[Bug optimization/11252] New: Code generation bug

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

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11252

           Summary: Code generation bug
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: simonmar@microsoft.com
                CC: gcc-bugs@gcc.gnu.org
 GCC build triplet: sparc-sun-solaris2.8
  GCC host triplet: sparc-sun-solaris2.8
GCC target triplet: sparc-sun-solaris2.8

The attached file (how *does* one attach files here?) generates incorrect code 
when compiled with GCC 3.3 on sparc-sun-solaris2.8.

Relevant details:

ystem type: SunOS usf-cf-sparc-solaris-2 5.8 Generic_108528-17 sun4u sparc 
SUNW,Ultra-60.

GCC configure options:

  $ ./configure --prefix=$HOME --enable-languages=c,c++

Command line:

  $ gcc -O -S Test.c

Description of the problem: the generated assembly contains the following 
chunk (around line 26):

.LL6:
        ld      [%g1+%lo(MainCapability+116)], %g1
        ld      [%g1+24], %g1
        cmp     %g1, 0
        bne     .LL7
        add     %i0, -4, %i0
        ...

That 'bne' should be 'bne,a', as far as I can tell.