj = LMAX(n_proj, rt->res_proj_nr + 1);
+
+ if (n_proj > 0) {
+ if (rt->mode != mode_T) /* must be mode_T */
+ return 0;
+ }
+ else {
+ if (n_res > 0)
+ /* must match */
+ if (get_type_mode(get_method_res_type(mtp, 0)) != rt->mode)
+ return 0;
+ }
+
+ /* ok, when we are here, the number of predecessors match as well as the parameter modes */
+ bl = get_nodes_block(node);
+
+ in = NULL;
+ if (n_param > 0) {
+ NEW_ARR_A(ir_node *, in, n_param);
+ for (i = 0; i < n_param; ++i)
+ in[i] = get_irn_n(node, first + i);
+ }
+
+ /* step 1: create the call */
+ sym.entity_p = rt->ent;
+ addr = new_r_SymConst(irg, bl, sym, symconst_addr_ent);
+ call = new_rd_Call(get_irn_dbg_info(node), irg, bl, mem, addr, n_param, in, mtp);
+ set_irn_pinned(call, get_irn_pinned(node));
+
+ if (n_res > 0)
+ res_proj = new_r_Proj(irg, bl, call, mode_T, pn_Call_T_result);
+
+ if (n_proj > 0) {
+ n_proj += n_res;
+
+ /* we are ready */
+ turn_into_tuple(node, n_proj);
+
+ for (i = 0; i < n_proj; ++i)
+ set_Tuple_pred(node, i, new_r_Bad(irg));
+ if (rt->mem_proj_nr > 0)
+ set_Tuple_pred(node, rt->mem_proj_nr, new_r_Proj(irg, bl, call, mode_M, pn_Call_M_regular));
+ if (rt->exc_proj_nr > 0)
+ set_Tuple_pred(node, rt->mem_proj_nr, new_r_Proj(irg, bl, call, mode_X, pn_Call_X_except));
+ if (rt->exc_mem_proj_nr > 0)
+ set_Tuple_pred(node, rt->mem_proj_nr, new_r_Proj(irg, bl, call, mode_M, pn_Call_M_except));
+
+ if (rt->res_proj_nr > 0)
+ for (i = 0; i < n_res; ++i)
+ set_Tuple_pred(node, rt->res_proj_nr + i,
+ new_r_Proj(irg, bl, call, get_type_mode(get_method_res_type(mtp, i)), i));
+ return 1;
+ }
+ else {
+ /* only one return value supported */
+ if (n_res > 0) {
+ ir_mode *mode = get_type_mode(get_method_res_type(mtp, 0));
+
+ res_proj = new_r_Proj(irg, bl, call, mode_T, pn_Call_T_result);
+ res_proj = new_r_Proj(irg, bl, call, mode, 0);
+
+ exchange(node, res_proj);
+ return 1;
+ }
+ }
+ /* should not happen */
+ return 0;
+}
/**
* An intrinsic mapper function.
*
- * @param call the Call node
+ * @param node the IR-node that will be mapped
* @param ctx a context
*
* @return non-zero if the call was mapped
*/
-typedef int (*i_mapper_func)(ir_node *call, void *ctx);
+typedef int (*i_mapper_func)(ir_node *node, void *ctx);
+
+enum ikind {
+ INTRINSIC_CALL = 0, /**< the record represents an intrinsic call */
+ INTRINSIC_INSTR /**< the record represents an intrinsic instruction */
+};
/**
* An intrinsic record.
*/
-typedef struct _i_record {
- entity *i_ent; /**< the entity representing an intrinsic */
+typedef struct _i_call_record {
+ enum ikind kind; /**< must be INTRINSIC_CALL */
+ entity *i_ent; /**< the entity representing an intrinsic call */
+ i_mapper_func i_mapper; /**< the mapper function to call */
+ void *ctx; /**< mapper context */
+} i_call_record;
+
+/**
+ * An intrinsic instruction record.
+ */
+typedef struct _i_instr_record {
+ enum ikind kind; /**< must be INTRINSIC_INSTR */
+ ir_op *op; /**< the opcode that must be mapped. */
i_mapper_func i_mapper; /**< the mapper function to call */
void *ctx; /**< mapper context */
+} i_instr_record;
+
+/**
+ * An intrinsic record.
+ */
+typedef union _i_record {
+ i_call_record i_call;
+ i_instr_record i_instr;
} i_record;
/**
- * Go through all graphs and map calls to intrinsic functions.
+ * Go through all graphs and map calls to intrinsic functions and instructions.
*
- * Every call is reported to its mapper function, which is responsible for
- * rebuilding the graph.
+ * Every call or instruction is reported to its mapper function,
+ * which is responsible for rebuilding the graph.
*
* current_ir_graph is always set.
*
* @param list an array of intrinsic map records
* @param length the length of the array
*
- * @return number of found intrinsic calls
+ * @return number of found intrinsics.
*/
-unsigned lower_intrinsic_calls(const i_record *list, int length);
+unsigned lower_intrinsics(const i_record *list, int length);
/**
* A mapper for the integer absolute value: inttype abs(inttype v).
*/
int i_mapper_Alloca(ir_node *call, void *ctx);
+/**
+ * A runtime routine description.
+ */
+typedef struct _runtime_rt {
+ entity *ent; /**< The entity representing the runtime routine. */
+ ir_mode *mode; /**< The operation mode of the mapped instruction. */
+ long mem_proj_nr; /**< if >= 0, create a memory ProjM() */
+ long exc_proj_nr; /**< if >= 0, create a exception ProjX() */
+ long exc_mem_proj_nr; /**< if >= 0, create a exception memory ProjM() */
+ long res_proj_nr; /**< if >= 0, first result projection number */
+} runtime_rt;
+
+/**
+ * A mapper for mapping unsupported instructions to runtime calls.
+ * Maps a op(arg_0, ..., arg_n) into a call to a runtime function
+ * rt(arg_0, ..., arg_n).
+ *
+ * The mapping is only done, if the modes of all arguments matches the
+ * modes of rt's argument.
+ * Further, if op has a memory input, the generated Call uses it, else
+ * it gets a NoMem.
+ * The pinned state of the Call will be set to the pinned state of op.
+ *
+ * Note that i_mapper_RuntimeCall() must be used with a i_instr_record.
+ *
+ * @return 1 if an op was mapped, 0 else
+ *
+ * Some examples:
+ *
+ * - Maps Div nodes to calls to rt_Div():
+ @code
+ runtime_rt rt_Div = {
+ ent("int rt_Div(int, int)"),
+ mode_T,
+ pn_Div_M,
+ pn_Div_X_except,
+ pn_Div_M,
+ pn_Div_res
+ };
+ i_instr_record map_Div = {
+ INTRINSIC_INSTR,
+ op_Div,
+ i_mapper_RuntimeCall,
+ &rt_Div
+ };
+ @endcode
+ *
+ * - Maps ConvD(F) to calls to rt_Float2Div():
+ @code
+ runtime_rt rt_Float2Double = {
+ ent("double rt_Float2Div(float)"),
+ get_type_mode("double"),
+ -1,
+ -1,
+ -1,
+ -1
+ };
+ i_instr_record map_Float2Double = {
+ INTRINSIC_INSTR,
+ op_Conv,
+ i_mapper_RuntimeCall,
+ &rt_Float2Double
+ };
+ @endcode
+ */
+int i_mapper_RuntimeCall(ir_node *node, runtime_rt *rt);
+
#endif /* _LOWER_INTRINSICS_H_ */