[Bug c/26004] New: gcc errors on valid code

[gcc-bugzilla at gcc dot gnu dot org]

Gcc complains about legal code.  Test case stripped down from a gdb
testsuite test case.

Environment:
System: Linux fishfood.ninemoons.com 2.6.14-1.1656_FC4 #1 Thu Jan 5 22:13:22
EST 2006 i686 i686 i386 GNU/Linux
Architecture: i686
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: /src/latest/trunk/src/gcc/configure -v
--prefix=/opt/local/latest/trunk --enable-languages=c,c++
--cache-file=.././config.cache --srcdir=/src/latest/trunk/src/gcc

How-To-Repeat:

$ cat /tmp/bug.c
struct s_1 { short s[1]; } z_1;

struct s_1
add_struct_1 (struct s_1 s)
{
  return s;
}

struct s_1
wack_struct_1 (void)
{
  register struct s_1 u = z_1;
  u = add_struct_1 (u);
  return u;
}

$ gcc -c /tmp/bug.c
/tmp/bug.c: In function ‘wack_struct_1’:
/tmp/bug.c:13: error: address of register variable ‘u’ requested


-- 
           Summary: gcc errors on valid code
           Product: gcc
           Version: 2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: fnf at specifix dot com
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26004