* [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap: c/c-parser.c:6891:16: error: origtypes may be used uninitialized in this function
2012-07-05 13:40 [Bug bootstrap/53866] New: [4.8 Regression] c/c-parser.c:6891:16: error: \u2018origtypes\u2019 may be used uninitialized in this function hjl.tools at gmail dot com
@ 2012-07-05 13:43 ` rguenth at gcc dot gnu.org
2012-07-05 13:53 ` hjl.tools at gmail dot com
` (7 subsequent siblings)
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From: rguenth at gcc dot gnu.org @ 2012-07-05 13:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53866
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.8.0
Summary|[4.8 Regression] |[4.8 Regression]
|c/c-parser.c:6891:16: |lto-bootstrap:
|error: |c/c-parser.c:6891:16:
|\u2018origtypes\u2019 may |error: origtypes may be
|be used uninitialized in |used uninitialized in this
|this function |function
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap: c/c-parser.c:6891:16: error: origtypes may be used uninitialized in this function
2012-07-05 13:40 [Bug bootstrap/53866] New: [4.8 Regression] c/c-parser.c:6891:16: error: \u2018origtypes\u2019 may be used uninitialized in this function hjl.tools at gmail dot com
2012-07-05 13:43 ` [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap: c/c-parser.c:6891:16: error: origtypes " rguenth at gcc dot gnu.org
@ 2012-07-05 13:53 ` hjl.tools at gmail dot com
2012-07-05 14:10 ` hjl.tools at gmail dot com
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hjl.tools at gmail dot com @ 2012-07-05 13:53 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53866
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2012-07-05 13:53:42 UTC ---
GCC was configured with
BOOT_CFLAGS="-O3 -mfpmath=sse -msse2 -funroll-loops -ffast-math"
RUNTESTFLAGS="--target_board='unix'" /export/gnu/import/git/gcc/configure
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld
--enable-languages=c,c++,fortran i686-linux --prefix=/usr/gcc-4.8.0
--with-local-prefix=/usr/local --enable-gnu-indirect-function
--with-build-config=bootstrap-lto --with-fpmath=sse
I also got
/export/gnu/import/git/gcc/libiberty/simple-object-mach-o.c: In function
\u2018simple_object_mach_o_find_sections\u2019:
/export/gnu/import/git/gcc/libiberty/simple-object-mach-o.c:653:37: error:
\u2018wrapper_sect_offset\u2019 may be used uninitialized in this function
[-Werror=maybe-uninitialized]
secoffset = wrapper_sect_offset + subsect_offset;
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap: c/c-parser.c:6891:16: error: origtypes may be used uninitialized in this function
2012-07-05 13:40 [Bug bootstrap/53866] New: [4.8 Regression] c/c-parser.c:6891:16: error: \u2018origtypes\u2019 may be used uninitialized in this function hjl.tools at gmail dot com
2012-07-05 13:43 ` [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap: c/c-parser.c:6891:16: error: origtypes " rguenth at gcc dot gnu.org
2012-07-05 13:53 ` hjl.tools at gmail dot com
@ 2012-07-05 14:10 ` hjl.tools at gmail dot com
2012-07-05 14:44 ` hjl.tools at gmail dot com
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hjl.tools at gmail dot com @ 2012-07-05 14:10 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53866
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2012-07-05 14:10:28 UTC ---
Also
/export/gnu/import/git/gcc/gcc/bitmap.c:576:8: error: \u2018in_ready.indx\u2019
may be used uninitialized in this function [-Werror=maybe-uninitialized]
else if (head->indx / 2 < indx)
^
In file included from /export/gnu/import/git/gcc/gcc/emit-rtl.c:6649:0,
from /export/gnu/import/git/gcc/gcc/config/i386/i386.md:3788,
from :6102:
/export/gnu/import/git/gcc/gcc/haifa-sched.c:7586:15: note:
\u2018in_ready.indx\u2019 was declared here
bitmap_head in_ready;
^
lto1: all warnings being treated as errors
make[5]: *** [/tmp/ccS5gs1T.ltrans9.ltrans.o] Error 1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap: c/c-parser.c:6891:16: error: origtypes may be used uninitialized in this function
2012-07-05 13:40 [Bug bootstrap/53866] New: [4.8 Regression] c/c-parser.c:6891:16: error: \u2018origtypes\u2019 may be used uninitialized in this function hjl.tools at gmail dot com
` (2 preceding siblings ...)
2012-07-05 14:10 ` hjl.tools at gmail dot com
@ 2012-07-05 14:44 ` hjl.tools at gmail dot com
2012-07-05 18:04 ` [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap failed at -O3 hjl.tools at gmail dot com
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hjl.tools at gmail dot com @ 2012-07-05 14:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53866
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2012-07-05 14:43:48 UTC ---
The problem seems LTO + O3, which leads many
-Werror=maybe-uninitialized error.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap failed at -O3
2012-07-05 13:40 [Bug bootstrap/53866] New: [4.8 Regression] c/c-parser.c:6891:16: error: \u2018origtypes\u2019 may be used uninitialized in this function hjl.tools at gmail dot com
` (3 preceding siblings ...)
2012-07-05 14:44 ` hjl.tools at gmail dot com
@ 2012-07-05 18:04 ` hjl.tools at gmail dot com
2012-09-19 13:43 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hjl.tools at gmail dot com @ 2012-07-05 18:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53866
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.8 Regression] |[4.8 Regression]
|lto-bootstrap: |lto-bootstrap failed at -O3
|c/c-parser.c:6891:16: |
|error: origtypes may be |
|used uninitialized in this |
|function |
--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> 2012-07-05 18:04:08 UTC ---
This is triggered by -O3 when GCC is configured with
BOOT_CFLAGS="-O3" /export/gnu/import/git/gcc/configure --enable-clocale=gnu
--with-system-zlib --with-demangler-in-ld --enable-languages=c,c++,fortran
--prefix=/usr/gcc-4.8.0 --with-local-prefix=/usr/local
--enable-gnu-indirect-function --with-build-config=bootstrap-lto
--with-fpmath=sse
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap failed at -O3
2012-07-05 13:40 [Bug bootstrap/53866] New: [4.8 Regression] c/c-parser.c:6891:16: error: \u2018origtypes\u2019 may be used uninitialized in this function hjl.tools at gmail dot com
` (4 preceding siblings ...)
2012-07-05 18:04 ` [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap failed at -O3 hjl.tools at gmail dot com
@ 2012-09-19 13:43 ` rguenth at gcc dot gnu.org
2012-11-15 3:20 ` pinskia at gcc dot gnu.org
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-09-19 13:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53866
--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-19 13:42:32 UTC ---
I don't think we necessarily want to fix this ...
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap failed at -O3
2012-07-05 13:40 [Bug bootstrap/53866] New: [4.8 Regression] c/c-parser.c:6891:16: error: \u2018origtypes\u2019 may be used uninitialized in this function hjl.tools at gmail dot com
` (5 preceding siblings ...)
2012-09-19 13:43 ` rguenth at gcc dot gnu.org
@ 2012-11-15 3:20 ` pinskia at gcc dot gnu.org
2012-11-15 20:31 ` hjl.tools at gmail dot com
2012-12-21 10:36 ` rguenth at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-11-15 3:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53866
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-11-15 03:20:16 UTC ---
Does this still happen?
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap failed at -O3
2012-07-05 13:40 [Bug bootstrap/53866] New: [4.8 Regression] c/c-parser.c:6891:16: error: \u2018origtypes\u2019 may be used uninitialized in this function hjl.tools at gmail dot com
` (6 preceding siblings ...)
2012-11-15 3:20 ` pinskia at gcc dot gnu.org
@ 2012-11-15 20:31 ` hjl.tools at gmail dot com
2012-12-21 10:36 ` rguenth at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: hjl.tools at gmail dot com @ 2012-11-15 20:31 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53866
--- Comment #7 from H.J. Lu <hjl.tools at gmail dot com> 2012-11-15 20:31:18 UTC ---
Revision gave 193535:
/export/gnu/import/git/gcc/gcc/c/c-parser.c: In function
\u2018c_parser_postfix_expression_after_primary(c_parser*, unsigned int,
c_expr)\u2019:
/export/gnu/import/git/gcc/gcc/c/c-parser.c:6917:16: error:
\u2018origtypes\u2019 may be used uninitialized in this function
[-Werror=maybe-uninitialized]
origtypes);
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug bootstrap/53866] [4.8 Regression] lto-bootstrap failed at -O3
2012-07-05 13:40 [Bug bootstrap/53866] New: [4.8 Regression] c/c-parser.c:6891:16: error: \u2018origtypes\u2019 may be used uninitialized in this function hjl.tools at gmail dot com
` (7 preceding siblings ...)
2012-11-15 20:31 ` hjl.tools at gmail dot com
@ 2012-12-21 10:36 ` rguenth at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-12-21 10:36 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53866
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |WONTFIX
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-21 10:35:49 UTC ---
Please use --disable-werror for non-standard flags / build configs. We can't
possibly fix all warnings that may appear when you enable random flags.
^ permalink raw reply [flat|nested] 10+ messages in thread