#include "gmqcc.h"
#include "ir.h"
+/***********************************************************************
+ * Type sizes used at multiple points in the IR codegen
+ */
+
+size_t type_sizeof[TYPE_COUNT] = {
+ 1, /* TYPE_VOID */
+ 1, /* TYPE_STRING */
+ 1, /* TYPE_FLOAT */
+ 3, /* TYPE_VECTOR */
+ 1, /* TYPE_ENTITY */
+ 1, /* TYPE_FIELD */
+ 1, /* TYPE_FUNCTION */
+ 1, /* TYPE_POINTER */
+#if 0
+ 1, /* TYPE_INTEGER */
+#endif
+ 3, /* TYPE_VARIANT */
+};
+
+MEM_VEC_FUNCTIONS(ir_value_vector, ir_value*, v)
+
/***********************************************************************
*IR Builder
*/
self->bops[0] = NULL;
self->bops[1] = NULL;
MEM_VECTOR_INIT(self, phi);
+ MEM_VECTOR_INIT(self, params);
self->eid = 0;
return self;
}
MEM_VEC_FUNCTIONS(ir_instr, ir_phi_entry_t, phi)
+MEM_VEC_FUNCTIONS(ir_instr, ir_value*, params)
void ir_instr_delete(ir_instr *self)
{
if (ir_value_reads_remove (self->phi[i].value, idx)) GMQCC_SUPRESS_EMPTY_BODY;
}
MEM_VECTOR_CLEAR(self, phi);
+ for (i = 0; i < self->params_count; ++i) {
+ size_t idx;
+ if (ir_value_writes_find(self->params[i], self, &idx))
+ if (ir_value_writes_remove(self->params[i], idx)) GMQCC_SUPRESS_EMPTY_BODY;
+ if (ir_value_reads_find(self->params[i], self, &idx))
+ if (ir_value_reads_remove (self->params[i], idx)) GMQCC_SUPRESS_EMPTY_BODY;
+ }
+ MEM_VECTOR_CLEAR(self, params);
if (ir_instr_op(self, 0, NULL, false)) GMQCC_SUPRESS_EMPTY_BODY;
if (ir_instr_op(self, 1, NULL, false)) GMQCC_SUPRESS_EMPTY_BODY;
if (ir_instr_op(self, 2, NULL, false)) GMQCC_SUPRESS_EMPTY_BODY;
self = (ir_value*)mem_a(sizeof(*self));
self->vtype = vtype;
self->fieldtype = TYPE_VOID;
+ self->outtype = TYPE_VOID;
self->store = storetype;
MEM_VECTOR_INIT(self, reads);
MEM_VECTOR_INIT(self, writes);
return ir_instr_phi_add(self, pe);
}
+/* call related code */
+ir_instr* ir_block_create_call(ir_block *self, const char *label, ir_value *func, int ot)
+{
+ ir_value *out;
+ ir_instr *in;
+ in = ir_instr_new(self, INSTR_CALL0);
+ if (!in)
+ return NULL;
+ out = ir_value_out(self->owner, label, store_value, ot);
+ if (!out) {
+ ir_instr_delete(in);
+ return NULL;
+ }
+ if (!ir_instr_op(in, 0, out, true) ||
+ !ir_instr_op(in, 1, func, false) ||
+ !ir_block_instr_add(self, in))
+ {
+ ir_instr_delete(in);
+ ir_value_delete(out);
+ return NULL;
+ }
+ return in;
+}
+
+ir_value* ir_call_value(ir_instr *self)
+{
+ return self->_ops[0];
+}
+
+bool ir_call_param(ir_instr* self, ir_value *v)
+{
+ if (!ir_instr_params_add(self, v))
+ return false;
+ if (!ir_value_reads_add(v, self)) {
+ if (!ir_instr_params_remove(self, self->params_count-1))
+ GMQCC_SUPRESS_EMPTY_BODY;
+ return false;
+ }
+ return true;
+}
+
/* binary op related code */
ir_value* ir_block_create_binop(ir_block *self,
static bool function_allocator_alloc(function_allocator *alloc, const ir_value *var)
{
ir_value *slot;
- size_t vsize = 1;
+ size_t vsize = type_sizeof[var->vtype];
slot = ir_value_var("reg", store_global, var->vtype);
if (!slot)
return false;
- if (slot->vtype == TYPE_VECTOR || slot->vtype == TYPE_VARIANT)
- vsize = 3;
-
if (!ir_value_life_merge_into(slot, var))
goto localerror;
goto error;
/* adjust size for this slot */
- if (v->vtype == TYPE_VECTOR || v->vtype == TYPE_VARIANT)
- alloc.sizes[a] = 3;
+ if (alloc.sizes[a] < type_sizeof[v->vtype])
+ alloc.sizes[a] = type_sizeof[v->vtype];
- self->values[i]->code.slot = a;
+ self->values[i]->code.local = a;
break;
}
if (a >= alloc.locals_count) {
- self->values[i]->code.slot = alloc.locals_count;
+ self->values[i]->code.local = alloc.locals_count;
if (!function_allocator_alloc(&alloc, v))
goto error;
}
goto error;
}
+ self->allocated_locals = pos + alloc.sizes[alloc.sizes_count-1];
+
/* Take over the actual slot positions */
for (i = 0; i < self->values_count; ++i)
- self->values[i]->code.slot = alloc.positions[self->values[i]->code.slot];
+ self->values[i]->code.local = alloc.positions[self->values[i]->code.local];
goto cleanup;
static bool gen_blocks_recursive(ir_function *func, ir_block *block)
{
prog_section_statement stmt;
- prog_section_statement *stptr;
ir_instr *instr;
ir_block *target;
ir_block *ontrue;
/* otherwise we generate a jump instruction */
stmt.opcode = INSTR_GOTO;
- stmt.o1.s1 = (target->code_start-1) - code_statements_elements;
+ stmt.o1.s1 = (target->code_start) - code_statements_elements;
stmt.o2.s1 = 0;
stmt.o3.s1 = 0;
if (code_statements_add(stmt) < 0)
*/
stmt.o1.u1 = instr->_ops[0]->code.globaladdr;
-
+ stmt.o2.u1 = 0;
stmt.o3.s1 = 0;
+
if (ontrue->generated) {
stmt.opcode = INSTR_IF;
stmt.o2.s1 = (ontrue->code_start-1) - code_statements_elements;
}
/* neither ontrue nor onfalse exist */
stmt.opcode = INSTR_IFNOT;
- stidx = code_statements_elements - 1;
+ stidx = code_statements_elements;
if (code_statements_add(stmt) < 0)
return false;
- stptr = &code_statements_data[stidx];
/* on false we jump, so add ontrue-path */
if (!gen_blocks_recursive(func, ontrue))
return false;
/* fixup the jump address */
- stptr->o2.s1 = (ontrue->code_start-1) - (stidx+1);
+ code_statements_data[stidx].o2.s1 = code_statements_elements - stidx;
/* generate onfalse path */
if (onfalse->generated) {
+ /* fixup the jump address */
+ code_statements_data[stidx].o2.s1 = (onfalse->code_start) - (stidx);
/* may have been generated in the previous recursive call */
stmt.opcode = INSTR_GOTO;
+ stmt.o1.s1 = (onfalse->code_start) - code_statements_elements;
stmt.o2.s1 = 0;
stmt.o3.s1 = 0;
- stmt.o1.s1 = (onfalse->code_start-1) - code_statements_elements;
return (code_statements_add(stmt) >= 0);
}
/* if not, generate now */
}
if (instr->opcode >= INSTR_CALL0 && instr->opcode <= INSTR_CALL8) {
+ /* Trivial call translation:
+ * copy all params to OFS_PARM*
+ *
+ * NOTES on how to do it better without much trouble:
+ * -) The liferanges!
+ * Simply check the liferange of all parameters for
+ * other CALLs. For each param with no CALL in its
+ * liferange, we can store it in an OFS_PARM at
+ * generation already. This would even include later
+ * reuse.... probably... :)
+ */
printf("TODO: call instruction\n");
return false;
}
ir_function *irfun;
size_t i;
+ size_t local_var_end;
if (!global->isconst ||
!global->constval.vfunc)
}
fun.firstlocal = code_globals_elements;
- fun.locals = irfun->locals_count;
+ fun.locals = irfun->allocated_locals + irfun->locals_count;
+
+ local_var_end = 0;
for (i = 0; i < irfun->locals_count; ++i) {
if (!ir_builder_gen_global(ir, irfun->locals[i])) {
printf("Failed to generate global %s\n", irfun->locals[i]->name);
return false;
}
}
+ if (irfun->locals_count) {
+ ir_value *last = irfun->locals[irfun->locals_count-1];
+ local_var_end = last->code.globaladdr;
+ local_var_end += type_sizeof[last->vtype];
+ }
+ for (i = 0; i < irfun->values_count; ++i)
+ {
+ /* generate code.globaladdr for ssa values */
+ ir_value *v = irfun->values[i];
+ v->code.globaladdr = local_var_end + v->code.local;
+ }
+ for (i = 0; i < irfun->locals_count; ++i) {
+ /* fill the locals with zeros */
+ code_globals_add(0);
+ }
fun.entry = code_statements_elements;
if (!gen_function_code(irfun)) {