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From: "mital at mitalashok dot co.uk" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/115583] New: Call to consteval function in `if consteval` immediate function context rejected at -O1
Date: Fri, 21 Jun 2024 16:41:17 +0000	[thread overview]
Message-ID: <bug-115583-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115583

            Bug ID: 115583
           Summary: Call to consteval function in `if consteval` immediate
                    function context rejected at -O1
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mital at mitalashok dot co.uk
  Target Milestone: ---

Reduced from https://stackoverflow.com/q/78652860

This valid code:

```
consteval int f(int i) {
  return i;
}
constexpr int g(int i) {
  if consteval {
    return f(i);
  } else {
    return i;
  }
}
int main() {
  return g(1);
}
```

Compiles at -O0, but is rejected at -O1: https://godbolt.org/z/bP9rEsqc8

             reply	other threads:[~2024-06-21 16:41 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-21 16:41 mital at mitalashok dot co.uk [this message]
2024-06-21 16:47 ` [Bug c++/115583] C++23: " pinskia at gcc dot gnu.org
2024-06-21 20:32 ` [Bug c++/115583] [14/15 Regression] C++23: Call to consteval function in `if consteval` immediate function context rejected at -O1 since r14-4140 ppalka at gcc dot gnu.org
2024-06-21 20:36 ` pinskia at gcc dot gnu.org
2024-06-24 17:03 ` mpolacek at gcc dot gnu.org
2024-06-27 21:13 ` mpolacek at gcc dot gnu.org

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