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report compile error instead of crashing for void in var args

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See #557
This commit is contained in:
Andrew Kelley 2017-10-21 15:46:04 -04:00
parent 175893913d
commit a1af7cbf00
1 changed files with 5 additions and 1 deletions
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6
src/ir.cpp
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@ -10369,7 +10369,11 @@ static TypeTableEntry *ir_analyze_fn_call(IrAnalyze *ira, IrInstructionCall *cal
arg_tuple_i < arg->value.data.x_arg_tuple.end_index; arg_tuple_i += 1) arg_tuple_i < arg->value.data.x_arg_tuple.end_index; arg_tuple_i += 1)
{ {
VariableTableEntry *arg_var = get_fn_var_by_index(parent_fn_entry, arg_tuple_i); VariableTableEntry *arg_var = get_fn_var_by_index(parent_fn_entry, arg_tuple_i);
assert(arg_var != nullptr); if (arg_var == nullptr) {
ir_add_error(ira, arg,
buf_sprintf("compiler bug: var args can't handle void. https://github.com/zig-lang/zig/issues/557"));
return ira->codegen->builtin_types.entry_invalid;
}
IrInstruction *arg_var_ptr_inst = ir_get_var_ptr(ira, arg, arg_var, true, false); IrInstruction *arg_var_ptr_inst = ir_get_var_ptr(ira, arg, arg_var, true, false);
if (type_is_invalid(arg_var_ptr_inst->value.type)) if (type_is_invalid(arg_var_ptr_inst->value.type))
return ira->codegen->builtin_types.entry_invalid; return ira->codegen->builtin_types.entry_invalid;