1*f4a2713aSLionel Sambuc // RUN: %clang_cc1 %s -triple armv7-apple-darwin -verify -fsyntax-only 2*f4a2713aSLionel Sambuc 3*f4a2713aSLionel Sambuc void f (void) { 4*f4a2713aSLionel Sambuc int Val; 5*f4a2713aSLionel Sambuc asm volatile ("lw (r1), %0[val]": "=&b"(Val)); // expected-error {{invalid output constraint '=&b' in asm}} 6*f4a2713aSLionel Sambuc return; 7*f4a2713aSLionel Sambuc } 8