c/3344: internal compiler error in 'change_address', at emit-rtl.c on alpha

[redstone@cs.washington.edu]

>Number:         3344
>Category:       c
>Synopsis:       internal compiler error in 'change_address', at emit-rtl.c on alpha
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jun 21 11:46:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Joshua Redstone
>Release:        2.95.3 20010315 (release)
>Organization:
>Environment:
main% uname -a
OSF1 venus.cs.washington.edu V4.0 1229 alpha
main% /projects/smt11/redstone/usr/local/bin/gcc  -v
Reading specs from /projects/smt11/redstone/usr/local/lib/gcc-lib/alphaev6-dec-osf4.0f/2.95.3/specs
gcc version 2.95.3 20010315 (release)
>Description:
On an alpha running Tru64 4.0f, when compiling c-parse.c from application 126.gcc of SPECInt95 with the flag -ffixed-\$15, I get interenal compiler error.  Other flags, such as -ffixed-\$14 don't induce the error.  Similarly, other c files compile OK with the -ffixed-\$5 flag. Here is the command line that produces the error:

main% /projects/smt11/redstone/usr/local/bin/gcc  -v -save-temps    -c -o c-parse.o  -DSPEC  -O3 -mcpu=ev6 -ffixed-\$15 c-parse.c
Reading specs from /projects/smt11/redstone/usr/local/lib/gcc-lib/alphaev6-dec-osf4.0f/2.95.3/specs
gcc version 2.95.3 20010315 (release)
 /projects/smt11/redstone/usr/local/lib/gcc-lib/alphaev6-dec-osf4.0f/2.95.3/cpp0 -lang-c -v -D__GNUC__=2 -D__GNUC_MINOR__=95 -Dunix -D__osf__ -D_LONGLONG -DSYSTYPE_BSD -D_SYSTYPE_BSD -D__unix__ -D__osf__ -D_LONGLONG -D__SYSTYPE_BSD__ -D_SYSTYPE_BSD -D__unix -D__SYSTYPE_BSD -Asystem(unix) -Asystem(xpg4) -D__OPTIMIZE__ -D__LANGUAGE_C__ -D__LANGUAGE_C -DLANGUAGE_C -Acpu(alpha) -Amachine(alpha) -D__alpha -D__alpha__ -D__alpha_ev6__ -Acpu(ev6) -D__alpha_bwx__ -Acpu(bwx) -D__alpha_max__ -Acpu(max) -D__alpha_fix__ -Acpu(fix) -DSPEC c-parse.c c-parse.i
GNU CPP version 2.95.3 20010315 (release)
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /projects/smt11/redstone/usr/local/lib/gcc-lib/alphaev6-dec-osf4.0f/2.95.3/../../../../alphaev6-dec-osf4.0f/include
 /projects/smt11/redstone/usr/local/lib/gcc-lib/alphaev6-dec-osf4.0f/2.95.3/include
 /usr/include
End of search list.
The following default directories have been omitted from the search path:
 /projects/smt11/redstone/usr/local/lib/gcc-lib/alphaev6-dec-osf4.0f/2.95.3/../../../../include/g++-3
End of omitted list.
 /projects/smt11/redstone/usr/local/lib/gcc-lib/alphaev6-dec-osf4.0f/2.95.3/cc1 c-parse.i -quiet -dumpbase c-parse.c -mcpu=ev6 -O3 -version -ffixed-$15 -o c-parse.s
GNU C version 2.95.3 20010315 (release) (alphaev6-dec-osf4.0f) compiled by GNU C version 2.95.3 20010315 (release).
In file included from /projects/smt11/redstone/usr/local/lib/gcc-lib/alphaev6-dec-osf4.0f/2.95.3/include/stdarg.h:36,
                 from gvarargs.h:4,
                 from tree.h:20,
                 from c-parse.y:50:
/projects/smt11/redstone/usr/local/lib/gcc-lib/alphaev6-dec-osf4.0f/2.95.3/include/va-alpha.h:36: warning: redefinition of `va_list'
/projects/smt11/redstone/usr/local/lib/gcc-lib/alphaev6-dec-osf4.0f/2.95.3/include/va_list.h:7: warning: `va_list' previously declared here
bison.simple: In function `yyparse':
bison.simple:315: warning: type mismatch in implicit declaration for built-in function `alloca'
bison.simple:674: Internal compiler error in `change_address', at emit-rtl.c:1619
Please submit a full bug report.
See <URL: http://www.gnu.org/software/gcc/bugs.html > for instructions.
>How-To-Repeat:
Compile the file as I described.  The file is located in 
/spec/benchspec/CINT95/126.gcc/src of the SPECInt95 distribution.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: