* [Bug bootstrap/50758] [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used
2011-10-17 13:38 [Bug bootstrap/50758] New: [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used dominiq at lps dot ens.fr
@ 2011-10-17 14:35 ` howarth at nitro dot med.uc.edu
2011-10-17 15:12 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: howarth at nitro dot med.uc.edu @ 2011-10-17 14:35 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50758
Jack Howarth <howarth at nitro dot med.uc.edu> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |howarth at nitro dot
| |med.uc.edu
--- Comment #1 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-10-17 14:34:30 UTC ---
I don't see this issue at r180087 on x86_64-apple-darwin11 with...
../gcc-4.7-20111017/configure --prefix=/sw --prefix=/sw/lib/gcc4.7
--mandir=/sw/share/man --infodir=/sw/lib/gcc4.7/info
--with-build-config=bootstrap-lto --enable-stage1-languages=c,lto
--enable-languages=c,c++,fortran,lto,objc,obj-c++,java --with-gmp=/sw
--with-libiconv-prefix=/sw --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw
--with-system-zlib --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib
--program-suffix=-fsf-4.7 --enable-checking=yes --enable-cloog-backend=isl
and an lto-bootstrap.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/50758] [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used
2011-10-17 13:38 [Bug bootstrap/50758] New: [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used dominiq at lps dot ens.fr
2011-10-17 14:35 ` [Bug bootstrap/50758] " howarth at nitro dot med.uc.edu
@ 2011-10-17 15:12 ` rguenth at gcc dot gnu.org
2011-10-17 15:27 ` dodji at seketeli dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-10-17 15:12 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50758
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011-10-17
Target Milestone|--- |4.7.0
Ever Confirmed|0 |1
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-17 15:12:20 UTC ---
Confirmed.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/50758] [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used
2011-10-17 13:38 [Bug bootstrap/50758] New: [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used dominiq at lps dot ens.fr
2011-10-17 14:35 ` [Bug bootstrap/50758] " howarth at nitro dot med.uc.edu
2011-10-17 15:12 ` rguenth at gcc dot gnu.org
@ 2011-10-17 15:27 ` dodji at seketeli dot org
2011-10-17 15:42 ` dominiq at lps dot ens.fr
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: dodji at seketeli dot org @ 2011-10-17 15:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50758
--- Comment #3 from dodji at seketeli dot org <dodji at seketeli dot org> 2011-10-17 15:26:54 UTC ---
Are you still seing this with commit r180090?
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/50758] [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used
2011-10-17 13:38 [Bug bootstrap/50758] New: [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used dominiq at lps dot ens.fr
` (2 preceding siblings ...)
2011-10-17 15:27 ` dodji at seketeli dot org
@ 2011-10-17 15:42 ` dominiq at lps dot ens.fr
2011-10-17 15:56 ` dodji at seketeli dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: dominiq at lps dot ens.fr @ 2011-10-17 15:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50758
--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-10-17 15:42:09 UTC ---
> Are you still seing this with commit r180090?
I have bootstrapped revision 180087 with the following patch
--- /opt/gcc/_clean/libcpp/line-map.c 2011-10-17 12:04:41.000000000 +0200
+++ /opt/gcc/work/libcpp/line-map.c 2011-10-17 15:36:30.000000000 +0200
@@ -625,7 +625,7 @@ source_location
linemap_macro_map_loc_to_exp_point (const struct line_map *map,
source_location location)
{
- unsigned token_no;
+ unsigned token_no __attribute__ ((__unused__));
linemap_assert (linemap_macro_expansion_map_p (map)
&& location >= MAP_START_LOCATION (map));
I guess that revision 180090 is a similar fix that should work (I'll have the
answer in a couple hours;-).
Last question: is the warning bogus or not? If no, why? If yes, I'll open a new
PR.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/50758] [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used
2011-10-17 13:38 [Bug bootstrap/50758] New: [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used dominiq at lps dot ens.fr
` (3 preceding siblings ...)
2011-10-17 15:42 ` dominiq at lps dot ens.fr
@ 2011-10-17 15:56 ` dodji at seketeli dot org
2011-10-17 19:40 ` dominiq at lps dot ens.fr
2011-10-17 19:57 ` dominiq at lps dot ens.fr
6 siblings, 0 replies; 8+ messages in thread
From: dodji at seketeli dot org @ 2011-10-17 15:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50758
--- Comment #5 from dodji at seketeli dot org <dodji at seketeli dot org> 2011-10-17 15:56:05 UTC ---
"dominiq at lps dot ens.fr" <gcc-bugzilla@gcc.gnu.org> a écrit:
> I guess that revision 180090 is a similar fix that should work (I'll
> have the answer in a couple hours;-).
OK, thanks.
> Last question: is the warning bogus or not? If no, why? If yes, I'll
> open a new PR.
The warning is not bogus when you are compiling with --disable-checking
or when your GCC_VERSION is < 2007. This is because the way
linemap_assert is defined:
/* Assertion macro to be used in line-map code. */
#define linemap_assert(EXPR) \
do { \
if (! (EXPR)) \
abort (); \
} while (0)
/* Assert that MAP encodes locations of tokens that are not part of
the replacement-list of a macro expansion. */
#define linemap_check_ordinary(LINE_MAP) __extension__ \
({linemap_assert (!linemap_macro_expansion_map_p (LINE_MAP)); \
(LINE_MAP);})
#else
#define linemap_assert(EXPR)
#define linemap_check_ordinary(LINE_MAP) (LINE_MAP)
#endif
In those cases token_no is not used. Hence the fix committed to
revision 180090.
Sorry for the inconvenience.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/50758] [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used
2011-10-17 13:38 [Bug bootstrap/50758] New: [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used dominiq at lps dot ens.fr
` (4 preceding siblings ...)
2011-10-17 15:56 ` dodji at seketeli dot org
@ 2011-10-17 19:40 ` dominiq at lps dot ens.fr
2011-10-17 19:57 ` dominiq at lps dot ens.fr
6 siblings, 0 replies; 8+ messages in thread
From: dominiq at lps dot ens.fr @ 2011-10-17 19:40 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50758
--- Comment #6 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-10-17 19:40:06 UTC ---
> The warning is not bogus when you are compiling with --disable-checking
> or when your GCC_VERSION is < 2007. ...
I am using
../work/configure --prefix=/opt/gcc/gcc4.7w
--enable-languages=c,c++,fortran,objc,obj-c++,java,ada,lto --with-gmp=/opt/sw64
--with-libiconv-prefix=/opt/sw64 --with-system-zlib --with-cloog=/opt/sw64
--enable-cloog-backend=isl --enable-lto
so no --disable-checking and the bootstrap gcc is
configure:4007: gcc --version >&5
gcc (GCC) 4.5.3 20110419 for GNAT GPL 2011 (20110419)
What am I missing?
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/50758] [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used
2011-10-17 13:38 [Bug bootstrap/50758] New: [4.7 Regression] Bootstrap fails at stage 2 on x86_64-apple-darwin10: error: variable 'token_no' set but not used dominiq at lps dot ens.fr
` (5 preceding siblings ...)
2011-10-17 19:40 ` dominiq at lps dot ens.fr
@ 2011-10-17 19:57 ` dominiq at lps dot ens.fr
6 siblings, 0 replies; 8+ messages in thread
From: dominiq at lps dot ens.fr @ 2011-10-17 19:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50758
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #7 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-10-17 19:56:33 UTC ---
BTW bootstrap finished on x86_64-apple-darwin10 and line-map.c compiled at
stage2 on powerpc-apple-darwin9, both at revision 180100. Thanks for the patch.
Closing as fixed.
^ permalink raw reply [flat|nested] 8+ messages in thread