[Bug c/27578] New: ICE during build of libstdc++-v3

[Bug c/27578] New: ICE during build of libstdc++-v3

[edmar at freescale dot com]

This problem started somewhere between april 17, and april 20. Afftects 4.2
only.

Here is the -v output of the compilation terminated with ICE:

/local/gnu_toolchain/build_area/obj_gcc-trunk_7450/./gcc/xgcc -shared-libgcc
-B/local/gnu_toolchain/build_area/obj_gcc-trunk_7450/./gcc -nostdinc++
-L/local/gnu_toolchain/build_area/obj_gcc-trunk_7450/powerpc-unknown-linux-gnualtivec/libstdc++-v3/src
-L/local/gnu_toolchain/build_area/obj_gcc-trunk_7450/powerpc-unknown-linux-gnualtivec/libstdc++-v3/src/.libs
-B/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/powerpc-unknown-linux-gnualtivec/bin/
-B/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/powerpc-unknown-linux-gnualtivec/lib/
-isystem
/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/powerpc-unknown-linux-gnualtivec/include
-isystem
/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/powerpc-unknown-linux-gnualtivec/sys-include
-I/local/gnu_toolchain/build_area/obj_gcc-trunk_7450/powerpc-unknown-linux-gnualtivec/libstdc++-v3/include/powerpc-unknown-linux-gnualtivec
-I/local/gnu_toolchain/build_area/obj_gcc-trunk_7450/powerpc-unknown-linux-gnualtivec/libstdc++-v3/include
-I/local/gnu_toolchain/build_area/gcc-trunk/libstdc++-v3/libsupc++
-fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual
-fdiagnostics-show-location=once -ffunction-sections -fdata-sections -g -O2
-D_GNU_SOURCE -c basic_file.cc  -fPIC -DPIC -o .libs/basic_file.o -v
--save-temps
Reading specs from
/local/gnu_toolchain/build_area/obj_gcc-trunk_7450/./gcc/specs
Target: powerpc-unknown-linux-gnualtivec
Configured with: ../gcc-trunk/configure
--prefix=/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450
--with-local-prefix=/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450
--enable-languages=c,c++ --enable-threads
--target=powerpc-unknown-linux-gnualtivec --disable-linux-futex
Thread model: posix
gcc version 4.2.0 20060511 (experimental)
 /local/gnu_toolchain/build_area/obj_gcc-trunk_7450/./gcc/cc1plus -E -quiet
-nostdinc++ -v
-I/local/gnu_toolchain/build_area/obj_gcc-trunk_7450/powerpc-unknown-linux-gnualtivec/libstdc++-v3/include/powerpc-unknown-linux-gnualtivec
-I/local/gnu_toolchain/build_area/obj_gcc-trunk_7450/powerpc-unknown-linux-gnualtivec/libstdc++-v3/include
-I/local/gnu_toolchain/build_area/gcc-trunk/libstdc++-v3/libsupc++ -iprefix
/temp/gnu_toolchain/build_area/obj_gcc-trunk_7450/gcc/../lib/gcc/powerpc-unknown-linux-gnualtivec/4.2.0/
-isystem /local/gnu_toolchain/build_area/obj_gcc-trunk_7450/./gcc/include
-D_GNU_SOURCE -D__unix__ -D__gnu_linux__ -D__linux__ -Dunix -D__unix -Dlinux
-D__linux -Asystem=linux -Asystem=unix -Asystem=posix -D_GNU_SOURCE -DPIC
-isystem
/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/powerpc-unknown-linux-gnualtivec/include
-isystem
/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/powerpc-unknown-linux-gnualtivec/sys-include
basic_file.cc -Wall -Wextra -Wwrite-strings -Wcast-qual -fno-implicit-templates
-fdiagnostics-show-location=once -ffunction-sections -fdata-sections -fPIC
-fworking-directory -O2 -fpch-preprocess -o basic_file.ii
ignoring nonexistent directory
"/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/powerpc-unknown-linux-gnualtivec/include"
ignoring nonexistent directory
"/temp/gnu_toolchain/build_area/obj_gcc-trunk_7450/gcc/../lib/gcc/powerpc-unknown-linux-gnualtivec/4.2.0/include"
ignoring nonexistent directory
"/temp/gnu_toolchain/build_area/obj_gcc-trunk_7450/gcc/../lib/gcc/powerpc-unknown-linux-gnualtivec/4.2.0/../../../../powerpc-unknown-linux-gnualtivec/sys-include"
ignoring nonexistent directory
"/temp/gnu_toolchain/build_area/obj_gcc-trunk_7450/gcc/../lib/gcc/powerpc-unknown-linux-gnualtivec/4.2.0/../../../../powerpc-unknown-linux-gnualtivec/include"
ignoring duplicate directory
"/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/lib/gcc/powerpc-unknown-linux-gnualtivec/4.2.0/../../../../powerpc-unknown-linux-gnualtivec/sys-include"
ignoring nonexistent directory
"/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/lib/gcc/powerpc-unknown-linux-gnualtivec/4.2.0/../../../../powerpc-unknown-linux-gnualtivec/include"
#include "..." search starts here:
#include <...> search starts here:

/local/gnu_toolchain/build_area/obj_gcc-trunk_7450/powerpc-unknown-linux-gnualtivec/libstdc++-v3/include/powerpc-unknown-linux-gnualtivec

/local/gnu_toolchain/build_area/obj_gcc-trunk_7450/powerpc-unknown-linux-gnualtivec/libstdc++-v3/include
 /local/gnu_toolchain/build_area/gcc-trunk/libstdc++-v3/libsupc++
 /local/gnu_toolchain/build_area/obj_gcc-trunk_7450/./gcc/include

/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/powerpc-unknown-linux-gnualtivec/sys-include

/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/lib/gcc/powerpc-unknown-linux-gnualtivec/4.2.0/include
End of search list.
 /local/gnu_toolchain/build_area/obj_gcc-trunk_7450/./gcc/cc1plus
-fpreprocessed basic_file.ii -quiet -dumpbase basic_file.cc -auxbase-strip
.libs/basic_file.o -g -O2 -Wall -Wextra -Wwrite-strings -Wcast-qual -version
-fno-implicit-templates -fdiagnostics-show-location=once -ffunction-sections
-fdata-sections -fPIC -o basic_file.s
GNU C++ version 4.2.0 20060511 (experimental)
(powerpc-unknown-linux-gnualtivec)
        compiled by GNU C version 3.4.3.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: d35c3de0261cf05d5cbea100862a0fee
/local/gnu_toolchain/install_area/gcc-trunk-20060511-7450/powerpc-unknown-linux-gnualtivec/sys-include/sys/uio.h:40:
internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: ICE during build of libstdc++-v3
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: edmar at freescale dot com
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: powerpc-unknown-linux-gnualtivec


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578

[Bug c/27578] ICE during build of libstdc++-v3

[edmar at freescale dot com]

------- Comment #1 from edmar at freescale dot com  2006-05-12 18:42 -------
Created an attachment (id=11449)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11449&action=view)
File generated with --save-temps

This is the .ii file that causes ICE.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578

[Bug c++/27578] ICE during build of libstdc++-v3

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2006-05-12 18:52 -------
I can also reproduce this on a cross compiler to powerpc-linux-gnu.  and it is
a front-end issue.  Reducing.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|middle-end                  |c++
 GCC target triplet|powerpc-unknown-linux-      |powerpc-unknown-linux-gnu
                   |gnualtivec                  |
           Keywords|                            |build


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578

[Bug c++/27578] ICE during build of libstdc++-v3

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2006-05-12 18:59 -------
extern ssize_t readv (int __fd, __const struct iovec
*__attribute__((altivec(vector__))), int __count);

That is invalid code.

Hmm, I wonder if someone uses __vector somewhere.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|ice-on-valid-code           |ice-on-invalid-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578

[Bug c++/27578] ICE with altivec(vector__) on a pointer in a function prototype

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2006-05-12 19:08 -------
(In reply to comment #3)
Reduced testcase:
void readv (int *__attribute__((altivec(vector__))) );


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-05-12 19:08:15
               date|                            |
            Summary|ICE during build of         |ICE with altivec(vector__)
                   |libstdc++-v3                |on a pointer in a function
                   |                            |prototype


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578

[Bug c++/27578] [4.2 Regression] ICE with attribute on a pointer in a function prototype

[pinskia at gcc dot gnu dot org]

------- Comment #5 from pinskia at gcc dot gnu dot org  2006-05-12 19:13 -------
Actually this is any attribute on the pointer in the function prototype:
void readv (int *__attribute__((aligned(16) )) );


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 GCC target triplet|powerpc-*-linux-gnu         |
           Keywords|                            |ice-on-valid-code
            Summary|ICE with altivec(vector__)  |[4.2 Regression] ICE with
                   |on a pointer in a function  |attribute on a pointer in a
                   |prototype                   |function prototype
   Target Milestone|---                         |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578

[Bug c++/27578] [4.2 Regression] ICE with attribute on a pointer in a function prototype

[janis at gcc dot gnu dot org]

------- Comment #6 from janis at gcc dot gnu dot org  2006-05-12 20:38 -------
A regression hunt on powerpc-linux using the testcase from comment #5
identified this patch:

    http://gcc.gnu.org/viewcvs?view=rev&rev=113081

    r113081 | mmitchel | 2006-04-19 16:58:23 +0000 (Wed, 19 Apr 2006)


-- 

janis at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mmitchel at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578

[Bug c++/27578] [4.2 Regression] ICE with attribute on a pointer in a function prototype

[pinskia at gcc dot gnu dot org]

------- Comment #7 from pinskia at gcc dot gnu dot org  2006-05-17 21:00 -------
This looks related to PR 27648 though that one was in 4.0.3 also.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |27648


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578

[Bug c++/27578] [4.2 Regression] ICE with attribute on a pointer in a function prototype

[mmitchel at gcc dot gnu dot org]

-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578

[Bug c++/27578] [4.2 Regression] ICE with attribute on a pointer in a function prototype

[mmitchel at gcc dot gnu dot org]

------- Comment #8 from mmitchel at gcc dot gnu dot org  2006-06-04 19:56 -------
Upon review, I see that this applies to any attribute in the function; marking
as P1.


-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P2                          |P1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578

[Bug c++/27578] [4.2 Regression] ICE with attribute on a pointer in a function prototype

[jason at gcc dot gnu dot org]

------- Comment #9 from jason at gcc dot gnu dot org  2006-06-26 22:21 -------
Is this still broken? I can't reproduce it.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578

[Bug c++/27578] [4.2 Regression] ICE with attribute on a pointer in a function prototype

[pinskia at gcc dot gnu dot org]

------- Comment #10 from pinskia at gcc dot gnu dot org  2006-06-26 22:24 -------
Fixed by the patch which fixed PR 27648.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27578