modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/20021007-1.c (about)

     1  /* PR c/7411 */
     2  /* Verify that GCC simplifies the null addition to i before
     3     virtual register substitution tries it and winds up with
     4     a memory to memory move.  */
     5                          
     6  void foo ()     
     7  {
     8     int i = 0,j;
     9   
    10     i+=j=0;
    11  }