Auto merge of #1091 - jrmuizel:linkage, r=emilio

Store function linkage in the ir

This lets us capture 'static inline' functions in the ir and filter them
later down the pipeline. This is the first step on the way to handling
these functions better.

1 files changed, 8 insertions, 1 deletions

diff --git a/src/codegen/mod.rs b/src/codegen/mod.rs
index 6396e953..4fe2bdf7 100644
--- a/src/codegen/mod.rs
+++ b/src/codegen/mod.rs
@@ -20,7 +20,7 @@ use ir::derive::{CanDeriveCopy, CanDeriveDebug, CanDeriveDefault,
                  CanDerivePartialEq, CanDeriveEq, CannotDeriveReason};
 use ir::dot;
 use ir::enum_ty::{Enum, EnumVariant, EnumVariantValue};
-use ir::function::{Abi, Function, FunctionSig};
+use ir::function::{Abi, Function, FunctionSig, Linkage};
 use ir::int::IntKind;
 use ir::item::{IsOpaque, Item, ItemCanonicalName, ItemCanonicalPath};
 use ir::item_kind::ItemKind;
@@ -3127,6 +3127,13 @@ impl CodeGenerator for Function {
         debug!("<Function as CodeGenerator>::codegen: item = {:?}", item);
         debug_assert!(item.is_enabled_for_codegen(ctx));
 
+        // We can't currently do anything with Internal functions so just
+        // avoid generating anything for them.
+        match self.linkage() {
+            Linkage::Internal => return,
+            Linkage::External => {}
+        }
+
         // Similar to static member variables in a class template, we can't
         // generate bindings to template functions, because the set of
         // instantiations is open ended and we have no way of knowing which