diff --git a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs
index 36ea76cbc51a0..de262994fa458 100644
--- a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs
+++ b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs
@@ -22,13 +22,18 @@ use rustc_codegen_ssa::traits::{
     ArgAbiBuilderMethods, BaseTypeCodegenMethods, BuilderMethods, ConstCodegenMethods,
     IntrinsicCallBuilderMethods, LayoutTypeCodegenMethods,
 };
+use rustc_data_structures::fx::FxHashSet;
 use rustc_middle::bug;
-use rustc_middle::ty::layout::{FnAbiOf, LayoutOf};
+#[cfg(feature = "master")]
+use rustc_middle::ty::layout::FnAbiOf;
+use rustc_middle::ty::layout::LayoutOf;
 use rustc_middle::ty::{self, Instance, Ty};
 use rustc_span::{Span, Symbol, sym};
 use rustc_target::callconv::{ArgAbi, PassMode};
 
-use crate::abi::{FnAbiGccExt, GccType};
+#[cfg(feature = "master")]
+use crate::abi::FnAbiGccExt;
+use crate::abi::GccType;
 use crate::builder::Builder;
 use crate::common::{SignType, TypeReflection};
 use crate::context::CodegenCx;
@@ -620,8 +625,6 @@ impl<'a, 'gcc, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tc
                 *func
             } else {
                 self.linkage.set(FunctionType::Extern);
-                let fn_abi = self.fn_abi_of_instance(instance, ty::List::empty());
-                let fn_ty = fn_abi.gcc_type(self);
 
                 let func = match sym {
                     "llvm.fma.f16" => {
@@ -634,13 +637,7 @@ impl<'a, 'gcc, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tc
 
                 self.intrinsics.borrow_mut().insert(sym.to_string(), func);
 
-                self.on_stack_function_params
-                    .borrow_mut()
-                    .insert(func, fn_ty.on_stack_param_indices);
-                #[cfg(feature = "master")]
-                for fn_attr in fn_ty.fn_attributes {
-                    func.add_attribute(fn_attr);
-                }
+                self.on_stack_function_params.borrow_mut().insert(func, FxHashSet::default());
 
                 crate::attributes::from_fn_attrs(self, func, instance);
 
diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs
index 481f75f337d63..d7a928f492f0e 100644
--- a/compiler/rustc_codegen_llvm/src/intrinsic.rs
+++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs
@@ -646,10 +646,32 @@ impl<'ll, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
     ) -> Self::Value {
         let tcx = self.tcx();
 
-        // FIXME remove usage of fn_abi
-        let fn_abi = self.fn_abi_of_instance(instance, ty::List::empty());
-        assert!(!fn_abi.ret.is_indirect());
-        let fn_ty = fn_abi.llvm_type(self);
+        let fn_ty = instance.ty(tcx, self.typing_env());
+        let fn_sig = match *fn_ty.kind() {
+            ty::FnDef(def_id, args) => {
+                tcx.instantiate_bound_regions_with_erased(tcx.fn_sig(def_id).instantiate(tcx, args))
+            }
+            _ => unreachable!(),
+        };
+        assert!(!fn_sig.c_variadic);
+
+        let ret_layout = self.layout_of(fn_sig.output());
+        let llreturn_ty = if ret_layout.is_zst() {
+            self.type_void()
+        } else {
+            ret_layout.immediate_llvm_type(self)
+        };
+
+        let mut llargument_tys = Vec::with_capacity(fn_sig.inputs().len());
+        for &arg in fn_sig.inputs() {
+            let arg_layout = self.layout_of(arg);
+            if arg_layout.is_zst() {
+                continue;
+            }
+            llargument_tys.push(arg_layout.immediate_llvm_type(self));
+        }
+
+        let fn_ty = self.type_func(&llargument_tys, llreturn_ty);
 
         let fn_ptr = if let Some(&llfn) = self.intrinsic_instances.borrow().get(&instance) {
             llfn
@@ -665,12 +687,11 @@ impl<'ll, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
                 let llfn = declare_raw_fn(
                     self,
                     sym,
-                    fn_abi.llvm_cconv(self),
+                    llvm::CCallConv,
                     llvm::UnnamedAddr::Global,
                     llvm::Visibility::Default,
                     fn_ty,
                 );
-                fn_abi.apply_attrs_llfn(self, llfn, Some(instance));
 
                 llfn
             };