return nr_of_intrinsics;
}
-/* A mapper for the integer abs. */
-int i_mapper_Abs(ir_node *call, void *ctx) {
- ir_node *mem = get_Call_mem(call);
- ir_node *block = get_nodes_block(call);
- ir_node *op = get_Call_param(call, 0);
- ir_node *irn;
- dbg_info *dbg = get_irn_dbg_info(call);
- (void) ctx;
+/**
+ * Helper function, replace the call by the given node.
+ *
+ * @param irn the result node
+ * @param call the call to replace
+ * @param mem the new mem result
+ * @param reg_jmp new regular control flow, if NULL, a Jmp will be used
+ * @param exc_jmp new exception control flow, if reg_jmp == NULL, a Bad will be used
+ */
+static void replace_call(ir_node *irn, ir_node *call, ir_node *mem, ir_node *reg_jmp, ir_node *exc_jmp) {
+ if (reg_jmp == NULL) {
+ ir_node *block = get_nodes_block(call);
- irn = new_rd_Abs(dbg, current_ir_graph, block, op, get_irn_mode(op));
+ /* Beware: do we need here a protection against CSE? Better we do it. */
+ int old_cse = get_opt_cse();
+ set_opt_cse(0);
+ reg_jmp = new_r_Jmp(current_ir_graph, block);
+ set_opt_cse(old_cse);
+ exc_jmp = new_Bad();
+ }
irn = new_Tuple(1, &irn);
turn_into_tuple(call, pn_Call_max);
set_Tuple_pred(call, pn_Call_M_regular, mem);
- set_Tuple_pred(call, pn_Call_X_regular, new_r_Jmp(current_ir_graph, block));
- set_Tuple_pred(call, pn_Call_X_except, new_Bad());
+ set_Tuple_pred(call, pn_Call_X_regular, reg_jmp);
+ set_Tuple_pred(call, pn_Call_X_except, exc_jmp);
set_Tuple_pred(call, pn_Call_T_result, irn);
set_Tuple_pred(call, pn_Call_M_except, mem);
set_Tuple_pred(call, pn_Call_P_value_res_base, new_Bad());
+}
+/* A mapper for the integer abs. */
+int i_mapper_abs(ir_node *call, void *ctx) {
+ ir_node *mem = get_Call_mem(call);
+ ir_node *block = get_nodes_block(call);
+ ir_node *op = get_Call_param(call, 0);
+ ir_node *irn;
+ dbg_info *dbg = get_irn_dbg_info(call);
+ (void) ctx;
+
+ irn = new_rd_Abs(dbg, current_ir_graph, block, op, get_irn_mode(op));
+ replace_call(irn, call, mem, NULL, NULL);
return 1;
}
/* A mapper for the alloca() function. */
-int i_mapper_Alloca(ir_node *call, void *ctx) {
+int i_mapper_alloca(ir_node *call, void *ctx) {
ir_node *mem = get_Call_mem(call);
ir_node *block = get_nodes_block(call);
ir_node *op = get_Call_param(call, 0);
no_exc = new_Proj(irn, mode_X, pn_Alloc_X_regular);
exc = new_Proj(irn, mode_X, pn_Alloc_X_except);
irn = new_Proj(irn, get_modeP_data(), pn_Alloc_res);
- irn = new_Tuple(1, &irn);
-
- turn_into_tuple(call, pn_Call_max);
- set_Tuple_pred(call, pn_Call_M_regular, mem);
- set_Tuple_pred(call, pn_Call_X_regular, no_exc);
- set_Tuple_pred(call, pn_Call_X_except, exc);
- set_Tuple_pred(call, pn_Call_T_result, irn);
- set_Tuple_pred(call, pn_Call_M_except, mem);
- set_Tuple_pred(call, pn_Call_P_value_res_base, new_Bad());
+ replace_call(irn, call, mem, no_exc, exc);
return 1;
}
/* A mapper for the floating point sqrt. */
-int i_mapper_Sqrt(ir_node *call, void *ctx) {
- dbg_info *dbg;
- ir_node *irn, *mem, *block;
+int i_mapper_sqrt(ir_node *call, void *ctx) {
+ ir_node *mem;
tarval *tv;
ir_node *op = get_Call_param(call, 0);
(void) ctx;
if (! tarval_is_null(tv) && !tarval_is_one(tv))
return 0;
- mem = get_Call_mem(call);
- block = get_nodes_block(call);
- dbg = get_irn_dbg_info(call);
+ mem = get_Call_mem(call);
/* sqrt(0) = 0, sqrt(1) = 1 */
- irn = op;
- irn = new_Tuple(1, &irn);
-
- turn_into_tuple(call, pn_Call_max);
- set_Tuple_pred(call, pn_Call_M_regular, mem);
- set_Tuple_pred(call, pn_Call_X_regular, new_r_Jmp(current_ir_graph, block));
- set_Tuple_pred(call, pn_Call_X_except, new_Bad());
- set_Tuple_pred(call, pn_Call_T_result, irn);
- set_Tuple_pred(call, pn_Call_M_except, mem);
- set_Tuple_pred(call, pn_Call_P_value_res_base, new_Bad());
-
+ replace_call(op, call, mem, NULL, NULL);
return 1;
}
/* A mapper for the floating point pow. */
-int i_mapper_Pow(ir_node *call, void *ctx) {
+int i_mapper_pow(ir_node *call, void *ctx) {
dbg_info *dbg;
ir_node *mem;
ir_node *left = get_Call_param(call, 0);
ir_node *right = get_Call_param(call, 1);
ir_node *block = get_nodes_block(call);
- ir_node *irn, *reg_jmp, *exc_jmp;
+ ir_node *irn, *reg_jmp = NULL, *exc_jmp = NULL;
(void) ctx;
if (is_Const(left) && is_Const_one(left)) {
irn = NULL;
} else
return 0;
+ } else {
+ return 0;
}
mem = get_Call_mem(call);
irn = new_r_Proj(current_ir_graph, block, quot, mode, pn_Quot_res);
reg_jmp = new_r_Proj(current_ir_graph, block, quot, mode_X, pn_Quot_X_regular);
exc_jmp = new_r_Proj(current_ir_graph, block, quot, mode_X, pn_Quot_X_except);
- } else {
- /* Beware: do we need here a protection against CSE? Better we do it. */
- int old_cse = get_opt_cse();
- set_opt_cse(0);
- reg_jmp = new_r_Jmp(current_ir_graph, block);
- set_opt_cse(old_cse);
- exc_jmp = new_Bad();
}
- irn = new_Tuple(1, &irn);
+ replace_call(irn, call, mem, reg_jmp, exc_jmp);
+ return 1;
+}
- turn_into_tuple(call, pn_Call_max);
- set_Tuple_pred(call, pn_Call_M_regular, mem);
- set_Tuple_pred(call, pn_Call_X_regular, reg_jmp);
- set_Tuple_pred(call, pn_Call_X_except, exc_jmp);
- set_Tuple_pred(call, pn_Call_T_result, irn);
- set_Tuple_pred(call, pn_Call_M_except, mem);
- set_Tuple_pred(call, pn_Call_P_value_res_base, new_Bad());
+/* A mapper for the floating point exp. */
+int i_mapper_exp(ir_node *call, void *ctx) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
- return 1;
+ if (is_Const(val) && is_Const_null(val)) {
+ /* exp(0.0) = 1.0 */
+ ir_node *block = get_nodes_block(call);
+ ir_mode *mode = get_irn_mode(val);
+ ir_node *irn = new_r_Const(current_ir_graph, block, mode, get_mode_one(mode));
+ ir_node *mem = get_Call_mem(call);
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+}
+
+/* A mapper for the floating point sin. */
+int i_mapper_sin(ir_node *call, void *ctx) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (is_Const(val) && is_Const_null(val)) {
+ /* sin(0.0) = 0.0 */
+ ir_node *mem = get_Call_mem(call);
+ replace_call(val, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+}
+
+/* A mapper for the floating point cos. */
+int i_mapper_cos(ir_node *call, void *ctx) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (is_strictConv(val)) {
+ ir_node *op = get_Conv_op(val);
+ if (is_Minus(op)) {
+ /* cos(-x) = cos(x) with strictConv */
+ ir_node *block = get_nodes_block(call);
+ ir_mode *mode = get_irn_mode(val);
+ dbg_info *dbg = get_irn_dbg_info(val);
+
+ op = get_Minus_op(op);
+ val = new_rd_Conv(dbg, current_ir_graph, block, op, mode);
+ if (is_Conv(val)) {
+ /* still a Conv ? */
+ set_Conv_strict(val, 1);
+ }
+ set_Call_param(call, 0, val);
+ }
+ } else if (is_Minus(val)) {
+ /* cos(-x) = cos(x) */
+ val = get_Minus_op(val);
+ set_Call_param(call, 0, val);
+ }
+
+ if (is_Const(val) && is_Const_null(val)) {
+ /* cos(0.0) = 1.0 */
+ ir_node *block = get_nodes_block(call);
+ ir_mode *mode = get_irn_mode(val);
+ ir_node *irn = new_r_Const(current_ir_graph, block, mode, get_mode_one(mode));
+ ir_node *mem = get_Call_mem(call);
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+}
+
+/* A mapper for the floating point tan. */
+int i_mapper_tan(ir_node *call, void *ctx) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (is_Const(val) && is_Const_null(val)) {
+ /* tan(0.0) = 0.0 */
+ ir_node *mem = get_Call_mem(call);
+ replace_call(val, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+}
+
+/* A mapper for the floating point asin. */
+int i_mapper_asin(ir_node *call, void *ctx) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (is_Const(val) && is_Const_null(val)) {
+ /* asin(0.0) = 0.0 */
+ ir_node *mem = get_Call_mem(call);
+ replace_call(val, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+}
+
+/* A mapper for the floating point acos. */
+int i_mapper_acos(ir_node *call, void *ctx) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (is_Const(val) && is_Const_one(val)) {
+ /* acos(1.0) = 0.0 */
+ ir_node *block = get_nodes_block(call);
+ ir_mode *mode = get_irn_mode(val);
+ ir_node *irn = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+ ir_node *mem = get_Call_mem(call);
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+}
+
+/* A mapper for the floating point atan. */
+int i_mapper_atan(ir_node *call, void *ctx) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (is_Const(val) && is_Const_null(val)) {
+ /* atan(0.0) = 0.0 */
+ ir_node *mem = get_Call_mem(call);
+ replace_call(val, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+}
+
+/* A mapper for strcmp */
+int i_mapper_strcmp(ir_node *call, void *ctx) {
+ ir_node *left = get_Call_param(call, 0);
+ ir_node *right = get_Call_param(call, 1);
+ ir_node *irn;
+ (void) ctx;
+
+ if (left == right) {
+ /* a strcmp(s, s) ==> 0 */
+ ir_node *mem = get_Call_mem(call);
+ ir_node *adr = get_Call_ptr(call);
+ ir_entity *ent = get_SymConst_entity(adr);
+ ir_type *call_tp = get_entity_type(ent);
+ ir_type *res_tp = get_method_res_type(call_tp, 0);
+ ir_mode *mode = get_type_mode(res_tp);
+ ir_node *block = get_nodes_block(call);
+
+ irn = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+}
+
+/* A mapper for strncmp */
+int i_mapper_strncmp(ir_node *call, void *ctx) {
+ ir_node *left = get_Call_param(call, 0);
+ ir_node *right = get_Call_param(call, 1);
+ ir_node *len = get_Call_param(call, 2);
+ ir_node *irn;
+ (void) ctx;
+
+ if (left == right || (is_Const(len) && is_Const_null(len))) {
+ /* a strncmp(s, s, len) ==> 0 OR
+ a strncmp(a, b, 0) ==> 0 */
+ ir_node *mem = get_Call_mem(call);
+ ir_node *adr = get_Call_ptr(call);
+ ir_entity *ent = get_SymConst_entity(adr);
+ ir_type *call_tp = get_entity_type(ent);
+ ir_type *res_tp = get_method_res_type(call_tp, 0);
+ ir_mode *mode = get_type_mode(res_tp);
+ ir_node *block = get_nodes_block(call);
+
+ irn = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+}
+
+/* A mapper for memcpy */
+int i_mapper_memcpy(ir_node *call, void *ctx) {
+ ir_node *len = get_Call_param(call, 2);
+ (void) ctx;
+
+ if (is_Const(len) && is_Const_null(len)) {
+ /* a memcpy(d, s, 0) ==> d */
+ ir_node *mem = get_Call_mem(call);
+ ir_node *dst = get_Call_param(call, 0);
+
+ replace_call(dst, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+}
+
+/* A mapper for memset */
+int i_mapper_memset(ir_node *call, void *ctx) {
+ ir_node *len = get_Call_param(call, 2);
+ (void) ctx;
+
+ if (is_Const(len) && is_Const_null(len)) {
+ /* a memset(d, C, 0) ==> d */
+ ir_node *mem = get_Call_mem(call);
+ ir_node *dst = get_Call_param(call, 0);
+
+ replace_call(dst, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
}
/**
projects / libfirm / blobdiff