#include "irprog.h"
#include "../besched.h"
+#include "../begnuas.h"
+#include "../beblocksched.h"
+#include "../benode.h"
#include "TEMPLATE_emitter.h"
#include "gen_TEMPLATE_emitter.h"
void TEMPLATE_emit_immediate(const ir_node *node)
{
- (void) node;
- /* TODO */
+ const TEMPLATE_attr_t *attr = get_irn_generic_attr_const(node);
+ be_emit_tarval(attr->value);
}
void TEMPLATE_emit_source_register(const ir_node *node, int pos)
/**
* Emits code for a unconditional jump.
*/
-static void emit_Jmp(const ir_node *node)
+static void emit_TEMPLATE_Jmp(const ir_node *node)
{
- ir_node *block;
-
- /* for now, the code works for scheduled and non-schedules blocks */
- block = get_nodes_block(node);
-
be_emit_cstring("\tjmp ");
TEMPLATE_emit_cfop_target(node);
be_emit_finish_line_gas(node);
}
+static void emit_be_IncSP(const ir_node *node)
+{
+ int offset = be_get_IncSP_offset(node);
+
+ if (offset == 0)
+ return;
+
+ /* downwards growing stack */
+ if (offset > 0) {
+ be_emit_cstring("\tsub ");
+ } else {
+ be_emit_cstring("\tadd ");
+ offset = -offset;
+ }
+
+ TEMPLATE_emit_source_register(node, 0);
+ be_emit_irprintf(", %d, ", offset);
+ TEMPLATE_emit_dest_register(node, 0);
+ be_emit_finish_line_gas(node);
+}
+
+static void emit_be_Return(const ir_node *node)
+{
+ be_emit_cstring("\tret");
+ be_emit_finish_line_gas(node);
+}
+
+static void emit_nothing(const ir_node *node)
+{
+ (void) node;
+}
+
+/**
+ * The type of a emitter function.
+ */
+typedef void (emit_func)(const ir_node *node);
+
+static inline void set_emitter(ir_op *op, emit_func func)
+{
+ op->ops.generic = (op_func)func;
+}
+
/**
* Enters the emitter functions for handled nodes into the generic
* pointer of an opcode.
*/
static void TEMPLATE_register_emitters(void)
{
-
-/* some convienience macros to register additional emitter functions
- (other than the generated ones) */
-#define TEMPLATE_EMIT(a) op_TEMPLATE_##a->ops.generic = (op_func)emit_TEMPLATE_##a
-#define EMIT(a) op_##a->ops.generic = (op_func)emit_##a
-#define BE_EMIT(a) op_be_##a->ops.generic = (op_func)emit_be_##a
-
/* first clear the generic function pointer for all ops */
clear_irp_opcodes_generic_func();
/* register all emitter functions defined in spec */
TEMPLATE_register_spec_emitters();
- /* register addtional emitter functions if needed */
- EMIT(Jmp);
+ /* custom emitters not provided by the spec */
+ set_emitter(op_TEMPLATE_Jmp, emit_TEMPLATE_Jmp);
+ set_emitter(op_be_Return, emit_be_Return);
+ set_emitter(op_be_IncSP, emit_be_IncSP);
-#undef TEMPLATE_EMIT
-#undef BE_EMIT
-#undef EMIT
+ /* no need to emit anything for the following nodes */
+ set_emitter(op_Phi, emit_nothing);
+ set_emitter(op_be_Keep, emit_nothing);
+ set_emitter(op_be_Start, emit_nothing);
+ set_emitter(op_be_Barrier, emit_nothing);
}
typedef void (*emit_func_ptr) (const ir_node *);
/**
* Emits code for a node.
*/
-void TEMPLATE_emit_node(const ir_node *node)
+static void TEMPLATE_emit_node(const ir_node *node)
{
ir_op *op = get_irn_op(node);
* Walks over the nodes in a block connected by scheduling edges
* and emits code for each node.
*/
-void TEMPLATE_gen_block(ir_node *block, void *data)
+static void TEMPLATE_emit_block(ir_node *block)
{
ir_node *node;
- (void) data;
-
- if (! is_Block(block))
- return;
be_gas_emit_block_name(block);
be_emit_cstring(":\n");
}
}
-
-/**
- * Emits code for function start.
- */
-void TEMPLATE_emit_func_prolog(ir_graph *irg)
-{
- const char *irg_name = get_entity_name(get_irg_entity(irg));
-
- /* TODO: emit function header */
- be_emit_cstring("/* start of ");
- be_emit_string(irg_name);
- be_emit_cstring(" */\n");
- be_emit_write_line();
-}
-
-/**
- * Emits code for function end
- */
-void TEMPLATE_emit_func_epilog(ir_graph *irg)
-{
- const char *irg_name = get_entity_name(get_irg_entity(irg));
-
- /* TODO: emit function end */
- be_emit_cstring("/* end of ");
- be_emit_string(irg_name);
- be_emit_cstring(" */\n");
- be_emit_write_line();
-}
-
/**
* Sets labels for control flow nodes (jump target)
- * TODO: Jump optimization
*/
-void TEMPLATE_gen_labels(ir_node *block, void *env)
+static void TEMPLATE_gen_labels(ir_node *block, void *env)
{
ir_node *pred;
int n = get_Block_n_cfgpreds(block);
/**
* Main driver
*/
-void TEMPLATE_gen_routine(const TEMPLATE_code_gen_t *cg, ir_graph *irg)
+void TEMPLATE_emit_routine(ir_graph *irg)
{
- (void)cg;
+ ir_node **block_schedule;
+ ir_entity *entity = get_irg_entity(irg);
+ int i;
+ int n;
/* register all emitter functions */
TEMPLATE_register_emitters();
- TEMPLATE_emit_func_prolog(irg);
+ /* create the block schedule */
+ block_schedule = be_create_block_schedule(irg);
+
+ /* emit assembler prolog */
+ be_gas_emit_function_prolog(entity, 4);
+
+ /* populate jump link fields with their destinations */
irg_block_walk_graph(irg, TEMPLATE_gen_labels, NULL, NULL);
- irg_walk_blkwise_graph(irg, NULL, TEMPLATE_gen_block, NULL);
- TEMPLATE_emit_func_epilog(irg);
+
+ n = ARR_LEN(block_schedule);
+ for (i = 0; i < n; ++i) {
+ ir_node *block = block_schedule[i];
+ TEMPLATE_emit_block(block);
+ }
+ be_gas_emit_function_epilog(entity);
}
projects / libfirm / blobdiff