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Listen to past Bill's wisdom

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This commit is contained in:
gingerBill
2022-11-23 23:54:12 +00:00
parent ae81117f70
commit aef8b25a8e
1 changed files with 10 additions and 24 deletions
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src/llvm_backend_proc.cpp
+10 -24
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@@ -588,30 +588,16 @@ void lb_begin_procedure_body(lbProcedure *p) {
if (e->token.string != "") {
GB_ASSERT(!is_blank_ident(e->token));
lbAddr res = {};
lbFunctionType *ft = p->abi_function_type;
if (ft->multiple_return_original_type &&
i < results->variables.count-1) {
isize ret_offset = param_offset + ft->original_arg_count + i;
lbValue ptr = {};
ptr.value = LLVMGetParam(p->value, cast(unsigned)ret_offset);
ptr.type = alloc_type_pointer(e->type);
res = lb_addr(ptr);
lb_add_entity(p->module, e, ptr);
lb_add_debug_local_variable(p, ptr.value, e->type, e->token);
} else {
// NOTE(bill): Don't even bother trying to optimize this with the return ptr value
// This will violate the defer rules if you do:
// foo :: proc() -> (x, y: T) {
// defer x = ... // defer is executed after the `defer`
// return // the values returned should be zeroed
// }
// NOTE(bill): REALLY, don't even bother.
res = lb_add_local(p, e->type, e);
}
// NOTE(bill): Don't even bother trying to optimize this with the return ptr value
// This will violate the defer rules if you do:
// foo :: proc() -> (x, y: T) {
// defer x = ... // defer is executed after the `defer`
// return // the values returned should be zeroed
// }
// NOTE(bill): REALLY, don't even bother.
//
// IMPORTANT NOTE(bill): REALLY, don't even bother!!!!!!
lbAddr res = lb_add_local(p, e->type, e);
if (e->Variable.param_value.kind != ParameterValue_Invalid) {
lbValue c = lb_handle_param_value(p, e->type, e->Variable.param_value, e->token.pos);