[Bug target/15331] New: Assembler error building gnatlib on IRIX 6.5 with GNU as 2.14.91

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

Bootstrapping the current 3.4 branch on IRIX 6.5 with GNU as from the binutils
2.15 branch fails due to what seems to be invalid assembler code:

../../xgcc -B../../ -c -g -O2      -W -Wall -gnatpg  s-mastop.adb -o s-mastop.o -v -save-temps                  
Reading specs from ../../specs
Configured with: /.vol/gcc/src/gcc-3.4-branch-dist/configure --prefix=/.vol/gcc --with-local-prefix=/.vol/gcc --disable-nls --with-gnu-as --with-as=/homes/ro/bin/gas-2.14.91 --enable-libgcj
Thread model: single
gcc version 3.4.1 20040506 (prerelease)
 ../../gnat1 -quiet -dumpbase s-mastop.adb -g -gnatpg -O2 -W -Wall -gnatO s-mastop.o s-mastop.adb -o s-mastop.s
 /homes/ro/bin/gas-2.14.91 --traditional-format -EB -O2 -g -no-mdebug -v -n32 -mips3 -o s-mastop.o s-mastop.s
GNU assembler version 2.14.91 (mips-sgi-irix6.5) using BFD version 2.14.91 20040506
s-mastop.s: Assembler messages:
s-mastop.s:108: Error: illegal operands `ld'
[...]

The file assembles ok with GNU as 2.14.90 20040209, but the affected lines seem
bogus nonetheless:

	ld $16,  16*8+ +16($4)

I'm not sure if the second `+' is interpreted as a unary plus here.  But (after
removing several instances of .[ul]eb128, even the native assembler groks this
file without problems.

Environment:
System: IRIX64 columba 6.5 10120104 IP27


	
host: mips-sgi-irix6.5
build: mips-sgi-irix6.5
target: mips-sgi-irix6.5
configured with: /.vol/gcc/src/gcc-3.4-branch-dist/configure --prefix=/.vol/gcc --with-local-prefix=/.vol/gcc --disable-nls --with-gnu-as --with-as=/homes/ro/bin/gas-2.14.91 --enable-libgcj

How-To-Repeat:
Bootstrap current 3.4 branch on IRIX 6.5 with Ada included as described above.

-- 
           Summary: Assembler error building gnatlib on IRIX 6.5 with GNU as
                    2.14.91
           Product: gcc
           Version: 3.4.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ro at techfak dot uni-bielefeld dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: mips-sgi-irix6.5
  GCC host triplet: mips-sgi-irix6.5
GCC target triplet: mips-sgi-irix6.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15331