diff options
| author | gingerBill <ginger.bill.22@gmail.com> | 2016-08-05 15:17:23 +0100 |
|---|---|---|
| committer | gingerBill <ginger.bill.22@gmail.com> | 2016-08-05 15:17:23 +0100 |
| commit | 4a303b5c3ef38bd99c36fa990c922917c0134d52 (patch) | |
| tree | fc46614cd8b13cbb84228911209fd505d46370b6 /src/codegen/codegen.cpp | |
| parent | 2aaef48c5c362bb3e04d0c9cd1e722e21b3755e5 (diff) | |
Minor refactor and basic library
Diffstat (limited to 'src/codegen/codegen.cpp')
| -rw-r--r-- | src/codegen/codegen.cpp | 246 |
1 files changed, 3 insertions, 243 deletions
diff --git a/src/codegen/codegen.cpp b/src/codegen/codegen.cpp index 412daae3d..eb05eacc1 100644 --- a/src/codegen/codegen.cpp +++ b/src/codegen/codegen.cpp @@ -20,7 +20,9 @@ b32 ssa_gen_init(ssaGen *s, Checker *c) { ssa_module_init(&s->module, c); - gbFileError err = gb_file_create(&s->output_file, "../examples/test.ll"); + // TODO(bill): generate appropriate output name + isize pos = string_extension_position(c->parser->init_fullpath); + gbFileError err = gb_file_create(&s->output_file, gb_bprintf("%.*s.ll", pos, c->parser->init_fullpath.text)); if (err != gbFileError_None) return false; @@ -83,245 +85,3 @@ void ssa_gen_code(ssaGen *s) { } - - - -#if 0 -#include "type.cpp" -#include "ir.cpp" - -struct Codegen { - Checker *checker; - gbFile file; - gbAllocator allocator; - - irModule module; - - ErrorCollector error_collector; -}; - -b32 init_codegen(Codegen *c, Checker *checker) { - c->checker = checker; - - if (c->error_collector.count != 0) - return false; - for (isize i = 0; i < gb_array_count(checker->parser->files); i++) { - AstFile *f = &checker->parser->files[i]; - if (f->error_collector.count != 0) - return false; - if (f->tokenizer.error_count != 0) - return false; - } - - c->allocator = gb_heap_allocator(); - - ir_module_init(&c->module, c->checker); - - return true; -} - -void destroy_codegen(Codegen *c) { - ir_module_destroy(&c->module); -} - -b32 is_blank_identifier(AstNode *identifier) { - if (identifier->kind == AstNode_Identifier) { - return are_strings_equal(identifier->identifier.token.string, make_string("_")); - } - return false; -} - - -irValue *ir_add_basic_block(gbAllocator a, irValue *p, String label) { - irValue *b = ir_make_value_basic_block(a, gb_array_count(p->procedure.blocks), label, p); - gb_array_append(p->procedure.blocks, b); - return b; -} - -irValue *ir_emit_from_block(irValue *b, irInstruction *i) { - GB_ASSERT(b->kind == irValue_BasicBlock); - i->block = b; - gb_array_append(b->basic_block.instructions, i); - return ir_make_value_instruction(gb_heap_allocator(), i); -} - - -irValue *ir_emit(irValue *p, irInstruction *i) { - GB_ASSERT(p->kind == irValue_Procedure); - return ir_emit_from_block(p->procedure.curr_block, i); -} - - -irInstruction *ir_add_local(irValue *p, Type *type, TokenPos pos) { - irInstruction *i = ir_alloc_instruction(gb_heap_allocator(), irInstruction_Alloca); - i->reg.type = type; - i->reg.pos = pos; - gb_array_append(p->procedure.locals, ir_emit(p, i)); - return i; -} - -irInstruction *ir_add_named_local(irValue *p, Entity *e) { - irInstruction *i = ir_add_local(p, e->type, e->token.pos); - i->alloca.label = e->token.string; - // map_set(&p->procedure.variables, hash_pointer(e), ); - return i; -} - -irInstruction *ir_add_local_for_identifier(irValue *p, AstNode *i) { - GB_ASSERT(p->kind == irValue_Procedure); - GB_ASSERT(i->kind == AstNode_Identifier); - auto *found = map_get(&p->procedure.module->checker->definitions, hash_pointer(i)); - return ir_add_named_local(p, *found); -} - - -void ir_build_variable_declaration(irValue *p, AstNode *d) { - GB_ASSERT(p->kind == irValue_Procedure); - auto *vd = &d->variable_declaration; - - if (vd->name_count == vd->value_count) { - AstNode *name = vd->name_list; - AstNode *value = vd->value_list; - for (; - name != NULL && value != NULL; - name = name->next, value = value->next) { - if (!is_blank_identifier(name)) { - ir_add_local_for_identifier(p, name); - } - // auto lvalue = build_address(p, name, false); - // build_assignment(p, lvalue, value, true, NULL); - } - } else if (vd->value_count == 0) { - AstNode *name = vd->name_list; - for (; - name != NULL; - name = name->next) { - if (!is_blank_identifier(name)) { - - } - - // build_assignment(p, ) - } - } else { - // TODO(bill): Tuple - } - -} - - -void ir_build_expression(irValue *p, AstNode *e) { - GB_ASSERT(p->kind == irValue_Procedure); - -} - - -void ir_build_statement(irValue *p, AstNode *s); - -void ir_build_statement_list(irValue *p, AstNode *list) { - GB_ASSERT(p->kind == irValue_Procedure); - for (AstNode *item = list; item != NULL; item = item->next) { - ir_build_statement(p, item); - } -} - -void ir_build_statement(irValue *p, AstNode *s) { - GB_ASSERT(p->kind == irValue_Procedure); - - switch (s->kind) { - case AstNode_EmptyStatement: - break; - - case AstNode_VariableDeclaration: { - auto *vd = &s->variable_declaration; - if (vd->kind == Declaration_Mutable) { - ir_build_variable_declaration(p, s); - } - } break; - - - case AstNode_ExpressionStatement: - ir_build_expression(p, s->expression_statement.expression); - break; - - case AstNode_BlockStatement: - ir_build_statement_list(p, s->block_statement.list); - break; - } - -} - - - - - -void ir_begin_procedure_body(irValue *p) { - gbAllocator a = gb_heap_allocator(); - p->procedure.curr_block = ir_add_basic_block(a, p, make_string("entry")); - map_init(&p->procedure.variables, a); -} - -void ir_end_procedure_body(irValue *p) { - p->procedure.curr_block = NULL; - map_destroy(&p->procedure.variables); -} - - -void ir_build_procedure(irModule *m, irValue *p) { - if (p->procedure.blocks != NULL) - return; - AstNode *proc_type = NULL; - AstNode *body = NULL; - switch (p->procedure.node->kind) { - case AstNode_ProcedureDeclaration: - proc_type = p->procedure.node->procedure_declaration.procedure_type; - body = p->procedure.node->procedure_declaration.body; - break; - case AstNode_ProcedureLiteral: - proc_type = p->procedure.node->procedure_literal.type; - body = p->procedure.node->procedure_literal.body; - break; - default: - return; - } - - if (body == NULL) { - // NOTE(bill): External procedure - return; - } - - defer (gb_printf("build procedure %.*s\n", LIT(p->procedure.token.string))); - - - ir_begin_procedure_body(p); - ir_build_statement(p, body); - ir_end_procedure_body(p); -} - -void ir_build_proc_decl(irModule *m, AstNode *decl) { - GB_ASSERT(decl != NULL); - auto *pd = &decl->procedure_declaration; - if (is_blank_identifier(pd->name)) - return; - - Entity *e = entity_of_identifier(m->checker, pd->name); - irValue *p = *map_get(&m->values, hash_pointer(e)); - ir_build_procedure(m, p); -} - - - -void generate_code(Codegen *c) { - gbAllocator a = gb_heap_allocator(); - - ir_module_create(&c->module); - - for (isize i = 0; i < gb_array_count(c->module.values.entries); i++) { - irValue *v = c->module.values.entries[i].value; - switch (v->kind) { - case irValue_Procedure: - ir_build_proc_decl(&c->module, v->procedure.node); - break; - } - } -} -#endif |