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Bug#632510: marked as done (internal compiler error: in trunc_int_for_mode, at explow.c:56)

Your message dated Tue, 20 Sep 2011 12:27:45 +0200
with message-id <4E786AA1.5090904@debian.org>
and subject line fixed in 4.6.1-3
has caused the Debian Bug report #632510,
regarding internal compiler error: in trunc_int_for_mode, at explow.c:56
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
632510: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=632510
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: gcc-4.6
Version: 4.6.1-1
Severity: normal
File: /usr/bin/gcc-4.6

I first encountered this problem in gcc-4.5; it also exists in gcc-4.6, but
not in gcc-4.4.

I have stripped the source file to be as small as possible while still
exhibiting the bug. Attached is the resulting preprocessor output file
(stripped-bug.i).

Here is the command-line invocation:

% gcc-4.6 -v -save-temps -O -maltivec -Wall -c -o stripped-bug.o stripped-bug.c
Using built-in specs.
COLLECT_GCC=gcc-4.6
COLLECT_LTO_WRAPPER=/usr/lib/powerpc-linux-gnu/gcc/powerpc-linux-gnu/4.6.1/lto-wrapper
Target: powerpc-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.6.1-1' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-multiarch --with-multiarch-defaults=powerpc-linux-gnu --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib/powerpc-linux-gnu --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib/powerpc-linux-gnu --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin --enable-objc-gc --enable-secureplt --disable-softfloat --enable-targets=powerpc-linux,powerpc64-linux --with-cpu=default32 --with-long-double-128 --enable-checking=release --build=powerpc-linux-gnu --host=powerpc-linux-gnu --target=powerpc-linux-gnu
Thread model: posix
gcc version 4.6.1 (Debian 4.6.1-1) 
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O' '-maltivec' '-Wall' '-c' '-o' 'stripped-bug.o'
 /usr/lib/powerpc-linux-gnu/gcc/powerpc-linux-gnu/4.6.1/cc1 -E -quiet -v -D__unix__ -D__gnu_linux__ -D__linux__ -Dunix -D__unix -Dlinux -D__linux -Asystem=linux -Asystem=unix -Asystem=posix stripped-bug.c -msecure-plt -maltivec -Wall -O -fpch-preprocess -o stripped-bug.i
ignoring nonexistent directory "/usr/local/include/powerpc-linux-gnu"
ignoring nonexistent directory "/usr/lib/powerpc-linux-gnu/gcc/powerpc-linux-gnu/4.6.1/../../../../../powerpc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/lib/powerpc-linux-gnu/gcc/powerpc-linux-gnu/4.6.1/include
 /usr/local/include
 /usr/lib/powerpc-linux-gnu/gcc/powerpc-linux-gnu/4.6.1/include-fixed
 /usr/include/powerpc-linux-gnu
 /usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O' '-maltivec' '-Wall' '-c' '-o' 'stripped-bug.o'
 /usr/lib/powerpc-linux-gnu/gcc/powerpc-linux-gnu/4.6.1/cc1 -fpreprocessed stripped-bug.i -msecure-plt -quiet -dumpbase stripped-bug.c -maltivec -auxbase-strip stripped-bug.o -O -Wall -version -o stripped-bug.s
GNU C (Debian 4.6.1-1) version 4.6.1 (powerpc-linux-gnu)
	compiled by GNU C version 4.6.1, GMP version 5.0.1, MPFR version 3.0.1-p3, MPC version 0.9
warning: MPFR header version 3.0.1-p3 differs from library version 3.0.0-p3.
warning: MPC header version 0.9 differs from library version 0.8.2.
GGC heuristics: --param ggc-min-expand=45 --param ggc-min-heapsize=28183
GNU C (Debian 4.6.1-1) version 4.6.1 (powerpc-linux-gnu)
	compiled by GNU C version 4.6.1, GMP version 5.0.1, MPFR version 3.0.1-p3, MPC version 0.9
warning: MPFR header version 3.0.1-p3 differs from library version 3.0.0-p3.
warning: MPC header version 0.9 differs from library version 0.8.2.
GGC heuristics: --param ggc-min-expand=45 --param ggc-min-heapsize=28183
Compiler executable checksum: 0a3936a9a0e3014789e4bd021bed0af1
stripped-bug.c: In function ‘foo’:
stripped-bug.c:17:1: internal compiler error: in trunc_int_for_mode, at explow.c:56
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.6/README.Bugs> for instructions.


-- System Information:
Debian Release: 6.0.2
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'stable-updates'), (500, 'unstable')
Architecture: powerpc (ppc64)

Kernel: Linux 2.6.32-5-powerpc64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gcc-4.6 depends on:
ii  binutils              2.21.52.20110606-2 The GNU assembler, linker and bina
ii  cpp-4.6               4.6.1-1            GNU C preprocessor
ii  gcc-4.6-base          4.6.1-1            GCC, the GNU Compiler Collection (
ii  libc6                 2.11.2-10          Embedded GNU C Library: Shared lib
ii  libcloog-ppl0         0.15.9-3           the Chunky Loop Generator (runtime
ii  libgcc1               1:4.6.1-1          GCC support library
ii  libgmp10              2:5.0.1+dfsg-7     Multiprecision arithmetic library
ii  libgmpxx4ldbl         2:5.0.1+dfsg-7     Multiprecision arithmetic library 
ii  libgomp1              4.6.1-1            GCC OpenMP (GOMP) support library
ii  libmpc2               0.8.2-1+b1         multiple precision complex floatin
ii  libmpfr4              3.0.0-2            multiple precision floating-point 
ii  libppl-c4             0.11.2-3           Parma Polyhedra Library (C interfa
ii  libppl9               0.11.2-3           Parma Polyhedra Library (runtime l
ii  zlib1g                1:1.2.3.4.dfsg-3   compression library - runtime

Versions of packages gcc-4.6 recommends:
ii  libc6-dev                     2.11.2-10  Embedded GNU C Library: Developmen

Versions of packages gcc-4.6 suggests:
pn  binutils-gold                 <none>     (no description available)
pn  gcc-4.6-doc                   <none>     (no description available)
pn  gcc-4.6-locales               <none>     (no description available)
ii  gcc-4.6-multilib              4.6.1-1    GNU C compiler (multilib files)
pn  libgcc1-dbg                   <none>     (no description available)
pn  libgomp1-dbg                  <none>     (no description available)
pn  libmudflap0-4.6-dev           <none>     (no description available)
pn  libmudflap0-dbg               <none>     (no description available)
pn  libquadmath-dbg               <none>     (no description available)

-- no debconf information

# 1 "stripped-bug.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "stripped-bug.c"
int foo(void)
{
  __attribute__((altivec(vector__))) unsigned a, b, c;
  unsigned k = 1;

  a = (__attribute__((altivec(vector__))) unsigned) { 0, 0, 0, 1 };
  b = c = (__attribute__((altivec(vector__))) unsigned) { 0, 0, 0, 0 };

  a = __builtin_vec_add(a, __builtin_vec_splats(k));
  b = __builtin_vec_add(b, a);
  c = __builtin_vec_sel(c, a, b);

  if (__builtin_vec_vcmpeq_p(1, b, c))
    return 1;

  return 0;
}

--- End Message ---
--- Begin Message --- 
Version: 4.6.1-3

--- End Message ---
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