Querify fn_abi_of_{fn_ptr,instance}.

Author: eddyb

src/abi/mod.rs

@@ -53,7 +53,11 @@ pub(crate) fn get_function_sig<'tcx>(
     inst: Instance<'tcx>,
 ) -> Signature {
     assert!(!inst.substs.needs_infer());
-    clif_sig_from_fn_abi(tcx, triple, &RevealAllLayoutCx(tcx).fn_abi_of_instance(inst, &[]))
+    clif_sig_from_fn_abi(
+        tcx,
+        triple,
+        &RevealAllLayoutCx(tcx).fn_abi_of_instance(inst, ty::List::empty()),
+    )
 }
 
 /// Instance must be monomorphized
@@ -350,14 +354,13 @@ pub(crate) fn codegen_terminator_call<'tcx>(
     };
 
     let extra_args = &args[fn_sig.inputs().len()..];
-    let extra_args = extra_args
-        .iter()
-        .map(|op_arg| fx.monomorphize(op_arg.ty(fx.mir, fx.tcx)))
-        .collect::<Vec<_>>();
+    let extra_args = fx
+        .tcx
+        .mk_type_list(extra_args.iter().map(|op_arg| fx.monomorphize(op_arg.ty(fx.mir, fx.tcx))));
     let fn_abi = if let Some(instance) = instance {
-        RevealAllLayoutCx(fx.tcx).fn_abi_of_instance(instance, &extra_args)
+        RevealAllLayoutCx(fx.tcx).fn_abi_of_instance(instance, extra_args)
     } else {
-        RevealAllLayoutCx(fx.tcx).fn_abi_of_fn_ptr(fn_ty.fn_sig(fx.tcx), &extra_args)
+        RevealAllLayoutCx(fx.tcx).fn_abi_of_fn_ptr(fn_ty.fn_sig(fx.tcx), extra_args)
     };
 
     let is_cold = instance
@@ -525,7 +528,8 @@ pub(crate) fn codegen_drop<'tcx>(
                     def: ty::InstanceDef::Virtual(drop_instance.def_id(), 0),
                     substs: drop_instance.substs,
                 };
-                let fn_abi = RevealAllLayoutCx(fx.tcx).fn_abi_of_instance(virtual_drop, &[]);
+                let fn_abi =
+                    RevealAllLayoutCx(fx.tcx).fn_abi_of_instance(virtual_drop, ty::List::empty());
 
                 let sig = clif_sig_from_fn_abi(fx.tcx, fx.triple(), &fn_abi);
                 let sig = fx.bcx.import_signature(sig);
@@ -534,7 +538,8 @@ pub(crate) fn codegen_drop<'tcx>(
             _ => {
                 assert!(!matches!(drop_instance.def, InstanceDef::Virtual(_, _)));
 
-                let fn_abi = RevealAllLayoutCx(fx.tcx).fn_abi_of_instance(drop_instance, &[]);
+                let fn_abi =
+                    RevealAllLayoutCx(fx.tcx).fn_abi_of_instance(drop_instance, ty::List::empty());
 
                 let arg_value = drop_place.place_ref(
                     fx,

src/base.rs

@@ -61,7 +61,7 @@ pub(crate) fn codegen_fn<'tcx>(
         instance,
         symbol_name,
         mir,
-        fn_abi: Some(RevealAllLayoutCx(tcx).fn_abi_of_instance(instance, &[])),
+        fn_abi: Some(RevealAllLayoutCx(tcx).fn_abi_of_instance(instance, ty::List::empty())),
 
         bcx,
         block_map,

src/common.rs

@@ -276,7 +276,7 @@ impl<'tcx> FnAbiOfHelpers<'tcx> for FunctionCx<'_, '_, 'tcx> {
         &self,
         err: FnAbiError<'tcx>,
         span: Span,
-        fn_abi_request: FnAbiRequest<'_, 'tcx>,
+        fn_abi_request: FnAbiRequest<'tcx>,
     ) -> ! {
         RevealAllLayoutCx(self.tcx).handle_fn_abi_err(err, span, fn_abi_request)
     }
@@ -402,7 +402,7 @@ impl<'tcx> FnAbiOfHelpers<'tcx> for RevealAllLayoutCx<'tcx> {
         &self,
         err: FnAbiError<'tcx>,
         span: Span,
-        fn_abi_request: FnAbiRequest<'_, 'tcx>,
+        fn_abi_request: FnAbiRequest<'tcx>,
     ) -> ! {
         if let FnAbiError::Layout(LayoutError::SizeOverflow(_)) = err {
             self.0.sess.span_fatal(span, &err.to_string())

src/pretty_clif.rs

@@ -80,7 +80,10 @@ impl CommentWriter {
             vec![
                 format!("symbol {}", tcx.symbol_name(instance).name),
                 format!("instance {:?}", instance),
-                format!("abi {:?}", RevealAllLayoutCx(tcx).fn_abi_of_instance(instance, &[])),
+                format!(
+                    "abi {:?}",
+                    RevealAllLayoutCx(tcx).fn_abi_of_instance(instance, ty::List::empty())
+                ),
                 String::new(),
             ]
         } else {