[Bug c++/90398] New: Segmentation fault when using [[assert]] and -fno-exception

[moussu.robin at pm dot me]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90398

            Bug ID: 90398
           Summary: Segmentation fault when using [[assert]] and
                    -fno-exception
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: moussu.robin at pm dot me
  Target Milestone: ---

Reproduce error with https://godbolt.org/z/cjlS79
gcc version: 9.0.1 (concept branch)

The following code, when compiled with
    -std=c++2a -O3 -fno-exceptions
has a segmentation fault

```
void foo() {
    [[assert: true]] // same thing with false, and if using a variable
}
```

<source>: In function 'void foo()':
<source>:3:17: internal compiler error: Segmentation fault
    3 |     [[assert: true]]
      |                    ^

Note: it may be related with that bug
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90396