[Bug ipa/114985] [15 regression] internal compiler error: in discriminator_fail during stage2

[aldyh at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114985

--- Comment #6 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
I wonder if something like this would work.

diff --git a/gcc/ipa-cp.cc b/gcc/ipa-cp.cc
index 5781f50..ea8a685 100644
--- a/gcc/ipa-cp.cc
+++ b/gcc/ipa-cp.cc
@@ -1730,6 +1730,8 @@ ipa_value_range_from_jfunc (vrange &vr,
        }
       else
        {
+         if (TREE_CODE_CLASS (operation) == tcc_comparison)
+           vr_type = boolean_type_node;
          Value_Range op_res (vr_type);
          Value_Range res (vr_type);
          tree op = ipa_get_jf_pass_through_operand (jfunc);