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Add hidden __tag for union variables.

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Ginger Bill
2017-05-04 20:34:50 +01:00
parent 3b25f924cb
commit 789b297f32
10 changed files with 205 additions and 134 deletions
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src/ir.c
+18 -5
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@@ -2244,8 +2244,13 @@ irValue *ir_emit_struct_ep(irProcedure *proc, irValue *s, i32 index) {
} else if (is_type_union(t)) {
type_set_offsets(a, t);
GB_ASSERT(t->Record.field_count > 0);
GB_ASSERT(gb_is_between(index, 0, t->Record.field_count-1));
result_type = make_type_pointer(a, t->Record.fields[index]->type);
if (index == -1) {
index = t->Record.field_count+1;
result_type = t_int_ptr;
} else {
GB_ASSERT(gb_is_between(index, 0, t->Record.field_count-1));
result_type = make_type_pointer(a, t->Record.fields[index]->type);
}
} else if (is_type_tuple(t)) {
GB_ASSERT(t->Tuple.variable_count > 0);
GB_ASSERT(gb_is_between(index, 0, t->Tuple.variable_count-1));
@@ -2316,8 +2321,12 @@ irValue *ir_emit_struct_ev(irProcedure *proc, irValue *s, i32 index) {
result_type = t->Record.fields[index]->type;
} else if (is_type_union(t)) {
type_set_offsets(a, t);
GB_ASSERT(t->Record.field_count > 0);
GB_ASSERT(gb_is_between(index, 0, t->Record.field_count-1));
if (index == -1) {
index = t->Record.field_count+1;
result_type = t_int_ptr;
} else {
GB_ASSERT(gb_is_between(index, 0, t->Record.field_count-1));
}
result_type = t->Record.fields[index]->type;
} else if (is_type_tuple(t)) {
GB_ASSERT(t->Tuple.variable_count > 0);
@@ -2394,7 +2403,11 @@ irValue *ir_emit_deep_field_gep(irProcedure *proc, irValue *e, Selection sel) {
type = type->Record.fields[index]->type;
e = ir_emit_conv(proc, e, make_type_pointer(proc->module->allocator, type));
} else if (type->kind == Type_Record) {
type = type->Record.fields[index]->type;
if (index == -1) {
type = t_int;
} else {
type = type->Record.fields[index]->type;
}
e = ir_emit_struct_ep(proc, e, index);
} else if (type->kind == Type_Tuple) {
type = type->Tuple.variables[index]->type;