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Compiler error when taking @offsetOf of void struct member

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closes #739
This commit is contained in:
Andrea Orru 2018-03-13 21:20:06 -07:00
parent 2a6ad23b52
commit 7ac44037db
1 changed files with 6 additions and 0 deletions
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6
src/ir.cpp
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@ -15222,6 +15222,12 @@ static TypeTableEntry *ir_analyze_instruction_offset_of(IrAnalyze *ira,
return ira->codegen->builtin_types.entry_invalid;
}
if (field->type_entry->zero_bits) {
ir_add_error(ira, field_name_value,
buf_sprintf("zero-bit field '%s' in struct '%s' has no offset",
buf_ptr(field_name), buf_ptr(&container_type->name)));
return ira->codegen->builtin_types.entry_invalid;
}
size_t byte_offset = LLVMOffsetOfElement(ira->codegen->target_data_ref, container_type->type_ref, field->gen_index);
ConstExprValue *out_val = ir_build_const_from(ira, &instruction->base);
bigint_init_unsigned(&out_val->data.x_bigint, byte_offset);