https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113692
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2024-01-31
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> My bet you could get the same error with:
> _BitInt(129) i;
>
> void *
> foo(void)
> {
> void *ret = 0;
> ret = (void *)(__SIZETYPE__)(i & 1);
> return ret;
> }
the above works.
The question is there an extra cast in the IR between _BitInt and void*
required or not?
PHIOPT/match-and-simplify does:
```
phiopt match-simplify trying:
_2 != 0 ? 1B : 0B
Matching expression match.pd:2274, gimple-match-3.cc:23
Matching expression match.pd:2823, gimple-match-2.cc:35
Matching expression match.pd:2826, gimple-match-1.cc:66
Matching expression match.pd:2833, gimple-match-2.cc:96
Matching expression match.pd:2274, gimple-match-3.cc:23
Applying pattern match.pd:3396, gimple-match-6.cc:2527
Applying pattern match.pd:5327, gimple-match-9.cc:17991
phiopt match-simplify back:
_5 = _2 != 0;
_6 = (void *) _2;
result: _6
```
Notice how there is just cast a between _2 and `void*`.
