[clang] [X86][Clang] Support constexpr evaluation of cvtpd2ps intrinsics (PR #169980)

[Hamza Hassanain via cfe-commits]

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@@ -12165,7 +12165,36 @@ static bool evalShuffleGeneric(
   Out = APValue(ResultElements.data(), ResultElements.size());
   return true;
 }
+static bool ConvertDoubleToFloatStrict(EvalInfo &Info, const Expr *E,
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HamzaHassanain wrote:

Thanks for the note.

Let me confirm your intent:

Do you want parity so both evaluators accept/reject the same constexpr cases and emit the same diagnostics?

Or should I mirror the behavior of handling the pd2ps intrinsics in [InterpBuiltin.cpp](vscode-file://vscode-app/usr/share/code/resources/app/out/vs/code/electron-browser/workbench/workbench.html)?


https://github.com/llvm/llvm-project/pull/169980