[Bug rtl-optimization/51366] New: [cygwin] ICE in maybe_record_trace_start, at dwarf2cfi.c:2244

[Bug rtl-optimization/51366] New: [cygwin] ICE in maybe_record_trace_start, at dwarf2cfi.c:2244

[gcc@Denis-Excoffier.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51366

             Bug #: 51366
           Summary: [cygwin] ICE in maybe_record_trace_start, at
                    dwarf2cfi.c:2244
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: gcc@Denis-Excoffier.org


Created attachment 25960
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25960
preprocessed exclude.c

Under last Cygwin (XP 32bits) and with gcc-4.7-20111119, i get this message
with exclude.c (directly from the rsync-3.0.9 distribution), see
attachment (preprocessed). No problem with other platforms (Darwin PPC or
Intel,
Ubuntu at least).

This might have something to do with #51271.
However, i cannot reproduce the minimal test case given under
the first comment of that bug report.

% gcc -O2 -o exclude.o -c exclude.c
exclude.c: In function 'get_cvs_excludes':
exclude.c:943:1: internal compiler error: in maybe_record_trace_start, at
dwarf2cfi.c:2244
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug rtl-optimization/51366] [cygwin] ICE in maybe_record_trace_start, at dwarf2cfi.c:2244

[gcc@Denis-Excoffier.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51366

--- Comment #1 from Denis Excoffier <gcc@Denis-Excoffier.org> 2011-12-01 09:04:00 UTC ---
Configure line was:

/tmp/lcl/tmp/gcc/gcc-4.7-20111119/configure
--prefix=/tmp/lcl/uxl/gcc-4.7-20111126 --with-local-prefix=/usr/local/here
--enable-languages=c,c++ --disable-sjlj-exceptions

[Bug rtl-optimization/51366] [cygwin] ICE in maybe_record_trace_start, at dwarf2cfi.c:2244

[jojelino at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51366

--- Comment #2 from gee <jojelino at gmail dot com> 2011-12-05 05:02:23 UTC ---
Created attachment 25988
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25988
preprocessed source

g++ -L/tmp/winsup/i686-pc-cygwin/winsup
-L/tmp/winsup/i686-pc-cygwin/winsup/cygwin
-L/tmp/winsup/i686-pc-cygwin/winsup/w32api/lib -isystem
/tmp/winsup/winsup/include -isystem /tmp/winsup/winsup/cygwin/include -isystem
/tmp/winsup/winsup/w32api/include -B/tmp/winsup/i686-pc-cygwin/newlib/ -isystem
/tmp/winsup/i686-pc-cygwin/newlib/targ-include -isystem
/tmp/winsup/newlib/libc/include    -c -nostdinc++   -DHAVE_CONFIG_H  -O2
-fomit-frame-pointer -mstackrealign -march=core2 -mfpmath=sse -MMD 
-fmerge-constants -ftracer  -mno-use-libstdc-wrappers  -Wall -Wstrict-aliasing
-Wwrite-strings -fno-common -pipe -fbuiltin -fmessage-length=0  -I. 
-I/tmp/winsup/winsup/cygwin  -I/tmp/winsup/winsup/w32api/include
-I../../.././winsup/cygwin/config/i386
-I/usr/lib/gcc/i686-pc-cygwin/4.7.0/include -fno-rtti -fno-exceptions -o
./strace.o /tmp/winsup/winsup/cygwin/strace.cc -save-temps -v
g++: warning: -pipe ignored because -save-temps specified
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/i686-pc-cygwin/4.7.0/lto-wrapper.exe
Target: i686-pc-cygwin
Configured with: ./configure --config-cache --prefix=/usr
--disable-win32-registry --enable-threads=win32 --with-win32-nlsapi=unicode
--enable-tls --disable-bootstrap --enable-shared --disable-sjlj-exceptions
--enable-gomp --enable-cloog-backend=isl --enable-languages=c,c++,fortran,lto
--no-create --no-recursion
Thread model: win32
gcc version 4.7.0 20111125 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-L/tmp/winsup/i686-pc-cygwin/winsup'
'-L/tmp/winsup/i686-pc-cygwin/winsup/cygwin'
'-L/tmp/winsup/i686-pc-cygwin/winsup/w32api/lib' '-isystem'
'/tmp/winsup/winsup/include' '-isystem' '/tmp/winsup/winsup/cygwin/include'
'-isystem' '/tmp/winsup/winsup/w32api/include' '-B'
'/tmp/winsup/i686-pc-cygwin/newlib/' '-isystem'
'/tmp/winsup/i686-pc-cygwin/newlib/targ-include' '-isystem'
'/tmp/winsup/newlib/libc/include' '-c' '-nostdinc++' '-D' 'HAVE_CONFIG_H' '-O2'
'-fomit-frame-pointer' '-mstackrealign' '-march=core2' '-mfpmath=sse' '-MMD'
'-fmerge-constants' '-ftracer' '-mno-use-libstdc-wrappers' '-Wall'
'-Wstrict-aliasing' '-Wwrite-strings' '-fno-common' '-pipe' '-fbuiltin'
'-fmessage-length=0' '-I' '.' '-I' '/tmp/winsup/winsup/cygwin' '-I'
'/tmp/winsup/winsup/w32api/include' '-I' '../../.././winsup/cygwin/config/i386'
'-I' '/usr/lib/gcc/i686-pc-cygwin/4.7.0/include' '-fno-rtti' '-fno-exceptions'
'-o' './strace.o' '-save-temps' '-v' '-shared-libgcc'
 /usr/libexec/gcc/i686-pc-cygwin/4.7.0/cc1plus.exe -E -quiet -nostdinc++ -v -I
. -I /tmp/winsup/winsup/cygwin -I /tmp/winsup/winsup/w32api/include -I
../../.././winsup/cygwin/config/i386 -I
/usr/lib/gcc/i686-pc-cygwin/4.7.0/include -MMD ./strace.d -MQ ./strace.o
-D__CYGWIN32__ -D__CYGWIN__ -Dunix -D__unix__ -D__unix -idirafter
/usr/lib/gcc/i686-pc-cygwin/4.7.0/../../../../i686-pc-cygwin/lib/../include/w32api
-idirafter
/usr/lib/gcc/i686-pc-cygwin/4.7.0/../../../../i686-pc-cygwin/lib/../../include/w32api
-D HAVE_CONFIG_H -isystem /tmp/winsup/winsup/include -isystem
/tmp/winsup/winsup/cygwin/include -isystem /tmp/winsup/winsup/w32api/include
-isystem /tmp/winsup/i686-pc-cygwin/newlib/targ-include -isystem
/tmp/winsup/newlib/libc/include /tmp/winsup/winsup/cygwin/strace.cc
-mstackrealign -march=core2 -mfpmath=sse -mno-use-libstdc-wrappers -Wall
-Wstrict-aliasing -Wwrite-strings -fomit-frame-pointer -fmerge-constants
-ftracer -fno-common -fbuiltin -fmessage-length=0 -fno-rtti -fno-exceptions -O2
-fpch-preprocess -o strace.ii
ignoring nonexistent directory "/tmp/winsup/winsup/include"
ignoring duplicate directory "/usr/include"
ignoring duplicate directory
"/usr/lib/gcc/i686-pc-cygwin/4.7.0/../../../../i686-pc-cygwin/lib/../../include/w32api"
ignoring duplicate directory "/tmp/winsup/winsup/w32api/include"
  as it is a non-system directory that duplicates a system directory
ignoring duplicate directory "/usr/lib/gcc/i686-pc-cygwin/4.7.0/include"
  as it is a non-system directory that duplicates a system directory
#include "..." search starts here:
#include <...> search starts here:
 .
 /tmp/winsup/winsup/cygwin
 ../../.././winsup/cygwin/config/i386
 /tmp/winsup/winsup/cygwin/include
 /tmp/winsup/winsup/w32api/include
 /tmp/winsup/i686-pc-cygwin/newlib/targ-include
 /tmp/winsup/newlib/libc/include
 /usr/lib/gcc/i686-pc-cygwin/4.7.0/include
 /usr/local/include
 /usr/lib/gcc/i686-pc-cygwin/4.7.0/include-fixed
 /usr/lib/gcc/i686-pc-cygwin/4.7.0/../../../../i686-pc-cygwin/include

/usr/lib/gcc/i686-pc-cygwin/4.7.0/../../../../i686-pc-cygwin/lib/../include/w32api
End of search list.
COLLECT_GCC_OPTIONS='-L/tmp/winsup/i686-pc-cygwin/winsup'
'-L/tmp/winsup/i686-pc-cygwin/winsup/cygwin'
'-L/tmp/winsup/i686-pc-cygwin/winsup/w32api/lib' '-isystem'
'/tmp/winsup/winsup/include' '-isystem' '/tmp/winsup/winsup/cygwin/include'
'-isystem' '/tmp/winsup/winsup/w32api/include' '-B'
'/tmp/winsup/i686-pc-cygwin/newlib/' '-isystem'
'/tmp/winsup/i686-pc-cygwin/newlib/targ-include' '-isystem'
'/tmp/winsup/newlib/libc/include' '-c' '-nostdinc++' '-D' 'HAVE_CONFIG_H' '-O2'
'-fomit-frame-pointer' '-mstackrealign' '-march=core2' '-mfpmath=sse' '-MMD'
'-fmerge-constants' '-ftracer' '-mno-use-libstdc-wrappers' '-Wall'
'-Wstrict-aliasing' '-Wwrite-strings' '-fno-common' '-pipe' '-fbuiltin'
'-fmessage-length=0' '-I' '.' '-I' '/tmp/winsup/winsup/cygwin' '-I'
'/tmp/winsup/winsup/w32api/include' '-I' '../../.././winsup/cygwin/config/i386'
'-I' '/usr/lib/gcc/i686-pc-cygwin/4.7.0/include' '-fno-rtti' '-fno-exceptions'
'-o' './strace.o' '-save-temps' '-v' '-shared-libgcc'
 /usr/libexec/gcc/i686-pc-cygwin/4.7.0/cc1plus.exe -fpreprocessed strace.ii
-quiet -dumpbase strace.cc -mstackrealign -march=core2 -mfpmath=sse
-mno-use-libstdc-wrappers -auxbase-strip ./strace.o -O2 -Wall -Wstrict-aliasing
-Wwrite-strings -version -fomit-frame-pointer -fmerge-constants -ftracer
-fno-common -fbuiltin -fmessage-length=0 -fno-rtti -fno-exceptions -o strace.s
GNU C++ (GCC) version 4.7.0 20111125 (experimental) (i686-pc-cygwin)
        compiled by GNU C version 4.7.0 20111125 (experimental), GMP version
5.0.2, MPFR version 3.2.0-dev, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C++ (GCC) version 4.7.0 20111125 (experimental) (i686-pc-cygwin)
        compiled by GNU C version 4.7.0 20111125 (experimental), GMP version
5.0.2, MPFR version 3.2.0-dev, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: b52562f38a77b66f59b8a0776e5c6bbc
/tmp/winsup/winsup/cygwin/strace.cc:33:47: warning: always_inline function
might not be inlinable [-Wattributes]
/tmp/winsup/winsup/cygwin/strace.cc: In member function ‘void
strace::activate(bool)’:
/tmp/winsup/winsup/cygwin/strace.cc:71:1: internal compiler error: in
maybe_record_trace_start, at dwarf2cfi.c:2244
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug rtl-optimization/51366] [cygwin] ICE in maybe_record_trace_start, at dwarf2cfi.c:2244

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51366

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2011-12-15
     Ever Confirmed|0                           |1

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-15 00:05:05 UTC ---
I think this was fixed by the patch which fixed PR 51354.  Can you try again?

[Bug rtl-optimization/51366] [cygwin] ICE in maybe_record_trace_start, at dwarf2cfi.c:2244

[gcc@Denis-Excoffier.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51366

--- Comment #4 from Denis Excoffier <gcc@Denis-Excoffier.org> 2011-12-17 21:21:55 UTC ---
This patch, committed on the 6th of December (r182056), must be included in the
snapshot of last Saturday (r182194). I tried with this
gcc-4.7-20111210.tar.bz2, and sorry, the result is the same as before.

[Bug rtl-optimization/51366] [cygwin] ICE in maybe_record_trace_start, at dwarf2cfi.c:2244

[gcc@Denis-Excoffier.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51366

--- Comment #5 from Denis Excoffier <gcc@Denis-Excoffier.org> 2011-12-19 15:31:46 UTC ---
Reduced test case is:

% cat exclude.c
int version;
int zz1(char *);

static void zz2(int flags)
{
 static int initialized = 0;
 char xx[4096];
 if (initialized)
  return;
 initialized = 1;
 zz2(flags | (version ? 2 : 0));
 zz2(flags);
 zz1(xx);
}

void zz3()
{
 zz2(0);
}
% gcc -v -O -c exclude.c
Using built-in specs.
COLLECT_GCC=/tmp/lcl/uxl/gcc/bin/gcc
COLLECT_LTO_WRAPPER=/cygdrive/D/Home/dexcoff1/dexcoff1/cyglcl/uxl/gcc-4.7-201112
10/bin/../libexec/gcc/i686-pc-cygwin/4.7.0/lto-wrapper.exe
Target: i686-pc-cygwin
Configured with: /tmp/lcl/tmp/gcc/gcc-4.7-20111210/configure
--prefix=/tmp/lcl/u
xl/gcc-4.7-20111210 --with-local-prefix=/usr/local/here
--enable-languages=c,c++
 --disable-sjlj-exceptions
Thread model: single
gcc version 4.7.0 20111210 (experimental) (GCC) 
COLLECT_GCC_OPTIONS='-v' '-O' '-c' '-mtune=generic' '-march=pentiumpro'

/cygdrive/D/Home/dexcoff1/dexcoff1/cyglcl/uxl/gcc-4.7-20111210/bin/../libexec/g
cc/i686-pc-cygwin/4.7.0/cc1.exe -quiet -v -iprefix
/cygdrive/D/Home/dexcoff1/dex
coff1/cyglcl/uxl/gcc-4.7-20111210/bin/../lib/gcc/i686-pc-cygwin/4.7.0/
-D__CYGWI
N32__ -D__CYGWIN__ -Dunix -D__unix__ -D__unix -idirafter
/usr/lib/../include/w32
api -idirafter ../../include/w32api exclude.c -quiet -dumpbase exclude.c
-mtune=
generic -march=pentiumpro -auxbase exclude -O -version -o /tmp/ccK5Dvq6.s
GNU C (GCC) version 4.7.0 20111210 (experimental) (i686-pc-cygwin)
        compiled by GNU C version 4.7.0 20111210 (experimental), GMP version
5.0
.2, MPFR version 3.1.0-p4, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
ignoring nonexistent directory
"/cygdrive/D/Home/dexcoff1/dexcoff1/cyglcl/uxl/gc
c-4.7-20111210/bin/../lib/gcc/i686-pc-cygwin/4.7.0/../../../../i686-pc-cygwin/in
clude"
ignoring duplicate directory
"/cygdrive/D/Home/dexcoff1/dexcoff1/cyglcl/uxl/gcc-
4.7-20111210/bin/../lib/gcc/../../lib/gcc/i686-pc-cygwin/4.7.0/include"
ignoring nonexistent directory "/usr/local/here/include"
ignoring duplicate directory
"/cygdrive/D/Home/dexcoff1/dexcoff1/cyglcl/uxl/gcc-
4.7-20111210/bin/../lib/gcc/../../lib/gcc/i686-pc-cygwin/4.7.0/include-fixed"
ignoring nonexistent directory
"/cygdrive/D/Home/dexcoff1/dexcoff1/cyglcl/uxl/gc
c-4.7-20111210/bin/../lib/gcc/../../lib/gcc/i686-pc-cygwin/4.7.0/../../../../i68
6-pc-cygwin/include"
ignoring nonexistent directory "../../include/w32api"
#include "..." search starts here:
#include <...> search starts here:

/cygdrive/D/Home/dexcoff1/dexcoff1/cyglcl/uxl/gcc-4.7-20111210/bin/../lib/gcc/i686-pc-cygwin/4.7.0/include

/cygdrive/D/Home/dexcoff1/dexcoff1/cyglcl/uxl/gcc-4.7-20111210/bin/../lib/gcc/i686-pc-cygwin/4.7.0/include-fixed

/cygdrive/D/Home/dexcoff1/dexcoff1/cyglcl/uxl/gcc-4.7-20111210/bin/../lib/gcc/../../include
 /usr/include
 /usr/lib/../include/w32api
End of search list.
GNU C (GCC) version 4.7.0 20111210 (experimental) (i686-pc-cygwin)
        compiled by GNU C version 4.7.0 20111210 (experimental), GMP version
5.0.2, MPFR version 3.1.0-p4, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: e4de487ff334f86f04bb7cab20aac91a
exclude.c: In function 'zz2':
exclude.c:14:1: internal compiler error: in maybe_record_trace_start, at
dwarf2cfi.c:2244
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
%

[Bug rtl-optimization/51366] [cygwin] ICE in maybe_record_trace_start, at dwarf2cfi.c:2244

[gcc@Denis-Excoffier.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51366

--- Comment #6 from Denis Excoffier <gcc@Denis-Excoffier.org> 2012-01-18 08:45:36 UTC ---
This bug was still present under gcc-4.7-20120107 snapshot, but it
does no longer show up under gcc-4.7-20120114 snapshot. I suppose it has
been corrected. Thank you.

[Bug rtl-optimization/51366] [cygwin] ICE in maybe_record_trace_start, at dwarf2cfi.c:2244

[gcc@Denis-Excoffier.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51366

--- Comment #7 from Denis Excoffier <gcc@Denis-Excoffier.org> ---
The bug is no longer present in GCC 4.8.2 (tested today under Cygwin 1.7.27 XP
32bits).

Please someone to update the WAITING field into RESOLVED (or WORKSFORME etc.).

[Bug rtl-optimization/51366] [cygwin] ICE in maybe_record_trace_start, at dwarf2cfi.c:2244

[rth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51366

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
                 CC|                            |rth at gcc dot gnu.org
         Resolution|---                         |WORKSFORME

--- Comment #8 from Richard Henderson <rth at gcc dot gnu.org> ---
As requested.

[Bug rtl-optimization/51366] [cygwin] ICE in maybe_record_trace_start, at dwarf2cfi.c:2244

[gcc@Denis-Excoffier.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51366

--- Comment #9 from Denis Excoffier <gcc@Denis-Excoffier.org> ---
(In reply to Richard Henderson from comment #8)
Thank you.