https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115644
Bug ID: 115644
Summary: [gcc][trunk] ICE if redeclare a variable with
different type
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: 141242068 at smail dot nju.edu.cn
Target Milestone: ---
Quick verification link: https://gcc.godbolt.org/z/fdY8KqhK6
The testing program:
```
void foo ()
{
int p[5];
int v = *p;
int *p = 0;
}
```
Compiling this program using gcc-trunk will trigger crash, and dump stacks as
follows:
```
0x23be10c internal_error(char const*, ...)
???:0
0x8948df tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
???:0
0xd120d0 gimple_fold_indirect_ref(tree_node*)
???:0
0xd5b8f7 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
???:0
0xd5f06a gimplify_stmt(tree_node**, gimple**)
???:0
0xd5c472 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
???:0
0xd5f06a gimplify_stmt(tree_node**, gimple**)
???:0
0xd5c75b gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
???:0
0xd5f06a gimplify_stmt(tree_node**, gimple**)
???:0
0xd5bf2a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
???:0
0xd651b3 gimplify_body(tree_node*, bool)
???:0
0xd655f9 gimplify_function_tree(tree_node*)
???:0
0xb87377 cgraph_node::analyze()
???:0
0xb8a6d1 symbol_table::finalize_compilation_unit()
???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
```
