1*0a6a1f1dSLionel Sambuc // RUN: %clang_cc1 -triple arm64-apple-macosx10.8.0 -fsyntax-only -verify %s 2*0a6a1f1dSLionel Sambuc 3*0a6a1f1dSLionel Sambuc unsigned t, r, *p; 4*0a6a1f1dSLionel Sambuc foo(void)5*0a6a1f1dSLionel Sambucint foo (void) { 6*0a6a1f1dSLionel Sambuc __asm__ __volatile__( "stxr %w[_t], %[_r], [%[_p]]" : [_t] "=&r" (t) : [_p] "p" (p), [_r] "r" (r) : "memory"); // expected-warning{{value size does not match register size specified by the constraint and modifier}} expected-note {{use constraint modifier "w"}} 7*0a6a1f1dSLionel Sambuc return 1; 8*0a6a1f1dSLionel Sambuc } 9