https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112500
Bug ID: 112500
Summary: GCC: 14: internal compiler error: in expand_asm_stmt,
at cfgexpand.cc:3419
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/PbTj4Gq3r
When compiling this program with `gcc-14 -O0`, gcc crashes:
```
void f(char *a, unsigned int l) {
asm volatile("" ::"m"((char (*)[l])a--));
}
```
The crash output:
```
during RTL pass: expand
<source>: In function 'f':
<source>:2:3: internal compiler error: in expand_asm_stmt, at cfgexpand.cc:3419
2 | asm volatile("" ::"m"((char (*)[l])a--));
| ^~~
0x238b15e internal_error(char const*, ...)
???:0
0xa11270 fancy_abort(char const*, int, char const*)
???: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
```
