1// RUN: %clang_cc1 %s -triple armv7-apple-darwin -verify -fsyntax-only
2
3void f (void) {
4  int Val;
5  asm volatile ("lw (r1), %0[val]": "=&b"(Val)); // expected-error {{invalid output constraint '=&b' in asm}}
6  return;
7}
8