[Bug c/2803] casts in asm act as lvalues

[astrange at ithinksw dot com]

------- Comment #12 from astrange at ithinksw dot com  2009-05-25 20:26 -------
I noticed this is still accepted by gcc 4.5; one stuck into ffmpeg and broke
the build with another compiler.

For instance, this only fails in c():

int as(int a)
{
    asm ("" : : "m"((int)a));
}

int c(int a)
{
    return *&((int)a);
}

> /usr/local/gcc45/bin/gcc -S test.c
test.c: In function 'c':
test.c:8: error: lvalue required as unary '&' operand


-- 

astrange at ithinksw dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |astrange at ithinksw dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=2803