Re: [PATCH v2] Fix c++/67371 (issues with throw in constexpr)

[Jason Merrill]

On 08/29/2015 06:14 AM, Markus Trippelsdorf wrote:
+      if (integer_nonzerop (IF_COND (t)) && !RECUR (THEN_CLAUSE (t), any))
+             return false;
+      if (integer_zerop (IF_COND (t)) && !RECUR (ELSE_CLAUSE (t), any))
+             return false;

Actually, I think we can remove the IF_STMT code entirely and move the 
case label to the COND_EXPR case.

Also, please add a comment explaining why we aren't checking 
SWITCH_STMT_BODY.

Jason