[Bug target/42324] [4.3/4.4/4.5 Regression] Gcc doesn't follow x86-64 psABI on _Bool

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2009-12-07 20:49 -------
The ABI says "is passed", not "is returned".  The frontend did return-value
promotion until I disabled that (see endless discussions and libffi fixes
at that point).

So where is a _Bool passed in a registed or on the stack in your testcases?
I see the _Bool on stack is properly extended to 32bits.  That the ABI
requires 64bits here for _Bool seems odd - does it require that for
char and int, too?

There is an invalid dup for the return value promotion btw.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.3.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42324