Re: [C/C++ PATCH] -Wlogical-not-parentheses tweaks (PR c/65120)

[Jason Merrill]

On 02/19/2015 07:03 PM, Jakub Jelinek wrote:
+         /* Avoid warning for !!b == y where b is boolean.  */
+         && (!DECL_P (current.lhs)
+             || TREE_TYPE (current.lhs) == NULL_TREE
+             || TREE_CODE (TREE_TYPE (current.lhs)) != BOOLEAN_TYPE))

There's something wrong here.  If the type is null, trying to check its 
TREE_CODE will SEGV.

Jason