[Bug tree-optimization/26854] Inordinate compile times on large routines

["lucier at math dot purdue dot edu" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #16 from lucier at math dot purdue dot edu  2006-11-30 04:36 -------
I now get a segfault when trying this with the current 4.2.0 branch:

[descartes:~/Desktop] lucier% time /pkgs/gcc-4.2.0-64-test/bin/gcc -mcpu=970
-m64 -no-cpp-precomp -Wall -W -Wno-unused -O1 -fno-math-errno -fschedule-insns2
-fno-trapping-math -fno-strict-aliasing -fwrapv -fomit-frame-pointer -fPIC
-fno-common -bundle -flat_namespace -undefined suppress
-I/usr/local/Gambit-C/include/ -ftime-report -fmem-report all.i
gcc: unrecognized option '-no-cpp-precomp'
all.c: In function '___H__20_all_2e_o1':
all.c:132856: internal compiler error: Bus error
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
2100.522u 139.425s 49:12.72 75.8%       0+0k 0+13io 0pf+0w

running gdb with it gives no more information.

Some details:

The STAGE1 compiler was host=powerpc64-darwin and target=powerpc64-darwin:

[descartes:~/programs/gcc/4.2.0] gcc-test% /pkgs/gcc-4.2.0/bin/gcc -v
Using built-in specs.
Target: powerpc-apple-darwin8.8.0
Configured with: ../configure --with-gmp=/pkgs/gmp-4.2.1
--with-mpfr=/pkgs/gmp-4.2.1 --prefix=/pkgs/gcc-4.2.0 --enable-languages=c
--disable-checking
Thread model: posix
gcc version 4.2.0 20061021 (prerelease)

This was the compiler that segfaulted:

(gdb) [descartes:~/Desktop] lucier% /pkgs/gcc-4.2.0-64-test/bin/gcc -v
Using built-in specs.
Target: powerpc64-apple-darwin8.8.0
Configured with: ../configure --build=powerpc64-apple-darwin8.8.0
--host=powerpc64-apple-darwin8.8.0 --target=powerpc64-apple-darwin8.8.0
--enable-languages=c --prefix=/pkgs/gcc-4.2.0-64-test
--with-gmp=/pkgs/gmp-4.2.1-64/ --with-mpfr=/pkgs/gmp-4.2.1-64/
Thread model: posix
gcc version 4.2.0 20061129 (prerelease)
[descartes:~/programs/gcc/4.2.0] gcc-test% cat gcc/BASE-VER 
4.2.0
[descartes:~/programs/gcc/4.2.0] gcc-test% cat gcc/DATESTAMP 
20061129
[descartes:~/programs/gcc/4.2.0] gcc-test% cat LAST_UPDATED 
Wed Nov 29 17:51:48 EST 2006
Wed Nov 29 22:51:48 UTC 2006 (revision 119334M)
[descartes:~/programs/gcc/4.2.0] gcc-test% gdb -v
GNU gdb 6.3.50-20050815 (Apple version gdb-573) (Fri Oct 20 15:54:33 GMT 2006)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "powerpc-apple-darwin".


A full bootstrap was done.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26854