diff --git a/src/check_expr.cpp b/src/check_expr.cpp index 0830f65bd..d2d01deda 100644 --- a/src/check_expr.cpp +++ b/src/check_expr.cpp @@ -8866,6 +8866,10 @@ gb_internal void check_compound_literal_field_values(CheckerContext *c, SliceArray.elem; break; + case Type_BitField: + is_constant = false; + ft = bt->BitField.fields[index]->type; + break; default: GB_PANIC("invalid type: %s", type_to_string(ft)); break; @@ -8892,6 +8896,9 @@ gb_internal void check_compound_literal_field_values(CheckerContext *c, SliceArray.elem; break; + case Type_BitField: + nested_ft = bt->BitField.fields[index]->type; + break; default: GB_PANIC("invalid type %s", type_to_string(nested_ft)); break; diff --git a/src/llvm_backend_expr.cpp b/src/llvm_backend_expr.cpp index c12489598..7772ba930 100644 --- a/src/llvm_backend_expr.cpp +++ b/src/llvm_backend_expr.cpp @@ -4533,10 +4533,26 @@ gb_internal lbAddr lb_build_addr_compound_lit(lbProcedure *p, Ast *expr) { if (lb_is_nested_possibly_constant(type, sel, elem)) { continue; } - lbValue dst = lb_emit_deep_field_gep(p, comp_lit_ptr, sel); field_expr = lb_build_expr(p, elem); field_expr = lb_emit_conv(p, field_expr, sel.entity->type); - lb_emit_store(p, dst, field_expr); + if (sel.is_bit_field) { + Selection sub_sel = trim_selection(sel); + lbValue trimmed_dst = lb_emit_deep_field_gep(p, comp_lit_ptr, sub_sel); + Type *bf = base_type(type_deref(trimmed_dst.type)); + if (is_type_pointer(bf)) { + trimmed_dst = lb_emit_load(p, trimmed_dst); + bf = base_type(type_deref(trimmed_dst.type)); + } + GB_ASSERT(bf->kind == Type_BitField); + + isize idx = sel.index[sel.index.count-1]; + lbAddr dst = lb_addr_bit_field(trimmed_dst, bf->BitField.fields[idx]->type, bf->BitField.bit_offsets[idx], bf->BitField.bit_sizes[idx]); + lb_addr_store(p, dst, field_expr); + + } else { + lbValue dst = lb_emit_deep_field_gep(p, comp_lit_ptr, sel); + lb_emit_store(p, dst, field_expr); + } continue; } diff --git a/src/types.cpp b/src/types.cpp index e568d2af2..618e5bd8a 100644 --- a/src/types.cpp +++ b/src/types.cpp @@ -457,6 +457,15 @@ gb_internal Selection sub_selection(Selection const &sel, isize offset) { return res; } +gb_internal Selection trim_selection(Selection const &sel) { + Selection res = {}; + res.index.data = sel.index.data; + res.index.count = gb_max(sel.index.count - 1, 0); + res.index.capacity = res.index.count; + return res; +} + + gb_global Type basic_types[] = { {Type_Basic, {Basic_Invalid, 0, 0, STR_LIT("invalid type")}},