1 files changed, 38 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/callconv/powerpc.rs b/compiler/rustc_target/src/callconv/powerpc.rs
new file mode 100644
index 00000000000..f3b05c48173
--- /dev/null
+++ b/compiler/rustc_target/src/callconv/powerpc.rs
@@ -0,0 +1,38 @@
+use crate::abi::call::{ArgAbi, FnAbi};
+use crate::spec::HasTargetSpec;
+
+fn classify_ret<Ty>(ret: &mut ArgAbi<'_, Ty>) {
+    if ret.layout.is_aggregate() {
+        ret.make_indirect();
+    } else {
+        ret.extend_integer_width_to(32);
+    }
+}
+
+fn classify_arg<Ty>(cx: &impl HasTargetSpec, arg: &mut ArgAbi<'_, Ty>) {
+    if arg.is_ignore() {
+        // powerpc-unknown-linux-{gnu,musl,uclibc} doesn't ignore ZSTs.
+        if cx.target_spec().os == "linux"
+            && matches!(&*cx.target_spec().env, "gnu" | "musl" | "uclibc")
+            && arg.layout.is_zst()
+        {
+            arg.make_indirect_from_ignore();
+        }
+        return;
+    }
+    if arg.layout.is_aggregate() {
+        arg.make_indirect();
+    } else {
+        arg.extend_integer_width_to(32);
+    }
+}
+
+pub(crate) fn compute_abi_info<Ty>(cx: &impl HasTargetSpec, fn_abi: &mut FnAbi<'_, Ty>) {
+    if !fn_abi.ret.is_ignore() {
+        classify_ret(&mut fn_abi.ret);
+    }
+
+    for arg in fn_abi.args.iter_mut() {
+        classify_arg(cx, arg);
+    }
+}