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Predefine all local functions before codegen

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Otherwise only calls to previously codegened functions use relative
addressing instead of the GOT

Fixes #692
This commit is contained in:
bjorn3 2019-10-04 14:39:14 +02:00
parent 39796d162e
commit 721fe3b43c
1 changed files with 12 additions and 0 deletions
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12
src/driver.rs
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@ -307,7 +307,19 @@ fn codegen_mono_items<'tcx>(
mono_items: FxHashMap<MonoItem<'tcx>, (RLinkage, Visibility)>,
) {
let mut cx = CodegenCx::new(tcx, module, debug_context);
time("codegen mono items", move || {
for (&mono_item, &(linkage, visibility)) in &mono_items {
match mono_item {
MonoItem::Fn(instance) => {
let (name, sig) = get_function_name_and_sig(tcx, instance, false);
let linkage = crate::linkage::get_clif_linkage(mono_item, linkage, visibility);
cx.module.declare_function(&name, linkage, &sig).unwrap();
}
MonoItem::Static(_) | MonoItem::GlobalAsm(_) => {}
}
}
for (mono_item, (linkage, visibility)) in mono_items {
crate::unimpl::try_unimpl(tcx, log, || {
let linkage = crate::linkage::get_clif_linkage(mono_item, linkage, visibility);