return 0;
}
-/* A mapper for the floating point sin. */
-int i_mapper_sin(ir_node *call, void *ctx) {
+/**
+ * A mapper for mapping f(0.0) to 0.0.
+ */
+static int i_mapper_zero_to_zero(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 */
+ /* f(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) {
+/**
+ * A mapper for mapping f(1.0) to 0.0.
+ */
+static int i_mapper_one_to_zero(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 mapping a functions with the following characteristics:
+ * f(-x) = f(x).
+ * f(0.0) = 1.0
+ */
+static int i_mapper_symmetric_zero_to_one(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 */
+ /* f(-x) = f(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);
set_Call_param(call, 0, val);
}
} else if (is_Minus(val)) {
- /* cos(-x) = cos(x) */
+ /* f(-x) = f(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 */
+ /* f(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));
return 0;
}
+/* A mapper for the floating point sin. */
+int i_mapper_sin(ir_node *call, void *ctx) {
+ /* sin(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, ctx);
+}
+
+/* A mapper for the floating point cos. */
+int i_mapper_cos(ir_node *call, void *ctx) {
+ /* cos(0.0) = 1.0, cos(-x) = x */
+ return i_mapper_symmetric_zero_to_one(call, ctx);
+}
+
/* 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;
+ /* tan(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, ctx);
}
/* 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;
+ /* asin(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, ctx);
}
/* 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;
+ /* acos(1.0) = 0.0 */
+ return i_mapper_one_to_zero(call, ctx);
}
/* 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;
+ /* atan(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, 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 the floating point sinh. */
+int i_mapper_sinh(ir_node *call, void *ctx) {
+ /* sinh(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, ctx);
+}
+
+/* A mapper for the floating point cosh. */
+int i_mapper_cosh(ir_node *call, void *ctx) {
+ /* cosh(0.0) = 1.0, cosh(-x) = x */
+ return i_mapper_symmetric_zero_to_one(call, ctx);
+}
+
+/* A mapper for the floating point tanh. */
+int i_mapper_tanh(ir_node *call, void *ctx) {
+ /* tanh(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, ctx);
}
/* A mapper for strcmp */