Description of problem:
gcc -Wconversion will always complain about invocations of the assert
macro.  Apparently a boolean expression (i.e. of type int) is not
accepted by __builtin_expect, which is called by the assert macro.

Version-Release number of selected component (if applicable):
gcc-3.3.3-7 (for AMD 64)


How reproducible:
Always.

Steps to Reproduce:
1.
cat >t.c <<\EOF
#include <assert.h>

int
main()
{
    assert(1);
    assert(1L);
    assert(1LL);
    assert(&main);
    return 0;
}
EOF
2.gcc -Wconversion t.c

  
Actual results:
t.c: In function `main':
t.c:6: warning: passing arg 1 of `__builtin_expect' with different
width due to prototype
t.c:6: warning: passing arg 2 of `__builtin_expect' with different
width due to prototype
t.c:7: warning: passing arg 1 of `__builtin_expect' with different
width due to prototype
t.c:7: warning: passing arg 2 of `__builtin_expect' with different
width due to prototype
t.c:8: warning: passing arg 1 of `__builtin_expect' with different
width due to prototype
t.c:8: warning: passing arg 2 of `__builtin_expect' with different
width due to prototype
t.c:9: warning: passing arg 1 of `__builtin_expect' with different
width due to prototype
t.c:9: warning: passing arg 2 of `__builtin_expect' with different
width due to pro

Expected results:
[silence, certainly for line 6, but probably for the others as well]

Additional info:

After preprocessing, the first assert becomes:
    ((void) (__builtin_expect (!!(1), 1) ? 0 : (__assert_fail ("1",
"t.c", 6, __PRETTY_FUNCTION__), 0)));
There is nothing suspicious about the arguments to __builtin_expect.

This might be related to 
<https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=103017>