From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18353 invoked by alias); 21 Feb 2014 03:09:34 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 18291 invoked by uid 48); 21 Feb 2014 03:09:28 -0000 From: "tromey at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/59850] Support sparse-style pointer address spaces (type attributes) Date: Fri, 21 Feb 2014 03:09:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: tromey at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-02/txt/msg02173.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59850 --- Comment #17 from Tom Tromey --- It seems that "force" works on function parameters and casts but not direct assignments: bapiya. nl -ba /tmp/q.c 1 #define A(N) __attribute__((address_space (N))) 2 #define force __attribute__((force)) 3 4 force int *ok; 5 A(1) int *nope; 6 7 void g(force int *p) 8 { 9 ok = p; 10 } 11 12 void f(void) 13 { 14 g(nope); 15 ok = nope; 16 } bapiya. ./sparse -Wno-decl -Waddress-space /tmp/q.c /tmp/q.c:15:6: warning: incorrect type in assignment (different address spaces) /tmp/q.c:15:6: expected int *[addressable] [toplevel] [assigned] ok /tmp/q.c:15:6: got int *[addressable] [toplevel] nope (This is using git master sparse from today)