X-Git-Url: https://git.xonotic.org/?p=xonotic%2Fgmqcc.git;a=blobdiff_plain;f=ir.c;h=c792b24184980544f3dabe76f0d404ee55443233;hp=57f71ae376845ccb2ace458d285d9632f2151981;hb=e143db0caec8f3c61008cff5b1abcf0312666efe;hpb=60a5d8ab4f2dc377125a269401d6601ad83d948d diff --git a/ir.c b/ir.c index 57f71ae..c792b24 100644 --- a/ir.c +++ b/ir.c @@ -29,6 +29,21 @@ * Type sizes used at multiple points in the IR codegen */ +const char *type_name[TYPE_COUNT] = { + "void", + "string", + "float", + "vector", + "entity", + "field", + "function", + "pointer", +#if 0 + "integer", +#endif + "variant" +}; + size_t type_sizeof[TYPE_COUNT] = { 1, /* TYPE_VOID */ 1, /* TYPE_STRING */ @@ -54,8 +69,9 @@ uint16_t type_store_instr[TYPE_COUNT] = { INSTR_STORE_FNC, INSTR_STORE_ENT, /* should use I */ #if 0 - INSTR_STORE_ENT, /* integer type */ + INSTR_STORE_I, /* integer type */ #endif + INSTR_STORE_V, /* variant, should never be accessed */ }; @@ -71,15 +87,78 @@ uint16_t type_storep_instr[TYPE_COUNT] = { #if 0 INSTR_STOREP_ENT, /* integer type */ #endif + INSTR_STOREP_V, /* variant, should never be accessed */ }; +uint16_t type_eq_instr[TYPE_COUNT] = { + INSTR_EQ_F, /* should use I when having integer support */ + INSTR_EQ_S, + INSTR_EQ_F, + INSTR_EQ_V, + INSTR_EQ_E, + INSTR_EQ_E, /* FLD has no comparison */ + INSTR_EQ_FNC, + INSTR_EQ_E, /* should use I */ +#if 0 + INSTR_EQ_I, +#endif + + INSTR_EQ_V, /* variant, should never be accessed */ +}; + +uint16_t type_ne_instr[TYPE_COUNT] = { + INSTR_NE_F, /* should use I when having integer support */ + INSTR_NE_S, + INSTR_NE_F, + INSTR_NE_V, + INSTR_NE_E, + INSTR_NE_E, /* FLD has no comparison */ + INSTR_NE_FNC, + INSTR_NE_E, /* should use I */ +#if 0 + INSTR_NE_I, +#endif + + INSTR_NE_V, /* variant, should never be accessed */ +}; + MEM_VEC_FUNCTIONS(ir_value_vector, ir_value*, v) +static void irerror(lex_ctx ctx, const char *msg, ...) +{ + va_list ap; + va_start(ap, msg); + cvprintmsg(ctx, LVL_ERROR, "internal error", msg, ap); + va_end(ap); +} + +static bool irwarning(lex_ctx ctx, int warntype, const char *fmt, ...) +{ + va_list ap; + int lvl = LVL_WARNING; + + if (warntype && !OPTS_WARN(warntype)) + return false; + + if (opts_werror) + lvl = LVL_ERROR; + + va_start(ap, fmt); + vprintmsg(lvl, ctx.file, ctx.line, "warning", fmt, ap); + va_end(ap); + + return opts_werror; +} + /*********************************************************************** *IR Builder */ +static void ir_block_delete_quick(ir_block* self); +static void ir_instr_delete_quick(ir_instr *self); +static void ir_function_delete_quick(ir_function *self); + ir_builder* ir_builder_new(const char *modulename) { ir_builder* self; @@ -91,40 +170,42 @@ ir_builder* ir_builder_new(const char *modulename) MEM_VECTOR_INIT(self, functions); MEM_VECTOR_INIT(self, globals); MEM_VECTOR_INIT(self, fields); + MEM_VECTOR_INIT(self, filenames); + MEM_VECTOR_INIT(self, filestrings); + self->str_immediate = 0; self->name = NULL; if (!ir_builder_set_name(self, modulename)) { mem_d(self); return NULL; } - /* globals which always exist */ - - /* for now we give it a vector size */ - ir_builder_create_global(self, "OFS_RETURN", TYPE_VARIANT); - return self; } -MEM_VEC_FUNCTIONS(ir_builder, ir_value*, globals) -MEM_VEC_FUNCTIONS(ir_builder, ir_value*, fields) +MEM_VEC_FUNCTIONS(ir_builder, ir_value*, globals) +MEM_VEC_FUNCTIONS(ir_builder, ir_value*, fields) MEM_VEC_FUNCTIONS(ir_builder, ir_function*, functions) +MEM_VEC_FUNCTIONS(ir_builder, const char*, filenames) +MEM_VEC_FUNCTIONS(ir_builder, qcint, filestrings) void ir_builder_delete(ir_builder* self) { size_t i; mem_d((void*)self->name); for (i = 0; i != self->functions_count; ++i) { - ir_function_delete(self->functions[i]); + ir_function_delete_quick(self->functions[i]); } MEM_VECTOR_CLEAR(self, functions); for (i = 0; i != self->globals_count; ++i) { ir_value_delete(self->globals[i]); } - MEM_VECTOR_CLEAR(self, fields); + MEM_VECTOR_CLEAR(self, globals); for (i = 0; i != self->fields_count; ++i) { ir_value_delete(self->fields[i]); } MEM_VECTOR_CLEAR(self, fields); + MEM_VECTOR_CLEAR(self, filenames); + MEM_VECTOR_CLEAR(self, filestrings); mem_d(self); } @@ -187,9 +268,14 @@ ir_value* ir_builder_get_global(ir_builder *self, const char *name) ir_value* ir_builder_create_global(ir_builder *self, const char *name, int vtype) { - ir_value *ve = ir_builder_get_global(self, name); - if (ve) { - return NULL; + ir_value *ve; + + if (name && name[0] != '#') + { + ve = ir_builder_get_global(self, name); + if (ve) { + return NULL; + } } ve = ir_value_var(name, store_global, vtype); @@ -244,6 +330,8 @@ ir_function* ir_function_new(ir_builder* owner, int outtype) if (!self) return NULL; + memset(self, 0, sizeof(*self)); + self->name = NULL; if (!ir_function_set_name(self, "<@unnamed>")) { mem_d(self); @@ -260,6 +348,9 @@ ir_function* ir_function_new(ir_builder* owner, int outtype) MEM_VECTOR_INIT(self, values); MEM_VECTOR_INIT(self, locals); + self->code_function_def = -1; + self->allocated_locals = 0; + self->run_id = 0; return self; } @@ -276,6 +367,30 @@ bool ir_function_set_name(ir_function *self, const char *name) return !!self->name; } +static void ir_function_delete_quick(ir_function *self) +{ + size_t i; + mem_d((void*)self->name); + + for (i = 0; i != self->blocks_count; ++i) + ir_block_delete_quick(self->blocks[i]); + MEM_VECTOR_CLEAR(self, blocks); + + MEM_VECTOR_CLEAR(self, params); + + for (i = 0; i != self->values_count; ++i) + ir_value_delete(self->values[i]); + MEM_VECTOR_CLEAR(self, values); + + for (i = 0; i != self->locals_count; ++i) + ir_value_delete(self->locals[i]); + MEM_VECTOR_CLEAR(self, locals); + + /* self->value is deleted by the builder */ + + mem_d(self); +} + void ir_function_delete(ir_function *self) { size_t i; @@ -346,15 +461,17 @@ ir_value* ir_function_get_local(ir_function *self, const char *name) ir_value* ir_function_create_local(ir_function *self, const char *name, int vtype, bool param) { - ir_value *ve = ir_function_get_local(self, name); - if (ve) { + ir_value *ve; + + /* + if (ir_function_get_local(self, name)) return NULL; - } + */ if (param && self->locals_count && self->locals[self->locals_count-1]->store != store_param) { - printf("cannot add parameters after adding locals\n"); + irerror(self->context, "cannot add parameters after adding locals"); return NULL; } @@ -380,7 +497,7 @@ ir_block* ir_block_new(ir_function* owner, const char *name) memset(self, 0, sizeof(*self)); self->label = NULL; - if (!ir_block_set_label(self, name)) { + if (name && !ir_block_set_label(self, name)) { mem_d(self); return NULL; } @@ -406,10 +523,23 @@ MEM_VEC_FUNCTIONS_ALL(ir_block, ir_block*, entries) MEM_VEC_FUNCTIONS_ALL(ir_block, ir_block*, exits) MEM_VEC_FUNCTIONS_ALL(ir_block, ir_value*, living) +static void ir_block_delete_quick(ir_block* self) +{ + size_t i; + if (self->label) mem_d(self->label); + for (i = 0; i != self->instr_count; ++i) + ir_instr_delete_quick(self->instr[i]); + MEM_VECTOR_CLEAR(self, instr); + MEM_VECTOR_CLEAR(self, entries); + MEM_VECTOR_CLEAR(self, exits); + MEM_VECTOR_CLEAR(self, living); + mem_d(self); +} + void ir_block_delete(ir_block* self) { size_t i; - mem_d(self->label); + if (self->label) mem_d(self->label); for (i = 0; i != self->instr_count; ++i) ir_instr_delete(self->instr[i]); MEM_VECTOR_CLEAR(self, instr); @@ -456,6 +586,13 @@ ir_instr* ir_instr_new(ir_block* owner, int op) MEM_VEC_FUNCTIONS(ir_instr, ir_phi_entry_t, phi) MEM_VEC_FUNCTIONS(ir_instr, ir_value*, params) +static void ir_instr_delete_quick(ir_instr *self) +{ + MEM_VECTOR_CLEAR(self, phi); + MEM_VECTOR_CLEAR(self, params); + mem_d(self); +} + void ir_instr_delete(ir_instr *self) { size_t i; @@ -548,11 +685,20 @@ ir_value* ir_value_var(const char *name, int storetype, int vtype) self->context.file = "<@no context>"; self->context.line = 0; self->name = NULL; - ir_value_set_name(self, name); + if (name && !ir_value_set_name(self, name)) { + irerror(self->context, "out of memory"); + mem_d(self); + return NULL; + } memset(&self->constval, 0, sizeof(self->constval)); memset(&self->code, 0, sizeof(self->code)); + self->members[0] = NULL; + self->members[1] = NULL; + self->members[2] = NULL; + self->memberof = NULL; + MEM_VECTOR_INIT(self, life); return self; } @@ -591,10 +737,11 @@ ir_value* ir_value_vector_member(ir_value *self, unsigned int member) } else { - printf("invalid member access on %s\n", self->name); + irerror(self->context, "invalid member access on %s", self->name); return NULL; } + m->memberof = self; return m; } @@ -635,11 +782,12 @@ void ir_value_delete(ir_value* self) mem_d(self); } -void ir_value_set_name(ir_value *self, const char *name) +bool ir_value_set_name(ir_value *self, const char *name) { if (self->name) mem_d((void*)self->name); self->name = util_strdup(name); + return !!self->name; } bool ir_value_set_float(ir_value *self, float f) @@ -678,11 +826,22 @@ bool ir_value_set_field(ir_value *self, ir_value *fld) return true; } +static char *ir_strdup(const char *str) +{ + if (str && !*str) { + /* actually dup empty strings */ + char *out = mem_a(1); + *out = 0; + return out; + } + return util_strdup(str); +} + bool ir_value_set_string(ir_value *self, const char *str) { if (self->vtype != TYPE_STRING) return false; - self->constval.vstring = util_strdup(str); + self->constval.vstring = ir_strdup(str); self->isconst = true; return true; } @@ -820,14 +979,14 @@ bool ir_value_life_merge_into(ir_value *self, const ir_value *other) } if (life->start < entry->start && - life->end >= entry->start) + life->end+1 >= entry->start) { /* starts earlier and overlaps */ entry->start = life->start; } - if (life->end > entry->end && - life->start-1 <= entry->end) + if (life->end > entry->end && + life->start <= entry->end+1) { /* ends later and overlaps */ entry->end = life->end; @@ -888,13 +1047,8 @@ bool ir_values_overlap(const ir_value *a, const ir_value *b) /* check if the entries overlap, for that, * both must start before the other one ends. */ -#if defined(LIFE_RANGE_WITHOUT_LAST_READ) - if (la->start <= lb->end && - lb->start <= la->end) -#else - if (la->start < lb->end && - lb->start < la->end) -#endif + if (la->start < lb->end && + lb->start < la->end) { return true; } @@ -911,7 +1065,7 @@ bool ir_values_overlap(const ir_value *a, const ir_value *b) if (++la == enda) break; } - else if (lb->start < la->start) + else /* if (lb->start < la->start) actually <= */ { /* order: B A, move B forward * check if we hit the end with B @@ -936,9 +1090,9 @@ bool ir_block_create_store_op(ir_block *self, int op, ir_value *target, ir_value if (target->store == store_value && (op < INSTR_STOREP_F || op > INSTR_STOREP_FNC)) { - fprintf(stderr, "cannot store to an SSA value\n"); - fprintf(stderr, "trying to store: %s <- %s\n", target->name, what->name); - fprintf(stderr, "instruction: %s\n", asm_instr[op].m); + irerror(self->context, "cannot store to an SSA value"); + irerror(self->context, "trying to store: %s <- %s", target->name, what->name); + irerror(self->context, "instruction: %s", asm_instr[op].m); return false; } @@ -1002,7 +1156,7 @@ bool ir_block_create_return(ir_block *self, ir_value *v) { ir_instr *in; if (self->final) { - fprintf(stderr, "block already ended (%s)\n", self->label); + irerror(self->context, "block already ended (%s)", self->label); return false; } self->final = true; @@ -1011,11 +1165,11 @@ bool ir_block_create_return(ir_block *self, ir_value *v) if (!in) return false; - if (!ir_instr_op(in, 0, v, false) || - !ir_block_instr_add(self, in) ) - { + if (v && !ir_instr_op(in, 0, v, false)) + return false; + + if (!ir_block_instr_add(self, in)) return false; - } return true; } @@ -1024,7 +1178,7 @@ bool ir_block_create_if(ir_block *self, ir_value *v, { ir_instr *in; if (self->final) { - fprintf(stderr, "block already ended (%s)\n", self->label); + irerror(self->context, "block already ended (%s)", self->label); return false; } self->final = true; @@ -1058,7 +1212,7 @@ bool ir_block_create_jump(ir_block *self, ir_block *to) { ir_instr *in; if (self->final) { - fprintf(stderr, "block already ended (%s)\n", self->label); + irerror(self->context, "block already ended (%s)", self->label); return false; } self->final = true; @@ -1082,7 +1236,7 @@ bool ir_block_create_goto(ir_block *self, ir_block *to) { ir_instr *in; if (self->final) { - fprintf(stderr, "block already ended (%s)\n", self->label); + irerror(self->context, "block already ended (%s)", self->label); return false; } self->final = true; @@ -1140,7 +1294,7 @@ bool ir_phi_add(ir_instr* self, ir_block *b, ir_value *v) /* Must not be possible to cause this, otherwise the AST * is doing something wrong. */ - fprintf(stderr, "Invalid entry block for PHI\n"); + irerror(self->context, "Invalid entry block for PHI"); abort(); } @@ -1159,7 +1313,7 @@ ir_instr* ir_block_create_call(ir_block *self, const char *label, ir_value *func in = ir_instr_new(self, INSTR_CALL0); if (!in) return NULL; - out = ir_value_out(self->owner, label, store_return, func->outtype); + out = ir_value_out(self->owner, label, (func->outtype == TYPE_VOID) ? store_return : store_value, func->outtype); if (!out) { ir_instr_delete(in); return NULL; @@ -1380,11 +1534,12 @@ ir_value* ir_block_create_load_from_ent(ir_block *self, const char *label, ir_va switch (outype) { - case TYPE_FLOAT: op = INSTR_LOAD_F; break; - case TYPE_VECTOR: op = INSTR_LOAD_V; break; - case TYPE_STRING: op = INSTR_LOAD_S; break; - case TYPE_FIELD: op = INSTR_LOAD_FLD; break; - case TYPE_ENTITY: op = INSTR_LOAD_ENT; break; + case TYPE_FLOAT: op = INSTR_LOAD_F; break; + case TYPE_VECTOR: op = INSTR_LOAD_V; break; + case TYPE_STRING: op = INSTR_LOAD_S; break; + case TYPE_FIELD: op = INSTR_LOAD_FLD; break; + case TYPE_ENTITY: op = INSTR_LOAD_ENT; break; + case TYPE_FUNCTION: op = INSTR_LOAD_FNC; break; #if 0 case TYPE_POINTER: op = INSTR_LOAD_I; break; case TYPE_INTEGER: op = INSTR_LOAD_I; break; @@ -1719,11 +1874,25 @@ bool ir_function_calculate_liferanges(ir_function *self) { if (self->blocks[i]->is_return) { + self->blocks[i]->living_count = 0; if (!ir_block_life_propagate(self->blocks[i], NULL, &changed)) return false; } } } while (changed); + if (self->blocks_count) { + ir_block *block = self->blocks[0]; + for (i = 0; i < block->living_count; ++i) { + ir_value *v = block->living[i]; + if (v->memberof || v->store != store_local) + continue; + if (irwarning(v->context, WARN_USED_UNINITIALIZED, + "variable `%s` may be used uninitialized in this function", v->name)) + { + return false; + } + } + } return true; } @@ -1777,7 +1946,7 @@ bool ir_function_allocate_locals(ir_function *self) function_allocator alloc; - if (!self->locals_count) + if (!self->locals_count && !self->values_count) return true; MEM_VECTOR_INIT(&alloc, locals); @@ -1822,6 +1991,10 @@ bool ir_function_allocate_locals(ir_function *self) } } + if (!alloc.sizes) { + goto cleanup; + } + /* Adjust slot positions based on sizes */ if (!function_allocator_positions_add(&alloc, 0)) goto error; @@ -1840,8 +2013,9 @@ bool ir_function_allocate_locals(ir_function *self) self->allocated_locals = pos + alloc.sizes[alloc.sizes_count-1]; /* Take over the actual slot positions */ - for (i = 0; i < self->values_count; ++i) + for (i = 0; i < self->values_count; ++i) { self->values[i]->code.local = alloc.positions[self->values[i]->code.local]; + } goto cleanup; @@ -1879,6 +2053,15 @@ static void ir_op_read_write(int op, size_t *read, size_t *write) *write = 0; *read = 1; break; + case INSTR_STOREP_F: + case INSTR_STOREP_V: + case INSTR_STOREP_S: + case INSTR_STOREP_ENT: + case INSTR_STOREP_FLD: + case INSTR_STOREP_FNC: + *write = 0; + *read = 7; + break; default: *write = 1; *read = 6; @@ -1896,7 +2079,7 @@ static bool ir_block_living_add_instr(ir_block *self, size_t eid) tempbool = ir_value_life_merge(self->living[i], eid); /* debug if (tempbool) - fprintf(stderr, "block_living_add_instr() value instruction added %s: %i\n", self->living[i]->_name, (int)eid); + irerror(self->context, "block_living_add_instr() value instruction added %s: %i", self->living[i]->_name, (int)eid); */ changed = changed || tempbool; } @@ -1931,7 +2114,7 @@ static bool ir_block_life_prop_previous(ir_block* self, ir_block *prev, bool *ch if (!ir_block_living_add(self, prev->living[i])) return false; /* - printf("%s got from prev: %s\n", self->label, prev->living[i]->_name); + irerror(self->contextt from prev: %s", self->label, prev->living[i]->_name); */ } return true; @@ -1945,17 +2128,9 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change size_t i, o, p; /* bitmasks which operands are read from or written to */ size_t read, write; -#if defined(LIFE_RANGE_WITHOUT_LAST_READ) - size_t rd; - new_reads_t new_reads; -#endif char dbg_ind[16] = { '#', '0' }; (void)dbg_ind; -#if defined(LIFE_RANGE_WITHOUT_LAST_READ) - MEM_VECTOR_INIT(&new_reads, v); -#endif - if (prev) { if (!ir_block_life_prop_previous(self, prev, changed)) @@ -1971,24 +2146,44 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change for (p = 0; p < instr->phi_count; ++p) { value = instr->phi[p].value; -#if ! defined(LIFE_RANGE_WITHOUT_LAST_READ) + if (value->memberof) + value = value->memberof; if (!ir_block_living_find(self, value, NULL) && !ir_block_living_add(self, value)) { - goto on_error; + return false; } -#else - if (!new_reads_t_v_find(&new_reads, value, NULL)) + } + + /* call params are read operands too */ + for (p = 0; p < instr->params_count; ++p) + { + value = instr->params[p]; + if (value->memberof) + value = value->memberof; + if (!ir_block_living_find(self, value, NULL) && + !ir_block_living_add(self, value)) { - if (!new_reads_t_v_add(&new_reads, value)) - goto on_error; + return false; } -#endif } /* See which operands are read and write operands */ ir_op_read_write(instr->opcode, &read, &write); + if (instr->opcode == INSTR_MUL_VF) + { + /* the float source will get an additional lifetime */ + tempbool = ir_value_life_merge(instr->_ops[2], instr->eid+1); + *changed = *changed || tempbool; + } + else if (instr->opcode == INSTR_MUL_FV) + { + /* the float source will get an additional lifetime */ + tempbool = ir_value_life_merge(instr->_ops[1], instr->eid+1); + *changed = *changed || tempbool; + } + /* Go through the 3 main operands */ for (o = 0; o < 3; ++o) { @@ -1996,6 +2191,8 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change continue; value = instr->_ops[o]; + if (value->memberof) + value = value->memberof; /* We only care about locals */ /* we also calculate parameter liferanges so that locals @@ -2008,20 +2205,11 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change /* read operands */ if (read & (1<_name); */ - if (!new_reads_t_v_find(&new_reads, value, NULL)) - { - if (!new_reads_t_v_add(&new_reads, value)) - goto on_error; + return false; } -#endif } /* write operands */ @@ -2033,13 +2221,7 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change { size_t idx; bool in_living = ir_block_living_find(self, value, &idx); -#if defined(LIFE_RANGE_WITHOUT_LAST_READ) - size_t readidx; - bool in_reads = new_reads_t_v_find(&new_reads, value, &readidx); - if (!in_living && !in_reads) -#else if (!in_living) -#endif { /* If the value isn't alive it hasn't been read before... */ /* TODO: See if the warning can be emitted during parsing or AST processing @@ -2049,7 +2231,7 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change * since this function is run multiple times. */ /* For now: debug info: */ - fprintf(stderr, "Value only written %s\n", value->name); + /* fprintf(stderr, "Value only written %s\n", value->name); */ tempbool = ir_value_life_merge(value, instr->eid); *changed = *changed || tempbool; /* @@ -2068,16 +2250,8 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change */ *changed = *changed || tempbool; /* Then remove */ -#if ! defined(LIFE_RANGE_WITHOUT_LAST_READ) if (!ir_block_living_remove(self, idx)) - goto on_error; -#else - if (in_reads) - { - if (!new_reads_t_v_remove(&new_reads, readidx)) - goto on_error; - } -#endif + return false; } } } @@ -2086,21 +2260,6 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change /*fprintf(stderr, "living added values\n");*/ *changed = *changed || tempbool; -#if defined(LIFE_RANGE_WITHOUT_LAST_READ) - /* new reads: */ - for (rd = 0; rd < new_reads.v_count; ++rd) - { - if (!ir_block_living_find(self, new_reads.v[rd], NULL)) { - if (!ir_block_living_add(self, new_reads.v[rd])) - goto on_error; - } - if (!i && !self->entries_count) { - /* fix the top */ - *changed = *changed || ir_value_life_merge(new_reads.v[rd], instr->eid); - } - } - MEM_VECTOR_CLEAR(&new_reads, v); -#endif } if (self->run_id == self->owner->run_id) @@ -2115,11 +2274,6 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change } return true; -on_error: -#if defined(LIFE_RANGE_WITHOUT_LAST_READ) - MEM_VECTOR_CLEAR(&new_reads, v); -#endif - return false; } /*********************************************************************** @@ -2137,7 +2291,7 @@ on_error: * * Breaking conventions is annoying... */ -static bool ir_builder_gen_global(ir_builder *self, ir_value *global); +static bool ir_builder_gen_global(ir_builder *self, ir_value *global, bool islocal); static bool gen_global_field(ir_value *global) { @@ -2145,7 +2299,7 @@ static bool gen_global_field(ir_value *global) { ir_value *fld = global->constval.vpointer; if (!fld) { - printf("Invalid field constant with no field: %s\n", global->name); + irerror(global->context, "Invalid field constant with no field: %s", global->name); return false; } @@ -2158,7 +2312,7 @@ static bool gen_global_field(ir_value *global) * for functions... might as well support that here. */ if (!fld->code.globaladdr) { - printf("FIXME: Relocation support\n"); + irerror(global->context, "FIXME: Relocation support"); return false; } @@ -2188,7 +2342,7 @@ static bool gen_global_pointer(ir_value *global) { ir_value *target = global->constval.vpointer; if (!target) { - printf("Invalid pointer constant: %s\n", global->name); + irerror(global->context, "Invalid pointer constant: %s", global->name); /* NULL pointers are pointing to the NULL constant, which also * sits at address 0, but still has an ir_value for itself. */ @@ -2204,7 +2358,7 @@ static bool gen_global_pointer(ir_value *global) /* FIXME: Check for the constant nullptr ir_value! * because then code.globaladdr being 0 is valid. */ - printf("FIXME: Relocation support\n"); + irerror(global->context, "FIXME: Relocation support"); return false; } @@ -2237,7 +2391,7 @@ tailcall: instr = block->instr[i]; if (instr->opcode == VINSTR_PHI) { - printf("cannot generate virtual instruction (phi)\n"); + irerror(block->context, "cannot generate virtual instruction (phi)"); return false; } @@ -2276,13 +2430,13 @@ tailcall: if (ontrue->generated) { stmt.opcode = INSTR_IF; - stmt.o2.s1 = (ontrue->code_start-1) - code_statements_elements; + stmt.o2.s1 = (ontrue->code_start) - code_statements_elements; if (code_statements_add(stmt) < 0) return false; } if (onfalse->generated) { stmt.opcode = INSTR_IFNOT; - stmt.o2.s1 = (onfalse->code_start-1) - code_statements_elements; + stmt.o2.s1 = (onfalse->code_start) - code_statements_elements; if (code_statements_add(stmt) < 0) return false; } @@ -2378,7 +2532,7 @@ tailcall: } if (instr->opcode == INSTR_STATE) { - printf("TODO: state instruction\n"); + irerror(block->context, "TODO: state instruction"); return false; } @@ -2427,7 +2581,7 @@ static bool gen_function_code(ir_function *self) * for now. Dead blocks will not be translated obviously. */ if (!self->blocks_count) { - printf("Function '%s' declared without body.\n", self->name); + irerror(self->context, "Function '%s' declared without body.", self->name); return false; } @@ -2436,7 +2590,7 @@ static bool gen_function_code(ir_function *self) return true; if (!gen_blocks_recursive(self, block)) { - printf("failed to generate blocks for '%s'\n", self->name); + irerror(self->context, "failed to generate blocks for '%s'", self->name); return false; } @@ -2450,6 +2604,27 @@ static bool gen_function_code(ir_function *self) return true; } +static qcint ir_builder_filestring(ir_builder *ir, const char *filename) +{ + /* NOTE: filename pointers are copied, we never strdup them, + * thus we can use pointer-comparison to find the string. + */ + size_t i; + qcint str; + + for (i = 0; i < ir->filenames_count; ++i) { + if (ir->filenames[i] == filename) + return ir->filestrings[i]; + } + + str = code_genstring(filename); + if (!ir_builder_filenames_add(ir, filename)) + return 0; + if (!ir_builder_filestrings_add(ir, str)) + ir->filenames_count--; + return str; +} + static bool gen_global_function(ir_builder *ir, ir_value *global) { prog_section_function fun; @@ -2460,14 +2635,14 @@ static bool gen_global_function(ir_builder *ir, ir_value *global) if (!global->isconst || (!global->constval.vfunc)) { - printf("Invalid state of function-global: not constant: %s\n", global->name); + irerror(global->context, "Invalid state of function-global: not constant: %s", global->name); return false; } irfun = global->constval.vfunc; fun.name = global->code.name; - fun.file = code_cachedstring(global->context.file); + fun.file = ir_builder_filestring(ir, global->context.file); fun.profile = 0; /* always 0 */ fun.nargs = irfun->params_count; @@ -2479,12 +2654,11 @@ static bool gen_global_function(ir_builder *ir, ir_value *global) } fun.firstlocal = code_globals_elements; - fun.locals = irfun->allocated_locals + irfun->locals_count; - local_var_end = 0; + local_var_end = fun.firstlocal; 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); + if (!ir_builder_gen_global(ir, irfun->locals[i], true)) { + irerror(irfun->locals[i]->context, "Failed to generate local %s", irfun->locals[i]->name); return false; } } @@ -2499,25 +2673,54 @@ static bool gen_global_function(ir_builder *ir, ir_value *global) ir_value *v = irfun->values[i]; ir_value_code_setaddr(v, local_var_end + v->code.local); } - for (i = 0; i < irfun->locals_count; ++i) { + for (i = 0; i < irfun->allocated_locals; ++i) { /* fill the locals with zeros */ code_globals_add(0); } + fun.locals = code_globals_elements - fun.firstlocal; + if (irfun->builtin) fun.entry = irfun->builtin; else { + irfun->code_function_def = code_functions_elements; fun.entry = code_statements_elements; - if (!gen_function_code(irfun)) { - printf("Failed to generate code for function %s\n", irfun->name); - return false; - } } return (code_functions_add(fun) >= 0); } -static bool ir_builder_gen_global(ir_builder *self, ir_value *global) +static bool gen_global_function_code(ir_builder *ir, ir_value *global) +{ + prog_section_function *fundef; + ir_function *irfun; + + irfun = global->constval.vfunc; + if (!irfun) { + irwarning(global->context, WARN_IMPLICIT_FUNCTION_POINTER, + "function `%s` has no body and in QC implicitly becomes a function-pointer", global->name); + /* this was a function pointer, don't generate code for those */ + return true; + } + + if (irfun->builtin) + return true; + + if (irfun->code_function_def < 0) { + irerror(irfun->context, "`%s`: IR global wasn't generated, failed to access function-def", irfun->name); + return false; + } + fundef = &code_functions_data[irfun->code_function_def]; + + fundef->entry = code_statements_elements; + if (!gen_function_code(irfun)) { + irerror(irfun->context, "Failed to generate code for function %s", irfun->name); + return false; + } + return true; +} + +static bool ir_builder_gen_global(ir_builder *self, ir_value *global, bool islocal) { size_t i; int32_t *iptr; @@ -2525,10 +2728,44 @@ static bool ir_builder_gen_global(ir_builder *self, ir_value *global) def.type = global->vtype; def.offset = code_globals_elements; - def.name = global->code.name = code_genstring(global->name); + + if (global->name) { + if (global->name[0] == '#') { + if (!self->str_immediate) + self->str_immediate = code_genstring("IMMEDIATE"); + def.name = global->code.name = self->str_immediate; + } + else + def.name = global->code.name = code_genstring(global->name); + } + else + def.name = 0; switch (global->vtype) { + case TYPE_VOID: + if (!strcmp(global->name, "end_sys_globals")) { + /* TODO: remember this point... all the defs before this one + * should be checksummed and added to progdefs.h when we generate it. + */ + } + else if (!strcmp(global->name, "end_sys_fields")) { + /* TODO: same as above but for entity-fields rather than globsl + */ + } + else + irwarning(global->context, WARN_VOID_VARIABLES, "unrecognized variable of type void `%s`", + global->name); + /* I'd argue setting it to 0 is sufficient, but maybe some depend on knowing how far + * the system fields actually go? Though the engine knows this anyway... + * Maybe this could be an -foption + * fteqcc creates data for end_sys_* - of size 1, so let's do the same + */ + ir_value_code_setaddr(global, code_globals_add(0)); + /* Add the def */ + if (code_defs_add(def) < 0) + return false; + return true; case TYPE_POINTER: if (code_defs_add(def) < 0) return false; @@ -2541,35 +2778,37 @@ static bool ir_builder_gen_global(ir_builder *self, ir_value *global) /* fall through */ case TYPE_FLOAT: { - if (code_defs_add(def) < 0) - return false; - if (global->isconst) { - iptr = (int32_t*)&global->constval.vfloat; + iptr = (int32_t*)&global->constval.ivec[0]; ir_value_code_setaddr(global, code_globals_add(*iptr)); - } else + } else { ir_value_code_setaddr(global, code_globals_add(0)); + if (!islocal) + def.type |= DEF_SAVEGLOBAL; + } + if (code_defs_add(def) < 0) + return false; return global->code.globaladdr >= 0; } case TYPE_STRING: { - if (code_defs_add(def) < 0) - return false; if (global->isconst) - ir_value_code_setaddr(global, code_globals_add(code_cachedstring(global->constval.vstring))); - else + ir_value_code_setaddr(global, code_globals_add(code_genstring(global->constval.vstring))); + else { ir_value_code_setaddr(global, code_globals_add(0)); + if (!islocal) + def.type |= DEF_SAVEGLOBAL; + } + if (code_defs_add(def) < 0) + return false; return global->code.globaladdr >= 0; } case TYPE_VECTOR: { size_t d; - if (code_defs_add(def) < 0) - return false; - if (global->isconst) { - iptr = (int32_t*)&global->constval.vvec; + iptr = (int32_t*)&global->constval.ivec[0]; ir_value_code_setaddr(global, code_globals_add(iptr[0])); if (global->code.globaladdr < 0) return false; @@ -2587,15 +2826,30 @@ static bool ir_builder_gen_global(ir_builder *self, ir_value *global) if (code_globals_add(0) < 0) return false; } + if (!islocal) + def.type |= DEF_SAVEGLOBAL; } + + if (code_defs_add(def) < 0) + return false; return global->code.globaladdr >= 0; } case TYPE_FUNCTION: + if (!global->isconst) { + ir_value_code_setaddr(global, code_globals_add(0)); + if (global->code.globaladdr < 0) + return false; + } else { + ir_value_code_setaddr(global, code_globals_elements); + code_globals_add(code_functions_elements); + if (!gen_global_function(self, global)) + return false; + if (!islocal) + def.type |= DEF_SAVEGLOBAL; + } if (code_defs_add(def) < 0) return false; - ir_value_code_setaddr(global, code_globals_elements); - code_globals_add(code_functions_elements); - return gen_global_function(self, global); + return true; case TYPE_VARIANT: /* assume biggest type */ ir_value_code_setaddr(global, code_globals_add(0)); @@ -2604,7 +2858,8 @@ static bool ir_builder_gen_global(ir_builder *self, ir_value *global) return true; default: /* refuse to create 'void' type or any other fancy business. */ - printf("Invalid type for global variable %s\n", global->name); + irerror(global->context, "Invalid type for global variable `%s`: %s", + global->name, type_name[global->vtype]); return false; } } @@ -2627,12 +2882,12 @@ static bool ir_builder_gen_field(ir_builder *self, ir_value *field) * bytes is more than enough for a variable/field name */ if (len+2 >= sizeof(name)) { - printf("invalid field name size: %u\n", (unsigned int)len); + irerror(field->context, "invalid field name size: %u", (unsigned int)len); return false; } name[0] = '.'; - strcpy(name+1, field->name); /* no strncpy - we used strlen above */ + memcpy(name+1, field->name, len); /* no strncpy - we used strlen above */ name[len+1] = 0; def.name = code_genstring(name); @@ -2655,7 +2910,7 @@ static bool ir_builder_gen_field(ir_builder *self, ir_value *field) fld.type = field->fieldtype; if (fld.type == TYPE_VOID) { - printf("field is missing a type: %s - don't know its size\n", field->name); + irerror(field->context, "field is missing a type: %s - don't know its size", field->name); return false; } @@ -2679,10 +2934,18 @@ static bool ir_builder_gen_field(ir_builder *self, ir_value *field) bool ir_builder_generate(ir_builder *self, const char *filename) { + prog_section_statement stmt; size_t i; code_init(); + for (i = 0; i < self->globals_count; ++i) + { + if (!ir_builder_gen_global(self, self->globals[i], false)) { + return false; + } + } + for (i = 0; i < self->fields_count; ++i) { if (!ir_builder_gen_field(self, self->fields[i])) { @@ -2690,13 +2953,27 @@ bool ir_builder_generate(ir_builder *self, const char *filename) } } + /* generate function code */ for (i = 0; i < self->globals_count; ++i) { - if (!ir_builder_gen_global(self, self->globals[i])) { - return false; + if (self->globals[i]->vtype == TYPE_FUNCTION) { + if (!gen_global_function_code(self, self->globals[i])) { + return false; + } } } + /* DP errors if the last instruction is not an INSTR_DONE + * and for debugging purposes we add an additional AINSTR_END + * to the end of functions, so here it goes: + */ + stmt.opcode = INSTR_DONE; + stmt.o1.u1 = 0; + stmt.o2.u1 = 0; + stmt.o3.u1 = 0; + if (code_statements_add(stmt) < 0) + return false; + printf("writing '%s'...\n", filename); return code_write(filename); } @@ -2707,6 +2984,12 @@ bool ir_builder_generate(ir_builder *self, const char *filename) #define IND_BUFSZ 1024 +#ifdef WIN32 +# define strncat(dst, src, sz) strncat_s(dst, sz, src, _TRUNCATE) +#else +# define strncat strncat +#endif + const char *qc_opname(int op) { if (op < 0) return ""; @@ -2760,6 +3043,25 @@ void ir_function_dump(ir_function *f, char *ind, oprintf("\n"); } } + oprintf("%sliferanges:\n", ind); + for (i = 0; i < f->locals_count; ++i) { + size_t l; + ir_value *v = f->locals[i]; + oprintf("%s\t%s: unique ", ind, v->name); + for (l = 0; l < v->life_count; ++l) { + oprintf("[%i,%i] ", v->life[l].start, v->life[l].end); + } + oprintf("\n"); + } + for (i = 0; i < f->values_count; ++i) { + size_t l; + ir_value *v = f->values[i]; + oprintf("%s\t%s: @%i ", ind, v->name, (int)v->code.local); + for (l = 0; l < v->life_count; ++l) { + oprintf("[%i,%i] ", v->life[l].start, v->life[l].end); + } + oprintf("\n"); + } if (f->blocks_count) { oprintf("%slife passes (check): %i\n", ind, (int)f->run_id); @@ -2848,6 +3150,12 @@ void ir_instr_dump(ir_instr *in, char *ind, } if (in->bops[1]) oprintf("%s[%s]", comma, in->bops[1]->label); + if (in->params_count) { + oprintf("\tparams: "); + for (i = 0; i != in->params_count; ++i) { + oprintf("%s, ", in->params[i]->name); + } + } oprintf("\n"); ind[strlen(ind)-1] = 0; } @@ -2861,7 +3169,7 @@ void ir_value_dump(ir_value* v, int (*oprintf)(const char*, ...)) oprintf("(void)"); break; case TYPE_FUNCTION: - oprintf("(function)"); + oprintf("fn:%s", v->name); break; case TYPE_FLOAT: oprintf("%g", v->constval.vfloat); @@ -2893,10 +3201,10 @@ void ir_value_dump(ir_value* v, int (*oprintf)(const char*, ...)) } } -void ir_value_dump_life(ir_value *self, int (*oprintf)(const char*,...)) +void ir_value_dump_life(const ir_value *self, int (*oprintf)(const char*,...)) { size_t i; - oprintf("Life of %s:\n", self->name); + oprintf("Life of %12s:", self->name); for (i = 0; i < self->life_count; ++i) { oprintf(" + [%i, %i]\n", self->life[i].start, self->life[i].end);