Add test for issue-54067

Author: JohnTitor

src/test/ui/asm/issue-54067.rs

@@ -0,0 +1,12 @@
+// check-pass
+// ignore-emscripten no llvm_asm! support
+
+#![feature(llvm_asm)]
+
+pub fn boot(addr: Option<u32>) {
+    unsafe {
+        llvm_asm!("mov sp, $0"::"r" (addr));
+    }
+}
+
+fn main() {}