Prepare call/invoke for opaque pointers

Rather than relying on `getPointerElementType()` from LLVM function
pointers, we now pass the function type explicitly when building `call`
or `invoke` instructions.

2 files changed, 3 insertions, 0 deletions

diff --git a/compiler/rustc_codegen_ssa/src/traits/builder.rs b/compiler/rustc_codegen_ssa/src/traits/builder.rs
index f2c52314853..afb8ee3c40d 100644
--- a/compiler/rustc_codegen_ssa/src/traits/builder.rs
+++ b/compiler/rustc_codegen_ssa/src/traits/builder.rs
@@ -72,6 +72,7 @@ pub trait BuilderMethods<'a, 'tcx>:
     );
     fn invoke(
         &mut self,
+        llty: Self::Type,
         llfn: Self::Value,
         args: &[Self::Value],
         then: Self::BasicBlock,
@@ -303,6 +304,7 @@ pub trait BuilderMethods<'a, 'tcx>:
 
     fn call(
         &mut self,
+        llty: Self::Type,
         llfn: Self::Value,
         args: &[Self::Value],
         funclet: Option<&Self::Funclet>,
diff --git a/compiler/rustc_codegen_ssa/src/traits/type_.rs b/compiler/rustc_codegen_ssa/src/traits/type_.rs
index 634a20bda9b..b94fb1e10db 100644
--- a/compiler/rustc_codegen_ssa/src/traits/type_.rs
+++ b/compiler/rustc_codegen_ssa/src/traits/type_.rs
@@ -102,6 +102,7 @@ impl<T> DerivedTypeMethods<'tcx> for T where Self: BaseTypeMethods<'tcx> + MiscM
 pub trait LayoutTypeMethods<'tcx>: Backend<'tcx> {
     fn backend_type(&self, layout: TyAndLayout<'tcx>) -> Self::Type;
     fn cast_backend_type(&self, ty: &CastTarget) -> Self::Type;
+    fn fn_decl_backend_type(&self, fn_abi: &FnAbi<'tcx, Ty<'tcx>>) -> Self::Type;
     fn fn_ptr_backend_type(&self, fn_abi: &FnAbi<'tcx, Ty<'tcx>>) -> Self::Type;
     fn reg_backend_type(&self, ty: &Reg) -> Self::Type;
     fn immediate_backend_type(&self, layout: TyAndLayout<'tcx>) -> Self::Type;