Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/tests/codegen/naked-functions.rs b/tests/codegen/naked-functions.rs
new file mode 100644
index 000000000..e05bbc26e
--- /dev/null
+++ b/tests/codegen/naked-functions.rs
@@ -0,0 +1,32 @@
+// compile-flags: -C no-prepopulate-passes -Copt-level=0
+// needs-asm-support
+// only-x86_64
+
+#![crate_type = "lib"]
+#![feature(naked_functions)]
+use std::arch::asm;
+
+// CHECK: Function Attrs: naked
+// CHECK-NEXT: define{{.*}}void @naked_empty()
+#[no_mangle]
+#[naked]
+pub unsafe extern "C" fn naked_empty() {
+    // CHECK-NEXT: {{.+}}:
+    // CHECK-NEXT: call void asm
+    // CHECK-NEXT: unreachable
+    asm!("ret",
+         options(noreturn));
+}
+
+// CHECK: Function Attrs: naked
+// CHECK-NEXT: define{{.*}}i{{[0-9]+}} @naked_with_args_and_return(i64 %a, i64 %b)
+#[no_mangle]
+#[naked]
+pub unsafe extern "C" fn naked_with_args_and_return(a: isize, b: isize) -> isize {
+    // CHECK-NEXT: {{.+}}:
+    // CHECK-NEXT: call void asm
+    // CHECK-NEXT: unreachable
+    asm!("lea rax, [rdi + rsi]",
+         "ret",
+         options(noreturn));
+}