gcc/testsuite/gcc.c-torture/execute/930529-1.x

   1 # The problem on Alpha at -O3 is that when dd is inlined, we have
   2 # division by a constant, which gets converted to multiplication
   3 # by a large constant, which gets turned into an induction variable.
   4 # The problem is that the multiplication was unsigned SImode, and the
   5 # induction variable is DImode, and we lose the truncation that
   6 # should have happened.
   7 #
   8 # On tree-ssa branch, the loop problem is still extant, but the
   9 # gimple-level optimization makes it easy for the tree-rtl expanders
  10 # to see that the comparisons are always true, and so the loop code
  11 # is never exercized.
  12
  13 # set torture_eval_before_execute {
  14 #
  15 #     set compiler_conditional_xfail_data {
  16 #         "division by a constant conflicts with strength reduction" \
  17 #         "alpha*-*-*" \
  18 #         { "-O3" } \
  19 #         { "" }
  20 #     }
  21 # }
  22
  23 return 0