https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101162
Bug ID: 101162
Summary: [12 Regression] ICE (verify_gimple failed) for switch
returning pointer-to-members
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: reichelt at gcc dot gnu.org
Target Milestone: ---
The following valid testcase triggers an ICE on trunk when compiled with "-O2":
===================================
struct A
{
int i1, i2, i3, i4, i5, i6;
};
int A::* foo(int i)
{
switch (i)
{
case 1: return &A::i1;
case 2: return &A::i2;
case 3: return &A::i3;
case 4: return &A::i4;
case 5: return &A::i5;
case 6: return &A::i6;
}
return 0;
}
===================================
bug.cc: In function 'int A::* foo(int)':
bug.cc:19:1: error: invalid types for 'mult_expr'
19 | }
| ^
<<< Unknown tree: offset_type >>>
<<< Unknown tree: offset_type >>>
<<< Unknown tree: offset_type >>>
_7 = 4 * _6;
during GIMPLE pass: switchconv
bug.cc:19:1: internal compiler error: verify_gimple failed
0x11025aa verify_gimple_in_cfg(function*, bool)
../../gcc/gcc/tree-cfg.c:5531
0xfe1587 execute_function_todo
../../gcc/gcc/passes.c:2042
0xfe1fab execute_todo
../../gcc/gcc/passes.c:2096
Please submit a full bug report, [etc.]
This regression was introduced between 2021-06-14 and 2021-06-21.
