reading from a bit field partially works

See #261

Still need to do:
 * reading a field that has bit offset 0 but still needs to
   shift and truncate
 * writing a field

1 files changed, 2 insertions, 1 deletions

diff --git a/src/ir.cpp b/src/ir.cpp
index 03b77a69f7..ddb2164ad5 100644
--- a/src/ir.cpp
+++ b/src/ir.cpp
@@ -9067,7 +9067,8 @@ static TypeTableEntry *ir_analyze_container_field_ptr(IrAnalyze *ira, Buf *field
                 }
             }
             ir_build_struct_field_ptr_from(&ira->new_irb, &field_ptr_instruction->base, container_ptr, field);
-            return get_pointer_to_type_extra(ira->codegen, field->type_entry, is_const, 0, is_volatile);
+            return get_pointer_to_type_extra(ira->codegen, field->type_entry, is_const,
+                    field->packed_bits_offset, is_volatile);
         } else {
             return ir_analyze_container_member_access_inner(ira, bare_type, field_name,
                 field_ptr_instruction, container_ptr, container_type);