================
@@ -505,6 +505,9 @@ COMPATIBLE_LANGOPT(IncrementalExtensions, 1, 0, " True if
we want to process sta
BENIGN_LANGOPT(CheckNew, 1, 0, "Do not assume C++ operator new may not return
NULL")
+BENIGN_LANGOPT(CheckConstexprFunctionBodies, 1, 1,
+ "True if we want to emit a diagnostics for a constexpr function
"
----------------
erichkeane wrote:
```suggestion
"Emit diagnostics for a constexpr function body that can never
be used in a constant expression."
```
Also: I think this is hacky and unfortunate that we're using a bit in
`LangOpts` to control a warning's state, which feels kind of dangerous. I'd
love a `FIXME` above this that proposes 1 of 2 ideas: Either find a way for
Diagnostics TableGen to be language mode specific, or find a way to put this
into CompilerInvocatoin in a way that survives argument rewriting.
https://github.com/llvm/llvm-project/pull/94347
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