------- Additional Comments From pbrook at gcc dot gnu dot org 2005-07-21
21:06 -------
gcc4 behaviour seems fine to me.
A slightly simpler example
int foo(int a)
{
int b;
asm ("" : "+r" (b) : "r" (a));
return b;
}
Can be (and is) legitimately be transformed into
int foo(int a)
{
asm ("" : "+r" (a) : "r" (a));
return a;
}
In which case it's much more obvious that the compiler is going to allocate
the same register.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20718
