[Bug c++/42803] New: [(probably) regression gcc 4.4 on 32bit] c++ compilation hang

[Bug c++/42803] New: [(probably) regression gcc 4.4 on 32bit] c++ compilation hang

[l dot jirkovsky at gmail dot com]

Compilation hangs at the following file for several hours (then I stopped it).

According to http://www.rawtherapee.com/forum/viewtopic.php?t=1719 this seems
to be a regression in gcc 4.4 which is present on multiple GNU/Linux
distributions, all 32bit. 64bit doesn't seem to be affected.

Another discussion about this topic is hold in
http://aur.archlinux.org/packages.php?ID=11186

gcc 4.3 is said to work (I didn't tested it myself because compilation of gcc
takes several hours on my 32bit machine).

OS
--
Archlinux current

Tested gcc versions
--------------------

Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../configure --prefix=/usr --enable-shared
--enable-languages=c,c++,fortran,objc,obj-c++,ada --enable-threads=posix
--mandir=/usr/share/man --infodir=/usr/share/info --enable-__cxa_atexit
--disable-multilib --libdir=/usr/lib --libexecdir=/usr/lib --enable-clocale=gnu
--disable-libstdcxx-pch --with-tune=generic
Thread model: posix
gcc version 4.4.2 20091208 (prerelease) (GCC)

Using built-in specs.
COLLECT_GCC=gcc-4.5
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-pc-linux-gnu/4.5.0/lto-wrapper
Target: i686-pc-linux-gnu
Configured with: ../configure --prefix=/usr --enable-languages=c,c++
--enable-shared --enable-threads=posix --enable-__cxa_atexit
--enable-clocale=gnu --enable-lto --enable-gnu-unique-object --disable-multilib
--disable-libstdcxx-pch --with-tune=generic --with-system-zlib --with-ppl
--with-cloog --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man
--infodir=/usr/share/info --disable-werror --enable-checking=release
--program-suffix=-4.5 --enable-version-specific-runtime-libs
Thread model: posix
gcc version 4.5.0 20100114 (experimental) (GCC)


-- 
           Summary: [(probably) regression gcc 4.4 on 32bit] c++ compilation
                    hang
           Product: gcc
           Version: 4.4.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: l dot jirkovsky at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42803

[Bug c++/42803] [(probably) regression gcc 4.4 on 32bit] c++ compilation hang

[l dot jirkovsky at gmail dot com]

------- Comment #1 from l dot jirkovsky at gmail dot com  2010-01-19 13:45 -------
Created an attachment (id=19654)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19654&action=view)
Compilation hangs on this file


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42803

[Bug c++/42803] [4.4/4.5 Regression] c++ compilation hang

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2010-01-19 14:00 -------
Confirmed.

Backtrace:

#0  0x0000000000e50900 in tree_operand_length (node=0x7ffff2201d58)
    at /space/rguenther/src/svn/trunk/gcc/tree.h:5340
#1  0x0000000000e5c983 in initializer_constant_valid_p (value=0x7ffff2201d58, 
    endtype=0x7ffff7ee7540) at /space/rguenther/src/svn/trunk/gcc/varasm.c:4336
#2  0x0000000000e5c90d in initializer_constant_valid_p (value=0x7ffff2201e38, 
    endtype=0x7ffff7ee7540) at /space/rguenther/src/svn/trunk/gcc/varasm.c:4335
#3  0x0000000000e5b328 in narrowing_initializer_constant_valid_p (
    value=0x7ffff2201f18, endtype=0x7ffff7ee7540)
    at /space/rguenther/src/svn/trunk/gcc/varasm.c:4144
#4  0x0000000000e5ca2e in initializer_constant_valid_p (value=0x7ffff2201f18, 
    endtype=0x7ffff7ee7540) at /space/rguenther/src/svn/trunk/gcc/varasm.c:4346
#5  0x0000000000e5b328 in narrowing_initializer_constant_valid_p (
    value=0x7ffff2202000, endtype=0x7ffff7ee7540)
    at /space/rguenther/src/svn/trunk/gcc/varasm.c:4144
#6  0x0000000000e5ca2e in initializer_constant_valid_p (value=0x7ffff2202000, 
    endtype=0x7ffff7ee7540) at /space/rguenther/src/svn/trunk/gcc/varasm.c:4346
#7  0x0000000000e5b328 in narrowing_initializer_constant_valid_p (
    value=0x7ffff2202150, endtype=0x7ffff7ee7540)
    at /space/rguenther/src/svn/trunk/gcc/varasm.c:4144
...
#45 0x0000000000e5c272 in initializer_constant_valid_p (value=0x7ffff2200ae0, 
    endtype=0x7ffff7ee7540) at /space/rguenther/src/svn/trunk/gcc/varasm.c:4285
4285              return initializer_constant_valid_p (src, endtype);
#46 0x00000000005ba410 in store_init_value (decl=0x7ffff2177320, 
    init=0x7ffff2203850, flags=0)
    at /space/rguenther/src/svn/trunk/gcc/cp/typeck2.c:734
734       if (value != error_mark_node

(gdb) call debug_generic_expr (value)
(unsigned int) ((((((((((((((((((((((((((((((((int) *(*(src + ((unsigned int) i
+ 4) * 4) + ((unsigned int) j + 1) * 2) * *(ec + ((unsigned int) ((int) *(*(src
+ ((unsigned int) i + 4) * 4) + ((unsigned int) j + 1) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4) + (int) *(*(src + ((unsigned int) i + 4) * 4) + (unsigned
int) ((unsigned int) j * 2)) * *(ec + ((unsigned int) ((int) *(*(src +
((unsigned int) i + 4) * 4) + (unsigned int) ((unsigned int) j * 2)) - (int)
*(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned
int) j * 2))) + 65536) * 4)) + ((int) *(*(src + ((unsigned int) i + 3) * 4) +
((unsigned int) j + 3) * 2) * *(ec + ((unsigned int) ((int) *(*(src +
((unsigned int) i + 3) * 4) + ((unsigned int) j + 3) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4) + (int) *(*(src + ((unsigned int) i + 4) * 4) + ((unsigned
int) j + -1) * 2) * *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i +
4) * 4) + ((unsigned int) j + -1) * 2) - (int) *(*(src + (unsigned int)
((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) *
4))) + (((int) *(*(src + ((unsigned int) i + 3) * 4) + ((unsigned int) j + 1) *
2) * *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i + 3) * 4) +
((unsigned int) j + 1) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i
* 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 3 + ((int)
*(*(src + ((unsigned int) i + 3) * 4) + ((unsigned int) j + 2) * 2) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + 3) * 4) + ((unsigned int)
j + 2) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
(unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 2)) + (((int) *(*(src
+ ((unsigned int) i + 3) * 4) + ((unsigned int) j + -1) * 2) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + 3) * 4) + ((unsigned int)
j + -1) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
(unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 3 + ((int) *(*(src +
((unsigned int) i + 3) * 4) + (unsigned int) ((unsigned int) j * 2)) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + 3) * 4) + (unsigned int)
((unsigned int) j * 2)) - (int) *(*(src + (unsigned int) ((unsigned int) i *
4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 4)) + ((int)
*(*(src + ((unsigned int) i + 3) * 4) + ((unsigned int) j + -3) * 2) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + 3) * 4) + ((unsigned int)
j + -3) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
(unsigned int) ((unsigned int) j * 2))) + 65536) * 4) + ((int) *(*(src +
((unsigned int) i + 3) * 4) + ((unsigned int) j + -2) * 2) * *(ec + ((unsigned
int) ((int) *(*(src + ((unsigned int) i + 3) * 4) + ((unsigned int) j + -2) *
2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int)
((unsigned int) j * 2))) + 65536) * 4)) * 2)) + (((int) *(*(src + ((unsigned
int) i + 2) * 4) + ((unsigned int) j + 2) * 2) * *(ec + ((unsigned int) ((int)
*(*(src + ((unsigned int) i + 2) * 4) + ((unsigned int) j + 2) * 2) - (int)
*(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned
int) j * 2))) + 65536) * 4)) * 5 + ((int) *(*(src + ((unsigned int) i + 2) * 4)
+ ((unsigned int) j + 3) * 2) * *(ec + ((unsigned int) ((int) *(*(src +
((unsigned int) i + 2) * 4) + ((unsigned int) j + 3) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4)) * 2)) + (((int) *(*(src + ((unsigned int) i + 2) * 4) +
(unsigned int) ((unsigned int) j * 2)) * *(ec + ((unsigned int) ((int) *(*(src
+ ((unsigned int) i + 2) * 4) + (unsigned int) ((unsigned int) j * 2)) - (int)
*(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned
int) j * 2))) + 65536) * 4)) * 10 + ((int) *(*(src + ((unsigned int) i + 2) *
4) + ((unsigned int) j + 1) * 2) * *(ec + ((unsigned int) ((int) *(*(src +
((unsigned int) i + 2) * 4) + ((unsigned int) j + 1) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4)) * 9)) + (((int) *(*(src + ((unsigned int) i + 2) * 4) +
((unsigned int) j + -2) * 2) * *(ec + ((unsigned int) ((int) *(*(src +
((unsigned int) i + 2) * 4) + ((unsigned int) j + -2) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4)) * 5 + ((int) *(*(src + ((unsigned int) i + 2) * 4) +
((unsigned int) j + -1) * 2) * *(ec + ((unsigned int) ((int) *(*(src +
((unsigned int) i + 2) * 4) + ((unsigned int) j + -1) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4)) * 9)) + ((int) *(*(src + ((unsigned int) i + 1) * 4) +
((unsigned int) j + 4) * 2) * *(ec + ((unsigned int) ((int) *(*(src +
((unsigned int) i + 1) * 4) + ((unsigned int) j + 4) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4) + ((int) *(*(src + ((unsigned int) i + 2) * 4) + ((unsigned
int) j + -3) * 2) * *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i +
2) * 4) + ((unsigned int) j + -3) * 2) - (int) *(*(src + (unsigned int)
((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) *
4)) * 2)) + (((int) *(*(src + ((unsigned int) i + 1) * 4) + ((unsigned int) j +
2) * 2) * *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i + 1) * 4) +
((unsigned int) j + 2) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i
* 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 9 + ((int)
*(*(src + ((unsigned int) i + 1) * 4) + ((unsigned int) j + 3) * 2) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + 1) * 4) + ((unsigned int)
j + 3) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
(unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 3)) + (((int) *(*(src
+ ((unsigned int) i + 1) * 4) + (unsigned int) ((unsigned int) j * 2)) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + 1) * 4) + (unsigned int)
((unsigned int) j * 2)) - (int) *(*(src + (unsigned int) ((unsigned int) i *
4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 19 + ((int)
*(*(src + ((unsigned int) i + 1) * 4) + ((unsigned int) j + 1) * 2) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + 1) *4) + ((unsigned int) j
+ 1) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned
int) ((unsigned int) j * 2))) + 65536) * 4)) * 15)) + (((int) *(*(src +
((unsigned int) i + 1) * 4) + ((unsigned int) j + -2) * 2) * *(ec + ((unsigned
int) ((int) *(*(src + ((unsigned int) i + 1) * 4) + ((unsigned int) j + -2) *
2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int)
((unsigned int) j * 2))) + 65536) * 4)) * 9 + ((int) *(*(src + ((unsigned int)
i + 1) * 4) + ((unsigned int) j + -1) * 2) * *(ec + ((unsigned int) ((int)
*(*(src + ((unsigned int) i + 1) * 4) + ((unsigned int) j + -1) * 2) - (int)
*(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned
int) j * 2))) + 65536) * 4)) * 15)) + ((int) *(*(src + ((unsigned int) i + 1) *
4) + ((unsigned int) j + -4) * 2) * *(ec + ((unsigned int) ((int) *(*(src +
((unsigned int) i + 1) * 4) + ((unsigned int) j + -4) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4) + ((int) *(*(src + ((unsigned int) i + 1) * 4) + ((unsigned
int) j + -3) * 2) * *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i +
1) * 4) + ((unsigned int) j + -3) * 2) - (int) *(*(src + (unsigned int)
((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) *
4)) * 3)) + (((int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
((unsigned int) j + 3) * 2) * *(ec + ((unsigned int) ((int) *(*(src + (unsigned
int) ((unsigned int) i * 4)) + ((unsigned int) j + 3) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4)) * 4 + (int) *(*(src + (unsigned int) ((unsigned int) i *
4)) + ((unsigned int) j + 4) * 2) * *(ec + ((unsigned int) ((int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + ((unsigned int) j + 4) * 2) - (int)
*(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned
int) j * 2))) + 65536) * 4))) + (((int) *(*(src + (unsigned int) ((unsigned
int) i * 4)) + ((unsigned int) j + 1) * 2) * *(ec + ((unsigned int) ((int)
*(*(src + (unsigned int) ((unsigned int) i * 4)) + ((unsigned int) j + 1) * 2)
- (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int)
((unsigned int) j * 2))) + 65536) * 4)) * 19 + ((int) *(*(src + (unsigned int)
((unsigned int) i * 4)) + ((unsigned int) j + 2) * 2) * *(ec + ((unsigned int)
((int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + ((unsigned int) j +
2) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned
int) ((unsigned int) j * 2))) + 65536) * 4)) * 10)) + (((int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + ((unsigned int) j + -1) * 2) * *(ec +
((unsigned int) ((int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
((unsigned in) j + -1) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i
* 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 19 + ((int)
*(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned
int) j * 2)) * *(ec + 262144)) * 23)) + (((int) *(*(src + (unsigned int)
((unsigned int) i * 4)) + ((unsigned int) j + -3) * 2) * *(ec + ((unsigned int)
((int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + ((unsigned int) j +
-3) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned
int) ((unsigned int) j * 2))) + 65536) * 4)) * 4 + ((int) *(*(src + (unsigned
int) ((unsigned int) i * 4)) + ((unsigned int) j + -2) * 2) * *(ec + ((unsigned
int) ((int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + ((unsigned int)
j + -2) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
(unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 10)) + ((int) *(*(src
+ ((unsigned int) i + -1) * 4) + ((unsigned int) j + 4) * 2) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + -1) * 4) + ((unsigned int)
j + 4) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
(unsigned int) ((unsigned int) j * 2))) + 65536) * 4) + (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + ((unsigned int) j + -4) * 2) * *(ec +
((unsigned int) ((int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
((unsigned int) j + -4) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i
* 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4))) + (((int)
*(*(src + ((unsigned int) i + -1) * 4) + ((unsigned int) j + 2) * 2) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + -1) * 4) + ((unsigned int)
j + 2) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
(unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 9 + ((int) *(*(src +
((unsigned int) i + -1) * 4) + ((unsigned int) j + 3) * 2) * *(ec + ((unsigned
int) ((int) *(*(src + ((unsigned int) i + -1) * 4) + ((unsigned int) j + 3) *
2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int)
((unsigned int) j * 2))) + 65536) * 4)) * 3)) + (((int) *(*(src + ((unsigned
int) i + -1) * 4) + (unsigned int) ((unsigned int) j * 2)) * *(ec + ((unsigned
int) ((int) *(*(src + ((unsigned int) i + -1) * 4) + (unsigned int) ((unsigned
int) j * 2)) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
(unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 19 + ((int) *(*(src +
((unsigned int) i + -1) * 4) + ((unsigned int) j + 1) * 2) * *(ec + ((unsigned
int) ((int) *(*(src + ((unsigned int) i + -1) * 4) + ((unsigned int) j + 1) *
2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int)
((unsigned int) j * 2))) + 65536) * 4)) * 15)) + (((int) *(*(src + ((unsigned
int) i + -1) * 4) + ((unsigned int) j + -2) * 2) * *(ec + ((unsigned int)
((int) *(*(src + ((unsigned int) i + -1) * 4) + ((unsigned int) j + -2) * 2) -
(int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int)
((unsigned int) j * 2))) + 65536) * 4)) * 9 + ((int) *(*(src + ((unsigned int)
i + -1) * 4) + ((unsigned int) j + -1) * 2) * *(ec + ((unsigned int) ((int)
*(*(src + ((unsigned int) i + -1) * 4) + ((unsigned int) j + -1) * 2) - (int)
*(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned
int) j * 2))) + 65536) * 4)) * 15)) + ((int) *(*(src + ((unsigned int) i + -1)
* 4) + ((unsigned int) j + -4) * 2) * *(ec + ((unsigned int) ((int) *(*(src +
((unsigned int) i + -1) * 4) + ((unsigned int) j + -4) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4) + ((int) *(*(src + ((unsigned int) i + -1) * 4) + ((unsigned
int) j + -3) * 2) * *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i +
-1) * 4) + ((unsigned int) j + -3) * 2) - (int) *(*(src + (unsigned int)
((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) *
4)) * 3)) + (((int) *(*(src + ((unsigned int) i + -2) * 4) + ((unsigned int) j
+ 2) * 2) * *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i + -2) *
4) + ((unsigned int) j + 2) * 2) - (int) *(*(src + (unsigned int) ((unsigned
int) i * 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 5 +
((int) *(*(src + ((unsigned int) i + -2) * 4) + ((unsigned int) j + 3) * 2) *
*(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i + -2) * 4) +
((unsigned int) j + 3) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i
* 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 2)) + (((int)
*(*(src + ((unsigned int) i + -2) * 4) + (unsigned int) ((unsigned int) j * 2))
* *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i + -2) * 4) +
(unsigned int) ((unsigned int) j * 2)) - (int) *(*(src + (unsigned int)
((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) *
4)) * 10 + ((int) *(*(src + ((unsigned int) i + -2) * 4) + ((unsigned int) j +
1) * 2) * *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i + -2) * 4)
+ ((unsigned int) j + 1) * 2) - (int) *(*(src + (unsigned int) ((unsigned int)
i * 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 9)) +
(((int) *(*(src + ((unsigned int) i + -2) * 4) + ((unsigned int) j + -2) * 2) *
*(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i + -2) * 4) +
((unsigned int) j + -2) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i
* 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 5 + ((int)
*(*(src + ((unsigned int) i + -2) * 4) + ((unsigned int) j + -1) * 2) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + -2) * 4) + ((unsigned int)
j + -1) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
(unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 9)) + ((int) *(*(src +
((unsigned int) i + -3) * 4) + ((unsigned int) j + 3) * 2) * *(ec + ((unsigned
int) ((int) *(*(src + ((unsigned int) i + -3) * 4) + ((unsigned int) j + 3) *
2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int)
((unsigned int) j * 2))) + 65536) * 4) + ((int) *(*(src + ((unsigned int) i +
-2) * 4) + ((unsigned int) j + -3) * 2) * *(ec + ((unsigned int) ((int) *(*(src
+ ((unsigned int) i + -2) * 4) + ((unsigned int) j + -3) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4)) * 2)) + (((int) *(*(src + ((unsigned int) i + -3) * 4) +
((unsigned int)j + 1) * 2) * *(ec + ((unsigned int) ((int) *(*(src + ((unsigned
int) i + -3) * 4) + ((unsigned int) j + 1) * 2) - (int) *(*(src + (unsigned
int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536)
* 4)) * 3 + ((int) *(*(src + ((unsigned int) i + -3) * 4) + ((unsigned int) j +
2) * 2) * *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i + -3) * 4)
+ ((unsigned int) j + 2) * 2) - (int) *(*(src + (unsigned int) ((unsigned int)
i * 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 2)) +
(((int) *(*(src + ((unsigned int) i + -3) * 4) + ((unsigned int) j + -1) * 2) *
*(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i + -3) * 4) +
((unsigned int) j + -1) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i
* 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 3 + ((int)
*(*(src + ((unsigned int) i + -3) * 4) + (unsigned int) ((unsigned int) j * 2))
* *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i + -3) * 4) +
(unsigned int) ((unsigned int) j * 2)) - (int) *(*(src + (unsigned int)
((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) *
4)) * 4)) + ((int) *(*(src + ((unsigned int) i + -3) * 4) + ((unsigned int) j +
-3) * 2) * *(ec + ((unsigned int) ((int) *(*(src + ((unsigned int) i + -3) * 4)
+ ((unsigned int) j + -3) * 2) - (int) *(*(src + (unsigned int) ((unsigned int)
i * 4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4) + ((int)
*(*(src + ((unsigned int) i + -3) * 4) + ((unsigned int) j + -2) * 2) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + -3) * 4) + ((unsigned int)
j + -2) * 2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) +
(unsigned int) ((unsigned int) j * 2))) + 65536) * 4)) * 2)) + ((int) *(*(src +
((unsigned int) i + -4) * 4) + (unsigned int) ((unsigned int) j * 2)) * *(ec +
((unsigned int) ((int) *(*(src + ((unsigned int) i + -4) * 4) + (unsigned int)
((unsigned int) j * 2)) - (int) *(*(src + (unsigned int) ((unsigned int) i *
4)) + (unsigned int) ((unsigned int) j * 2))) + 65536) * 4) + (int) *(*(src +
((unsigned int) i + -4) * 4) + ((unsigned int) j + 1) * 2) * *(ec + ((unsigned
int) ((int) *(*(src + ((unsigned int) i + -4) * 4) + ((unsigned int) j + 1) *
2) - (int) *(*(src + (unsigned int) ((unsigned int) i * 4)) + (unsigned int)
((unsigned int) j * 2))) + 65536) * 4))) + (int) *(*(src + ((unsigned int) i +
-4) * 4) + ((unsigned int) j + -1) * 2) * *(ec + ((unsigned int) ((int) *(*(src
+ ((unsigned int) i + -4) * 4) + ((unsigned int) j + -1) * 2) - (int) *(*(src +
(unsigned int) ((unsigned int) i * 4)) + (unsigned int) ((unsigned int) j *
2))) + 65536) * 4))

so you probably just need to keep waiting a bit ...


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
 GCC target triplet|                            |i?86-*-*
           Keywords|                            |compile-time-hog
      Known to fail|                            |4.4.0 4.4.3 4.5.0
      Known to work|                            |4.3.4
   Last reconfirmed|0000-00-00 00:00:00         |2010-01-19 14:00:13
               date|                            |
            Summary|[(probably) regression gcc  |[4.4/4.5 Regression] c++
                   |4.4 on 32bit] c++           |compilation hang
                   |compilation hang            |
   Target Milestone|---                         |4.4.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42803

[Bug c++/42803] [4.4/4.5 Regression] c++ compilation hang

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2010-01-19 14:07 -------
I have a patch.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2010-01-19 14:00:13         |2010-01-19 14:07:19
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42803

[Bug middle-end/42803] [4.4/4.5 Regression] c++ compilation hang

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2010-01-19 14:24 -------
Caused by r144394

2009-02-23  Jason Merrill  <jason@redhat.com>

       PR c++/38880
       * varasm.c (initializer_constant_valid_p) [PLUS_EXPR]: Check
       narrowing_initializer_constant_valid_p.
       (narrowing_initializer_constant_valid_p): Don't return 
       null_pointer_node for adding a pointer to itself.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42803

[Bug middle-end/42803] [4.4/4.5 Regression] c++ compilation hang

[jakub at gcc dot gnu dot org]

------- Comment #5 from jakub at gcc dot gnu dot org  2010-01-19 16:57 -------
Created an attachment (id=19657)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19657&action=view)
gcc45-pr42803.patch

Alternative patch, which should avoid exponential behavior in all cases (even
when there are casts that narrowing_initializer_constant_valid_p skips).
POINTER_PLUS_EXPR/PLUS_EXPR/MINUS_EXPR/CONSTRUCTOR seem to be the only ones
where initializer_constant_valid_p recurses more than once, so I think it is
enough to cache those.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42803

[Bug middle-end/42803] [4.4/4.5 Regression] c++ compilation hang

[l dot jirkovsky at gmail dot com]

------- Comment #6 from l dot jirkovsky at gmail dot com  2010-01-19 19:56 -------
I've recompiled gcc 4.5 snapshot with the patch included. The file
bilateral2.ii compiles perfectly.

Thank you, you're doing a great job.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42803

[Bug middle-end/42803] [4.4/4.5 Regression] c++ compilation hang

[jakub at gcc dot gnu dot org]

------- Comment #7 from jakub at gcc dot gnu dot org  2010-01-20 11:08 -------
Subject: Bug 42803

Author: jakub
Date: Wed Jan 20 11:08:24 2010
New Revision: 156069

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=156069
Log:
        PR middle-end/42803
        * varasm.c (narrowing_initializer_constant_valid_p): Add CACHE
        argument, call initializer_constant_valid_p_1 instead of
        initializer_constant_valid_p, pass CACHE to it, return NULL
        immediately if first call returns NULL.
        (initializer_constant_valid_p_1): New function.
        (initializer_constant_valid_p): Use it.

        * g++.dg/parse/limits-initializer1.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/parse/limits-initializer1.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/varasm.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42803

[Bug middle-end/42803] [4.4/4.5 Regression] c++ compilation hang

[jakub at gcc dot gnu dot org]

------- Comment #8 from jakub at gcc dot gnu dot org  2010-01-20 11:28 -------
Subject: Bug 42803

Author: jakub
Date: Wed Jan 20 11:27:49 2010
New Revision: 156070

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=156070
Log:
        PR middle-end/42803
        * varasm.c (narrowing_initializer_constant_valid_p): Add CACHE
        argument, call initializer_constant_valid_p_1 instead of
        initializer_constant_valid_p, pass CACHE to it, return NULL
        immediately if first call returns NULL.
        (initializer_constant_valid_p_1): New function.
        (initializer_constant_valid_p): Use it.

        * g++.dg/parse/limits-initializer1.C: New test.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/parse/limits-initializer1.C
Modified:
    branches/gcc-4_4-branch/gcc/ChangeLog
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_4-branch/gcc/varasm.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42803

[Bug middle-end/42803] [4.4/4.5 Regression] c++ compilation hang

[rguenth at gcc dot gnu dot org]

------- Comment #9 from rguenth at gcc dot gnu dot org  2010-01-20 12:09 -------
Fixed.


-- 

rguenth at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42803