[Bug middle-end/24952] New: ICE: RTL check: expected code 'set' or 'clobber', have 'unspec' in try_combine, at combine.c:2898

["aj at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Running the GCC testsuite I see the following ICE:

Executing on host: /abuild/aj/gcc/gcc/xgcc -B/abuild/aj/gcc/gcc/
/aj-cvs/gcc-svn/branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/vmx/3c-01a.c   -O1
 -malt
ivec -mabi=altivec -std=gnu99 -fno-show-column -S  -m64 -o 3c-01a.s    (timeout
= 300)
/aj-cvs/gcc-svn/branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/vmx/3c-01a.c: In
function 'f':
/aj-cvs/gcc-svn/branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/vmx/3c-01a.c:1450:
internal compiler error: RTL check: expected code 'set' or 'clobber', h
ave 'unspec' in try_combine, at combine.c:2898
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
compiler exited with status 1
output is:
/aj-cvs/gcc-svn/branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/vmx/3c-01a.c: In
function 'f':
/aj-cvs/gcc-svn/branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/vmx/3c-01a.c:1450:
internal compiler error: RTL check: expected code 'set' or 'clobber', h
ave 'unspec' in try_combine, at combine.c:2898
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

FAIL: gcc.dg/vmx/3c-01a.c  -O1  (test for excess errors)

This is with:
/opt/gcc/4.1-devel/bin/gcc -v
Using built-in specs.
Target: powerpc64-suse-linux-gnu
Configured with: /aj-cvs/gcc-svn/branches/gcc-4_1-branch/configure
--prefix=/opt/gcc/4.1-devel --enable-checking=misc,tree,gc,rtl,rtlflag,assert
--enable-threads=posix --enable-clocale=gnu --enable-__cxa_atexit
--enable-shared --enable-languages=c,c++,treelang,java,f95,objc
--with-system-zlib --with-cpu=default32 powerpc64-suse-linux-gnu
Thread model: posix
gcc version 4.1.0 20051119 (prerelease)


-- 
           Summary: ICE:  RTL check: expected code 'set' or 'clobber', have
                    'unspec' in try_combine, at combine.c:2898
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: aj at gcc dot gnu dot org
 GCC build triplet: powerpc64-linux-gnu
  GCC host triplet: powerpc64-linux-gnu
GCC target triplet: powerpc64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24952