[Bug c++/32350] New: Very high compile times for template code

["georgeh at rentec dot com" <gcc-bugzilla at gcc dot gnu dot org>]

The attached code takes 1m29s to compile on my machine with 4.2.0 in 64-bit
mode, and takes 0.5s on 4.0.3


Using built-in specs.
Target: x86_64-suse-linux
Configured with: ../../gcc-4.2.0/configure --enable-languages=c,c++,fortran
--prefix=/usr/local/products/gcc/4.2.0-pa-64 --with-gnu-as
--with-as=/usr/local/products/gcc/binutils-2.17-64/bin/as --with-gnu-ld
--with-ld=/usr/local/products/gcc/binutils-2.17-64/bin/ld
--enable-threads=posix --enable-shared --enable-__cxa_atexit
--with-gmp=/usr/local/products/gcc/gmp-4.2-64
--with-mpfr=/usr/local/products/gcc/mpfr-2.2.1-64
--enable-libstdcxx-allocator=pool x86_64-suse-linux
Thread model: posix
gcc version 4.2.0

monsterd09:/work/nova/2300> time /usr/local/products/gcc/4.2.0-pa-64/bin/g++ 
-O0 -I/work/nova/sts5/beta/src -I/work/ren/ren/src -I/work/ren/ren.ext/src
-D_LARGEFILE64_SOURCE -ftemplate-depth-64 -pedantic-errors -Wall
-Wno-unknown-pragmas -W -Woverloaded-virtual -fno-strict-aliasing -fsigned-char
-Wno-long-long test_fixedpoint_case.C

real    1m29.184s
user    1m28.338s
sys     0m0.204s


-- 
           Summary: Very high compile times for template code
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: georgeh at rentec dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32350