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Add #soa pointer type to aid with refactoring to #soa data types

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a: #soa[16]Foo
p := &a[6]
#assert(type_of(p) == #soa^#soa[16]Foo)
p^.x = 123
p.x = 123
This commit is contained in:
gingerBill
2022-08-08 15:07:00 +01:00
parent 4633591918
commit 5e3cf45df3
24 changed files with 274 additions and 23 deletions
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31
src/llvm_backend_expr.cpp
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@@ -2803,7 +2803,15 @@ lbValue lb_emit_comp_against_nil(lbProcedure *p, TokenKind op_kind, lbValue x) {
return {};
}
lbValue lb_make_soa_pointer(lbProcedure *p, Type *type, lbValue const &addr, lbValue const &index) {
lbAddr v = lb_add_local_generated(p, type, false);
lbValue ptr = lb_emit_struct_ep(p, v.addr, 0);
lbValue idx = lb_emit_struct_ep(p, v.addr, 1);
lb_emit_store(p, ptr, addr);
lb_emit_store(p, idx, index);
return lb_addr_load(p, v);
}
lbValue lb_build_unary_and(lbProcedure *p, Ast *expr) {
ast_node(ue, UnaryExpr, expr);
@@ -2842,7 +2850,17 @@ lbValue lb_build_unary_and(lbProcedure *p, Ast *expr) {
lb_emit_store(p, gep1, ok);
return lb_addr_load(p, res);
} if (ue_expr->kind == Ast_CompoundLit) {
} else if (is_type_soa_pointer(tv.type)) {
ast_node(ie, IndexExpr, ue_expr);
lbValue addr = lb_build_addr_ptr(p, ie->expr);
lbValue index = lb_build_expr(p, ie->index);
if (!build_context.no_bounds_check) {
// TODO(bill): soa bounds checking
}
return lb_make_soa_pointer(p, tv.type, addr, index);
} else if (ue_expr->kind == Ast_CompoundLit) {
lbValue v = lb_build_expr(p, ue->expr);
Type *type = v.type;
@@ -3604,6 +3622,7 @@ lbAddr lb_build_addr_internal(lbProcedure *p, Ast *expr) {
// NOTE(bill): just patch the index in place
sel.index[0] = addr.swizzle.indices[sel.index[0]];
}
lbValue a = lb_addr_get_ptr(p, addr);
a = lb_emit_deep_field_gep(p, a, sel);
return lb_addr(a);
@@ -4093,10 +4112,16 @@ lbAddr lb_build_addr_internal(lbProcedure *p, Ast *expr) {
case_end;
case_ast_node(de, DerefExpr, expr);
if (is_type_relative_pointer(type_of_expr(de->expr))) {
Type *t = type_of_expr(de->expr);
if (is_type_relative_pointer(t)) {
lbAddr addr = lb_build_addr(p, de->expr);
addr.relative.deref = true;
return addr;\
return addr;
} else if (is_type_soa_pointer(t)) {
lbValue value = lb_build_expr(p, de->expr);
lbValue ptr = lb_emit_struct_ev(p, value, 0);
lbValue idx = lb_emit_struct_ev(p, value, 1);
return lb_addr_soa_variable(ptr, idx, nullptr);
}
lbValue addr = lb_build_expr(p, de->expr);
return lb_addr(addr);