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-rw-r--r--src/codegen/ssa.cpp110
1 files changed, 64 insertions, 46 deletions
diff --git a/src/codegen/ssa.cpp b/src/codegen/ssa.cpp
index e7d4aaf4b..5bff4a344 100644
--- a/src/codegen/ssa.cpp
+++ b/src/codegen/ssa.cpp
@@ -85,7 +85,6 @@ struct ssaProcedure {
SSA_INSTR_KIND(Unreachable), \
SSA_INSTR_KIND(BinaryOp), \
SSA_INSTR_KIND(Call), \
- SSA_INSTR_KIND(MemCopy), \
SSA_INSTR_KIND(NoOp), \
SSA_INSTR_KIND(ExtractElement), \
SSA_INSTR_KIND(InsertElement), \
@@ -199,13 +198,6 @@ struct ssaInstr {
isize arg_count;
} Call;
struct {
- ssaValue *dst, *src;
- ssaValue *len;
- i32 align;
- b32 is_volatile;
- } CopyMemory;
-
- struct {
ssaValue *vector;
ssaValue *index;
} ExtractElement;
@@ -315,6 +307,25 @@ void ssa_module_init(ssaModule *m, Checker *c) {
map_init(&m->values, gb_heap_allocator());
map_init(&m->members, gb_heap_allocator());
+
+ {
+ // Add type info data
+ ssaValue *ssa_make_value_global(gbAllocator a, Entity *e, ssaValue *value);
+
+
+ String name = make_string("__type_info_data");
+ Token token = {};
+ token.kind = Token_Identifier;
+ token.string = name;
+
+
+ isize count = gb_array_count(c->info.type_info_types.entries);
+ Entity *e = make_entity_variable(m->allocator, NULL, token, make_type_array(m->allocator, t_type_info, count));
+ ssaValue *g = ssa_make_value_global(m->allocator, e, NULL);
+ g->Global.is_private = true;
+ map_set(&m->values, hash_pointer(e), g);
+ map_set(&m->members, hash_string(name), g);
+ }
}
void ssa_module_destroy(ssaModule *m) {
@@ -356,9 +367,6 @@ Type *ssa_type(ssaInstr *instr) {
}
return NULL;
} break;
- case ssaInstr_MemCopy:
- return t_int;
-
case ssaInstr_ExtractElement: {
Type *vt = ssa_type(instr->ExtractElement.vector);
Type *bt = base_vector_type(get_base_type(vt));
@@ -545,16 +553,6 @@ ssaValue *ssa_make_instr_call(ssaProcedure *p, ssaValue *value, ssaValue **args,
return v;
}
-ssaValue *ssa_make_instr_copy_memory(ssaProcedure *p, ssaValue *dst, ssaValue *src, ssaValue *len, i32 align, b32 is_volatile) {
- ssaValue *v = ssa_alloc_instr(p, ssaInstr_MemCopy);
- v->Instr.CopyMemory.dst = dst;
- v->Instr.CopyMemory.src = src;
- v->Instr.CopyMemory.len = len;
- v->Instr.CopyMemory.align = align;
- v->Instr.CopyMemory.is_volatile = is_volatile;
- return v;
-}
-
ssaValue *ssa_make_instr_conv(ssaProcedure *p, ssaConvKind kind, ssaValue *value, Type *from, Type *to) {
ssaValue *v = ssa_alloc_instr(p, ssaInstr_Conv);
v->Instr.Conv.kind = kind;
@@ -925,7 +923,6 @@ void ssa_end_procedure_body(ssaProcedure *proc) {
case ssaInstr_Br:
case ssaInstr_Ret:
case ssaInstr_Unreachable:
- case ssaInstr_MemCopy:
case ssaInstr_StartupRuntime:
continue;
case ssaInstr_Call:
@@ -2008,11 +2005,13 @@ ssaValue *ssa_build_single_expr(ssaProcedure *proc, AstNode *expr, TypeAndValue
make_exact_value_integer(size_of_elem));
ssaValue *byte_count = ssa_emit_arith(proc, mul, len, elem_size, t_int);
+ ssaValue **args = gb_alloc_array(proc->module->allocator, ssaValue *, 3);
+ args[0] = dst;
+ args[1] = src;
+ args[2] = byte_count;
- i32 align = cast(i32)type_align_of(proc->module->sizes, proc->module->allocator, elem_type);
- b32 is_volatile = false;
+ ssa_emit_global_call(proc, "memory_move", args, 3);
- ssa_emit(proc, ssa_make_instr_copy_memory(proc, dst, src, byte_count, align, is_volatile));
return len;
} break;
case BuiltinProc_append: {
@@ -2056,7 +2055,12 @@ ssaValue *ssa_build_single_expr(ssaProcedure *proc, AstNode *expr, TypeAndValue
item = ssa_emit_ptr_offset(proc, item, v_zero);
item = ssa_emit_conv(proc, item, t_rawptr, true);
- ssa_emit(proc, ssa_make_instr_copy_memory(proc, offset, item, byte_count, 1, false));
+ ssaValue **args = gb_alloc_array(proc->module->allocator, ssaValue *, 3);
+ args[0] = offset;
+ args[1] = item;
+ args[2] = byte_count;
+
+ ssa_emit_global_call(proc, "memory_move", args, 3);
// Increment slice length
Token add = {Token_Add};
@@ -2172,6 +2176,22 @@ ssaValue *ssa_build_single_expr(ssaProcedure *proc, AstNode *expr, TypeAndValue
ssaValue *cond = ssa_emit_comp(proc, lt, x, v_zero);
return ssa_emit_select(proc, cond, neg_x, x);
} break;
+
+
+ case BuiltinProc_type_info: {
+ ssaValue **found = map_get(&proc->module->members, hash_string(make_string("__type_info_data")));
+ GB_ASSERT(found != NULL);
+ ssaValue *type_info_data = *found;
+ ssaValue *x = ssa_build_expr(proc, ce->arg_list);
+ Type *t = default_type(type_of_expr(proc->module->info, ce->arg_list));
+ MapFindResult fr = map__find(&proc->module->info->type_info_types, hash_pointer(t));
+ GB_ASSERT(fr.entry_index >= 0);
+ // Zero is null and void
+ isize offset = fr.entry_index;
+
+ ssaValue *gep = ssa_emit_struct_gep(proc, type_info_data, offset, t_type_info_ptr);
+ return gep;
+ } break;
}
}
}
@@ -3153,11 +3173,16 @@ void ssa_build_stmt(ssaProcedure *proc, AstNode *node) {
Type *union_type = type_deref(ssa_type(parent));
GB_ASSERT(is_type_union(union_type));
+ ssa_emit_comment(proc, make_string("get union's tag"));
ssaValue *tag_index = ssa_emit_struct_gep(proc, parent, v_one32, make_type_pointer(allocator, t_int));
tag_index = ssa_emit_load(proc, tag_index);
ssaValue *data = ssa_emit_conv(proc, parent, t_rawptr);
+ ssaBlock *start_block = ssa_add_block(proc, node, make_string("type-match.case.first"));
+ ssa_emit_jump(proc, start_block);
+ proc->curr_block = start_block;
+
ssaBlock *done = ssa__make_block(proc, node, make_string("type-match.done")); // NOTE(bill): Append later
ast_node(body, BlockStmt, ms->body);
@@ -3173,30 +3198,22 @@ void ssa_build_stmt(ssaProcedure *proc, AstNode *node) {
for (AstNode *clause = body->list;
clause != NULL;
clause = clause->next, i++) {
- ssaBlock *body = NULL;
- b32 append_body = false;
-
ast_node(cc, CaseClause, clause);
- if (body == NULL) {
- append_body = true;
- if (cc->list == NULL) {
- body = ssa__make_block(proc, clause, make_string("type-match.dflt.body"));
- } else {
- body = ssa__make_block(proc, clause, make_string("type-match.case.body"));
- }
- }
-
-
if (cc->list == NULL) {
// default case
default_stmts = cc->stmts;
- default_block = body;
+ default_block = ssa__make_block(proc, clause, make_string("type-match.dflt.body"));
continue;
}
+
+ ssaBlock *body = ssa__make_block(proc, clause, make_string("type-match.case.body"));
+
+
Scope *scope = *map_get(&proc->module->info->scopes, hash_pointer(clause));
Entity *tag_var_entity = current_scope_lookup_entity(scope, tag_var_name);
+ GB_ASSERT(tag_var_entity != NULL);
ssaValue *tag_var = ssa_add_local(proc, tag_var_entity);
ssaValue *data_ptr = ssa_emit_conv(proc, data, tag_var_entity->type);
ssa_emit_store(proc, tag_var, data_ptr);
@@ -3205,10 +3222,13 @@ void ssa_build_stmt(ssaProcedure *proc, AstNode *node) {
Type *base_type = type_deref(tag_var_entity->type);
ssaValue *index = NULL;
- for (isize i = 0; i < get_base_type(union_type)->Record.field_count; i++) {
- Entity *f = get_base_type(union_type)->Record.fields[i];
+ Type *ut = get_base_type(union_type);
+ GB_ASSERT(ut->Record.kind == TypeRecord_Union);
+ for (isize field_index = 1; field_index < ut->Record.field_count; field_index++) {
+ Entity *f = get_base_type(union_type)->Record.fields[field_index];
if (are_types_identical(f->type, base_type)) {
- index = ssa_make_value_constant(allocator, t_int, make_exact_value_integer(i));
+ index = ssa_make_value_constant(allocator, t_int, make_exact_value_integer(field_index));
+ break;
}
}
GB_ASSERT(index != NULL);
@@ -3220,9 +3240,7 @@ void ssa_build_stmt(ssaProcedure *proc, AstNode *node) {
gb_array_append(proc->blocks, next_cond);
proc->curr_block = next_cond;
- if (append_body) {
- gb_array_append(proc->blocks, body);
- }
+ gb_array_append(proc->blocks, body);
proc->curr_block = body;
ssa_push_target_list(proc, done, NULL, NULL);
ssa_build_stmt_list(proc, cc->stmts);
generated by cgit v1.2.3 (git 2.39.1) at 2026-02-15 21:30:06 +0000