https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114451
Bug ID: 114451
Summary: regression : ICE on switch over enum class
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: Alexandre.BUSTICO at enac dot fr
Target Milestone: ---
Same bug had been reported as BugID 103825 for gcc12.0.0 The bug has been fixed
for subsequent gcc version : 12.2, 13.1 and 13.2 does not trigger the bug. The
bug is exhibited again with gcc14.0.0 devel.
code that trigger ICE :
enum class En {A};
struct St {En field :1;};
int main(void)
{
volatile St s = {.field = En::A};
switch(s.field) {
case En::A : break;
}
}
error message :
<source>: In function 'int main()':
<source>:4:5: error: type precision mismatch in switch statement
4 | int main(void)
| ^~~~
switch (retval.0) <default: <D.6394>, case 0: <D.6388>>
<source>:4:5: internal compiler error: 'verify_gimple' failed
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1
gotbolt link : https://compiler-explorer.com/z/Eh39WKvxo
