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From: "hpa at zytor dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/59852] Support sparse-style __attribute__((bitwise)) (type attribute)
Date: Tue, 21 Jan 2014 00:00:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59852

--- Comment #3 from H. Peter Anvin <hpa at zytor dot com> ---
a == b and a != b are permitted.
~a is permitted iff sizeof(a) >= sizeof(int).
!a and other booleanizing operations are permitted but produces integer
(non-bitwise) results.