target/5357: SPARC: illegal (?) combination of -mcpu=supersparc and -m64 causes ICE

[lucier@math.purdue.edu]

>Number:         5357
>Category:       target
>Synopsis:       SPARC: illegal (?) combination of -mcpu=supersparc and -m64 causes ICE
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jan 10 18:46:02 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     B. Lucier
>Release:        gcc version 3.1 20020102 (experimental)
>Organization:
>Environment:
sparcv9-sun-solaris2.8
>Description:
 env LD_LIBRARY_PATH=/pkgs/gcc-3.1v9/lib /pkgs/gcc-3.1v9/bin/gcc -mcpu=supersparc -S setup.i -v
Reading specs from /pkgs/gcc-3.1v9/lib/gcc-lib/sparcv9-sun-solaris2.8/3.1/specs
Configured with: ../configure --prefix=/pkgs/gcc-3.1v9 sparcv9-sun-solaris2.8
Thread model: posix
gcc version 3.1 20020102 (experimental)
 /pkgs/gcc-3.1v9/lib/gcc-lib/sparcv9-sun-solaris2.8/3.1/cc1 -fpreprocessed setup.i -quiet -dumpbase setup.i -mcpu=supersparc -version -o setup.s
GNU CPP version 3.1 20020102 (experimental) (cpplib) (sparc ELF)
GNU C version 3.1 20020102 (experimental) (sparcv9-sun-solaris2.8)
        compiled by GNU C version 3.1 20020102 (experimental).
setup.c: In function `setup_module_phase1':
setup.c:784: unrecognizable insn:
(insn 743 741 745 (set (reg:DI 331)
        (mult:DI (sign_extend:DI (reg:SI 332))
            (const_int 24 [0x18]))) -1 (nil)
    (expr_list:REG_DEAD (reg:SI 332)
        (nil)))
setup.c:784: Internal compiler error in extract_insn, at recog.c:2129
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

setup.i.gz is at

http://www.math.purdue.edu/~lucier/setup.i.gz

I think the problem is because there is an implied -m64
for a compiler built with sparcv9-sun-solaris2.8, which is
probably illegal with -mcpu=supersparc.  Specifying in
addition -m32 gets ride of the ICE.
>How-To-Repeat:

>Fix:

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