GCC Bugreport: Error compiling SPEC 2000 benchmark gzip

K C kcorry@purdue.edu
Tue Mar 28 12:45:00 GMT 2000


Greetings,

I encountered an internal compiler error with gcc when compiling the program
164.gzip, which is one of the integer benchmarks in the SPEC
CPU2000 suite.

I am using version 2.95.2 19991024 (release) of the gcc compiler.

It is running on an Intel-based PC, with a 750 MHz Pentium III, 256 MB of main
memory. The operating system is Linux, Red Hat 6.1 distribution, kernel version
2.2.14.

The original command line is:
gcc -c -o trees.o -O2 -fno-force-mem trees.c

And the error produced is:
trees.c: In function `build_tree':
trees.c:688: Internal compiler error in `loop_iterations', at unroll.c:3689
Please submit a full bug report.
See <URL: http://www.gnu.org/software/gcc/faq.html#bugreport > for instructions.

As per the instructions on the bug-reporting web-page, I ran the following
command:
gcc -v --save-temps -c -o trees.o -O2 -fno-force-mem trees.c

Which produced the output:
Reading specs from
/home/fjord/c/corry/gnu/lib/gcc-lib/i686-pc-linux-gnu/2.95.2/specs
gcc version 2.95.2 19991024 (release)
 /home/fjord/c/corry/gnu/lib/gcc-lib/i686-pc-linux-gnu/2.95.2/cpp -lang-c -v
-D__GNUC__=2 -D__GNUC_MINOR__=95 -D__ELF__ -Dunix -D__i386__ -Dlinux -D__ELF__
-D__unix__ -D__i386__ -D__linux__ -D__unix -D__linux -Asystem(posix)
-D__OPTIMIZE__ -Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ -Di686
-Dpentiumpro -D__i686 -D__i686__ -D__pentiumpro -D__pentiumpro__ trees.c trees.i
GNU CPP version 2.95.2 19991024 (release) (i386 Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/home/fjord/c/corry/gnu/lib/gcc-lib/i686-pc-linux-gnu/2.95.2/../../../../i686-pc-linux-gnu/include
/home/fjord/c/corry/gnu/lib/gcc-lib/i686-pc-linux-gnu/2.95.2/include
/usr/include
End of search list.
The following default directories have been omitted from the search path:
/home/fjord/c/corry/gnu/lib/gcc-lib/i686-pc-linux-gnu/2.95.2/../../../../include/g++-3
End of omitted list.
 /home/fjord/c/corry/gnu/lib/gcc-lib/i686-pc-linux-gnu/2.95.2/cc1 trees.i -quiet
-dumpbase trees.c -O2 -version -fno-force-mem -o trees.s
GNU C version 2.95.2 19991024 (release) (i686-pc-linux-gnu) compiled by GNU C
version 2.95.2 19991024 (release).
trees.c: In function `build_tree':
trees.c:688: Internal compiler error in `loop_iterations', at unroll.c:3689
Please submit a full bug report.
See <URL: http://www.gnu.org/software/gcc/faq.html#bugreport > for instructions.


Included below is the gzip'd trees.i file produced by this last command. Please
let me know if there is any additional information you need.

Thanks!

Kevin Corry
kcorry@purdue.edu
trees.i.gz

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