libtool: compile: /home/dave/gnu/gcc/objdir/./gcc/xgcc -B/home/dave/gnu/gcc/obj dir/./gcc/ -B/home/dave/opt/gnu/gcc/gcc-4.7/armv5tejl-unknown-linux-gnueabi/bin/ -B/home/dave/opt/gnu/gcc/gcc-4.7/armv5tejl-unknown-linux-gnueabi/lib/ -isystem /home/dave/opt/gnu/gcc/gcc-4.7/armv5tejl-unknown-linux-gnueabi/include -isystem /home/dave/opt/gnu/gcc/gcc-4.7/armv5tejl-unknown-linux-gnueabi/sys-include -DHAV E_CONFIG_H -I. -I../../../gcc/libgomp -I../../../gcc/libgomp/config/linux/arm -I ../../../gcc/libgomp/config/linux -I../../../gcc/libgomp/config/posix -I../../.. /gcc/libgomp -Wall -Werror -pthread -ftls-model=initial-exec -g -O2 -MT alloc.lo -MD -MP -MF .deps/alloc.Tpo -c ../../../gcc/libgomp/alloc.c -fPIC -DPIC -o .li bs/alloc.o In file included from ../../../gcc/libgomp/alloc.c:29:0: ../../../gcc/libgomp/libgomp.h:87:5: error: unnamed struct/union that defines no instances [-Werror] ../../../gcc/libgomp/libgomp.h:94:5: error: unnamed struct/union that defines no instances [-Werror] ../../../gcc/libgomp/libgomp.h:95:3: error: unnamed struct/union that defines no instances [-Werror] ../../../gcc/libgomp/libgomp.h:146:3: error: unnamed struct/union that defines n o instances [-Werror] ../../../gcc/libgomp/libgomp.h:156:3: error: unnamed struct/union that defines no instances [-Werror] ../../../gcc/libgomp/libgomp.h: In function 'gomp_work_share_init_done': ../../../gcc/libgomp/libgomp.h: In function 'gomp_work_share_init_done': ../../../gcc/libgomp/libgomp.h:502:47: error: 'struct gomp_work_share' has no member named 'next_ws' cc1: all warnings being treated as errors Occurs in stage2 with -bash-3.2$ ./xgcc -B./ -v Reading specs from ./specs COLLECT_GCC=./xgcc COLLECT_LTO_WRAPPER=./lto-wrapper Target: armv5tejl-unknown-linux-gnueabi Configured with: ../gcc/configure --enable-languages=c,c++,fortran,objc,obj-c++ --enable-checking=release --enable-shared --enable-threads --disable-multilib --disable-libmudflap --disable-libssp --enable-symvers=gnu --enable-__cxa_atexit --disable-libstdcxx-pch --prefix=/home/dave/opt/gnu/gcc/gcc-4.7 --with-gmp=/home/dave/opt/gnu --with-as=/home/dave/opt/gnu/bin/as --with-ld=/home/dave/opt/gnu/bin/ld Thread model: posix gcc version 4.7.0 20110912 (experimental) [trunk revision 178782] (GCC)
Warning doesn't occur with gcc version 4.4.7 20110530. There is something arm specific in these warnings as they don't occur on PA.
Do you have some date before when trunk managed bootstraps successfully ? Ramana
On 9/20/2011 6:49 AM, ramana at gcc dot gnu.org wrote: > Do you have some date before when trunk managed bootstraps successfully ? > This is my last successful build: http://gcc.gnu.org/ml/gcc-testresults/2011-09/msg00879.html Dave
I think this is a bootstrap issue rather than a problem with libgomp . A reduced testcase of this form fails with the stage2 compiler but is ok with the stage1 compiler. struct gomp_work_share { /* This member records the SCHEDULE clause to be used for this construct. The user specification of "runtime" will already have been resolved. If this is a SECTIONS construct, this value will always be DYNAMIC. */ union { struct { /* This is the chunk_size argument to the SCHEDULE clause. */ long chunk_size; /* This is the iteration end point. If this is a SECTIONS construct, this is the number of contained sections. */ long end; /* This is the iteration step. If this is a SECTIONS construct, this is always 1. */ long incr; }u; }; }a; Where the stage2 compiler goes : /home/40000/t1.i:21:3: warning: unnamed struct/union that defines no instances [enabled by default] and the stage1 compiler goes quietly. Could you check if you see similar behaviour ? Ramana
On 9/20/2011 6:32 PM, ramana at gcc dot gnu.org wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50386 > > --- Comment #4 from Ramana Radhakrishnan<ramana at gcc dot gnu.org> 2011-09-20 22:32:49 UTC --- > I think this is a bootstrap issue rather than a problem with libgomp . A > reduced testcase of this form fails with the stage2 compiler but is ok with the > stage1 compiler. > > > struct gomp_work_share > { > /* This member records the SCHEDULE clause to be used for this construct. > The user specification of "runtime" will already have been resolved. > If this is a SECTIONS construct, this value will always be DYNAMIC. */ > union { > struct { > /* This is the chunk_size argument to the SCHEDULE clause. */ > long chunk_size; > > /* This is the iteration end point. If this is a SECTIONS construct, > this is the number of contained sections. */ > long end; > > /* This is the iteration step. If this is a SECTIONS construct, this > is always 1. */ > long incr; > }u; > > }; > }a; > > Where the stage2 compiler goes : > > /home/40000/t1.i:21:3: warning: unnamed struct/union that defines no instances > [enabled by default] > > > and the stage1 compiler goes quietly. > > Could you check if you see similar behaviour ? > Yes, exactly. I noted in my original report that the error occurred in stage2. While not fully confirmed, it looks like this was introduced by r178692. Dave
Seems to be the same PR50326. Testing a fix.
Author: rsandifo Date: Tue Sep 27 17:18:22 2011 New Revision: 179285 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179285 Log: gcc/ PR middle-end/50386 PR middle-end/50326 * tree-sra.c (build_ref_for_model): Use the type of the field as the type of the COMPONENT_REF. Modified: trunk/gcc/ChangeLog trunk/gcc/tree-sra.c
Fixed.
Author: jakub Date: Wed Oct 19 08:45:45 2011 New Revision: 180179 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=180179 Log: PR target/50350 Backport from mainline 2011-09-27 Richard Sandiford <rdsandiford@googlemail.com> PR middle-end/50386 PR middle-end/50326 * tree-sra.c (build_ref_for_model): Use the type of the field as the type of the COMPONENT_REF. Modified: branches/gcc-4_6-branch/gcc/ChangeLog branches/gcc-4_6-branch/gcc/tree-sra.c