[Bug target/118339] New: invalid string passed to target_clones causes an ICE

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118339

            Bug ID: 118339
           Summary: invalid string passed to target_clones  causes an ICE
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---
            Target: aarch64

Testcase:
```
__attribute__ ((target_clones ("xyz,default"))) int foo ();

int bar () {
  return foo();
}
```

The ICE:
```
during IPA pass: targetclone
<source>: In function '_Z3foov.resolver':
<source>:6:1: internal compiler error: in get_feature_mask_for_version, at
config/aarch64/aarch64.cc:20316
    6 | }
      | ^
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1
```