about summary refs log tree commit diff
path: root/tests/codegen/asm/maybe-uninit.rs
diff options
context:
space:
mode:
authorTaiki Endo <te316e89@gmail.com>2024-11-01 22:12:55 +0900
committerTaiki Endo <te316e89@gmail.com>2024-11-01 22:12:55 +0900
commit96e7eaf478f53cdf417ad681d2afa07b00abbdfd (patch)
treeac8bbc17410f3a71f96f8325955b59ae5730c20c /tests/codegen/asm/maybe-uninit.rs
parenta8e1186e3c14a54f7a38cc1183117dc7e77f4f82 (diff)
downloadrust-96e7eaf478f53cdf417ad681d2afa07b00abbdfd.tar.gz
rust-96e7eaf478f53cdf417ad681d2afa07b00abbdfd.zip
Move remaining inline assembly test files into asm directory
Diffstat (limited to 'tests/codegen/asm/maybe-uninit.rs')
-rw-r--r--tests/codegen/asm/maybe-uninit.rs27
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/codegen/asm/maybe-uninit.rs b/tests/codegen/asm/maybe-uninit.rs
new file mode 100644
index 00000000000..55813c35a46
--- /dev/null
+++ b/tests/codegen/asm/maybe-uninit.rs
@@ -0,0 +1,27 @@
+//@ compile-flags: -O
+//@ only-x86_64
+
+#![crate_type = "rlib"]
+#![allow(asm_sub_register)]
+
+use std::arch::asm;
+use std::mem::MaybeUninit;
+
+// CHECK-LABEL: @int
+#[no_mangle]
+pub unsafe fn int(x: MaybeUninit<i32>) -> MaybeUninit<i32> {
+    let y: MaybeUninit<i32>;
+    asm!("/*{}{}*/", in(reg) x, out(reg) y);
+    y
+}
+
+// CHECK-LABEL: @inout
+#[no_mangle]
+pub unsafe fn inout(mut x: i32) -> MaybeUninit<u32> {
+    let mut y: MaybeUninit<u32>;
+    asm!("/*{}*/", inout(reg) x => y);
+    asm!("/*{}*/", inout(reg) y => x);
+    asm!("/*{}*/", inlateout(reg) x => y);
+    asm!("/*{}*/", inlateout(reg) y => x);
+    y
+}