test/Sema/asm.c

// RUN: clang %s -arch=i386 -verify -fsyntax-only

void
f()
{
  int i;

  asm ("foo\n" : : "a" (i + 2));
  asm ("foo\n" : : "a" (f())); // expected-error {{invalid type 'void' in asm input}}
  
  asm ("foo\n" : "=a" (f())); // expected-error {{invalid lvalue in asm output}}
  asm ("foo\n" : "=a" (i + 2)); // expected-error {{invalid lvalue in asm output}}
  
}

void
clobbers()
{
  asm ("nop" : : : "ax", "#ax", "%ax");
  asm ("nop" : : : "eax", "rax", "ah", "al");
  asm ("nop" : : : "0", "%0", "#0");
  asm ("nop" : : : "foo"); // expected-error {{unknown register name 'foo' in asm}}
  asm ("nop" : : : "52");
  asm ("nop" : : : "53"); // expected-error {{unknown register name '53' in asm}}
  asm ("nop" : : : "-1"); // expected-error {{unknown register name '-1' in asm}}
  asm ("nop" : : : "+1"); // expected-error {{unknown register name '+1' in asm}}
}