gcc-4.9/gcc/testsuite/gcc.dg/pr57104.c


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/* PR tree-optimization/57104 */
/* { dg-do compile { target { x86_64-*-linux* && lp64 } } } */
/* { dg-options "-fsanitize=thread" } */

register int r asm ("r14");
int v;

int
foo (void)
{
  return r + v;
}