From: Dodji Seketeli <dodji@redhat.com>
To: Richard Guenther <richard.guenther@gmail.com>
Cc: gcc-patches@gcc.gnu.org, jason@redhat.com, tromey@redhat.com,
gdr@integrable-solutions.net, joseph@codesourcery.com,
burnus@net-b.de, charlet@act-europe.fr
Subject: Re: [PATCH 3/6] Emit macro expansion related diagnostics
Date: Mon, 17 Oct 2011 12:22:00 -0000 [thread overview]
Message-ID: <m3ty77x2ex.fsf@redhat.com> (raw)
In-Reply-To: <CAFiYyc2HtvzNjQXGmhYterKGFSFscj8oMWgzxvtpNOtQt2wDqw@mail.gmail.com> (Richard Guenther's message of "Mon, 17 Oct 2011 12:42:29 +0200")
Richard Guenther <richard.guenther@gmail.com> writes:
> This broke bootstrap on x86_64-linux.
>
> /space/rguenther/src/svn/trunk/libcpp/line-map.c: In function
> 'source_location linemap_macro_map_loc_to_exp_point(const line_map*,
> source_location)':
> /space/rguenther/src/svn/trunk/libcpp/line-map.c:628:12: error:
> variable 'token_no' set but not used [-Werror=unused-but-set-variable]
> cc1plus: all warnings being treated as errors
Sigh.
I guess the reason why my testing hasn't caught this is that I am
bootstrapping with --enable-checking and so on my system ENABLE_CHECKING
is defined and my GCC_VERSION >= 2007.
I am bootstrapping and testing the obvious patch below with
--disable-bootstrap and I am planning to check it in if it passes, under
the obvious rule.
Sorry for the inconvenience.
commit e957242a9a8ec8f297e05ca0dae1d63bf543fad8
Author: Dodji Seketeli <dodji@redhat.com>
Date: Mon Oct 17 13:33:41 2011 +0200
Fix bootstrapping with --disable-checking
libcpp/ChangeLog
* line-map.c (linemap_macro_map_loc_to_exp_point): Avoid setting a
variable without using it if ENABLE_CHECKING is not defined.
diff --git a/libcpp/line-map.c b/libcpp/line-map.c
index 87b8bfe..a1d0fbb 100644
--- a/libcpp/line-map.c
+++ b/libcpp/line-map.c
@@ -625,14 +625,12 @@ source_location
linemap_macro_map_loc_to_exp_point (const struct line_map *map,
source_location location)
{
- unsigned token_no;
-
linemap_assert (linemap_macro_expansion_map_p (map)
&& location >= MAP_START_LOCATION (map));
/* Make sure LOCATION is correct. */
- token_no = location - MAP_START_LOCATION (map);
- linemap_assert (token_no < MACRO_MAP_NUM_MACRO_TOKENS (map));
+ linemap_assert ((location - MAP_START_LOCATION (map))
+ < MACRO_MAP_NUM_MACRO_TOKENS (map));
return MACRO_MAP_EXPANSION_POINT_LOCATION (map);
}
--
Dodji
next prev parent reply other threads:[~2011-10-17 11:51 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-17 9:58 [PATCH 0/6] Tracking locations of tokens resulting from macro expansion Dodji Seketeli
2011-10-17 9:58 ` [PATCH 3/6] Emit macro expansion related diagnostics Dodji Seketeli
2011-10-17 10:56 ` Richard Guenther
2011-10-17 12:22 ` Dodji Seketeli [this message]
2011-10-17 14:11 ` Dodji Seketeli
2011-10-17 17:41 ` H.J. Lu
2011-10-18 0:29 ` Dodji Seketeli
2011-10-18 6:07 ` Jason Merrill
2011-10-18 9:22 ` Dodji Seketeli
2011-10-17 10:08 ` [PATCH 4/6] Support -fdebug-cpp option Dodji Seketeli
2011-10-17 10:19 ` [PATCH 6/6] Reduce memory waste due to non-power-of-2 allocs Dodji Seketeli
2011-10-17 10:22 ` [PATCH 5/6] Add line map statistics to -fmem-report output Dodji Seketeli
2011-10-17 10:25 ` [PATCH 1/6] Linemap infrastructure for virtual locations Dodji Seketeli
2011-10-17 19:53 ` Gerald Pfeifer
2011-10-17 20:44 ` Dodji Seketeli
2011-10-18 7:24 ` Gerald Pfeifer
2011-10-18 9:44 ` Dodji Seketeli
2011-10-17 10:26 ` [PATCH 2/6] Generate virtual locations for tokens Dodji Seketeli
2011-10-19 14:48 ` Ulrich Weigand
2011-10-19 17:11 ` Dodji Seketeli
2011-10-19 20:42 ` Dodji Seketeli
-- strict thread matches above, loose matches on Subject: below --
2011-10-18 15:25 [PATCH 3/6] Emit macro expansion related diagnostics David Edelsohn
2011-10-18 15:30 ` Joseph S. Myers
2011-10-18 15:37 ` Gabriel Dos Reis
2011-10-18 15:34 ` Jakub Jelinek
2011-10-18 16:56 ` Dodji Seketeli
2011-10-18 18:16 ` Dodji Seketeli
2010-12-10 11:27 [PATCH 0/6] Tracking locations of tokens resulting from macro expansion Dodji Seketeli
2010-12-10 11:27 ` [PATCH 3/6] Emit macro expansion related diagnostics Dodji Seketeli
2010-12-13 15:25 ` Paolo Bonzini
2010-12-13 15:38 ` Paolo Bonzini
2010-12-13 16:30 ` Manuel López-Ibáñez
2010-12-14 7:24 ` Dodji Seketeli
2010-12-14 7:28 ` Gabriel Dos Reis
2010-12-14 8:40 ` Dodji Seketeli
2010-12-14 9:38 ` Gabriel Dos Reis
2010-12-14 9:42 ` Dodji Seketeli
2010-12-14 9:48 ` Gabriel Dos Reis
2010-12-14 7:28 ` Dodji Seketeli
2010-12-14 8:19 ` Gabriel Dos Reis
2010-12-14 8:31 ` Paolo Bonzini
2010-12-14 9:23 ` Dodji Seketeli
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