}
// Ensure that `va_start` and `va_end` are properly injected even
-// when the "spoofed" `VaList` is not used.
+// when the "spoofed" `VaListImpl` is not used.
#[no_mangle]
pub unsafe extern "C" fn c_variadic_no_use(fmt: *const i8, mut ap: ...) -> i32 {
// CHECK: call void @llvm.va_start
- vprintf(fmt, ap)
+ vprintf(fmt, ap.as_va_list())
+ // CHECK: call void @llvm.va_end
+}
+
+// Check that `VaListImpl::clone` gets inlined into a direct call to `llvm.va_copy`
+#[no_mangle]
+pub unsafe extern "C" fn c_variadic_clone(fmt: *const i8, mut ap: ...) -> i32 {
+ // CHECK: call void @llvm.va_start
+ let mut ap2 = ap.clone();
+ // CHECK: call void @llvm.va_copy
+ let res = vprintf(fmt, ap2.as_va_list());
+ res
// CHECK: call void @llvm.va_end
}