[llvm-bugs] [Bug 52206] New: Clang allow inconsistent deduction for auto return type when using if consteval

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=52206

            Bug ID: 52206
           Summary: Clang allow inconsistent deduction for auto return
                    type when using if consteval
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++2b
          Assignee: unassignedclangbugs at nondot.org
          Reporter: hewillk at gmail.com
                CC: blitzrakete at gmail.com, erik.pilkington at gmail.com,
                    llvm-bugs at lists.llvm.org, richard-llvm at metafoo.co.uk

constexpr auto f() {
  if consteval  { return 0;   }
  if !consteval { return 0.0; }
}

int main() {
  auto x = f();
  constexpr auto y = f();
}

https://godbolt.org/z/s5voohMnd

clang accepts this.

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