modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/20030804-1.c (about)

     1  /* Extracted from PR middle-end/11771.  */
     2  /* The following testcase used to ICE without -ffast-math from unbounded
     3     recursion in fold.  This was due to the logic in negate_expr_p not
     4     matching that in negate_expr.  */
     5  
     6  double f(double x) {
     7      return -(1 - x) + (x ? -(1 - x) : 0);
     8  }
     9