[Bug target/31100] New: ASM_OUTPUT_ALIGN_WITH_NOP wrong on sparc/gas

["Erwin dot Unruh at fujitsu-siemens dot com" <gcc-bugzilla at gcc dot gnu dot org>]

The macro ASM_OUTPUT_ALIGN_WITH_NOP on sparc contains an explicit filler on the
align statement. This is given as a word representing the NOP. The GNU
assembler only uses the last byte of the filler. This generates wrong code. The
original SUN assembler needs this word to insert NOPs instead of zero.
The testcase is compiled with gcc -v -S -O3 -falign-labels=16 test.c

The testcase:
int f(int i)
{
        int res;
        switch ( i )
        {
        case 5:
                res = i -i ;
                break;
        default:
                res = i* 2;
        }
        return res;
}


int f(int);
main()
{
        return f(2);
}


-- 
           Summary: ASM_OUTPUT_ALIGN_WITH_NOP wrong on sparc/gas
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: Erwin dot Unruh at fujitsu-siemens dot com
 GCC build triplet: sparc-sun-solaris2.8
  GCC host triplet: sparc-sun-solaris2.8
GCC target triplet: sparc-sun-solaris2.8


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31100