diff --git a/gcc/range-op.cc b/gcc/range-op.cc index 19bdf30911a..ebc21d6038a 100644 --- a/gcc/range-op.cc +++ b/gcc/range-op.cc @@ -144,22 +144,21 @@ range_operator::wi_fold_in_parts (irange &r, tree type, const wide_int &rh_lb, const wide_int &rh_ub) const { - wi::overflow_type ov_rh, ov_lh; int_range_max tmp; - wide_int rh_range = wi::sub (rh_ub, rh_lb, TYPE_SIGN (type), &ov_rh); - wide_int lh_range = wi::sub (lh_ub, lh_lb, TYPE_SIGN (type), &ov_lh); - signop sign = TYPE_SIGN (type);; + widest_int rh_range = wi::sub (widest_int::from (rh_ub, TYPE_SIGN (type)), + widest_int::from (rh_lb, TYPE_SIGN (type))); + widest_int lh_range = wi::sub (widest_int::from (lh_ub, TYPE_SIGN (type)), + widest_int::from (lh_lb, TYPE_SIGN (type))); // If there are 2, 3, or 4 values in the RH range, do them separately. // Call wi_fold_in_parts to check the RH side. - if (wi::gt_p (rh_range, 0, sign) && wi::lt_p (rh_range, 4, sign) - && ov_rh == wi::OVF_NONE) + if (rh_range > 0 && rh_range < 4) { wi_fold_in_parts (r, type, lh_lb, lh_ub, rh_lb, rh_lb); - if (wi::gt_p (rh_range, 1, sign)) + if (rh_range > 1) { wi_fold_in_parts (tmp, type, lh_lb, lh_ub, rh_lb + 1, rh_lb + 1); r.union_ (tmp); - if (wi::eq_p (rh_range, 3)) + if (rh_range == 3) { wi_fold_in_parts (tmp, type, lh_lb, lh_ub, rh_lb + 2, rh_lb + 2); r.union_ (tmp); @@ -170,15 +169,14 @@ range_operator::wi_fold_in_parts (irange &r, tree type, } // Otherise check for 2, 3, or 4 values in the LH range and split them up. // The RH side has been checked, so no recursion needed. - else if (wi::gt_p (lh_range, 0, sign) && wi::lt_p (lh_range, 4, sign) - && ov_lh == wi::OVF_NONE) + else if (lh_range > 0 && lh_range < 4) { wi_fold (r, type, lh_lb, lh_lb, rh_lb, rh_ub); - if (wi::gt_p (lh_range, 1, sign)) + if (lh_range > 1) { wi_fold (tmp, type, lh_lb + 1, lh_lb + 1, rh_lb, rh_ub); r.union_ (tmp); - if (wi::eq_p (lh_range, 3)) + if (lh_range == 3) { wi_fold (tmp, type, lh_lb + 2, lh_lb + 2, rh_lb, rh_ub); r.union_ (tmp); diff --git a/gcc/testsuite/g++.dg/opt/pr104334.C b/gcc/testsuite/g++.dg/opt/pr104334.C new file mode 100644 index 00000000000..8b75b6a9122 --- /dev/null +++ b/gcc/testsuite/g++.dg/opt/pr104334.C @@ -0,0 +1,40 @@ +// PR tree-optimization/104334 +// { dg-do run { target c++11 } } +// { dg-options "-O2 --param logical-op-non-short-circuit=0" } + +enum class A { A0, A1, A2, A3 }; +int x; + +__attribute__((noipa)) void +baz () +{ + x = 1; +} + +struct B { + unsigned b : 2; + + A + foo () const + { + return static_cast (b); + } + + __attribute__((noinline)) void + bar () + { + if (foo () == A::A2 || foo () == A::A3) + baz (); + } +}; + +int +main () +{ + B c; + c.b = 2; + c.bar (); + if (x != 1) + __builtin_abort (); + return 0; +}