https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112496
Bug ID: 112496
Summary: GCC: 14: internal compiler error: in
vectorizable_nonlinear_induction, at
tree-vect-loop.cc:9573
Product: gcc
Version: 14.0
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: ---
Compiler Explorer: https://gcc.godbolt.org/z/7aq3hjbjK
When compile this program with `gcc-14 -O2`, gcc ICEs:
```
struct T { int x : 24; } v;
void f1(int x) {
while (v.x - ((v.x <<= 1) - v.x)) ;
}
```
The crash output:
```
during GIMPLE pass: vect
<source>: In function 'f1':
<source>:2:6: internal compiler error: in vectorizable_nonlinear_induction, at
tree-vect-loop.cc:9573
2 | void f1(int x) {
| ^~
0x238b15e internal_error(char const*, ...)
???:0
0xa11270 fancy_abort(char const*, int, char const*)
???:0
0x13ec547 vectorizable_induction(_loop_vec_info*, _stmt_vec_info*, gimple**,
_slp_tree*, vec<stmt_info_for_cost, va_heap, vl_ptr>*)
???:0
0x13fe290 vect_analyze_loop(loop*, vec_info_shared*)
???: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.
Compiler returned: 1
```
