[Bug bootstrap/16177] New: Strange memory requirements when bootstrapping GCC 3.5 with GCC 3.5

[v dot haisman at sh dot cvut dot cz]

I am experiencing strange behaviour of GCC 3.5 when used as bootstrap compiler
for the first stage of bootstrap of GCC 3.5 from CVS lately.

The bootstrap compiler and the same flags used for the new compiler:
wilx@logout:::~> gcc -v
Reading specs from /home/4/wilx/lib/gcc/i386-unknown-freebsd4.10/3.5.0/specs
Configured with: ../srcdir/configure --disable-nls
--enable-version-specific-runtime-libs --enable-dwarf2 --with-cpu=pentium3
--with-arch=pentium3 --with-system-zlib --disable-shared --prefix=/home/4/wilx
--enable-languages=c,c++,objc --disable-sjlj-exceptions
--enable-shared=libstdc++ --enable-libmudflap
Thread model: posix
gcc version 3.5.0 20040615 (experimental)

When it gets to compiling insn-attrtab.c it eats huge amounts of memory. Snippet
of top's statistics:
28618 wilx            -22   0   289M 54384K swread   0:05  0.55%  0.54% cc1

But if I use GCC 3.3.x that is already installed on the box the first stage and
insn-attrtab.c compiles fine without such humungous requirements for memory and
later stages don't exhibit this behaviour. At any time of the bootstrap with GCC
3.3.x the requirements don't get obove 100MB.

-- 
           Summary: Strange memory requirements when bootstrapping GCC 3.5
                    with GCC 3.5
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: v dot haisman at sh dot cvut dot cz
                CC: gcc-bugs at gcc dot gnu dot org,v dot haisman at sh dot
                    cvut dot cz
 GCC build triplet: i386-unknown-freebsd4.10
  GCC host triplet: i386-unknown-freebsd4.10
GCC target triplet: i386-unknown-freebsd4.10


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16177