clang/test/Sema/heinous-extensions-off.c

// RUN: %clang_cc1 %s -verify

void foo(void) {
  int a;
  // PR3788
  asm("nop" : : "m"((int)(a))); // expected-error {{invalid use of a cast in an inline asm context requiring an lvalue}}
  // PR3794
  asm("nop" : "=r"((unsigned)a)); // expected-error {{invalid use of a cast in an inline asm context requiring an lvalue}}
}