From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/test/ui/abi/struct-enums/struct-return.rs | 122 ++++++++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 src/test/ui/abi/struct-enums/struct-return.rs

(limited to 'src/test/ui/abi/struct-enums')

diff --git a/src/test/ui/abi/struct-enums/struct-return.rs b/src/test/ui/abi/struct-enums/struct-return.rs
new file mode 100644
index 000000000..1a7984ea5
--- /dev/null
+++ b/src/test/ui/abi/struct-enums/struct-return.rs
@@ -0,0 +1,122 @@
+// run-pass
+#![allow(dead_code)]
+// ignore-wasm32-bare no libc to test ffi with
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct Quad {
+    a: u64,
+    b: u64,
+    c: u64,
+    d: u64,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct Floats {
+    a: f64,
+    b: u8,
+    c: f64,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct CharCharDouble {
+    a: u8,
+    b: u8,
+    c: f64,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct CharCharFloat {
+    a: u8,
+    b: u8,
+    c: f32,
+}
+
+mod rustrt {
+    use super::{CharCharDouble, CharCharFloat, Floats, Quad};
+
+    #[link(name = "rust_test_helpers", kind = "static")]
+    extern "C" {
+        pub fn rust_dbg_abi_1(q: Quad) -> Quad;
+        pub fn rust_dbg_abi_2(f: Floats) -> Floats;
+        pub fn rust_dbg_abi_3(a: CharCharDouble) -> CharCharDouble;
+        pub fn rust_dbg_abi_4(a: CharCharFloat) -> CharCharFloat;
+    }
+}
+
+fn test1() {
+    unsafe {
+        let q = Quad {
+            a: 0xaaaa_aaaa_aaaa_aaaa,
+            b: 0xbbbb_bbbb_bbbb_bbbb,
+            c: 0xcccc_cccc_cccc_cccc,
+            d: 0xdddd_dddd_dddd_dddd,
+        };
+        let qq = rustrt::rust_dbg_abi_1(q);
+        println!("a: {:x}", qq.a as usize);
+        println!("b: {:x}", qq.b as usize);
+        println!("c: {:x}", qq.c as usize);
+        println!("d: {:x}", qq.d as usize);
+        assert_eq!(qq.a, q.c + 1);
+        assert_eq!(qq.b, q.d - 1);
+        assert_eq!(qq.c, q.a + 1);
+        assert_eq!(qq.d, q.b - 1);
+    }
+}
+
+#[cfg(target_pointer_width = "64")]
+fn test2() {
+    unsafe {
+        let f = Floats { a: 1.234567890e-15_f64, b: 0b_1010_1010, c: 1.0987654321e-15_f64 };
+        let ff = rustrt::rust_dbg_abi_2(f);
+        println!("a: {}", ff.a as f64);
+        println!("b: {}", ff.b as usize);
+        println!("c: {}", ff.c as f64);
+        assert_eq!(ff.a, f.c + 1.0f64);
+        assert_eq!(ff.b, 0xff);
+        assert_eq!(ff.c, f.a - 1.0f64);
+    }
+}
+
+#[cfg(target_pointer_width = "32")]
+fn test2() {}
+
+#[cfg(target_pointer_width = "64")]
+fn test3() {
+    unsafe {
+        let a = CharCharDouble { a: 1, b: 2, c: 3. };
+        let b = rustrt::rust_dbg_abi_3(a);
+        println!("a: {}", b.a);
+        println!("b: {}", b.b);
+        println!("c: {}", b.c);
+        assert_eq!(b.a, a.a + 1);
+        assert_eq!(b.b, a.b - 1);
+        assert_eq!(b.c, a.c + 1.0);
+    }
+}
+
+#[cfg(target_pointer_width = "32")]
+fn test3() {}
+
+fn test4() {
+    unsafe {
+        let a = CharCharFloat { a: 1, b: 2, c: 3. };
+        let b = rustrt::rust_dbg_abi_4(a);
+        println!("a: {}", b.a);
+        println!("b: {}", b.b);
+        println!("c: {}", b.c);
+        assert_eq!(b.a, a.a + 1);
+        assert_eq!(b.b, a.b - 1);
+        assert_eq!(b.c, a.c + 1.0);
+    }
+}
+
+pub fn main() {
+    test1();
+    test2();
+    test3();
+    test4();
+}
-- 
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