1 files changed, 35 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/callconv/amdgpu.rs b/compiler/rustc_target/src/callconv/amdgpu.rs
new file mode 100644
index 00000000000..3007a729a8b
--- /dev/null
+++ b/compiler/rustc_target/src/callconv/amdgpu.rs
@@ -0,0 +1,35 @@
+use crate::abi::call::{ArgAbi, FnAbi};
+use crate::abi::{HasDataLayout, TyAbiInterface};
+
+fn classify_ret<'a, Ty, C>(_cx: &C, ret: &mut ArgAbi<'a, Ty>)
+where
+    Ty: TyAbiInterface<'a, C> + Copy,
+    C: HasDataLayout,
+{
+    ret.extend_integer_width_to(32);
+}
+
+fn classify_arg<'a, Ty, C>(_cx: &C, arg: &mut ArgAbi<'a, Ty>)
+where
+    Ty: TyAbiInterface<'a, C> + Copy,
+    C: HasDataLayout,
+{
+    arg.extend_integer_width_to(32);
+}
+
+pub(crate) fn compute_abi_info<'a, Ty, C>(cx: &C, fn_abi: &mut FnAbi<'a, Ty>)
+where
+    Ty: TyAbiInterface<'a, C> + Copy,
+    C: HasDataLayout,
+{
+    if !fn_abi.ret.is_ignore() {
+        classify_ret(cx, &mut fn_abi.ret);
+    }
+
+    for arg in fn_abi.args.iter_mut() {
+        if arg.is_ignore() {
+            continue;
+        }
+        classify_arg(cx, arg);
+    }
+}