Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 54 insertions, 0 deletions

diff --git a/tests/codegen/asm-multiple-options.rs b/tests/codegen/asm-multiple-options.rs
new file mode 100644
index 000000000..1ae37d627
--- /dev/null
+++ b/tests/codegen/asm-multiple-options.rs
@@ -0,0 +1,54 @@
+// compile-flags: -O
+// only-x86_64
+
+#![crate_type = "rlib"]
+
+use std::arch::asm;
+
+// CHECK-LABEL: @pure
+// CHECK-NOT: asm
+// CHECK: ret void
+#[no_mangle]
+pub unsafe fn pure(x: i32) {
+    let y: i32;
+    asm!("", out("ax") y, in("cx") x, options(pure), options(nomem));
+}
+
+pub static mut VAR: i32 = 0;
+pub static mut DUMMY_OUTPUT: i32 = 0;
+
+// CHECK-LABEL: @readonly
+// CHECK: call i32 asm
+// CHECK: ret i32 1
+#[no_mangle]
+pub unsafe fn readonly() -> i32 {
+    VAR = 1;
+    asm!("", out("ax") DUMMY_OUTPUT, options(pure), options(readonly));
+    VAR
+}
+
+// CHECK-LABEL: @nomem
+// CHECK-NOT: store
+// CHECK: call i32 asm
+// CHECK: store
+// CHECK: ret i32 2
+#[no_mangle]
+pub unsafe fn nomem() -> i32 {
+    VAR = 1;
+    asm!("", out("ax") DUMMY_OUTPUT, options(pure), options(nomem));
+    VAR = 2;
+    VAR
+}
+
+// CHECK-LABEL: @not_nomem
+// CHECK: store
+// CHECK: call i32 asm
+// CHECK: store
+// CHECK: ret i32 2
+#[no_mangle]
+pub unsafe fn not_nomem() -> i32 {
+    VAR = 1;
+    asm!("", out("ax") DUMMY_OUTPUT, options(pure), options(readonly));
+    VAR = 2;
+    VAR
+}