Rollup merge of rust-lang#57657 - AB1908:regression-test-case, r=niko…

…matsakis

Add regression test to close rust-lang#53787

Fixes rust-lang#53787

src/test/ui/issue-53787-inline-assembler-macro.rs

@@ -0,0 +1,23 @@
+// Regression test for Issue #53787: Fix ICE when creating a label in inline assembler with macros.
+
+#![feature(asm)]
+
+macro_rules! fake_jump {
+    ($id:expr) => {
+        unsafe {
+            asm!(
+            "
+            jmp $0
+            lea eax, [ebx]
+            xor eax, 0xDEADBEEF
+            retn
+            $0:
+            "::"0"($id)::"volatile", "intel");
+        }
+    };
+}
+
+fn main() {
+    fake_jump!("FirstFunc"); //~ ERROR invalid value for constraint in inline assembly
+    println!("Hello, world!");
+}

src/test/ui/issue-53787-inline-assembler-macro.stderr

@@ -0,0 +1,9 @@
+error[E0669]: invalid value for constraint in inline assembly
+  --> $DIR/issue-53787-inline-assembler-macro.rs:21:16
+   |
+LL |     fake_jump!("FirstFunc"); //~ ERROR invalid value for constraint in inline assembly
+   |                ^^^^^^^^^^^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0669`.