llvm-gcc-4.2/gcc/testsuite/gcc.apple/asm-block-29.c

/* APPLE LOCAL file CW asm blocks */
/* { dg-do assemble { target powerpc*-*-darwin* i?86*-*-darwin* x86_64*-*-darwin*} } */
/* { dg-options { -fasm-blocks -msse3 } } */
/* Radar 4298005 */

void foo() {
  _asm nop
}