https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111254
Bug ID: 111254
Summary: Dodgy variable name (*_11 = PHI <_1(25),
_25(23)>.CargoPacket::Pool...) in
-Wmaybe-uninitialized
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
Created attachment 55824
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55824&action=edit
cargopacket.cpp.ii.xz
With
gcc (Gentoo 14.0.0 p, commit d0b55776a4e1d2f293db5ba0e4a04aefed055ec4) 14.0.0
20230830 (experimental) c121afc3b6c96a1f229ba0c4a4de6bd4b6be9a53:
```
$ g++ -c cargopacket.cpp.ii -O2 -Wmaybe-uninitialized
[...]
In file included from
/var/tmp/portage/games-simulation/openttd-13.4/work/openttd-13.4/src/base_station_base.h:13:
In static member function ‘static void Pool<Titem, Tindex, Tgrowth_step,
Tmax_size, Tpool_type, Tcache, Tzero>::PoolItem<Tpool>::operator delete(void*)
[with Pool<Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero>*
Tpool = (& _cargopacket_pool); Titem = CargoPacket; Tindex = unsigned int; long
unsigned int Tgrowth_step = 1024; long unsigned int Tmax_size = 16773120;
PoolType Tpool_type = PT_NORMAL; bool Tcache = true; bool Tzero = false]’,
inlined from ‘static void Pool<Titem, Tindex, Tgrowth_step, Tmax_size,
Tpool_type, Tcache, Tzero>::PoolItem<Tpool>::operator delete(void*) [with
Pool<Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero>* Tpool
= (& _cargopacket_pool); Titem = CargoPacket; Tindex = unsigned int; long
unsigned int Tgrowth_step = 1024; long unsigned int Tmax_size = 16773120;
PoolType Tpool_type = PT_NORMAL; bool Tcache = true; bool Tzero = false]’ at
/var/tmp/portage/games-simulation/openttd-13.4/work/openttd-13.4/src/core/pool_type.hpp:256:15,
inlined from ‘void Pool<Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type,
Tcache, Tzero>::CleanPool() [with Titem = CargoPacket; Tindex = unsigned int;
long unsigned int Tgrowth_step = 1024; long unsigned int Tmax_size = 16773120;
PoolType Tpool_type = PT_NORMAL; bool Tcache = true; bool Tzero = false]’ at
/var/tmp/portage/games-simulation/openttd-13.4/work/openttd-13.4/src/core/pool_func.hpp:200:3:
/var/tmp/portage/games-simulation/openttd-13.4/work/openttd-13.4/src/core/pool_type.hpp:261:45:
warning: ‘*MEM[(struct CargoPacket * *)_13].CargoPacket::Pool<CargoPacket,
unsigned int, 1024, 16773120, PT_NORMAL, true, false>::PoolItem<(&
_cargopacket_pool)>.Pool<CargoPacket, unsigned int, 1024, 16773120, PT_NORMAL,
true, false>::PoolItem<(& _cargopacket_pool)>::index’ may be used uninitialized
[-Wmaybe-uninitialized]
261 | Tpool->FreeItem(pn->index);
| ~~~~^~~~~
In static member function ‘static void Pool<Titem, Tindex, Tgrowth_step, Tmax_
[...]
```
